GSM/EDGE BSS, Rel. RG20(BSS), Operating Documentation, Issue 07 Reference 1 Traffic Measurement DN9813827 Issue 13-5 Approval Date 2011-09-30 Confidential
Nov 29, 2015
GSM/EDGE BSS, Rel. RG20(BSS), Operating Documentation, Issue 07
Reference
1 Traffic Measurement
DN9813827
Issue 13-5Approval Date 2011-09-30
Confidential
2 DN9813827Issue 13-5
1 Traffic Measurement
Id:0900d8058087f108Confidential
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Installation, Betrieb, Wartung und sonstige Handhabung des Produktes darf nur durch geschultes und qualifiziertes Personal unter Beachtung der anwendbaren Sicherheits-anforderungen erfolgen.
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Table of contentsThis document has 330 pages.
1 Summary of changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2 1 Traffic Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3 Counters of Traffic Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313.1 001000 / SEIZURE ATTEMPTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313.2 001001 / SEIZURE ATTEMPTS WITH BUSY SDCCH . . . . . . . . . . . . . 313.3 001002 / TRANSACTIONS FAIL DUE TO BSS FAIL . . . . . . . . . . . . . . 323.4 001003 / TRANSACTIONS FAIL DUE TO RADIO FAIL . . . . . . . . . . . . 333.5 001004 / TRANSACTIONS FAIL DUE RADIO ON SOURCE CHANNEL
DURING HO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 333.6 001005 / TRANSACTIONS FAIL DUE RADIO ON TARGET CHANNEL343.7 001006 / SUCCESS SEIZURE FOR HO. . . . . . . . . . . . . . . . . . . . . . . . 353.8 001007 / SUCCESS SEIZURE FOR IMMEDIATE ASSIGNMENT . . . . 363.9 001008 / SUCCESS TCH SEIZURE FOR HO. . . . . . . . . . . . . . . . . . . . 363.10 001009 / SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT . . 373.11 001010 / TCH REQUEST SUCCESS AND UNSUCCESS . . . . . . . . . . 373.12 001011 / TCH REQUEST REJECTED DUE TO LACK . . . . . . . . . . . . . 383.13 001012 / TRANSACTIONS ENDED DUE TO BSS PROBLEM. . . . . . . 393.14 001013 / TRANSACTIONS ENDED DUE RADIO FAIL. . . . . . . . . . . . . 403.15 001014 / TRANSACTIONS ENDED DUE SOURCE CHANNEL FAIL DUR-
ING HO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413.16 001015 / TRANSACTIONS ENDED DUE TARGET CHANNEL FAIL . . 423.17 001016 / CALL ATTEMPTS IN THE QUEUE . . . . . . . . . . . . . . . . . . . . 433.18 001017 / HANDOVER ATTEMPTS IN THE QUEUE. . . . . . . . . . . . . . . 433.19 001018 / AVE QUEUE LENGTH FOR CHANNEL SEIZURE REQUEST .
443.20 001019 / QUEUE DENOMINATOR 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 443.21 001020 / AVE QUEUE TIME OF CALL ATTEMPTS . . . . . . . . . . . . . . . 453.22 001021 / QUEUE DENOMINATOR 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 463.23 001022 / AVE QUEUE TIME OF HO ATTEMPTS. . . . . . . . . . . . . . . . . 463.24 001023 / QUEUE DENOMINATOR 3 . . . . . . . . . . . . . . . . . . . . . . . . . . 473.25 001024 / NOT SERVED QUEUED CALL ATTEMPTS . . . . . . . . . . . . . 473.26 001025 / NOT SERVED QUEUED HO ATTEMPTS . . . . . . . . . . . . . . . 483.27 001026 / TCH CALL REQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 493.28 001027 / SDCCH ACT FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503.29 001028 / TCH ACT FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 503.30 001029 / TCH TR FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 513.31 001030 / TCH TR FAIL SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 523.32 001031 / TCH TR FAIL TARGET. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 523.33 001032 / NOT RELEVANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533.34 001033 / SDCCH ABIS PROBL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 533.35 001034 / SDCCH A IF PROBL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 543.36 001035 / SDCCH LAPD FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 553.37 001036 / SDCCH BTS FAIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
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3.38 001037 / SDCCH USER ACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 563.39 001038 / SDCCH BCSU RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 573.40 001039 / SDCCH NETW ACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 583.41 001040 / TRUNK RES INVOC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 583.42 001041 / SUCC TRUNK RES INVOC. . . . . . . . . . . . . . . . . . . . . . . . . . . 593.43 001042 / TRUNK RES INVOC RES REFUSED . . . . . . . . . . . . . . . . . . . 593.44 001043 / TCH REQ FACCH CALLSET . . . . . . . . . . . . . . . . . . . . . . . . . 603.45 001044 / TCH SEIZ FACCH CALL SET . . . . . . . . . . . . . . . . . . . . . . . . . 613.46 001045 / TCH ABIS PROBL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 613.47 001046 / TCH LAPD FAIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 623.48 001047 / TCH BTS FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 633.49 001048 / TCH USER ACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 633.50 001049 / TCH BCSU RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 643.51 001050 / TCH NETW ACT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 643.52 001051 / TCH A IF PROBL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 653.53 001052 / TRHO REQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 663.54 001053 / TRHO ENQUIRIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 663.55 001054 / FOR REL ASSIGN REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . . 673.56 001055 / FOR HO ASSIGN REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . . . 683.57 001056 / QUE ALL ASSIGN REQ ATT. . . . . . . . . . . . . . . . . . . . . . . . . . 683.58 001057 / QUE NALL ASSIGN REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . 693.59 001058 / FOR REL ASSIGN REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . 703.60 001059 / FOR HO ASSIGN REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . 703.61 001060 / QUE ALL ASSIGN REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . 713.62 001061 / QUE NALL ASSIGN REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . 723.63 001062 / FOR REL HO REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 733.64 001063 / FOR HO HO REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 733.65 001064 / QUE ALL HO REQ ATT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 743.66 001065 / QUE NALL HO REQ ATT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 753.67 001066 / FOR REL HO REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 753.68 001067 / FOR HO HO REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 763.69 001068 / QUE ALL HO REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 773.70 001069 / QUE NALL HO REQ FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 783.71 001070 / FORCED RELEASES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 783.72 001071 / FORCED HANDOVERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 793.73 001072 / SDCCH ACT FAIL CALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 793.74 001073 / NOT RELEVANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 803.75 001074 / SDCCH ACT FAIL TARGET . . . . . . . . . . . . . . . . . . . . . . . . . . 803.76 001075 / SDCCH ABIS FAIL CALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 813.77 001076 / SDCCH ABIS FAIL SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . 823.78 001077 / SDCCH ABIS FAIL TARGET. . . . . . . . . . . . . . . . . . . . . . . . . . 833.79 001078 / SDCCH A IF FAIL CALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 843.80 001079 / SDCCH A IF FAIL SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . 843.81 001080 / SDCCH A IF FAIL TARGET . . . . . . . . . . . . . . . . . . . . . . . . . . 853.82 001081 / TCH ACT FAIL CALL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 863.83 001082 / NOT RELEVANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 863.84 001083 / TCH ACT FAIL TARGET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
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3.85 001084 / TCH ABIS FAIL CALL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 873.86 001085 / TCH ABIS FAIL SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . . 883.87 001086 / TCH ABIS FAIL NEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 893.88 001087 / TCH A IF FAIL CALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 903.89 001088 / TCH A IF FAIL SOURCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 903.90 001089 / TCH A IF FAIL NEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 913.91 001090 / TCH REQ UND OVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 923.92 001091 / TCH SEIZ UND OVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 933.93 001092 / TCH REJ REQ UND OVE. . . . . . . . . . . . . . . . . . . . . . . . . . . . 933.94 001093 / SUCC MOC TEST CALL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 943.95 001094 / FAIL MOC TEST CALL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 953.96 001095 / PRI SUBSCR TCH REQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 953.97 001096 / PRI SUBSCR SUCC TCH SEIZ . . . . . . . . . . . . . . . . . . . . . . . 963.98 001097 / NO PRI SUBSCR REFUSED TCH REQ . . . . . . . . . . . . . . . . 963.99 001098 / TCH SEIZ ATT DUE SDCCH CON . . . . . . . . . . . . . . . . . . . . 973.100 001099 / TCH SEIZ DUE SDCCH CON . . . . . . . . . . . . . . . . . . . . . . . . 983.101 001100 / TRUNK TCH REJECTED FR REQ. . . . . . . . . . . . . . . . . . . . . 993.102 001101 / TRUNK TCH REJECTED HR REQ . . . . . . . . . . . . . . . . . . . . 993.103 001102 / FULL TCH REQ SUCC UNSUCC . . . . . . . . . . . . . . . . . . . . 1003.104 001103 / HALF TCH REQ SUCC UNSUCC . . . . . . . . . . . . . . . . . . . . 1013.105 001104 / TCH REQ FULL PREFERRED. . . . . . . . . . . . . . . . . . . . . . . 1033.106 001105 / TCH REQ HALF PREFERRED . . . . . . . . . . . . . . . . . . . . . . 1043.107 001106 / SUCC FULL TCH SEIZ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1053.108 001107 / SUCC HALF TCH SEIZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1063.109 001108 / FULL TCH SEIZ SPEECH VER 1. . . . . . . . . . . . . . . . . . . . . 1063.110 001109 / FULL TCH SEIZ SPEECH VER 2. . . . . . . . . . . . . . . . . . . . . 1073.111 001110 / FULL TCH SEIZ SPEECH VER 3. . . . . . . . . . . . . . . . . . . . . 1083.112 001111 / HALF TCH SEIZ SPEECH VER 1 . . . . . . . . . . . . . . . . . . . . 1103.113 001112 / HALF TCH SEIZ SPEECH VER 2 . . . . . . . . . . . . . . . . . . . . 1113.114 001113 / HALF TCH SEIZ SPEECH VER 3 . . . . . . . . . . . . . . . . . . . . 1113.115 001114 / FULL TCH SEIZ NORM ASSIGNMENT. . . . . . . . . . . . . . . . 1123.116 001115 / HALF TCH SEIZ NORM ASSIGNMENT. . . . . . . . . . . . . . . . 1133.117 001116 / FULL TCH SEIZ INT HO CH RATE . . . . . . . . . . . . . . . . . . . 1143.118 001117 / HALF TCH SEIZ INT HO CH RATE . . . . . . . . . . . . . . . . . . . 1153.119 001118 / REJ TCH REQ DUE LACK FR . . . . . . . . . . . . . . . . . . . . . . . 1153.120 001119 / REJ TCH REQ DUE LACK HR. . . . . . . . . . . . . . . . . . . . . . . 1163.121 001120 / FULL TCH REJ DUE HR TRAF . . . . . . . . . . . . . . . . . . . . . . 1173.122 001121 / HALF TCH REJ DUE FR TRAF . . . . . . . . . . . . . . . . . . . . . . 1183.123 001122 / TCH REJ DUE REQ CH A IF CRC. . . . . . . . . . . . . . . . . . . . 1193.124 001123 / FULL TCH REQ FACCH CALL. . . . . . . . . . . . . . . . . . . . . . . 1203.125 001124 / TCH FACCH CALL CH RATE NOT DEF . . . . . . . . . . . . . . . 1213.126 001125 / SUCC FULL TCH SEIZ FACCH CALL . . . . . . . . . . . . . . . . . 1223.127 001126 / SUCC HALF TCH SEIZ FACCH CALL. . . . . . . . . . . . . . . . . 1223.128 001127 / ENDED DUE TRANSC FR RATE 1 . . . . . . . . . . . . . . . . . . . 1233.129 001128 / ENDED DUE TRANSC FR RATE 2 . . . . . . . . . . . . . . . . . . . 1233.130 001129 / ENDED DUE TRANSC FR RATE 3 . . . . . . . . . . . . . . . . . . . 1243.131 001130 / ENDED DUE TRANSC HR RATE 1 . . . . . . . . . . . . . . . . . . . 125
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3.132 001131 / ENDED DUE TRANSC HR RATE 2 . . . . . . . . . . . . . . . . . . . 1253.133 001132 / ENDED DUE TRANSC HR RATE 3 . . . . . . . . . . . . . . . . . . . 1263.134 001133 / FULL TCH TR FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1273.135 001134 / HALF TCH TR FAIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1283.136 001135 / SDCCH SEIZ ATT FOR MOC . . . . . . . . . . . . . . . . . . . . . . . . 1283.137 001136 / SDCCH SEIZ ATT FOR MTC . . . . . . . . . . . . . . . . . . . . . . . . 1293.138 001137 / TCH SEIZ ATT FOR MOC. . . . . . . . . . . . . . . . . . . . . . . . . . . 1303.139 001138 / TCH SEIZ ATT FOR MTC . . . . . . . . . . . . . . . . . . . . . . . . . . . 1313.140 001139 / TCH REL BECAUSE OF RADIO FAIL . . . . . . . . . . . . . . . . . 1333.141 001140 / TCH REL DUE TO BSS FAIL . . . . . . . . . . . . . . . . . . . . . . . . 1333.142 001141 / TCH SEIZ FAILS DUE TO CONG . . . . . . . . . . . . . . . . . . . . . 1343.143 001142 / QUEUED URGENT HANDOVER ATTEMPTS . . . . . . . . . . . 1353.144 001143 / AVE QUE TIME OF URGENT HO ATTEMPTS. . . . . . . . . . . 1363.145 001144 / QUE DENOMINATOR 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1363.146 001145 / AVE QUE TIME OF NON URGENT HO ATTEMPTS . . . . . . 1373.147 001146 / QUE DENOMINATOR 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1383.148 001147 / QUEUED URG HO ATTS NOT SERVED . . . . . . . . . . . . . . . 1383.149 001148 / MS SUCC TCH SEIZURE FOR ASSIGNMENT COMPLETE 1393.150 001149 / CALLS ENDED BY USER DURING DADL/B SETUP . . . . . . 1403.151 001150 / SUCC TCH SEIZ WHEN GOOD QUAL IN ADJACENTS . . . 1403.152 001151 / TCH REQ REJ DUE TO BAD QUALITY IN ADJACENT . . . . 1413.153 001152 / SUCC TCH SEIZ WHEN QUAL BETW GOOD AND BAD IN AD-
JACENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1413.154 001153 / TCH REQ REJ WHEN QUAL BETW GOOD AND BAD IN ADJA-
CENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1423.155 001154 / DYNAMIC SDCCH RECONFIGURATION ATTEMPT. . . . . . 1423.156 001155 / UNSUCC IMM ASS SDCCH ATTEMPT . . . . . . . . . . . . . . . . 1433.157 001156 / HSCSD TCH REQ WITH 14,4 . . . . . . . . . . . . . . . . . . . . . . . . 1443.158 001157 / HSCSD SUCC TCH SEIZ WITH 14,4 . . . . . . . . . . . . . . . . . . 1453.159 001158 / HSCSD TRANSP TCH REQ . . . . . . . . . . . . . . . . . . . . . . . . . 1453.160 001159 / HSCSD SUCC TRANSP TCH SEIZ . . . . . . . . . . . . . . . . . . . 1463.161 001160 / HSCSD REQ FOR CALL SETUP . . . . . . . . . . . . . . . . . . . . . 1473.162 001161 / HSCSD TCH REQ FOR HO . . . . . . . . . . . . . . . . . . . . . . . . . 1473.163 001162 / HSCSD SUCC TCH SEIZ FOR CALL SETUP . . . . . . . . . . . 1483.164 001163 / HSCSD SUCC TCH SEIZ FOR HO. . . . . . . . . . . . . . . . . . . . 1483.165 001164 / HSCSD CON REL DUE TO FAIL . . . . . . . . . . . . . . . . . . . . . 1493.166 001165 / SUCCESS TCH SEIZURE FOR DIRECT ACCESS . . . . . . . 1503.167 001166 / TCH REQUEST FOR DIRECT ACCESS REJECTED DUE TO
LACK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1503.168 001167 / TCH REQUEST FOR A BSC CONTROLLED TRHO PROCE-
DURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1513.169 001168 / SUCC TCH SEIZ FOR A BSC CONTROLLED TRHO . . . . . 1523.170 001169 / REJ TCH SEIZ FOR A BSC CONTROLLED TRHO DUE LACK
OF RESOURCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1523.171 001170 / SUCCESSFUL TCH SEIZURES FOR DADLB HO . . . . . . . . 1533.172 001171 / TCH REQUEST IN DADLB HO REJECTED . . . . . . . . . . . . . 1533.173 001172 / DADLB START DUE TO EXCEEDED LOAD . . . . . . . . . . . . 1543.174 001173 / REMOVAL FROM QUE DUE TO DR . . . . . . . . . . . . . . . . . . 155
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3.175 001174 / GPRS TER UPGRD REQ. . . . . . . . . . . . . . . . . . . . . . . . . . . 1553.176 001175 / INCOMPL SERV GPRS TER UPGR REQ . . . . . . . . . . . . . . 1563.177 001176 / GPRS TER UG REJ DUE CSW TR . . . . . . . . . . . . . . . . . . . 1573.178 001177 / GPRS TER UG REJ DUE LACK PSW RES. . . . . . . . . . . . . 1573.179 001178 / GPRS TER UG REJ DUE LACK PCU CAP . . . . . . . . . . . . . 1583.180 001179 / GPRS TER DG DUE INC IN CSW TR . . . . . . . . . . . . . . . . . 1593.181 001180 / GPRS TER UG DUE DEC CSW TR. . . . . . . . . . . . . . . . . . . 1593.182 001181 / GPRS TER DOWNGRADE REQ . . . . . . . . . . . . . . . . . . . . . 1603.183 001182 / FULL TCH SEIZ INTRA AMR HO. . . . . . . . . . . . . . . . . . . . . 1603.184 001183 / HALF TCH SEIZ INTRA AMR HO . . . . . . . . . . . . . . . . . . . . 1613.185 001184 / TCH CALL REQ FOR AMR . . . . . . . . . . . . . . . . . . . . . . . . . 1623.186 001185 / SUCCESSFUL AMR CODEC SET DOWNGRADES . . . . . . 1623.187 001186 / UNSUCCESSFUL AMR CODEC SET DOWNGRADES . . . 1633.188 001187 / SUCCESSFUL AMR CODEC SET UPGRADES . . . . . . . . . 1633.189 001188 / UNSUCCESSFUL AMR CODEC SET UPGRADES . . . . . . 1643.190 001189 / TCH REQ FOR 96 DAT CALL . . . . . . . . . . . . . . . . . . . . . . . 1653.191 001190 / SUCC TCH SEIZ FOR 96 DAT CALL. . . . . . . . . . . . . . . . . . 1653.192 001191 / SDCCH DROP CALL AND HO. . . . . . . . . . . . . . . . . . . . . . . 1663.193 001192 / TCH REQUESTS FOR CALL ATTEMPT . . . . . . . . . . . . . . . 1663.194 001193 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT . . . 1673.195 001194 / TCH ACCESS REJECTED DUE LOW RX. . . . . . . . . . . . . . 1673.196 001195 / MSC O HO CMD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1683.197 001196 / BSC O HO CMD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1683.198 001197 / BTS HO ASSGN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1693.199 001198 / TCH REL DUE TO RADIO FAIL PH 9-11. . . . . . . . . . . . . . . 1693.200 001199 / TCH REL DUE TO BSS FAIL PH 2-3 . . . . . . . . . . . . . . . . . . 1703.201 001200 / TCH REL DUE TO BSS FAIL PH 9-11 . . . . . . . . . . . . . . . . . 1703.202 001201 / SDCCH FAIL PH 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1713.203 001202 / DROP AFTER TCH ASSIGN . . . . . . . . . . . . . . . . . . . . . . . . 1713.204 001203 / ERROR IND DURING LU. . . . . . . . . . . . . . . . . . . . . . . . . . . 1723.205 001204 / DROP TCH ASSCOMPL TO RFCH REL . . . . . . . . . . . . . . . 1723.206 001205 / TCH REL DUE RAD FAIL PH 2-3. . . . . . . . . . . . . . . . . . . . . 1743.207 001206 / TCH REL DUE RAD FAIL PH 12-14. . . . . . . . . . . . . . . . . . . 1743.208 001207 / TCH REL DUE BSS FAIL PH 12-14 . . . . . . . . . . . . . . . . . . . 1753.209 001208 / A IF CRC MISMATCH CALL SETUP . . . . . . . . . . . . . . . . . . 1753.210 001209 / GPRS TER DG REJ DUE STREAMING . . . . . . . . . . . . . . . 1763.211 001210 / GPRS TER DG REQ WHEN EQOS ON. . . . . . . . . . . . . . . . 1763.212 001211 / TCH REL BSC BSC CONFLICT CALL. . . . . . . . . . . . . . . . . 1773.213 001212 / TCH REL BSC BSC CONFLICT TARG . . . . . . . . . . . . . . . . 1773.214 001213 / GPRS TER UG REQ FROM CSW . . . . . . . . . . . . . . . . . . . . 1783.215 001214 / GPRS TER UG FROM CSW PARTIAL . . . . . . . . . . . . . . . . 1793.216 001215 / GPRS TER UG FROM CSW FAILED. . . . . . . . . . . . . . . . . . 1793.217 001216 / TCH REQ REJ DUE TO LACK OF RES PER BCSU . . . . . . 1803.218 001217 / INTERNAL TO EXTERNAL HO . . . . . . . . . . . . . . . . . . . . . . 1813.219 001218 / NOT CHANGED INTERNAL HO . . . . . . . . . . . . . . . . . . . . . 1813.220 001219 / IURG RELOCATION RESOURCE REQUEST. . . . . . . . . . . 182
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3.221 001220 / IURG RELOCATION RESOURCE ALLOCATION SUCCESSFUL182
3.222 001221 / TCH TR FAILURE FOR IURG HO WITHOUT A INTERFACE . .183
3.223 001222 / IURG RELOCATION RESOURCE RELEASE. . . . . . . . . . . . 1833.224 001223 / SPARE001223. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1843.225 001224 / SPARE001224. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1843.226 001225 / SUCCESSFUL SDCCH ESTABLISHMENT LU EXCLUDED 1853.227 001226 / SDCCH DROP LU EXCLUDED. . . . . . . . . . . . . . . . . . . . . . . 1853.228 001227 / SUCCESSFUL SDCCH LU ESTABLISHMENT . . . . . . . . . . 1863.229 001228 / SDCCH LU DROP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1863.230 001229 / TCH ASSIGMENT FAILURE MS RETURN SDCCH . . . . . . . 1873.231 001230 / SDCCH DROP OTHER REASON . . . . . . . . . . . . . . . . . . . . . 1873.232 001231 / SDCCH LU ATTEMPTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1883.233 001232 / SDCCH LU ATTEMPTS FAIL . . . . . . . . . . . . . . . . . . . . . . . . 1883.234 001233 / DROPS AFTER DTM CS TCH ASSIGNMENT . . . . . . . . . . . 1893.235 001234 / DTM CS TCH DROPS BETWEEN ASSCOMPL AND RFCH REL
ACK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1903.236 001235 / FORCED RELEASE AFTER FORCED HO. . . . . . . . . . . . . . 1903.237 001236 / CLASS 2 SUBSCRIBER FORCED RELEASE . . . . . . . . . . . 1913.238 001237 / TCH REQUESTS FOR CALL ATTEMPT CLASS 1. . . . . . . . 1913.239 001238 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 1
1923.240 001239 / TCH REQUESTS FOR CALL ATTEMPT CLASS 2. . . . . . . . 1923.241 001240 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 2
1933.242 001241 / TCH REQUESTS FOR CALL ATTEMPT CLASS 3. . . . . . . . 1943.243 001242 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 3
1943.244 001243 / DR TRAU DOWNGRADE ATTEMPTED IN AMR HO . . . . . . 1953.245 001244 / DR TRAU DOWNGRADE ATTEMPT FAILED . . . . . . . . . . . 1953.246 001245 / DR TRAU UPGRADE ATTEMPTED IN AMR HO . . . . . . . . . 1963.247 001246 / DR TRAU UPGRADE ATTEMPT FAILED. . . . . . . . . . . . . . . 1963.248 001247 / SEIZURE IN AMR FR TO HR HO . . . . . . . . . . . . . . . . . . . . . 1973.249 001248 / SEIZURE IN AMR HR TO FR HO . . . . . . . . . . . . . . . . . . . . . 1973.250 001249 / INTERNAL AMR HO TO EXTERNAL . . . . . . . . . . . . . . . . . . 1983.251 001250 / SUCCESSFUL LRTCH SEIZURES. . . . . . . . . . . . . . . . . . . . 1983.252 001251 / TIME OF WB-AMR CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . 1993.253 001252 / TCH REQUESTS FOR WB-AMR . . . . . . . . . . . . . . . . . . . . . 2003.254 001253 / TCH SEIZURES FOR WB-AMR . . . . . . . . . . . . . . . . . . . . . . 2003.255 001254 / TCH ENDED DUE TRANSCODER FAILURE CODEC 5 . . . 2013.256 001255 / CODEC TYPE CHANGE FROM AMR TO WB-AMR SUCCESS-
FUL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2023.257 001256 / CODEC TYPE CHANGE FROM WB-AMR TO AMR SUCCESS-
FUL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2023.258 001257 / GPRS TERRITORY UPGRADE REQUEST DUE DLDC . . . 2033.259 001258 / GPRS TERRITORY UPGRADE DUE DLDC REJECT . . . . . 2033.260 001259 / TCH REQUEST WITHIN DL RX LEVEL WINDOW. . . . . . . . 204
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3.261 001260 / TCH SEIZURE IN BCCH DUE TO DL RX LEVEL . . . . . . . . 2043.262 001261 / TCH REQUEST OUT OF DL RX LEVEL WINDOW . . . . . . . 2053.263 001262 / TCH SEIZURE IN NON-BCCH DUE TO DL RX LEVEL. . . . 2063.264 001263 / DHR MULTIPLEXING ATTEMPTS. . . . . . . . . . . . . . . . . . . . 2063.265 001264 / DHR MULTIPLEXING FAILURE DUE TO TCH RESOURCE 2073.266 001265 / CSDAP RESOURCE ALLOCATION ATTEMPTS FOR DHR 2073.267 001266 / DHR MULTIPLEXING FAILURE DUE TO CSDAP RESOURCE
2083.268 001267 / DHR MULTIPLEXING FAILURE DUE TO OTHER REASON 2083.269 001268 / TCH REQ REJ DUE ABIS CONG . . . . . . . . . . . . . . . . . . . . 2093.270 001269 / CALL SETUP REJ DUE ABIS CONG. . . . . . . . . . . . . . . . . . 2103.271 001270 / GPRS TERR UG REJ DUE ABIS. . . . . . . . . . . . . . . . . . . . . 2103.272 001271 / SPARE001271 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2113.273 001272 / TCH REQUEST REJECT DUE TO ETP OVERLOAD . . . . . 2113.274 001273 / CALL SETUP REJECT DUE TO ETP OVERLOAD . . . . . . . 2123.275 001274 / MO LS CALL SUCCESSFUL . . . . . . . . . . . . . . . . . . . . . . . . 2123.276 001275 / MT LS CALL SUCCESSFUL . . . . . . . . . . . . . . . . . . . . . . . . 2133.277 001276 / LS ESTABLISHMENT UNSUCCESSFUL DUE TO CODEC 2143.278 001277 / LS RELEASE DUE TO INTER HO OUTSIDE LS AREA . . . 2143.279 001278 / LS RELEASE DUE TO EXTERNAL HO. . . . . . . . . . . . . . . . 2153.280 001279 / LS RELEASE DUE TO SUPPLEM SERVICE ESTABLISHMENT
2153.281 001280 / SPARE001280 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2163.282 001281 / SPARE001281 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2163.283 001282 / SPARE001282 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2173.284 001283 / SPARE001283 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2173.285 001284 / SPARE001284 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2173.286 001285 / SPARE001285 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2183.287 001286 / SPARE001286 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2183.288 001287 / SPARE001287 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2193.289 001288 / DFR MULTIPLEXING ATTEMPTS IN 8K TRAU MODE . . . 2193.290 001289 / TRAU DOWNGRADE ATTEMPTED IN DFR MULTIPLEXING .
2203.291 001290 / TRAU DOWNGRADE FAILED IN DFR MULTIPLEXING. . . 2203.292 001291 / TRAU UPGRADE ATTEMPTED IN DFR DEMULTIPLEXING . .
2213.293 001292 / TRAU UPGRADE FAILED IN DFR DEMULTIPLEXING . . . 2223.294 001293 / DFR MULTIPLEXING ATTEMPTS. . . . . . . . . . . . . . . . . . . . 2223.295 001294 / DFR MULTIPLEXING FAILURE DUE TO TCH RESOURCE 2233.296 001295 / CSDAP RESOURCE ALLOCATION ATTEMPTS FOR DFR 2233.297 001296 / DFR MULTIPLEXING FAILURE DUE TO CSDAP RESOURCE
2243.298 001297 / DFR MULTIPLEXING FAILURE DUE TO OTHER REASON 2243.299 001298 / TCH REQUEST REJECTED DUE TO TX POWER . . . . . . . 2253.300 001299 / POWER BALANCING HANDOVER REQUESTED . . . . . . . 2263.301 001300 / POWER BALANCING HO REQUEST REJECTED . . . . . . . 2263.302 001301 / GPRS TER UG REJ DUE LACK TX POWER . . . . . . . . . . . 227
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4 Signalling charts of Traffic Measurement . . . . . . . . . . . . . . . . . . . . . . . 228
5 Signalling charts of Dual Transfer Mode. . . . . . . . . . . . . . . . . . . . . . . . 310
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List of figuresFigure 1 Basic call without counters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228Figure 2 Basic call with counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229Figure 3 Basic call with priority subscriber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230Figure 4 FACCH call setup due to SDCCH congestion without counters . . . . . 231Figure 5 FACCH call setup due to SDCCH congestion with counters . . . . . . . . 232Figure 6 FACCH call setup due to SDCCH congestion, no free TCH channel. Op-
tional software directed retry is not activated. . . . . . . . . . . . . . . . . . . . 233Figure 7 Normal release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234Figure 8 Basic call, no free TCH and queuing or directed retry is not allowed . 235Figure 9 Successful TCH queuing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236Figure 10 Basic call, no free TCHs, unsuccessful queuing and directed retry not acti-
vated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237Figure 11 TCH assignment failure due to MSC's inability to switch circuit pool. . 238Figure 12 Unsuccessful TCH activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239Figure 13 Unsuccessful TCH activation, timer expires while waiting for
CHANNEL_ACTIVATION_ACK message . . . . . . . . . . . . . . . . . . . . . . 240Figure 14 TCH assignment failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241Figure 15 TCH assignment failure, MSC sends CLEAR_COMMAND message . 242Figure 16 CONNECTION_FAILURE message with cause transcoder_failure during a
call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243Figure 17 TRX or TSL is blocked with different causes during a call. . . . . . . . . . 244Figure 18 SDCCH congestion, FACCH call setup is not activated . . . . . . . . . . . 245Figure 19 Unsuccessful SDCCH activation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246Figure 20 Unsuccessful SDCCH activation, timer expires while waiting for
CHANNEL_ACTIVATION_ACK message . . . . . . . . . . . . . . . . . . . . . . 247Figure 21 Connection failure during SDCCH assignment . . . . . . . . . . . . . . . . . . 248Figure 22 SDCCH assignment failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249Figure 23 Unsuccessful SDCCH activation, timer expires while waiting for
PHYSICAL_CONTEXT_CONFIRM message . . . . . . . . . . . . . . . . . . . 250Figure 24 TRX/TSL is blocked with different causes during an SDCCH channel acti-
vation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251Figure 25 Successful trunk reservation. Counters updated: 001040, 001041 and ba-
sic call counters, see Figure 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252Figure 26 Unsuccessful trunk reservation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253Figure 27 Successful internal intra-cell handover. Counters 001090 and 001091 are
updated only with underlay overlay handover.. . . . . . . . . . . . . . . . . . . 254Figure 28 Internal intra-cell handover, successful TCH queuing . . . . . . . . . . . . . 255Figure 29 Unsuccessful internal intra-cell handover, timer expires while waiting for
CHANNEL_ACTIVATION_ACK message . . . . . . . . . . . . . . . . . . . . . . 256Figure 30 Unsuccessful internal intra-cell handover, CONNECTION_FAILURE mes-
sage with cause remote_transcoder_failure comes to the target channel. 257
Figure 31 Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
Figure 32 Unsuccessful underlay overlay internal intra-cell handover, queuing not al-lowed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Figure 33 Internal intra-cell handover, unsuccessful TCH queuing . . . . . . . . . . . 260
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Figure 34 Internal directed retry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261Figure 35 Successful internal inter-cell handover . . . . . . . . . . . . . . . . . . . . . . . . . 262Figure 36 Unsuccessful internal inter-cell handover . . . . . . . . . . . . . . . . . . . . . . . 263Figure 37 Successful external handover, target . . . . . . . . . . . . . . . . . . . . . . . . . . 264Figure 38 Successful external handover, source . . . . . . . . . . . . . . . . . . . . . . . . . 265Figure 39 Unsuccessful external handover, source BSC, timer expires while waiting
for CLEAR_COMMAND message . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266Figure 40 Unsuccessful external handover, MS sends a handover failure . . . . . . 267Figure 41 Successful traffic reason handover, source . . . . . . . . . . . . . . . . . . . . . 268Figure 42 Successful SDCCH internal intra-cell handover . . . . . . . . . . . . . . . . . . 269Figure 43 Unsuccessful SDCCH internal intra-cell handover, timer expires while wait-
ing for CHANNEL_ACTIVATION_ACK message . . . . . . . . . . . . . . . . . 270Figure 44 Unsuccessful SDCCH internal intra-cell handover, unsuccessful channel
activation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271Figure 45 Unsuccessful SDCCH internal intra-cell handover,
CONNECTION_FAILURE message comes to the target channel during handover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Figure 46 Successful SDCCH internal inter-cell handover . . . . . . . . . . . . . . . . . . 273Figure 47 Unsuccessful SDCCH internal inter-cell handover, BTS sends
CONNECTION_FAILURE message . . . . . . . . . . . . . . . . . . . . . . . . . . . 274Figure 48 Successful SDCCH external handover target. . . . . . . . . . . . . . . . . . . . 274Figure 49 Successful SDCCH external handover source. No counters updating. 275Figure 50 Unsuccessful SDCCH external handover, timer expires while waiting for
CLEAR_COMMAND message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276Figure 51 Successful forced release. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277Figure 52 Unsuccessful forced release. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278Figure 53 Unsuccessful forced release with external handover . . . . . . . . . . . . . . 279Figure 54 Successful forced handover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280Figure 55 Unsuccessful forced handover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281Figure 56 Unsuccessful forced handover with external handover . . . . . . . . . . . . 282Figure 57 Reconfiguration from TCH to SDCCH . . . . . . . . . . . . . . . . . . . . . . . . . 283Figure 58 Normal call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283Figure 59 Mobile originated HSCSD call setup. . . . . . . . . . . . . . . . . . . . . . . . . . . 284Figure 60 Successful internal inter-cell handover for HSCSD, target cell allocations
and activations for three channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285Figure 61 A CONNECTION_FAILURE message which comes during an HSCSD . .
286Figure 62 Internal intra-cell direct access from a regular DCCH to the super-reuse
TRX. Optional software direct access to super-reuse TRX in IUO activated.287
Figure 63 Unsuccessful internal intra-cell direct access from regular DCCH to the su-per-reuse TRX due to lack of resources. Optional software direct access to super-reuse TRX in IUO activated. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Figure 64 Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE mes-sage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Figure 65 Average counter updating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290Figure 66 Successful handover due to DADL/B . . . . . . . . . . . . . . . . . . . . . . . . . . 290Figure 67 Unsuccessful DADL/B handover due to lack of resources . . . . . . . . . . 291Figure 68 Successful BSC controlled TRHO . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
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Figure 69 Unsuccessful BSC controlled TRHO . . . . . . . . . . . . . . . . . . . . . . . . . . 292Figure 70 Dropped call between ASSIGNMENT COMPLETE and DISCONNECT. .
293Figure 71 Dropped call between ASSIGNMENT COMPLETE and RF CHANNEL RE-
LEASE ACK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294Figure 72 Circuit pool switching during call setup, chart 1/2 . . . . . . . . . . . . . . . . 295Figure 73 Circuit pool switching during call setup, chart 2/2 . . . . . . . . . . . . . . . . 296Figure 74 AMR packing or unpacking handover . . . . . . . . . . . . . . . . . . . . . . . . . 297Figure 75 Successful handover type reselection from an internal inter-cell TCH to
TCH handover to an external handover due to switching the circuit pool . 298
Figure 76 Internal inter-cell handover change to external handover due to circuit pool switching, target-cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Figure 77 Internal intra-cell handover change to external due to circuit pool switching, source side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Figure 78 Internal intra-cell handover change to external due to circuit pool switching, target side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301
Figure 79 Circuit pool switch during inter-system handover, target-BSC. . . . . . . 302Figure 80 Circuit pool switch during external handover, target-BSC . . . . . . . . . . 303Figure 81 BSS Internal Handover with MSC Support - Local Handover . . . . . . . 304Figure 82 BSS Internal Handover with MSC Support - Distant Handover . . . . . . 305Figure 83 Intra BSC HO; interface type change from AoIP to AoTDM; TC in MGW .
306Figure 84 TCH Drop Counters 1/3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307Figure 85 TCH Drop Counters 2/3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308Figure 86 TCH Drop Counters 3/3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309Figure 87 MO DTM call establishment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310Figure 88 MT DTM call establishment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311Figure 89 DTM call reallocation; too high CS connection interference . . . . . . . . 312Figure 90 DTM call reallocation; inadequate PS connection quality . . . . . . . . . . 313Figure 91 DTM call; internal inter-cell handover; CS connection power budget . 314Figure 92 DTM call; internal inter-cell handover; lack of resources in the PS territory
315Figure 93 DTM call; external handover, source BSC. . . . . . . . . . . . . . . . . . . . . . 316Figure 94 DTM call; external handover, target BSC . . . . . . . . . . . . . . . . . . . . . . 317Figure 95 DTM call release initiated by the MS . . . . . . . . . . . . . . . . . . . . . . . . . . 318Figure 96 DTM call release; packet data transfer end . . . . . . . . . . . . . . . . . . . . . 319Figure 97 DTM REQUEST rejected when IMSI data not available . . . . . . . . . . . 320Figure 98 Unsuccessful MO DTM; activation of a CS TCH in the PS territory fails, tim-
er expires while waiting for CHANNEL ACTIVATION ACK . . . . . . . . . 321Figure 99 Unsuccessful MT DTM; activation of a CS TCH in the PS territory fails, tim-
er expires while waiting for CHANNEL ACTIVATION ACK . . . . . . . . . 322Figure 100 Unsuccessful MT DTM; DTM ASSIGNMENT FAILURE received . . . . 323Figure 101 Timer T3107 expires while waiting for ASSIGNMENT COMPLETE . . 324Figure 102 DTM call reallocation failure; DTM ASSIGNMENT FAILURE received 325Figure 103 DTM CS connection drops after ASSIGNMENT COMPLETE; CONNEC-
TION FAILURE received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326Figure 104 DTM CS connection drops after ASSIGNMENT COMPLETE; RELEASE
INDICATION not received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
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Figure 105 Unsuccessful DTM call reallocation; timer T3107 expires while waiting for ASSIGNMENT COMPLETE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
Figure 106 DTM TBF assignment failure; UL RLC block not received . . . . . . . . . . 329Figure 107 DTM-capable MS paging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
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List of tablesTable 1 Measurement description of Traffic Measurement . . . . . . . . . . . . . . . . 19Table 2 SDCCH attempts counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Table 3 SDCCH success counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Table 4 SDCCH failure counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Table 5 TCH requests and attempts counters . . . . . . . . . . . . . . . . . . . . . . . . . . 20Table 6 TCH success counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Table 7 TCH failure counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Table 8 Other counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Table 9 GPRS counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Table 10 Spare counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
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1 Summary of changesChanges between document issues are cumulative. Therefore, the latest document issue contains all changes made to previous issues.
Changes made between issues 13-5 and 13-4Three new signalling charts are added in section Signalling charts of Traffic Measure-ment: Figures 84-86.
In the section Signalling charts of Traffic Measurement, Figures 81-83 have been mod-ified.
New counters 001298, 001299, 001300 and 001301 related to feature BSS21507: Flexible MCPA TX Power Pooling have been added.
Spare counters 001191 and 001230 have been made official.
Changes made between issues 13-4 and 13-3The Description field has been modified for the counters 001226 and 001228.
Spare counters 001191 and 001230 are taken into use related to RG301618: SDCCH Drop Counters due to Clear Request.
Changes made between issues 13-3 and 13-2The counter 001112 has been changed to not in use.
The Unit field for the counter 001251 has been updated.
Spare counters 001225, 001226, 001227, 001228 and 001229 have been made official.
Changes made between issues 13-2 and 13-1The Description and Updated fields are modified for the counters 001274, 001275, 001276, 001277, 001278 and 001279 related to BSS21327: Local Switching for Packet Abis.
New counters 001288, 001289, 001290, 001291 and 001292 related to BSS21325: 8K TRAU for OSC AMR FR have been added.
New counters 001293, 001294, 001295, 001296 and 001297 related to BSS21534: OSC Full Rate with SAIC MS have been added.
The Description and Updated fields are modified for the counters 001038, 001049, and 001216 related to feature BSS21530 mcBSC.
The Updated field is modified for the counter 001155 related to feature BSS21530 mcBSC.
Changes made between issues 13-1 and 13-0The Description field is modified for the counter 001011.
In the section Signalling charts of Traffic Measurement, the counter 001192 is added in Figures 2, 3, 5, 6, 8, 9, 10, 11, 26, 34, 51, 52, 54, 55, 72, 73.
The Description and Updated fields are modified for the counter 001267.
Changes made between issues 13-0 and 12-1New counters 001257 and 001258 related to BSS21343: DLDC Territory Procedures have been added.
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Summary of changes
New counters 001259, 001260, 001261, 001262 related to BSS21222: Energy Opti-mised TCH Allocation have been added.
New counters 001274, 001275, 001276, 001277, 001278 and 001279 related to BSS21327: Local Switching For Packet Abis have been added.
New counters 001268, 001269, 001270, 001272 and 001273 related to BSS21454: Packet Abis over IP/Ethernet, BSS21440: Packet Abis over TDM have been added.
New counters 001263, 001264, 001265, 001266 and 001267 related to BSS21309: OSC Half Rate with SAIC MS have been added.
Spare counters 001219, 001220, 001221 and 001222 have made official due to BSS21528: ISHO acceleration via Iur-g.
Spare counters 001271, 001280, 001281, 001282, 001283, 001284, 001285, 001286 and 001287 are introduced.
Updated, Definition Updated, Domain level features and Related to feature fields are modified for the counters 001174 and 001175 related to BSS21343: DLDC Territory Procedures.
Three new signalling charts are added in section Signalling charts of Traffic Measure-ment: Figures 81-83.
Changes made between issues 12-1 and 12-0The Description and Updated fields are modified for the counters 001018, 001052, 001090, 001091 and 001092.
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2 1 Traffic MeasurementThe BSC traffic measurement registers information related to the stand alone dedicated control channels (SDCCH) and traffic channels (TCH). The BSC traffic measurement counters are divided into different classes. There are counters regarding the number of attempts to seize TCHs and SDCCHs, successful calls, lengths of the queue, the reasons for Failures and GPRS territory counters. This measurement collects one set of results for each BTS. Signalling charts are drawn with the accuracy of message inter-face.
Measurement description
Measurement counters
• SDCCH attempts counters
• SDCCH success counters
• SDCCH failure counters
MeasurementMeasurement IDMeasurement abbreviation
Traffic Measurement1TRAFFIC
Product BSC
Product software release S1
Target name BTS + Coverage area
Table 1 Measurement description of Traffic Measurement
Counter Counter number
Seizure attempts 001000
SDCCH seizure attempts for MOC 001135
SDCCH seizure attempts for MTC 001136
Dynamic SDCCH reconfiguration attempt 001154
SDCCH LU attempts 001231
Table 2 SDCCH attempts counters
Counter Counter number
Success seizure for HO 001006
Success seizure for immediate assignment 001007
SUCCESSFUL SDCCH ESTABLISHMENT LU EXCLUDED
001225
SUCCESSFUL SDCCH LU ESTABLISHMENT 001227
Table 3 SDCCH success counters
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• TCH requests and attempts counters
Counter Counter number
Seizure attempts with busy SDCCH 001001
Transactions failed due to BSS failure 001002
Transactions failed due to radio failure 001003
Transact. failed due radio on source channel during HO
001004
Transact. failed due radio on target channel during HO 001005
SDCCH activation failure 001027
SDCCH Abis problems 001033
SDCCH A interface problems 001034
SDCCH LAPD failure 001035
SDCCH BTS failure 001036
SDCCH user actions 001037
SDCCH BCSU reset 001038
SDCCH network actions 001039
SDCCH activation failure call 001072
SDCCH activation failure target 001074
SDCCH Abis failure call 001075
SDCCH Abis failure source 001076
SDCCH Abis failure target 001077
SDCCH A interface failure call 001078
SDCCH A interface failure source 001079
SDCCH A interface failure target 001080
Unsuccess immediate assignment SDCCH attempt 001155
SDCCH failures in phase 3 001201
Error indication messages during Location Update 001203
SDCCH DROP LU EXCLUDED 001226
SDCCH LU DROP 001228
SDCCH LU attempts fail 001232
Table 4 SDCCH failure counters
Counter Counter number
TCH request success and unsuccess 001010
Call attempts in the queue 001016
Handover attempts in the queue 001017
Table 5 TCH requests and attempts counters
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TCH call request 001026
Trunk reservation invocations 001040
TCH requests FACCH call setup 001043
Traffic reason HO requests 001052
Traffic reason HO enquiries 001053
Forced release assign request attempts 001054
Forced HO assign request attempts 001055
Queuing allowed assign request attempts 001056
Queuing not allowed assign request attempts 001057
Forced release HO request attempts 001062
Forced HO HO request attempts 001063
Queuing allowed HO request attempts 001064
Queuing not allowed HO request attempts 001065
TCH requests underlay overlay 001090
TCH seizure underlay overlay 001091
Priority subscriber TCH requests 001095
TCH seizure attempt due SDCCH congestion 001098
Full TCH requests success unsuccess 001102
Half TCH requests success unsuccess 001103
TCH requests full preferred 001104
TCH requests half preferred 001105
Full TCH requests FACCH call 001123
TCH FACCH call channel rate not defined 001124
TCH seizure attempts for MOC 001137
TCH seizure attempts for MTC 001138
Queued urgent handover attempts 001142
TCH requests for 14.4k data calls 001156
HSCSD transparent TCH request 001158
HSCSD request for call setup 001160
HSCSD TCH request for HO 001161
TCH request for a BSC controlled TRHO procedure 001167
DADLB start due to exceeded load 001172
TCH requests for AMR call 001184
TCH requests for 9.6k data calls 001189
TCH requests for call attempt 001192
HO commands in outgoing MSC-controlled handover 001195
Counter Counter number
Table 5 TCH requests and attempts counters (Cont.)
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HO commands in outgoing BSC–controlled handover 001196
Assignment commands in intra-BTS handover 001197
TCH requests for call attempt class 1 001237
TCH requests for call attempt class 2 001239
TCH requests for call attempt class 3 001241
TCH requests for WB-AMR 001252
TCH request within DL RX level window 001259
TCH request out of DL RX level window 001261
Counter Counter number
Table 5 TCH requests and attempts counters (Cont.)
Counter Counter number
Success TCH seizure for HO 001008
Success TCH seizure for normal assignment 001009
Success trunk reservation invocations 001041
TCH seizure FACCH call setup 001044
Forced releases 001070
Forced handovers 001071
Priority subscriber success TCH seizure 001096
TCH seizure due SDCCH congestion 001099
Success full TCH seizure 001106
Success half TCH seizure 001107
Full TCH seizure speech ver 1 001108
Full TCH seizure speech ver 2 001109
Full TCH seizure speech ver 3 001110
Half TCH seizure speech ver 1 001111
Half TCH seizure speech ver 2 001112
Half TCH seizure speech ver 3 001113
Full TCH seizure normal assignment 001114
Half TCH seizure normal assignment 001115
Full TCH seizure internal HO channel rate 001116
Half TCH seizure internal HO channel rate 001117
Success full TCH seizure FACCH call 001125
Success half TCH seizure FACCH call 001126
MS success TCH seizure for assignment complete 001148
Calls ended by user during DADL/B setup 001149
Table 6 TCH success counters
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• TCH failure counters
Success TCH seizure when good quality in adjacents 001150
Succ TCH seiz when qual betw good and bad in adj 001152
HSCSD success TCH seizure with 14.4 001157
HSCSD success transparent TCH seizure 001159
HSCSD success TCH seizure for call setup 001162
HSCSD success TCH seizure for HO 001163
Success TCH seizure for direct access 001165
Succ TCH seiz for a controlled TRHO 001168
Successful TCH seizures for DADLB HO 001170
Removal from queue due to DR 001173
Successful FR TCH seizures with AMR codecs for HO 001182
Successful HR TCH seizures with AMR codecs for HO 001183
Successful TCH seizures for call attempt 001193
Successful TCH seizures for call attempt class1 001238
Successful TCH seizures for call attempt class2 001240
Successful TCH seizures for call attempt class3 001242
Seizure in AMR FR to HR HO 001247
Seizure in AMR HR to FR HO 001248
Successful LRTCH seizures 001250
TCH seizures for WB-AMR 001253
TCH seizure in BCCH due to DL RX level 001260
TCH seizure in non-BCCH due to DL RX level 001262
Counter Counter number
Table 6 TCH success counters (Cont.)
Counter Counter number
TCH request rejected due to lack 001011
Transactions ended due to BSS problem 001012
Transactions ended due to radio failure 001013
Transact. ended due source channel failure during HO 001014
Transact. ended due target channel failure during HO 001015
Not served queued call attempts 001024
Not served queued HO attempts 001025
TCH activation failure 001028
TCH transcoder failure 001029
TCH transcoder failure source 001030
Table 7 TCH failure counters
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TCH transcoder failure target 001031
Trunk reservation invocations result refused 001042
TCH Abis problems 001045
TCH LAPD failure 001046
TCH BTS failure 001047
TCH user actions 001048
TCH BCSU reset 001049
TCH network actions 001050
TCH A interface problems 001051
Forced release assign request failed 001058
Forced HO assign request failed 001059
Queuing allowed assign request failed 001060
Queuing not allowed assign request failed 001061
Forced release HO request failed 001066
Forced HO HO request failed 001067
Queuing allowed HO request failed 001068
Queuing not allowed HO request failed 001069
TCH activation failure call 001081
TCH activation failure target 001083
TCH Abis failure call 001084
TCH Abis failure source 001085
TCH Abis failure new 001086
TCH A interface failure call 001087
TCH A interface failure source 001088
TCH A interface failure new 001089
TCH rejected requests underlay overlay 001092
Non-priority subscriber refused TCH requests 001097
Trunk TCH rejected FR requests 001100
Trunk TCH rejected HR requests 001101
Rejected TCH requests due lack FR 001118
Rejected TCH requests due lack HR 001119
Full TCH rejected requests due HR traffic 001120
Half TCH rejected requests due FR traffic 001121
TCH rejected due requested channel A interface circuit 001122
Ended due transcoder FR rate 1 001127
Ended due transcoder FR rate 2 001128
Counter Counter number
Table 7 TCH failure counters (Cont.)
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Ended due transcoder FR rate 3 001129
Ended due transcoder HR rate 1 001130
Ended due transcoder HR rate 2 001131
Ended due transcoder HR rate 3 001132
Full TCH transaction failures 001133
Half TCH transaction failures 001134
TCH release due to radio failure 001139
TCH release due to BSS failure 001140
TCH seizure failure due to congestion 001141
Queued urgent HO attempts not served 001147
TCH request rejected due to bad quality in adjacents 001151
TCH req rej when qual betw good and bad in adj 001153
HSCSD connection releases due to failure 001164
TCH request for direct access rejected due to lack 001166
Rej TCH seiz for BSC contr TRHO due lack of res 001169
TCH request in DADLB HO rejected 001171
TCH drop due to too low RX level 001194
TCH releases due to radio failures, updated in phases 9-11
001198
TCH releases due to BSS failures, updated in phases 2-3
001199
TCH releases due to BSS failures, updated in phases 9-11
001200
Dropped calls after TCH assignment 001202
Number of TCH drops between Assignment Complete and RF Channel Release messages
001204
Number of TCH releases due to radio failures, updated only in phases 2-3
001205
Number of TCH releases due to radio failures, updated only in phases 12-14
001206
Number of TCH releases due to BSS failures, updated only in phases 12-14
001207
Number of TCH requests rejected due to the mismatch between the types of the requested channel and the A interface circuit, updated only in call setup phase
001208
Number of TCH releases due to BSC-BSC conflict in call setup
001211
Number of TCH releases due to BSC-BSC conflict for target channel
001212
Counter Counter number
Table 7 TCH failure counters (Cont.)
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• Other counters
Number of TCH requests rejected due to lack of resources per BCSU
001216
TCH TR failure for IURG HO without a interface 001221
TCH ASSIGMENT FAILURE MS RETURN SDCCH 001229
Drops after DTM CS TCH assignment 001233
DTM CS TCH drops between ASSCOMPL and RFCH REL ACK
001234
TCH ended due transcoder failure codec 5 001254
TCH request reject due to Abis congestion 001268
Call setup reject due to Abis congestion 001269
TCH request reject due to ETP overload 001272
Call setup reject due todue to ETP overload 001273
TCH REQUEST REJECTED DUE TO TX POWER 001298
Counter Counter number
Table 7 TCH failure counters (Cont.)
Counter Counter number
Average queue length for channel seizure request 001018
Queue denominator 1 001019
Average queue time of call attempts 001020
Queue denominator 2 001021
Average queue time of HO attempts 001022
Queue denominator 3 001023
Not relevant 001032
Not relevant 001073
Not relevant 001082
Successful MOC test call 001093
Unsuccessful MOC test call 001094
Average queuing time of urgent HO attempts 001143
Queue denominator 4 001144
Average queuing time of non-urgent HO attempts 001145
Queue denominator 5 001146
Successful AMR codec set downgrades 001185
Unsuccessful AMR codec set downgrades 001186
Successful AMR codec set upgrades 001187
Unsuccessful AMR codec set upgrades 001188
Table 8 Other counters
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Internal to external HO 001217
Not changed internal HO 001218
IURG relocation resource request 001219
IURG relocation resource allocation successful 001220
IURG relocation resource release 001222
Forced release after forced HO 001235
Class 2 subscriber forced release 001236
DR TRAU downgrade attempted in AMR HO 001243
DR TRAU downgrade attempt failed 001244
DR TRAU upgrade attempted in AMR HO 001245
DR TRAU upgrade attempt failed 001246
Internal AMR HO to external 001249
Time of WB-AMR calls 001251
Codec type change from AMR to WB-AMR successful 001255
Codec type change from WB-AMR to AMR successful 001256
DHR multiplexing attempts 001263
DHR multiplexing failure due to TCH resource 001264
CSDAP resource allocation attempts for DHR 001265
DHR multiplexing failure due to CSDAP resource 001266
DHR multiplexing failure due to other reason 001267
MO LS call successful 001274
MT LS call successful 001275
LS establishment unsuccessful due to CODEC 001276
LS release due to inter handover outside LS area 001277
LS release due to external handover 001278
LS release due to supplementary service establisment 001279
DFR MULTIPLEXING ATTEMPTS IN 8K TRAU MODE
001288
TRAU DOWNGRADE ATTEMPTED IN DFR MULTI-PLEXING
001289
TRAU DOWNGRADE FAILED IN DFR MULTIPLEX-ING
001290
TRAU UPGRADE ATTEMPTED IN DFR DEMULTI-PLEXING
001291
TRAU UPGRADE FAILED IN DFR DEMULTIPLEX-ING
001292
DFR MULTIPLEXING ATTEMPTS 001293
Counter Counter number
Table 8 Other counters (Cont.)
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• GPRS counters
• Spare counters
DFR MULTIPLEXING FAILURE DUE TO TCH RESOURCE
001294
CSDAP RESOURCE ALLOCATION ATTEMPTS FOR DFR
001295
DFR MULTIPLEXING FAILURE DUE TO CSDAP RESOURCE
001296
DFR MULTIPLEXING FAILURE DUE TO OTHER REASON
001297
POWER BALANCING HANDOVER REQUESTED 001299
POWER BALANCING HO REQUEST REJECTED 001300
Counter Counter number
Table 8 Other counters (Cont.)
Counter Counter number
GPRS territory upgrade requests 001174
Incompletely served GPRS territory upgrade requests 001175
GPRS upgrade requests rejected due to CSW traffic 001176
GPRS upgrade requests rejected due to lack of PSW 001177
GPRS upgrade requests rejected due to to lack of PCU
001178
GPRS downgrades due to increase in CSW traffic 001179
GPRS upgrades due to decrease in CSW traffic 001180
GPRS territory downgrade requests 001181
GPRS territory downgrade rejected due to streaming traffic
001209
GPRS territory downgrade rejected due to need of CS resources.
001210
Number of GPRS territory upgrade requestes from CSW
001213
Number of GPRS territory upgrade requests from CSW, partially successful
001214
Number of GPRS territory upgrade requests from CSW, failed
011215
GPRS territory upgrade request due to DLDC 001257
GPRS territory upgrade request due to DLDC reject 001258
GPRS territory upgrade reject due to ABIS 001270
GPRS TER UG REJ DUE LACK TX POWER 001301
Table 9 GPRS counters
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Related topics
• Counters of Traffic Measurement • Signalling charts of Traffic Measurement • Signalling charts of Dual Transfer Mode
Instructions
• BSC Statistics AdministrationFor information on using this measurement to test the activation of related software, see the testing instructions in:
• Activating and Testing BSS6071: EFR • Activating and Testing BSS6115: Half Rate • Activating and Testing BSS7003 and BSS7037: HSCSD and 14.4 kbit/s Data
Services • Activating and Testing BSS7036: Dynamic SDCCH • Activating and Testing BSS9006: GPRS • Activating and Testing BSS10004: AMR • Activating and Testing BSC3910: Pre-emption and BSS20869: Market Expansion
Toolkit • Activating and Testing BSS21274: Long Reach TSL (2G BTS) • Activating and Testing BSS20960: Wideband AMR
Reference
• BSC Measurement Counters Displaying Program (FOXMEA) • Performance Measurements
Descriptions
• Advanced Multilayer Handling • Direct Access to Desired Layer/Band
Counter Counter number
Spare001191 001191
Spare001223 001223
Spare001224 001224
Spare001230 001230
Spare001271 001271
Spare001280 001280
Spare001281 001281
Spare001282 001282
Spare001283 001283
Spare001284 001284
Spare001285 001285
Spare001286 001286
Spare001287 001287
Table 10 Spare counters
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• Directed Retry in BSC • Dual Transfer Mode in BSC • Dynamic Abis • Dynamic Frequency and Channel Allocation in BSC • Dynamic SDCCH in Radio Channel Allocation • GPRS/EDGE System Feature Description • Enhanced Coverage by Frequency Hopping • Enhanced Speech Codecs: AMR and EFR • Extended Cell Range • FACCH Call Set-up • Half Rate in BSC • Handover Support for Coverage Enhancements • HSCSD and 14.4 kbit/s Data Services in BSC • Intelligent Underlay-Overlay • Multi BCF Control in BSC • Radio Resource Pre-emption and Queuing in BSC • Traffic Reason Handover in BSC • BSS20960: Wideband AMR • BSS21343: DLDC Territory Procedures • BSS21222: Energy Optimised TCH Allocation • BSS21454: Packet Abis over IP/Ethernet • BSS21440: Packet Abis over TDM • BSS21528: ISHO acceleration via Iur-g • BSS21309: OSC Half Rate with SAIC MS • BSS21325: 8K TRAU FOR OSC AMR FR • BSS21327: Local Switching for Packet Abis • BSS21534: OSC Full Rate with SAIC MS
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3 Counters of Traffic Measurement
3.1 001000 / SEIZURE ATTEMPTS
3.2 001001 / SEIZURE ATTEMPTS WITH BUSY SDCCH
Counter ID: 001000 Network element name: SEIZURE ATTEMPTS
Version: 4.0 NetAct name: SDCCH_SEIZ_ATT
Description: Number of times when an MS attempts to seize an SDCCH.
Updated: When the RRM receives requests for SDCCH from an MS as the MS needs a channel for either a call or a HO.
See figures: - Basic call with counters- FACCH call setup due to SDCCH congestion with counters - FACCH call setup due to SDCCH congestion, no free TCH channel - SDCCH congestion, FACCH call setup is not activated - Successful SDCCH internal intra-cell handover - Successful SDCCH internal inter-cell handover - Successful SDCCH external handover target - Reconfiguration from TCH to SDCCH
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
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Used from release: S1 Definition updated in release:
Counter ID: 001001 Network element name: SEIZURE ATTEMPTS WITH BUSY SDCCH
Version: 4.0 NetAct name: SDCCH_BUSY_ATT
Description: Number of times when an MS attempts to seize an SDCCH but the attempt is unsuccessful because all SDCCHs are busy. This counter does not neces-sarily mean that the call attempt is lost, because the call may be established as an FACCH call setup using TCH instead of SDCCH. This counter is not triggered when the TCH reconfiguration is attempted because of dynamic SDCCH allocation. If the attempt fails, the SDCCH_busy_attempt is triggered together with 1155 UNSUCC_IMM_ASS_SDCCH_ATTEMPT.
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Counters of Traffic Measurement
3.3 001002 / TRANSACTIONS FAIL DUE TO BSS FAIL
Updated: When the RRM has no SDCCHs to allocate for a call or HO attempts.
See figures: - FACCH call setup due to SDCCH congestion with counters - FACCH call setup because of SDCCH congestion - SDCCH congestion, FACCH call setup is not activated
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20003: CS Statistics Enhancements
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Exceptions to related standard:
Used from release: S1 Definition updated in release:
Counter ID: 001002 Network element name: TRANSACTIONS FAIL DUE TO BSS FAIL
Version: 4.1 NetAct name: SDCCH_BSS_FAIL
Description: Number of SDCCH transactions ended because of a BSS failure.
Impact: See field descriptions of the counters 001033, 001034, 001035, and 001036.
Updated: When one of the counters 001033, 001034, 001035, or 001036 is updated. This counter represents their sum.
See figures: - Unsuccessful SDCCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - SDCCH assignment failure - Unsuccessful SDCCH activation, timer expires while waiting for PHYSICAL_CONTEXT_CONFIRM message - TRX/TSL is blocked with different causes during an SDCCH channel activation - Unsuccessful SDCCH internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Unsuccessful SDCCH external handover, timer expires while waiting for CLEAR_COMMAND message
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
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3.4 001003 / TRANSACTIONS FAIL DUE TO RADIO FAIL
3.5 001004 / TRANSACTIONS FAIL DUE RADIO ON SOURCE CHANNEL DURING HO
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Counter ID: 001003 Network element name: TRANSACTIONS FAIL DUE TO RADIO FAIL
Version: 4.1 NetAct name: SDCCH_RADIO_FAIL
Description: Number of SDCCH transactions ended because of a radio failure.
Impact: Call cleared
Reason for the Impact: External / Abis Interface
Updated: When an SDCCH transaction ends because of a radio failure (radio link timeout) and the RRM releases the SDCCH.
This counter is updated in call phases 1-8 only.
See figures: - TCH assignment failure - Connection failure during SDCCH assignment
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counter ID: 001004 Network element name: TRANSACTIONS FAIL DUE RADIO ON SOURCE CHANNEL DURING HO
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3.6 001005 / TRANSACTIONS FAIL DUE RADIO ON TARGET CHANNEL
Version: 4.1 NetAct name: SDCCH_RF_OLD_HO
Description: Number of SDCCH transactions ended because of a radio failure on the source channel during a handover between SDCCH-SDCCH or SDCCH-TCH.
It is this counter in the source cell that is updated. If the target cell lies within the same BSC, also counter 001005 in the target cell is updated along with this counter.
Impact: HO failure and call cleared
Updated: When an SDCCH transaction ends because of a radio failure (HO failure) on the source channel during a handover attempt and the RRM releases the SDCCH.
This counter is updated in call phases 9-11 only.
See figure Unsuccessful SDCCH internal inter-cell handover, BTS sends CONNECTION_FAILURE message.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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001005: TRANSACTIONS FAIL DUE RADIO ON TARGET CHANNEL
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Counter ID: 001005 Network element name: TRANSACTIONS FAIL DUE RADIO ON TARGET CHANNEL
Version: 4.1 NetAct name: SDCCH_RF_NEW_HO
Description: Number of SDCCH transactions ended because of a radio failure on the target channel during an SDCCH HO.
Impact: HO failure, the call may possibly be cleared
Reason for the impact: Since the MS cannot access the target channel, a radio failure occurs. The unsuccessful seizure may have been caused by a missing indication of call establishment, missing detection of HO, missing indication of the HO completed, or corrupted messages related to the HO.
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3.7 001006 / SUCCESS SEIZURE FOR HO
Updated: When an SDCCH transaction ends because of a radio failure on the target channel during a handover attempt and the RRM releases the SDCCH.
This counter is updated in call phases 12-14 only.
See figure Unsuccessful SDCCH internal intra-cell handover, CONNECTION_FAILURE message comes to the target channel during handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counter ID: 001006 Network element name: SUCCESS SEIZURE FOR HO
Version: 4.0 NetAct name: SDCCH_HO_SEIZ
Description: Number of successful SDCCH seizures for a handover.
Updated: When the RRM allocates an SDCCH as a response to an SDCCH request in a handover attempt.
See figures:- Successful SDCCH internal intra-cell handover- Successful SDCCH internal inter-cell handover- Successful SDCCH external handover target
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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3.8 001007 / SUCCESS SEIZURE FOR IMMEDIATE ASSIGN-MENT
3.9 001008 / SUCCESS TCH SEIZURE FOR HO
Counter ID: 001007 Network element name: SUCCESS SEIZURE FOR IMMEDIATE ASSIGNMENT
Version: 4.0 NetAct name: SDCCH_ASSIGN
Description: Number of successful seizures of SDCCH for an immediate assignment.
Updated: When the RRM allocates an SDCCH for an immediate assignment in a call attempt.
See figures:- Basic call with counters- Reconfiguration from TCH to SDCCH
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counter ID: 001008 Network element name: SUCCESS TCH SEIZURE FOR HO
Version: 4.0 NetAct name: TCH_HO_SEIZ
Description: Number of successful requests for a TCH in a handover.
Updated: When the RRM allocates a TCH as a response to a TCH request in a handover attempt. The channel is reserved by the RRM, but the success of the HO is not known in this phase.
See figures:- Successful internal intra-cell handover- Internal intra-cell HO, successful TCH queuing- Successful internal inter-cell handover- Successful external handover, target
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
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3.10 001009 / SUCCESS TCH SEIZURE FOR NORMAL ASSIGN-MENT
3.11 001010 / TCH REQUEST SUCCESS AND UNSUCCESS
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Counter ID: 001009 Network element name: SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT
Version: 4.0 NetAct name: TCH_NORM_SEIZ
Description: Number of successful requests for a TCH in a normal assignment.
Updated: When the RRM allocates a TCH as a response to a TCH request in a call attempt.
See figures:- Basic call with counters- Basic call with priority subscriber- Successful TCH queuing- Successful forced release- Successful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counter ID: 001010 Network element name: TCH REQUEST SUCCESS AND UNSUCCESS
Version: 4.0 NetAct name: TCH_REQUEST
Description: Total number of requests for a TCH (successful and unsuccessful).
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3.12 001011 / TCH REQUEST REJECTED DUE TO LACK
Updated: When the RRM receives a request for a TCH either in a call or a handover attempt.
See figures: - Basic call with counters - Basic call with priority subscriber - FACCH call setup due to SDCCH congestion with counters - FACCH call setup because of SDCCH congestion - Basic call, no free TCH and queuing or directed retry is not allowed - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful trunk reservation - Successful internal intra-cell handover - Internal intra-cell HO, successful TCH queuing - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Internal directed retry - Successful internal inter-cell handover - Successful external handover, target - Successful forced release - Unsuccessful forced release - Unsuccessful forced release with external handover - Successful forced handover - Unsuccessful forced handover - Unsuccessful forced handover with external handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counter ID: 001011 Network element name: TCH REQUEST REJECTED DUE TO LACK
Version: 4.1 NetAct name: TCH_REQ_REJ_LACK
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3.13 001012 / TRANSACTIONS ENDED DUE TO BSS PROBLEM
Description: Number of requests for TCHs that are rejected because there are no radio resources available. All kinds of procedures used to request a TCH are consid-ered, that is, the TCH is rejected if there is no requested resources available for assignments using the normal TCH assignment procedure and assignments for all kinds of (incoming) handovers. This counter is also updated when a request for TCH is rejected because of a mismatch between the types of the requested channel and the A interface circuit.
See also counter 004079.
Updated: When the RRM has no TCHs available for either call or HO attemptrequests, or the RRM changes the A interface circuit pool before the TCH allocation.This counter may be updated immediately after a TCH request or, in case of queu-ing,when the queuing timer expires.NOTE! In case of DR this counter is updated as follows:1) When a call is removed from the queue because of a DR attempt, this counter isNOT updated on the SOURCE side, instead counter 001173 is updated.2) If queuing is not used or the queuing timer expires before a DR attempt, thiscounter is updated on the SOURCE side.3) On the TARGET side, this counter is updated in case of congestion (blocking).See figures:- Basic call without counters- Basic call, no free TCHs, unsuccessful queuing and directed retry not activated- TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed- Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed- Internal intra-cell handover, unsuccessful TCH queuing- Unsuccessful forced release- Unsuccessful forced release with external handover- Unsuccessful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
004079: CAUSE DIR RETRY
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Used from release: S1 Definition updated in release:S15
Counter ID: 001012 Network element name: TRANSACTIONS ENDED DUE TO BSS PROBLEM
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Counters of Traffic Measurement
3.14 001013 / TRANSACTIONS ENDED DUE RADIO FAIL
Version: 4.1 NetAct name: TCH_BSS_FAIL
Description: Number of TCH transactions ended because of BSS problems.
Impact: See descriptions of counters 001045, 001046, 001047 and 001051.
Updated: When one of the counters 001045, 001046, 001047, or 001051 is updated. This counter represents their sum.
See figures: - Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - TCH assignment failure, MSC sends CLEAR_COMMAND message - TRX or TSL is blocked with different causes during a call - Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message - Unsuccessful external handover, MS sends a handover failure - Dropped call between ASSIGNMENT COMPLETE and DISCONNECT
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counter ID: 001013 Network element name: TRANSACTIONS ENDED DUE RADIO FAIL
Version: 4.1 NetAct name: TCH_RADIO_FAIL
Description: Number of TCH transactions ended because of a radio failure.
Impact: Call cleared
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3.15 001014 / TRANSACTIONS ENDED DUE SOURCE CHANNEL FAIL DURING HO
Updated: When a TCH transaction ends because of a radio failure and the RRM releases the TCH. This counter is typical in connection with coverage problems. ERROR INDICATION is sent by the BTS to the BSC in the following cases: - Sequence error in a received message (the case where retransmission is not possi-ble). - Timer T200 has expired N200 +1 times (MS does not respond any more). - Unsolicited DM response when link is established.
This counter is updated in call phases 1-8 or 15 only.
See figures: - Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message - Dropped call between ASSIGNMENT COMPLETE and DISCONNECT
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Used from release: S1 Definition updated in release:S11
Counter ID: 001014 Network element name: TRANSACTIONS ENDED DUE SOURCE CHANNEL FAIL DURING HO
Version: 4.1 NetAct name: TCH_RF_OLD_HO
Description: Number of TCH transactions ended because of a radio failure on the source channel during a handover attempt.
Impact: HO failure and call cleared
Updated: When a TCH transaction ends because of a radio failure (HO failure) on the source channel during a handover attempt.
This counter is updated in call phases 9-11 only.
See figure Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counters of Traffic Measurement
3.16 001015 / TRANSACTIONS ENDED DUE TARGET CHANNEL FAIL
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Counter ID: 001015 Network element name: TRANSACTIONS ENDED DUE TARGET CHANNEL FAIL
Version: 4.1 NetAct name: TCH_RF_NEW_HO
Description: A TCH transaction ends because of a radio failure (HO failure) on the target channel during a handover attempt.
Counter 001088 is also updated along with this counter if the MS fails to return to the old channel during an inter-BSC handover.
Impact: HO failure, the call may possibly be cleared
Reason for the impact: Since the MS cannot access the target channel, a radio failure occurs. It may be caused by missing indication of call establishment, missing detec-tion of HO, missing indication of the HO completed or corrupted messages related to HO.
Updated: When a TCH transaction ends because of a radio failure on the target channel during a handover attempt.
This counter is updated in call phases 12-14 only.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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001088: TCH A IF FAIL SOURCE
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3.17 001016 / CALL ATTEMPTS IN THE QUEUE
3.18 001017 / HANDOVER ATTEMPTS IN THE QUEUE
Counter ID: 001016 Network element name: CALL ATTEMPTS IN THE QUEUE
Version: 4.0 NetAct name: TCH_QD_CALL_ATT
Description: Number of call attempts set in the queue for a TCH.
Counter 001010 is updated along with this counter.
Updated: When the RRM puts a TCH request for call attempt in the queue since it has no TCHs of the requested kind available.
See figures: - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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001010: TCH REQUEST SUCCESS AND UNSUCCESS
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Counter ID: 001017 Network element name: HANDOVER ATTEMPTS IN THE QUEUE
Version: 4.0 NetAct name: TCH_QD_HO_ATT
Description: Number of HO attempts set in the queue for a TCH.
Counter 001010 is updated along with this counter.
Updated: When the RRM sets a TCH request for a handover attempt in the queue since it has no TCHs of the requested kind available.
See figures:- Internal intra-cell HO, successful TCH queuing- Internal intra-cell handover, unsuccessful TCH queuing- Internal directed retry
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counters of Traffic Measurement
3.19 001018 / AVE QUEUE LENGTH FOR CHANNEL SEIZURE REQUEST
3.20 001019 / QUEUE DENOMINATOR 1
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
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Counter ID: 001018 Network element name: AVE QUEUE LENGTH FOR CHANNEL SEIZURE REQUEST
Version: 4.1 NetAct name: AVE_Q_SEIZ_REQ
Description: Average number of requests for channel seizure in the queue.
Updated: Every 20 seconds, as averaging takes place once in the measurement period. The sample counter is updated when a request is set in the queue or removed from it. Updated only for the normal coverage area.
See figure Average counter updating.
Logical type: Sum Trigger type: Sample Sampling interval: 20 s
Unit: Integer number Range: Example values:
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BSS21277: 105km Extended Cell CS
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Used from release: S1 Definition updated in release:S14
Counter ID: 001019 Network element name: QUEUE DENOMINATOR 1
Version: 4.0 NetAct name: QUEUE_DENOM1
Description: Denominator of the average number of requests for channel seizure (always > 0).
Updated:
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3.21 001020 / AVE QUEUE TIME OF CALL ATTEMPTS
Logical type: Sum Trigger type: Sample Sampling interval: 20 s
Unit: Integer number Range: Example values:
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Counter ID: 001020 Network element name: AVE QUEUE TIME OF CALL ATTEMPTS
Version: 4.0 NetAct name: AVE_Q_TIM_CALL_ATT
Description: The average time for which call attempts are kept in the queue (the unit of the value is 10 ms).
In a successful case counters 001009 and 001021 are updated along with this counter. In an unsuccessful case counters 001021, 001024 and 001060 are updated along with this counter.
Updated: When a TCH request for a call attempt is removed from the queue (both in a successful and unsuccessful case).
See figures: - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated
Logical type: Sum Trigger type: Duration Sampling interval:
Unit: 10 ms Range: Example values:
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001009: SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT
001021: QUEUE DENOMINATOR 2
001024: NOT SERVED QUEUED CALL ATTEMPTS
001060: QUE ALL ASSIGN REQ FAIL
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3.22 001021 / QUEUE DENOMINATOR 2
3.23 001022 / AVE QUEUE TIME OF HO ATTEMPTS
Counter ID: 001021 Network element name: QUEUE DENOMINATOR 2
Version: 4.0 NetAct name: QUEUE_DENOM2
Description: Denominator of the average time for which call attempts are kept in the queue (always > 0).
Updated: See figures: - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counter ID: 001022 Network element name: AVE QUEUE TIME OF HO ATTEMPTS
Version: 4.0 NetAct name: AVE_Q_TIM_HO_ATT
Description: The average time for which HO attempts are kept in the queue (the unit of the value is 10 ms).
In a successful case counters 001008 and 001023 are updated along with this counter. In an unsuccessful case counters 001023, 001025 and 001068 are updated along with this counter.
Updated: When a TCH request for a handover attempt is removed from the queue (both in a successful and unsuccessful case).
See figures: - Internal intra-cell HO, successful TCH queuing - Internal intra-cell handover, unsuccessful TCH queuing - Internal directed retry
Logical type: Sum Trigger type: Duration Sampling interval:
Unit: 10 ms Range: Example values:
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3.24 001023 / QUEUE DENOMINATOR 3
3.25 001024 / NOT SERVED QUEUED CALL ATTEMPTS
Dependencies with other counters:
001008: SUCCESS TCH SEIZURE FOR HO
001023: QUEUE DENOMINATOR 3
001025: NOT SERVED QUEUED HO ATTEMPTS
001068: QUE ALL HO REQ FAIL
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Counter ID: 001023 Network element name: QUEUE DENOMINATOR 3
Version: 4.0 NetAct name: QUEUE_DENOM3
Description: Denominator of the average time for which HO attempts are kept in the queue (always > 0).
Updated: See figures:- Internal intra-cell HO, successful TCH queuing- Internal intra-cell handover, unsuccessful TCH queuing- Internal directed retry
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counter ID: 001024 Network element name: NOT SERVED QUEUED CALL ATTEMPTS
Version: 4.0 NetAct name: UNSRV_QD_CALL_ATT
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3.26 001025 / NOT SERVED QUEUED HO ATTEMPTS
Description: Number of call attempts in the queue which were not served.
Counters 001020, 001021 and 001060 are updated along with this counter.
Updated: When a call attempt is removed from the queue because a timer expires, or the call attempt is substituted by another attempt of higher priority. NOTE! This counter is not updated in DR (neither in a successful or unsuccessful DR).
See figure Basic call, no free TCHs, unsuccessful queuing and directed retry not acti-vated.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001020: AVE QUEUE TIME OF CALL ATTEMPTS
001021: QUEUE DENOMINATOR 2
001060: QUE ALL ASSIGN REQ FAIL
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
Counter ID: 001025 Network element name: NOT SERVED QUEUED HO ATTEMPTS
Version: 4.0 NetAct name: UNSRV_QD_HO_ATT
Description: Number of HO attempts in the queue which were not served.
Counters 001022, 001023 and 001068 are updated along with this counter.
Updated: When a handover attempt is removed from the queue because a timer expires, or the HO attempt is substituted by another attempt of higher priority.
See figure Internal intra-cell handover, unsuccessful TCH queuing.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001022: AVE QUEUE TIME OF HO ATTEMPTS
001023: QUEUE DENOMINATOR 3
001068: QUE ALL HO REQ FAIL
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3.27 001026 / TCH CALL REQ
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S1 Definition updated in release:
Counter ID: 001026 Network element name: TCH CALL REQ
Version: 4.0 NetAct name: TCH_CALL_REQ
Description: Number of TCH requests for a normal assignment (both successful and unsuccessful).
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request in a call attempt.
See figures: - Basic call with counters - Basic call with priority subscriber - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful trunk reservation - Internal directed retry - Successful forced release - Unsuccessful forced release - Successful forced handover - Unsuccessful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
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3.28 001027 / SDCCH ACT FAIL
3.29 001028 / TCH ACT FAIL
Counter ID: 001027 Network element name: SDCCH ACT FAIL
Version: 4.1 NetAct name: SDCCH_ACT_FAIL
Description: Number of SDCCH transactions that are ended because of a failure in the activation of a channel either during a call or HO attempt.
Impact:- Call cleared- HO failure
Reason for the impact: External / Abis interface
Updated: When either of the counters 001072 and 001074 is updated. This counter represents their sum.
See figures:- Unsuccessful SDCCH activation- Unsuccessful SDCCH internal intra-cell handover, unsuccessful channel activation
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001028 Network element name: TCH ACT FAIL
Version: 4.1 NetAct name: TCH_ACT_FAIL
Description: Number of TCH transactions that are ended because of a failure in the activation of a channel either during a call or HO attempt.
Impact:- Call cleared- HO failure
Reason for the impact: Abis Interface
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3.30 001029 / TCH TR FAIL
Updated: When either of the counters 001081 and 001083 is updated. This counter represents their sum.
See figures:- Unsuccessful TCH activation- Unsuccessful internal inter-cell handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001029 Network element name: TCH TR FAIL
Version: 4.1 NetAct name: TCH_TR_FAIL
Description: Number of TCH transactions that are ended because of a transcoder failure.
Impact: Call cleared
Updated: When a TCH transaction ends because of a transcoder failure during a call attempt and the RRM releases the TCH. These failures can also contain situations when the timer T3109 expires in a BSC in call release phase while waiting for the Release Indication. The MS subscriber does not see these failures caused by the T3109 expiry as real drop calls.
This counter is updated in call phases 1-8 or 15 only.
See figure CONNECTION_FAILURE message with cause transcoder_failure during a call.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
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3.31 001030 / TCH TR FAIL SOURCE
3.32 001031 / TCH TR FAIL TARGET
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001030 Network element name: TCH TR FAIL SOURCE
Version: 4.1 NetAct name: TCH_TR_FAIL_OLD
Description: Number of TCH transactions that are ended because of a transcoder failure on the source channel during a handover on a TCH.
Impact: HO failure and call cleared
Updated: When a TCH transaction ends because of a transcoder failure on the source channel during a handover attempt and the RRM releases the TCH. This happens before the RRM receives a message from the MS stating that the HO or assignment is completed.
This counter is updated in call phases 9-11 only.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001031 Network element name: TCH TR FAIL TARGET
Version: 4.1 NetAct name: TCH_TR_FAIL_NEW
Description: Number of TCH transactions that are ended because of a transcoder failure on the target channel during a handover on a TCH.
Impact: HO failure, the call may possibly be cleared
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3.33 001032 / NOT RELEVANT
3.34 001033 / SDCCH ABIS PROBL
Updated: When a TCH transaction ends because of a transcoder failure on the target channel during a handover attempt and the RRM releases the TCH. This happens before the RRM receives a message from the MS stating that the HO or assignment is completed.
This counter is updated in call phases 12-14 only.
See figure Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001032 Network element name: NOT RELEVANT
Version: 4.0 NetAct name: SDCCH_FAST_SEIZ
Description: This counter is not in use
Updated: This counter is not updated
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001033 Network element name: SDCCH ABIS PROBL
Version: 4.1 NetAct name: SDCCH_ABIS_FAIL
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3.35 001034 / SDCCH A IF PROBL
Description: Number of SDCCH transactions that are ended because of a failure in the Abis interface.
Impact:- Call cleared- HO failure
Reason for the impact: External / Abis interface
Updated: When any of the counters 001075, 001076 or 001077 is updated. This counter represents their sum.
See figures: - Unsuccessful SDCCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Unsuccessful SDCCH activation, timer expires while waiting for PHYSICAL_CONTEXT_CONFIRM message - TRX/TSL is blocked with different causes during an SDCCH channel activation - Unsuccessful SDCCH internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001034 Network element name: SDCCH A IF PROBL
Version: 4.1 NetAct name: SDCCH_A_IF_FAIL
Description: Number of SDCCH transactions that are ended because of a failure in the A interface.
Impact:- Call cleared- HO failure
Reason for the impact: External / A interface
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3.36 001035 / SDCCH LAPD FAIL
Updated: When any of the counters 001078, 001079, and 001080 is updated. This counter represents their sum.
See figures: - SDCCH assignment failure - Unsuccessful SDCCH external handover, timer expires while waiting for CLEAR_COMMAND message
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001035 Network element name: SDCCH LAPD FAIL
Version: 4.1 NetAct name: SDCCH_LAPD_FAIL
Description: Number of SDCCH transactions that are ended because of an LAPD failure. (The blocked TRX is in one of these substates: signalling link fault or PCM fault.)
Impact:- Call cleared- HO failure
Reason for the impact: External / Abis interface
Updated: When an SDCCH transaction ends because of a TRX blocked by an LAPD failure and the RRM releases the SDCCH.
See figure TRX/TSL is blocked with different causes during an SDCCH channel acti-vation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
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3.37 001036 / SDCCH BTS FAIL
3.38 001037 / SDCCH USER ACT
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001036 Network element name: SDCCH BTS FAIL
Version: 4.1 NetAct name: SDCCH_BTS_FAIL
Description: Number of SDCCH transactions that are ended because of a BTS failure. (The blocked TRX is in one of these substates: FU fault, CU fault, BTS reset, BCF reset, both CU and FU fault, BCF fault.)
Impact: Call cleared
Updated: When an SDCCH transaction ends because of a TRX being blocked by a BTS failure and the RRM releases the SDCCH.
See figure TRX/TSL is blocked with different causes during an SDCCH channel acti-vation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001037 Network element name: SDCCH USER ACT
Version: 4.1 NetAct name: SDCCH_USER_ACT
Description: Number of SDCCH transactions that are ended because of user actions. (The TRX/TSL is in substate blocked by the user.)
Impact:- Call cleared- HO failure
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3.39 001038 / SDCCH BCSU RESET
Updated: When the user disconnects a busy SDCCH by blocking the TSL/TRX with an MML command. The transaction ends and the SDCCH is released.
See figure TRX/TSL is blocked with different causes during an SDCCH channel acti-vation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001038 Network element name: SDCCH BCSU RESET
Version: 4.1 NetAct name: SDCCH_BCSU_RESET
Description: Number of SDCCH transactions that are ended because of a BCSU/BCXU restart.
Impact:- Call cleared- HO failure
Reason for the impact: BCSU/BCXU restart
Updated: When an SDCCH transaction ends because of a TRX blocked by a BCSU/BCXU restart and the RRM releases the SDCCH.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
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3.40 001039 / SDCCH NETW ACT
3.41 001040 / TRUNK RES INVOC
Counter ID: 001039 Network element name: SDCCH NETW ACT
Version: 4.1 NetAct name: SDCCH_NETW_ACT
Description: Number of SDCCH transactions ended because of a reconfiguration of the radio network. (The TRX blocked is in substate blocked by the system.)
Impact:- Call cleared- HO failure
Reason for the impact: See Radio Network Management, Service Block Description, for radio network reconfiguration.
Updated: When an SDCCH transaction ends because of a TRX blocked by a failure which leads to TRX reconfiguration. The failure may occur both during call and HO attempts.
See figure TRX/TSL is blocked with different causes during an SDCCH channel acti-vation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001040 Network element name: TRUNK RES INVOC
Version: 4.0 NetAct name: TRUNK_RES_INVOC
Description: Total number of Trunk Reservation function invocations.
Updated: When Trunk Reservation is applied during call setup or handover in Radio Resource Management.
See figures:- Successful trunk reservation- Unsuccessful trunk reservation
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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3.42 001041 / SUCC TRUNK RES INVOC
3.43 001042 / TRUNK RES INVOC RES REFUSED
Dependencies with other counters:
Operability class:
Related to feature:
BSC1006: Trunk Reservation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001041 Network element name: SUCC TRUNK RES INVOC
Version: 4.0 NetAct name: TRUNK_RES_INVOC_SUCC
Description: Number of successful Trunk Reservation function invocations.
Updated: When Trunk Reservation allows resources to be allocated in call setup or handover in Radio Resource Management.
See figure Successful trunk reservation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC1006: Trunk Reservation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001042 Network element name: TRUNK RES INVOC RES REFUSED
Version: 4.0 NetAct name: TRUNK_RES_INVOC_REFUSED
Description: Number of Trunk Reservation function invocations that result in resource allocation being refused.
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3.44 001043 / TCH REQ FACCH CALLSET
Updated: When Trunk Reservation denies access and does not allow resources to be allocated in call setup or handover in Radio Resource Management.
See figure Unsuccessful trunk reservation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC1006: Trunk Reservation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001043 Network element name: TCH REQ FACCH CALLSET
Version: 4.0 NetAct name: TCH_FAST_REQ
Description: Number of TCH requests for FACCH call setup during SDCCH conges-tion (both successful and unsuccessful).
Counters 001010 and 001098 are updated along with this counter.
Updated: When the RRM receives a request for an SDCCH but there are no SDCCHs idle and a TCH is tried to be allocated as part of the FACCH call setup. It is indicated in the received SDCCH request whether a FACCH setup is allowed or not.
See figures: - FACCH call setup due to SDCCH congestion with counters - FACCH call setup because of SDCCH congestion
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
001098: TCH SEIZ ATT DUE SDCCH CON
Operability class:
Related to feature:
BSS5290: FACCH Call Setup due to SDCCH Congestion
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
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3.45 001044 / TCH SEIZ FACCH CALL SET
3.46 001045 / TCH ABIS PROBL
Exceptions to related standard:
Used from release: S2 Definition updated in release:S5
Counter ID: 001044 Network element name: TCH SEIZ FACCH CALL SET
Version: 4.0 NetAct name: TCH_FAST_SEIZ
Description: Number of successful seizures of TCHs in FACCH call setup.
Counter 001099 is updated along with this counter.
Updated: When the RRM allocates a TCH as a response to an SDCCH request as part of the FACCH call setup because of no SDCCHs being idle.
See figure FACCH call setup due to SDCCH congestion with counters.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001099: TCH SEIZ DUE SDCCH CON
Operability class:
Related to feature:
BSS5290: FACCH Call Setup due to SDCCH Congestion
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:S5
Counter ID: 001045 Network element name: TCH ABIS PROBL
Version: 4.1 NetAct name: TCH_ABIS_FAIL
Description: Number of TCH transactions that are ended because of a failure in the Abis interface.
Impact:- The call may possibly be cleared- HO failure
Reason for the impact: External / Abis Interface
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3.47 001046 / TCH LAPD FAIL
Updated: When any of the counters 001084, 001085, and 001086 is updated. This counter represents their sum.
See figures: - Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - TRX or TSL is blocked with different causes during a call - Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Dropped call between ASSIGNMENT COMPLETE and DISCONNECT
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001046 Network element name: TCH LAPD FAIL
Version: 4.1 NetAct name: TCH_LAPD_FAIL
Description: Number of TCH transactions that are ended because of an LAPD failure. (The blocked TRX is in one of these substates: signalling link fault or PCM fault.)
Impact:- Call cleared- HO failure
Updated: When a TCH transaction ends because of a TRX blocked by an LAPD failure and the RRM releases the TCH.
See figure TRX or TSL is blocked with different causes during a call.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
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3.48 001047 / TCH BTS FAIL
3.49 001048 / TCH USER ACT
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001047 Network element name: TCH BTS FAIL
Version: 4.1 NetAct name: TCH_BTS_FAIL
Description: Number of TCH transactions that are ended because of a BTS failure. (The blocked TRX is in one of these substates: FU fault, CU fault, BTS reset, BCF reset, both CU and FU fault, BCF fault.)
Impact: Call cleared
Updated: When a TCH transaction ends because of a TRX blocked by a BTS failure and the RRM releases the TCH.
See figure TRX or TSL is blocked with different causes during a call.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001048 Network element name: TCH USER ACT
Version: 4.1 NetAct name: TCH_USER_ACT
Description: Number of TCH transactions that are ended because of user actions. (The TRX/TSL is in substate blocked by the user.)
Impact:- Call cleared- HO failure
Updated: When the user disconnects a busy TCH by blocking the TSL/TRX with an MML command. The transaction ends and the TCH is released.
See figure TRX or TSL is blocked with different causes during a call.
Logical type: Sum Trigger type: Event Sampling interval:
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3.50 001049 / TCH BCSU RESET
3.51 001050 / TCH NETW ACT
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001049 Network element name: TCH BCSU RESET
Version: 4.1 NetAct name: TCH_BCSU_RESET
Description: Number of TCH transactions that are ended because of a BCSU/BCXU restart.
Impact:- Call cleared- HO failure
Reason for the impact: BCSU/BCXU restart
Updated: When a TCH transaction ends because of a TRX blocked by a BCSU/BCXU restart and the RRM releases the TCH.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001050 Network element name: TCH NETW ACT
Version: 4.1 NetAct name: TCH_NETW_ACT
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3.52 001051 / TCH A IF PROBL
Description: Number of TCH transactions ended because of a reconfiguration of the radio network. (The blocked TRX is in substate blocked by the system.)
Reason for the impact: See Radio Network Management for radio network reconfig-uration.
Updated: When a TCH transaction ends because of a TRX blocked by a failure which leads to TRX reconfiguration.
See figure TRX or TSL is blocked with different causes during a call.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001051 Network element name: TCH A IF PROBL
Version: 4.1 NetAct name: TCH_A_IF_FAIL
Description: Number of TCH transactions that are ended because of a failure in the A interface.
Impact:- Call is possibly cleared- HO failure
Reason for the impact: External / A interface
Updated: When any of the counters 001087, 001088 or 001089 is updated. This counter represents their sum.
See figures: - TCH assignment failure, MSC sends CLEAR_COMMAND message - Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message - Unsuccessful external handover, MS sends a handover failure
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
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3.53 001052 / TRHO REQ
3.54 001053 / TRHO ENQUIRIES
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001052 Network element name: TRHO REQ
Version: 4.1 NetAct name: TRHO_REQ
Description: Number of HOs because of traffic reasons.
Updated: When a handover (under the control of the MSC and because of a traffic reason procedure) is started as a response to the TRAFFIC_REASON_HO_CANDIDATE_ENQUIRY message from the A interface. The counter indicates the number of mobile stations to be handed over, as deter-mined by the MSC. Updated only for the normal coverage area.
See figure Successful traffic reason handover, source.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21277: 105km Extended Cell CS
BSC1005: Traffic Reason Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:S14
Counter ID: 001053 Network element name: TRHO ENQUIRIES
Version: 4.0 NetAct name: TRHO_ENQ
Description: Number of enquiries about traffic reason HO.
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3.55 001054 / FOR REL ASSIGN REQ ATT
Updated: When the RRM starts a handover by sending a message enquiring about the traffic reason to the Abis interface.
See figure Successful traffic reason handover, source.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC1005: Traffic Reason Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S2 Definition updated in release:
Counter ID: 001054 Network element name: FOR REL ASSIGN REQ ATT
Version: 4.0 NetAct name: FOR_REL_ASS_REQ_ATT
Description: Number of call attempt requests capable of doing a forced release for a call in progress.
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request for a call attempt which is capable of doing a forced release for a call in progress.
See figures:- Basic call with priority subscriber- Successful forced release- Unsuccessful forced release
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
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3.56 001055 / FOR HO ASSIGN REQ ATT
3.57 001056 / QUE ALL ASSIGN REQ ATT
Used from release: S3 Definition updated in release:
Counter ID: 001055 Network element name: FOR HO ASSIGN REQ ATT
Version: 4.0 NetAct name: FOR_HO_ASS_REQ_ATT
Description: Number of call attempt requests capable of doing a forced HO for a call in progress.
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request for a call attempt which is capable of doing a forced HO for a call in progress.
See figures:- Basic call with priority subscriber- Successful forced handover- Unsuccessful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001056 Network element name: QUE ALL ASSIGN REQ ATT
Version: 4.0 NetAct name: QUE_ALL_ASS_REQ_ATT
Description: Number of requests for a call attempt with queuing allowed.
Counter 001010 is updated along with this counter.
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3.58 001057 / QUE NALL ASSIGN REQ ATT
Updated: When the RRM receives a TCH request for a call attempt which is allowed to queue for channels.
See figures: - Basic call with counters - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - Unsuccessful trunk reservation
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001057 Network element name: QUE NALL ASSIGN REQ ATT
Version: 4.0 NetAct name: QUE_NALL_ASS_REQ_ATT
Description: Number of requests for a call attempt with queuing not allowed.
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request for a call attempt which is not allowed to queue for channels.
See figures: - Basic call with counters - Basic call, no free TCH and queuing or directed retry is not allowed - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful trunk reservation
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
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3.59 001058 / FOR REL ASSIGN REQ FAIL
3.60 001059 / FOR HO ASSIGN REQ FAIL
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001058 Network element name: FOR REL ASSIGN REQ FAIL
Version: 4.0 NetAct name: FOR_REL_ASS_REQ_FAIL
Description: Number of rejected call attempt requests capable of doing a forced release for a call in progress.
Counters 001011 and 001141 are updated along with this counter.
Reason for the impact: There is no suitable call for release in the cell or the pre-emption software is not in use in the BSC.
Updated: When the RRM rejects a TCH request for a call attempt which is capable of doing a forced release for a call in progress. The high priority TCH request is rejected because of lack of a suitable call for release or because pre-emption software is not in use in the BSC.
See figure Unsuccessful forced release.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
001141: TCH SEIZ FAILS DUE TO CONG
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001059 Network element name: FOR HO ASSIGN REQ FAIL
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3.61 001060 / QUE ALL ASSIGN REQ FAIL
Version: 4.0 NetAct name: FOR_HO_ASS_REQ_FAIL
Description: Number of rejected call attempt requests capable of doing a forced HO for a call in progress.
Counters 001011 and 001141 are updated along with this counter.
Reason for the impact: There is no suitable call for a forced handover in the cell or the pre-emption software is not in use in the BSC.
Updated: When the RRM rejects a TCH request for a call attempt which is capable of doing a forced handover for a call in progress. The high priority TCH request is rejected because of a lack of suitable calls for a forced handover or because the pre-emption software is not in use in the BSC.
See figure Unsuccessful forced handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
001141: TCH SEIZ FAILS DUE TO CONG
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001060 Network element name: QUE ALL ASSIGN REQ FAIL
Version: 4.0 NetAct name: QUE_ALL_ASS_REQ_FAIL
Description: Number of rejected call attempt requests with queuing allowed.
Counters 001011 and 001141 are updated along with this counter.
Reason for the impact: This may be because of queuing is not allowed in the BTS, or the request is removed from the queue because of expiry of a timer, or the request is replaced by a request with higher priority.
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3.62 001061 / QUE NALL ASSIGN REQ FAIL
Updated: When the RRM rejects a TCH request for a call attempt which is allowed to queue.
See figures: - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - Unsuccessful trunk reservation
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001061 Network element name: QUE NALL ASSIGN REQ FAIL
Version: 4.0 NetAct name: QUE_NALL_ASS_REQ_FAIL
Description: Number of rejected call attempt requests with queuing not allowed.
Counters 001011 and 001141 are updated along with this counter.
Reason for the impact: There are no radio resources available.
Updated: When the RRM rejects a TCH request for a call attempt which is not allowed to queue.
See figures: - Basic call, no free TCH and queuing or directed retry is not allowed - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful trunk reservation
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
001141: TCH SEIZ FAILS DUE TO CONG
Operability class:
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3.63 001062 / FOR REL HO REQ ATT
3.64 001063 / FOR HO HO REQ ATT
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001062 Network element name: FOR REL HO REQ ATT
Version: 4.0 NetAct name: FOR_REL_HO_REQ_ATT
Description: Number of requests for a handover capable of doing a forced release for a call in progress.
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request for a handover attempt which is capable of doing a forced release for a call in progress.
See figure Unsuccessful forced release with external handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001063 Network element name: FOR HO HO REQ ATT
Version: 4.0 NetAct name: FOR_HO_HO_REQ_ATT
Description: Number of requests for a handover capable of doing a forced HO for a call in progress.
Counter 001010 is updated along with this counter.
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3.65 001064 / QUE ALL HO REQ ATT
Updated: When the RRM receives a TCH request for a handover attempt which is capable of doing a forced HO for a call in progress.
See figure Unsuccessful forced handover with external handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001064 Network element name: QUE ALL HO REQ ATT
Version: 4.0 NetAct name: QUE_ALL_HO_REQ_ATT
Description: Number of requests for a handover with queuing allowed.
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request for a handover attempt which is allowed to queue for radio resources.
See figures: - Successful internal intra-cell handover - Internal intra-cell HO, successful TCH queuing - Internal intra-cell handover, unsuccessful TCH queuing - Internal directed retry - Successful internal inter-cell handover - Successful external handover, target
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
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3.66 001065 / QUE NALL HO REQ ATT
3.67 001066 / FOR REL HO REQ FAIL
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001065 Network element name: QUE NALL HO REQ ATT
Version: 4.0 NetAct name: QUE_NALL_HO_REQ_ATT
Description: Number of requests for HO with queuing not allowed.
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request for a handover attempt which is not allowed to queue for radio resources.
See figures: - Successful internal intra-cell handover - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Successful internal inter-cell handover - Successful external handover, target
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001066 Network element name: FOR REL HO REQ FAIL
Version: 4.0 NetAct name: FOR_REL_HO_REQ_FAIL
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3.68 001067 / FOR HO HO REQ FAIL
Description: Number of rejected requests for a handover capable of doing a forced release for a call in progress.
Counter 001011 is updated along with this counter.
Reason for the impact: There is no suitable call for release in the cell or the pre-emption software is not in use in BSC.
Updated: When the RRM rejects a TCH request for a handover attempt which is capable of doing a forced release for a call in progress. The high priority TCH request is rejected because of a lack of suitable calls for release or because the pre-emption software is not in use in the BSC.
See figure Unsuccessful forced release with external handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001067 Network element name: FOR HO HO REQ FAIL
Version: 4.0 NetAct name: FOR_HO_HO_REQ_FAIL
Description: Number of rejected requests for a handover capable of doing a forced HO for a call in progress.
Counter 001011 is updated along with this counter.
Reason for the impact: There is no suitable call for a forced handover in the cell or the pre-emption software is not in use in the BSC.
Updated: When the RRM rejects a TCH request for a handover attempt which is capable of doing a forced handover for a call in progress. The high priority TCH request is rejected because of a lack of suitable calls for a forced handover or because the pre-emption software is not in use in the BSC.
See figure Unsuccessful forced handover with external handover.
Logical type: Sum Trigger type: Event Sampling interval:
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3.69 001068 / QUE ALL HO REQ FAIL
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001068 Network element name: QUE ALL HO REQ FAIL
Version: 4.0 NetAct name: QUE_ALL_HO_REQ_FAIL
Description: Number of the rejected requests for a handover with queuing allowed.
Counter 001011 is updated along with this counter.
Reason for the impact: This may be because queuing is not allowed in the BTS, or the request is removed from the queue because of expiry of a timer, or the request is replaced by another with higher priority.
Updated: When the RRM rejects a TCH request for a handover attempt which is allowed to queue.
See figure Internal intra-cell handover, unsuccessful TCH queuing.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
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3.70 001069 / QUE NALL HO REQ FAIL
3.71 001070 / FORCED RELEASES
Counter ID: 001069 Network element name: QUE NALL HO REQ FAIL
Version: 4.0 NetAct name: QUE_NALL_HO_REQ_FAIL
Description: Number of rejected requests for a handover with queuing not allowed.
Counter 001011 is updated along with this counter.
Reason for the impact: There are no radio resources available.
Updated: When the RRM rejects a TCH request for a handover attempt which is not allowed to queue.
See figure Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001070 Network element name: FORCED RELEASES
Version: 4.0 NetAct name: FORCED_RELEASES
Description: Number of forced releases.
Updated: When the RRM starts to terminate a call in progress forcefully by sending a release request to the Abis interface.
See figure Successful forced release.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
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3.72 001071 / FORCED HANDOVERS
3.73 001072 / SDCCH ACT FAIL CALL
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001071 Network element name: FORCED HANDOVERS
Version: 4.0 NetAct name: FORCED_HANDOVERS
Description: Number of forced HOs.
Updated: When the RRM receives an acknowledgement from the Handover Attempt Supervisor of the Abis interface to its request for a forced HO.
See figure Successful forced handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC3910: Queuing and Priority
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001072 Network element name: SDCCH ACT FAIL CALL
Version: 4.1 NetAct name: SDCCH_ACT_FAIL_CALL
Description: Number of SDCCH transactions that are ended because of a failure in the activation of a channel during a call.
Impact: Call cleared
Reason for the impact: Abis Interface
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3.74 001073 / NOT RELEVANT
3.75 001074 / SDCCH ACT FAIL TARGET
Updated: When an SDCCH transaction ends because of a failure to activate a channel in the BTS and the RRM releases the SDCCH.
This counter is updated in call phases 1-8 only.
See figure Unsuccessful SDCCH activation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001073 Network element name: NOT RELEVANT
Version: 4.0 NetAct name:
Description: This counter is not in use
Updated: This counter is not updated
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001074 Network element name: SDCCH ACT FAIL TARGET
Version: 4.1 NetAct name: SDCCH_ACT_FAIL_NEW
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3.76 001075 / SDCCH ABIS FAIL CALL
Description: Number of SDCCH transactions that are ended because of a failure to activate the target channel during an SDCCH HO.
Impact: HO failure and possibly call cleared
Reason for the impact: External / Abis Interface
Updated: When an SDCCH transaction ends because of a failure to activate the target channel during a handover attempt and the RRM releases the SDCCH.
This counter is updated in call phases 12-14 only.
See figure Unsuccessful SDCCH internal intra-cell handover, unsuccessful channel activation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC1003: SDCCH Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001075 Network element name: SDCCH ABIS FAIL CALL
Version: 4.1 NetAct name: SDCCH_ABIS_FAIL_CALL
Description: Number of SDCCH transactions that are ended because of a failure in the Abis interface during a call in progress. There is no acknowledgement of channel activation, no indication of call establishment received, i.e., ghosts.
Impact: Call cleared
Reason for the impact: External / Abis interface
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3.77 001076 / SDCCH ABIS FAIL SOURCE
Updated: When an SDCCH transaction ends because of signalling problems in the Abis interface and the RRM releases the SDCCH.
This counter is updated in call phases 1-8 only.
Reasons that trigger the counter: - Phantom RACHs that have a valid establishment cause. - The BTS can hear the MS, but the MS cannot hear the BTS, and so the MS does not respond to the IMMEDIATE ASSIGNMENT message with a SABM. - MS is accessing the network at the limit of sensitivity and messages are lost. - Poor Radio conditions. - MS is accessing network through another BTS (co-channel, co-BSIC interference).
See figures: - Unsuccessful SDCCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Unsuccessful SDCCH activation, timer expires while waiting for PHYSICAL_CONTEXT_CONFIRM message - TRX/TSL is blocked with different causes during an SDCCH channel activation
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001076 Network element name: SDCCH ABIS FAIL SOURCE
Version: 4.1 NetAct name: SDCCH_ABIS_FAIL_OLD
Description: Number of SDCCH transactions that are ended because of a failure in the Abis interface on the source channel during SDCCH-SDCCH or SDCCH-TCH HO.
Impact: HO failure and call cleared
Reason for the impact: External / Abis interface.
Updated: When an SDCCH transaction ends because of a failure in the Abis interface on the source channel during a handover and the RRM releases the SDCCH.
This counter is updated in call phases 9-11 only.
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3.78 001077 / SDCCH ABIS FAIL TARGET
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC1003: SDCCH Handover
BSS6115: Radio Channel Allocation Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001077 Network element name: SDCCH ABIS FAIL TARGET
Version: 4.1 NetAct name: SDCCH_ABIS_FAIL_NEW
Description: Number of SDCCH transactions that are ended because of a failure in the Abis interface on the target channel during a handover.
Impact: HO failure and possibly call cleared
Reason for the impact: External / Abis interface
Updated: When an SDCCH transaction ends because of a failure in the Abis interface on the target channel during a handover and the RRM releases the SDCCH.
This counter is updated in call phases 12-14 only.
See figure Unsuccessful SDCCH internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC1003: SDCCH Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
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3.79 001078 / SDCCH A IF FAIL CALL
3.80 001079 / SDCCH A IF FAIL SOURCE
Counter ID: 001078 Network element name: SDCCH A IF FAIL CALL
Version: 4.1 NetAct name: SDCCH_A_IF_FAIL_CALL
Description: Number of SDCCH transactions ended because of a failure in the A inter-face during a call attempt.
Impact: Call cleared
Reason for the impact: External / A interface. There may be a failure in the SDCCH signalling connection.
Updated: When an SDCCH transaction ends because of signalling problems in the A interface during a call attempt and the RRM releases the SDCCH.
This counter is updated in call phases 1-8 only.
See figure SDCCH assignment failure.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001079 Network element name: SDCCH A IF FAIL SOURCE
Version: 4.1 NetAct name: SDCCH_A_IF_FAIL_OLD
Description: Number of SDCCH transactions ended because of a failure in the A inter-face on the source channel during an SDCCH-SDCCH or SDCCH-TCH HO.
Impact: HO failure and call cleared
Reason for the impact: External / A interface. There may be a failure in the SDCCH signalling connection.
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3.81 001080 / SDCCH A IF FAIL TARGET
Updated: When an SDCCH transaction ends because of signalling problems in the A interface during an SDCCH-SDCCH or SDCCH-TCH HO and the RRM releases the SDCCH.
This counter is updated in call phases 9-11 only.
See figure Unsuccessful SDCCH external handover, timer expires while waiting for CLEAR_COMMAND message.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC1003: SDCCH Handover
BSC1004: Directed Retry
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001080 Network element name: SDCCH A IF FAIL TARGET
Version: 4.1 NetAct name: SDCCH_A_IF_FAIL_NEW
Description: Number of SDCCH transactions ended because of a failure in the A inter-face on the target channel during an SDCCH HO.
Impact: HO failure and call cleared
Reason for the impact: External / A interface. There may be a failure in the SDCCH signalling connection.
Updated: When an SDCCH transaction ends because of signalling problems in the A interface during an SDCCH HO and the RRM releases the SDCCH.
This counter is updated in call phases 12-14 only.
See figure Unsuccessful SDCCH external handover, timer expires while waiting for CLEAR_COMMAND message
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
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3.82 001081 / TCH ACT FAIL CALL
3.83 001082 / NOT RELEVANT
Related to feature:
BSC1003: SDCCH Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001081 Network element name: TCH ACT FAIL CALL
Version: 4.1 NetAct name: TCH_ACT_FAIL_CALL
Description: Number of TCH transactions that are ended because of a failure to activate a channel during a call attempt.
Impact: Call cleared
Updated: When a TCH transaction ends because of a failure to activate a channel in the BTS and the RRM releases the TCH.
This counter is updated in call phases 1-8 only.
See figure Unsuccessful TCH activation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001082 Network element name: NOT RELEVANT
Version: 4.0 NetAct name:
Description: This counter is not in use
Updated: This counter is not updated
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
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3.84 001083 / TCH ACT FAIL TARGET
3.85 001084 / TCH ABIS FAIL CALL
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001083 Network element name: TCH ACT FAIL TARGET
Version: 4.1 NetAct name: TCH_ACT_FAIL_NEW
Description: Number of TCH transactions that are ended because of a failure to activate the target channel during an SDCCH-TCH or TCH-TCH HO.
Impact: HO failure and possibly call cleared
Reason for the impact: The RRM receives the CHANNEL_ACTIVATION_NACK message.
Updated: When a TCH transaction ends because of a failure to activate the target channel during a TCH HO attempt and the RRM releases the TCH.
This counter is updated in call phases 12-14 only.
See figure Unsuccessful internal inter-cell handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001084 Network element name: TCH ABIS FAIL CALL
Version: 4.1 NetAct name: TCH_ABIS_FAIL_CALL
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3.86 001085 / TCH ABIS FAIL SOURCE
Description: Number of TCH transactions ended because of a failure in the Abis inter-face during a call in progress.
Impact: Call cleared
Reason for the impact: External / Abis Interface
The signalling problems may include missing acknowledgement of channel activation, missing indication of call establishment, receipt of an error indication, corrupted mes-sages, missing measurement results from the BTS, excessive timing advance or some internal reasons. These failures can also contain situations when the timer T3109 expires in a BSC in call release phase while waiting for the Release Indication. The MS subscriber does not see these failures caused by the T3109 expiry as real drop calls.
Updated: When a TCH transaction ends because of signalling problems in the Abis interface and the RRM releases the TCH.
This counter is updated in call phases 1-8 or 15 only.
See figures: - Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - TRX or TSL is blocked with different causes during a call - Dropped call between ASSIGNMENT COMPLETE and RF CHANNEL RELEASE ACK
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001085 Network element name: TCH ABIS FAIL SOURCE
Version: 4.1 NetAct name: TCH_ABIS_FAIL_OLD
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3.87 001086 / TCH ABIS FAIL NEW
Description: Number of TCH transactions ended because of a failure in the Abis inter-face on the source channel during a TCH HO.
Impact: HO failure and call cleared
Reason for the impact: External / Abis Interface
Updated: When a TCH transaction ends because of a failure in the Abis interface on the source channel during a TCH HO and the RRM releases the TCH.
This counter is updated in call phases 9-11 only.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001086 Network element name: TCH ABIS FAIL NEW
Version: 4.1 NetAct name: TCH_ABIS_FAIL_NEW
Description: Number of TCH transactions ended because of a failure in the Abis inter-face on the new channel during a TCH handover.
Impact: HO failure and possibly call cleared
Reason for the impact: External / Abis Interface
Updated: When a TCH transaction ends because of a failure in the Abis interface on the new channel during a TCH handover and the RRM releases the TCH.
This counter is updated in call phases 12-14 only.
See figure Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
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3.88 001087 / TCH A IF FAIL CALL
3.89 001088 / TCH A IF FAIL SOURCE
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001087 Network element name: TCH A IF FAIL CALL
Version: 4.1 NetAct name: TCH_A_IF_FAIL_CALL
Description: Number of TCH transactions ended because of a failure in the A interface during a call in progress.
Impact: Call cleared
Reason for the impact: External / A interface. The signalling problems may include the CLEAR_COMMAND message from the MSC during the call setup phase before the MSC receives an indication of the completion of the assignment from the MS and the ABNORMAL_CLEAR_ RECEIVED_DUE_TO_A_INTERFACE message (reset circuit, SCCP cleared by RLSD).
Updated: When a TCH transaction ends because of signalling problems in the A inter-face during a call and the RRM releases the TCH.
This counter is updated in call phases 1-8 or 15 only.
See figure TCH assignment failure, MSC sends CLEAR_COMMAND message.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001088 Network element name: TCH A IF FAIL SOURCE
Version: 4.1 NetAct name: TCH_A_IF_FAIL_OLD
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3.90 001089 / TCH A IF FAIL NEW
Description: Number of TCH transactions ended because of a failure in the A interface on the source channel during a handover attempt.
Impact: HO failure and call cleared
Reason for the impact: External / A interface
Updated: When a TCH transaction ends because of an A interface failure (HO failure) on the source channel during a TCH HO attempt and the RRM releases the TCH.
This counter is updated in the source cell. If the target cell lies within the same BSC, also counter 001015 in the target cell is updated along with this counter.
This counter is also updated if the MS fails to return to the old channel during an inter-BSC handover.
This counter is updated in phases 9-11 only.
See figure Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001015: TRANSACTIONS ENDED DUE TARGET CHANNEL FAIL
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001089 Network element name: TCH A IF FAIL NEW
Version: 4.1 NetAct name: TCH_A_IF_FAIL_NEW
Description: Number of TCH transactions ended because of a failure in the A interface on the new channel during a handover attempt.
Impact: HO failure, the call may possibly be cleared
Reason for the impact: External / A interface
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3.91 001090 / TCH REQ UND OVER
Updated: When a TCH transaction ends because of a failure in the A interface (HO failure) on the new channel during a handover attempt and the RRM releases the TCH.
This counter is updated in call phases 12-14 only.
See figure Unsuccessful external handover, MS sends a handover failure.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S3 Definition updated in release:
Counter ID: 001090 Network element name: TCH REQ UND OVER
Version: 4.1 NetAct name: TCH_REQUEST_UND_OVER
Description: Number of TCH requests for an underlay-overlay HO. Updated only for the normal coverage area.
Counter 001010 TCH REQUEST SUCCESS AND UNSUCCESS is updated along with this counter.
Updated: When the RRM receives a TCH request for an underlay overlay HO.
See figures:- Successful internal intra-cell handover- Internal intra-cell HO, successful TCH queuing- Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed- Internal directed retry- Successful internal inter-cell handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
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3.92 001091 / TCH SEIZ UND OVER
3.93 001092 / TCH REJ REQ UND OVE
Related to feature:
BSS21277: 105km Extended Cell CS
BSC4016: Intelligent Underlay-Overlay
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S4 Definition updated in release:S14
Counter ID: 001091 Network element name: TCH SEIZ UND OVER
Version: 4.1 NetAct name: TCH_SEIZ_UND_OVER
Description: Number of TCH seizures for an underlay-overlay HO.
Counter 001008 SUCCESS TCH SEIZURE FOR HO is updated along with this counter.
Updated: When the RRM allocates a TCH as a response to a TCH request for an underlay-overlay HO. Updated only for the normal coverage area.
See figures:- Successful internal intra-cell handover- Internal intra-cell HO, successful TCH queuing- Successful internal inter-cell handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001008: SUCCESS TCH SEIZURE FOR HO
Operability class:
Related to feature:
BSS21277: 105km Extended Cell CS
BSC4016: Intelligent Underlay-Overlay
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S4 Definition updated in release:S14
Counter ID: 001092 Network element name: TCH REJ REQ UND OVE
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3.94 001093 / SUCC MOC TEST CALL
Version: 4.1 NetAct name: TCH_REJ_UND_OVER
Description: Number of TCH requests for an underlay-overlay HO rejected because of a lack of resources.
Counter 001011 TCH REQUEST REJECTED DUE TO LACK is updated along with this counter.
Updated: When the RRM rejects a TCH request for an underlay-overlay HO because of lack of resources. Updated only for the normal coverage area.
See figure Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
Operability class:
Related to feature:
BSS21277: 105km Extended Cell CS
BSC4016: Intelligent Underlay-Overlay
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S4 Definition updated in release:S14
Counter ID: 001093 Network element name: SUCC MOC TEST CALL
Version: 4.0 NetAct name: SUCC_MOC_TEST_CALL
Description: Number of successful MOC test calls during a scheduled test.
Updated: When the RRM receives a message from the BTTEST.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC4531: BTS Testing: Scheduled MOC
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
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3.95 001094 / FAIL MOC TEST CALL
3.96 001095 / PRI SUBSCR TCH REQ
Used from release: S4 Definition updated in release:
Counter ID: 001094 Network element name: FAIL MOC TEST CALL
Version: 4.0 NetAct name: FAIL_MOC_TEST_CALL
Description: Number of unsuccessful MOC test calls during a scheduled test.
Updated: When the RRM receives a message from the BTTEST.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSC4531: BTS Testing: Scheduled MOC
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S4 Definition updated in release:
Counter ID: 001095 Network element name: PRI SUBSCR TCH REQ
Version: 4.0 NetAct name: TCH_PRI_SUBSCR_REQ
Description: Number of TCH requests of the type priority subscriber.
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request either in a call or HO attempt and the MS priority level in the priority information element (PIE) indicates that the MS is a priority subscriber.
See figures:- Basic call with priority subscriber- Unsuccessful forced release- Unsuccessful forced release with external handover- Unsuccessful forced handover- Unsuccessful forced handover with external handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
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3.97 001096 / PRI SUBSCR SUCC TCH SEIZ
3.98 001097 / NO PRI SUBSCR REFUSED TCH REQ
Operability class:
Related to feature:
BSS5190: Enhanced Trunk Reservation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001096 Network element name: PRI SUBSCR SUCC TCH SEIZ
Version: 4.0 NetAct name: TCH_PRI_SUBSCR_SUCC_SEIZ
Description: Number of successful TCH seizures of the type priority subscriber.
Counter 001008 or 001009 is updated along with this counter.
Updated: When the RRM allocates a TCH as a response to a TCH request in either a call or HO attempt and the MS priority level in the priority information element (PIE) indicates that the MS is a priority subscriber.
See figure Basic call with priority subscriber.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001008: SUCCESS TCH SEIZURE FOR HO
001009: SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT
Operability class:
Related to feature:
BSS5190: Enhanced Trunk Reservation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001097 Network element name: NO PRI SUBSCR REFUSED TCH REQ
Version: 4.0 NetAct name: TCH_NO_PRI_SUBSCR_REFUSED_REQ
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3.99 001098 / TCH SEIZ ATT DUE SDCCH CON
Description: Number of TCH requests of the type non-priority subscriber that are rejected because there are no resources available to subscribers other than priority subscribers.
Counter 001042 is updated along with this counter.
Updated: When the RRM rejects a TCH request because of no resources available to subscribers other than priority subscribers.
See figure Unsuccessful trunk reservation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001042: TRUNK RES INVOC RES REFUSED
Operability class:
Related to feature:
BSS5190: Enhanced Trunk Reservation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001098 Network element name: TCH SEIZ ATT DUE SDCCH CON
Version: 4.0 NetAct name: TCH_SEIZ_ATT_DUE_SDCCH_CON
Description: Number of attempts to seize a TCH because of SDCCH congestion.
Counters 001010 and 001043 are updated along with this counter.
Updated: When the RRM attempts to allocate a TCH as a response to a request for an SDCCH seizure during SDCCH congestion. The RRM does this if the TCH alloca-tion (=FACCH setup) is allowed in the message carrying the request for the SDCCH seizure.
See figures: - FACCH call setup due to SDCCH congestion with counters - FACCH call setup because of SDCCH congestion
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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3.100 001099 / TCH SEIZ DUE SDCCH CON
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
001043: TCH REQ FACCH CALLSET
Operability class:
Related to feature:
BSS5290: FACCH Call Setup due to SDCCH Congestion
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001099 Network element name: TCH SEIZ DUE SDCCH CON
Version: 4.0 NetAct name: TCH_SEIZ_DUE_SDCCH_CON
Description: Number of successful TCH seizures because of congestion on the SDCCH.
This counter is updated along with counter 001044.
Updated: When the RRM allocates a TCH as a response to a request for SDCCH seizure during congestion on the SDCCHs. The RRM allocates a TCH if the TCH allo-cation (=FACCH setup) is allowed in the message carrying the request for the SDCCH seizure.
See figure FACCH call setup due to SDCCH congestion with counters.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001044: TCH SEIZ FACCH CALL SET
Operability class:
Related to feature:
BSS5290: FACCH Call Setup due to SDCCH Congestion
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
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3.101 001100 / TRUNK TCH REJECTED FR REQ
3.102 001101 / TRUNK TCH REJECTED HR REQ
Counter ID: 001100 Network element name: TRUNK TCH REJECTED FR REQ
Version: 4.0 NetAct name: TCH_TRUNK_REFUSED_FR_REQ
Description: Number of requests for trunk reservation function that result in the rejec-tion of TCH allocation when FR or preferred FR TCH has been requested.
Counter 001042 is updated along with this counter.
Updated: When the RRM denies access by applying the trunk reservation function and FR or preferred FR TCH has been requested.
See figure Unsuccessful trunk reservation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001042: TRUNK RES INVOC RES REFUSED
Operability class:
Related to feature:
BSS5190: Enhanced Trunk Reservation
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001101 Network element name: TRUNK TCH REJECTED HR REQ
Version: 4.0 NetAct name: TCH_TRUNK_REFUSED_HR_REQ
Description: Number of requests for trunk reservation function that result in rejection of TCH allocation when HR or preferred HR TCH has been requested.
Counter 001042 is updated along with this counter.
Updated: When the RRM denies access by applying the trunk reservation function and HR or preferred HR TCH has been requested.
See figure Unsuccessful trunk reservation.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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3.103 001102 / FULL TCH REQ SUCC UNSUCC
Dependencies with other counters:
001042: TRUNK RES INVOC RES REFUSED
Operability class:
Related to feature:
BSS5190: Enhanced Trunk Reservation
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001102 Network element name: FULL TCH REQ SUCC UNSUCC
Version: 4.0 NetAct name: TCH_FULL_REQ_SUCC_UNSUCC
Description: Number of requests for FR TCH (both successful and unsuccessful).
Counter 001010 is updated along with this counter.
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3.104 001103 / HALF TCH REQ SUCC UNSUCC
Updated: When the RRM receives a TCH request either in a call or in a handover attempt and FR TCH channel is requested.
NOTE! This counter is updated when the channel rate of the requested TCH is defined to be FR only; the type of the TCH may be limited either by an assignment request or a handover request from the A interface, or it may be because of the BSC restricting the selection of channel type in TCH allocation.
See figures: - Basic call with counters - Basic call with priority subscriber - Basic call, no free TCH and queuing or directed retry is not allowed - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - Unsuccessful trunk reservation - Successful internal intra-cell handover - Internal intra-cell HO, successful TCH queuing - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Internal directed retry - Successful internal inter-cell handover - Successful external handover, target - Successful forced release - Unsuccessful forced release - Unsuccessful forced release with external handover - Successful forced handover - Unsuccessful forced handover - Unsuccessful forced handover with external handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001103 Network element name: HALF TCH REQ SUCC UNSUCC
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Version: 4.0 NetAct name: TCH_HALF_REQ_SUCC_UNSUCC
Description: Number of requests for HR TCH requests (both successful and unsuc-cessful).
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request either in a call or HO attempt and HR TCH channel is requested. NOTE! This counter is updated when the channel rate of the requested TCH is defined to be HR only; the type of the TCH may be limited either by an assignment request or a handover request from the A interface, or it may be because of the BSC restricting the selection of channel type in TCH allocation.
See figures: - Basic call with counters - Basic call with priority subscriber - Basic call, no free TCH and queuing or directed retry is not allowed - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - Unsuccessful trunk reservation - Successful internal intra-cell handover - Internal intra-cell HO, successful TCH queuing - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Internal directed retry - Successful internal inter-cell handover - Successful external handover, target - Successful forced release - Unsuccessful forced release - Unsuccessful forced release with external handover - Successful forced handover - Unsuccessful forced handover - Unsuccessful forced handover with external handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
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3.105 001104 / TCH REQ FULL PREFERRED
Counter ID: 001104 Network element name: TCH REQ FULL PREFERRED
Version: 4.0 NetAct name: TCH_FULL_REQ_PREFERRED
Description: Number of TCH requests with FR preferred (both successful and unsuc-cessful).
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request either in a call or HO attempt and FR or HR TCH channel is requested alternatively with FR preferred.
NOTE! The preferred channel rate can be defined either by an assignment request or HO request received from the A interface or by software which is activated on the BSC for controlling the selection of the channel type in TCH allocation. In the latter case the preferred channel type can be quite the opposite to the one initially set by the MSC.
See figures: - Basic call with counters - Basic call with priority subscriber - Basic call, no free TCH and queuing or directed retry is not allowed - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful trunk reservation - Successful internal intra-cell handover - Internal intra-cell HO, successful TCH queuing - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Internal directed retry - Successful internal inter-cell handover - Successful external handover, target - Successful forced release - Unsuccessful forced release - Unsuccessful forced release with external handover - Successful forced handover - Unsuccessful forced handover - Unsuccessful forced handover with external handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
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Counters of Traffic Measurement
3.106 001105 / TCH REQ HALF PREFERRED
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001105 Network element name: TCH REQ HALF PREFERRED
Version: 4.0 NetAct name: TCH_HALF_REQ_PREFERRED
Description: Number of TCH requests with HR preferred (both successful and unsuc-cessful).
Counter 001010 is updated along with this counter.
Updated: When the RRM receives a TCH request either in a call or HO attempt and FR or HR TCH channel is requested alternatively with HR preferred.
NOTE! The preferred channel rate can be defined either by assignment request or HO request received from the A interface or by softwares which are activated on the BSC for controlling the selection of the channel type in TCH allocation. In the latter case the preferred channel type can be quite the opposite to the one initially set by the MSC.
See figures: - Basic call with counters - Basic call with priority subscriber - Basic call, no free TCH and queuing or directed retry is not allowed - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful trunk reservation - Successful internal intra-cell handover - Internal intra-cell HO, successful TCH queuing - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Internal directed retry - Successful internal inter-cell handover - Successful external handover, target - Successful forced release - Unsuccessful forced release - Unsuccessful forced release with external handover - Successful forced handover - Unsuccessful forced handover - Unsuccessful forced handover with external handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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3.107 001106 / SUCC FULL TCH SEIZ
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001106 Network element name: SUCC FULL TCH SEIZ
Version: 4.0 NetAct name: TCH_FULL_SUCC_SEIZ
Description: Number of successful FR TCH seizures.
Either counter 001008 or counter 001009 is updated along with this counter.
Updated: When the RRM allocates an FR TCH as a response to a TCH request.
See figures: - Basic call with counters - Basic call with priority subscriber - Successful TCH queuing - Successful internal intra-cell handover - Internal intra-cell HO, successful TCH queuing - Successful internal inter-cell handover - Successful external handover, target - Successful forced release - Successful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001008: SUCCESS TCH SEIZURE FOR HO
001009: SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
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3.108 001107 / SUCC HALF TCH SEIZ
3.109 001108 / FULL TCH SEIZ SPEECH VER 1
Used from release: S5 Definition updated in release:
Counter ID: 001107 Network element name: SUCC HALF TCH SEIZ
Version: 4.0 NetAct name: TCH_HALF_SUCC_SEIZ
Description: Number of successful HR TCH seizures.
Either counter 001008 or counter 001009 is updated along with this counter.
Updated: When the RRM allocates an HR TCH as a response to a TCH request.
See figures: - Basic call with counters - Basic call with priority subscriber - Successful TCH queuing - Successful internal intra-cell handover - Internal intra-cell HO, successful TCH queuing - Successful internal inter-cell handover - Successful external handover, target - Successful forced release - Successful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001008: SUCCESS TCH SEIZURE FOR HO
001009: SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001108 Network element name: FULL TCH SEIZ SPEECH VER 1
Version: 4.0 NetAct name: TCH_FULL_SEIZ_SPEECH_VER1
Description: Number of successful FR TCH seizures when speech FR version 1 is in use.
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3.110 001109 / FULL TCH SEIZ SPEECH VER 2
Updated: When an FR TCH allocated for speech is released and the FR codec version 1 is in use.
See figures: - Normal release - Unsuccessful TCH activation - Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - TCH assignment failure - TCH assignment failure, MSC sends CLEAR_COMMAND message - CONNECTION_FAILURE message with cause transcoder_failure during a call - TRX or TSL is blocked with different causes during a call - Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message- Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel- Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared - Unsuccessful internal inter-cell handover - Successful external handover, source - Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message - Unsuccessful external handover, MS sends a handover failure - Successful forced release - Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message - Dropped call between ASSIGNMENT COMPLETE and DISCONNECT- Dropped call between ASSIGNMENT COMPLETE and RF CHANNEL RELEASE ACK
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001109 Network element name: FULL TCH SEIZ SPEECH VER 2
Version: 4.0 NetAct name: TCH_FULL_SEIZ_SPEECH_VER2
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3.111 001110 / FULL TCH SEIZ SPEECH VER 3
Description: Number of successful FR TCH seizures when speech FR version 2 is in use.
Updated: When an FR TCH allocated for speech is released and the FR codec version 2 is in use.
See figures: - Normal release - Unsuccessful TCH activation - Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message- TCH assignment failure - TCH assignment failure, MSC sends CLEAR_COMMAND message - CONNECTION_FAILURE message with cause transcoder_failure during a call - TRX or TSL is blocked with different causes during a call - Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message- Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel- Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared- Unsuccessful internal inter-cell handover - Successful external handover, source - Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message- Unsuccessful external handover, MS sends a handover failure - Successful forced release - Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message - Dropped call between ASSIGNMENT COMPLETE and DISCONNECT- Dropped call between ASSIGNMENT COMPLETE and RF CHANNEL RELEASE ACK
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001110 Network element name: FULL TCH SEIZ SPEECH VER 3
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Version: 4.0 NetAct name: TCH_FULL_SEIZ_SPEECH_VER3
Description: Number of successful FR TCH seizures when speech FR version 3 is in use.
Updated: When an FR TCH allocated for speech is released and the FR codec version 3 is in use.
See figures: - Normal release - Unsuccessful TCH activation - Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message- TCH assignment failure - TCH assignment failure, MSC sends CLEAR_COMMAND message- CONNECTION_FAILURE message with cause transcoder_failure during a call - TRX or TSL is blocked with different causes during a call - Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel- Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared- Unsuccessful internal inter-cell handover - Successful external handover, source - Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message- Unsuccessful external handover, MS sends a handover failure - Successful forced release - Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message- Dropped call between ASSIGNMENT COMPLETE and DISCONNECT- Dropped call between ASSIGNMENT COMPLETE and RF CHANNEL RELEASE ACK
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
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3.112 001111 / HALF TCH SEIZ SPEECH VER 1
Counter ID: 001111 Network element name: HALF TCH SEIZ SPEECH VER 1
Version: 4.0 NetAct name: TCH_HALF_SEIZ_SPEECH_VER1
Description: Number of successful HR TCH seizures when speech FR version 1 is in use.
Updated: When an HR TCH allocated for speech is released and the HR codec version 1 is in use.
See figures: - Normal release - Unsuccessful TCH activation - Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - TCH assignment failure - TCH assignment failure, MSC sends CLEAR_COMMAND message - CONNECTION_FAILURE message with cause transcoder_failure during a call - TRX or TSL is blocked with different causes during a call - Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel - Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared - Unsuccessful internal inter-cell handover - Successful external handover, source - Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message - Unsuccessful external handover, MS sends a handover failure - Successful forced release - Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message - Dropped call between ASSIGNMENT COMPLETE and DISCONNECT - Dropped call between ASSIGNMENT COMPLETE and RF CHANNEL RELEASE ACK
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
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3.113 001112 / HALF TCH SEIZ SPEECH VER 2
3.114 001113 / HALF TCH SEIZ SPEECH VER 3
Counter ID: 001112 Network element name: HALF TCH SEIZ SPEECH VER 2
Version: 4.1 NetAct name: TCH_HALF_SEIZ_SPEECH_VER2
Description: This counter is not in use.
Updated: This counter is not updated.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:S15
Counter ID: 001113 Network element name: HALF TCH SEIZ SPEECH VER 3
Version: 4.0 NetAct name: TCH_HALF_SEIZ_SPEECH_VER3
Description: Number of successful HR TCH seizures when speech FR version 3 is in use.
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3.115 001114 / FULL TCH SEIZ NORM ASSIGNMENT
Updated: When an HR TCH allocated for speech is released and the HR codec version 3 is in use.
See figures: - Normal release - Unsuccessful TCH activation - Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - TCH assignment failure - TCH assignment failure, MSC sends CLEAR_COMMAND message - CONNECTION_FAILURE message with cause transcoder_failure during a call - TRX or TSL is blocked with different causes during a call - Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel - Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared - Unsuccessful internal inter-cell handover - Successful external handover, source - Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message - Unsuccessful external handover, MS sends a handover failure - Successful forced release - Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message - Dropped call between ASSIGNMENT COMPLETE and DISCONNECT - Dropped call between ASSIGNMENT COMPLETE and RF CHANNEL RELEASE ACK
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001114 Network element name: FULL TCH SEIZ NORM ASSIGNMENT
Version: 4.0 NetAct name: TCH_FULL_SEIZ_NORM_ASS
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3.116 001115 / HALF TCH SEIZ NORM ASSIGNMENT
Description: Number of successful FR TCH seizures for a normal assignment.
Counter 001009 is updated along with this counter.
Updated: When the RRM allocates an FR TCH as a response to a TCH request in a call attempt.
See figures:- Basic call with counters- Basic call with priority subscriber- Successful TCH queuing- Successful forced release- Successful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001009: SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001115 Network element name: HALF TCH SEIZ NORM ASSIGNMENT
Version: 4.0 NetAct name: TCH_HALF_SEIZ_NORM_ASS
Description: Number of successful HR TCH seizures for a normal assignment.
Counter 001009 is updated along with this counter.
Updated: When the RRM allocates an HR TCH as a response to a TCH request in a call attempt.
See figures:- Basic call with counters- Basic call with priority subscriber- Successful TCH queuing- Successful forced release- Successful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
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3.117 001116 / FULL TCH SEIZ INT HO CH RATE
Unit: Integer number Range: Example values:
Dependencies with other counters:
001009: SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001116 Network element name: FULL TCH SEIZ INT HO CH RATE
Version: 4.0 NetAct name: TCH_FULL_SEIZ_INT_HO_CH_RATE
Description: Number of successful FR TCH seizures for an internal HO when the channel rate changes.
Counters 001008 and 001106 are updated along with this counter.
Updated: When the RRM allocates an FR TCH for an internal HO as a response to a TCH request and the channel rate is changed from HR to FR.
See figures:- Successful internal intra-cell handover- Internal intra-cell HO, successful TCH queuing- Successful internal inter-cell handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001008: SUCCESS TCH SEIZURE FOR HO
001106: SUCC FULL TCH SEIZ
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
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3.118 001117 / HALF TCH SEIZ INT HO CH RATE
3.119 001118 / REJ TCH REQ DUE LACK FR
Counter ID: 001117 Network element name: HALF TCH SEIZ INT HO CH RATE
Version: 4.0 NetAct name: TCH_HALF_SEIZ_INT_HO_CH_RATE
Description: Number of successful HR TCH seizures for an internal HO when the channel rate changes.
Counters 001008 and 001107 are updated along with this counter.
Updated: When the RRM allocates an HR TCH for an internal HO as a response to a TCH request and the channel rate is changed from FR to HR.
See figures:- Successful internal intra-cell handover- Internal intra-cell HO, successful TCH queuing- Successful internal inter-cell handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001008: SUCCESS TCH SEIZURE FOR HO
001107: SUCC HALF TCH SEIZ
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001118 Network element name: REJ TCH REQ DUE LACK FR
Version: 4.0 NetAct name: TCH_REJ_REQ_DUE_LACK_FR
Description: Number of TCH requests that are rejected because of a lack of resources when FR or preferred FR TCH is requested.
Counter 001011 is updated along with this counter.
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3.120 001119 / REJ TCH REQ DUE LACK HR
Updated: When no TCHs are available when requested from the RRM either in a call or HO attempt and either FR or preferred FR TCH was requested. The counter may be updated immediately after the TCH request or, in case of queuing, after the queuing timer expires.
See figures: - Basic call, no free TCH and queuing or directed retry is not allowed - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Unsuccessful forced release - Unsuccessful forced release with external handover - Unsuccessful forced handover - Unsuccessful forced handover with external handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001119 Network element name: REJ TCH REQ DUE LACK HR
Version: 4.0 NetAct name: TCH_REJ_REQ_DUE_LACK_HR
Description: Number of TCH requests that are rejected because of a lack of resources, when HR or preferred HR TCH is requested.
Counter 001011 is updated along with this counter.
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3.121 001120 / FULL TCH REJ DUE HR TRAF
Updated: When no TCHs are available when requested from the RRM either in a call or HO attempt and either HR or preferred HR TCH was requested. The counter may be updated immediately after the TCH request or, in case of queuing after the queuing, timer expires.
See figures: - Basic call, no free TCH and queuing or directed retry is not allowed - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Unsuccessful forced release - Unsuccessful forced release with external handover - Unsuccessful forced handover - Unsuccessful forced handover with external handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001120 Network element name: FULL TCH REJ DUE HR TRAF
Version: 4.0 NetAct name: TCH_FULL_REJ_DUE_HR_TRAF
Description: Number of requests for FR TCHs that are rejected because of HR traffic, whether queuing occurred or not.
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3.122 001121 / HALF TCH REJ DUE FR TRAF
Updated: When no FR TCH is available in a situation where HR calls are being main-tained in DR TSLs and there are free HR TCHs among the DR or permanent HR resources for at least two HR calls.
NOTE! The counter is incremented on receipt of the request for the FR TCH, regard-less of whether the request is set in the queue, pre-empted, subjected to directed retry or some other procedure of the kind.
See figures: - FACCH call setup due to SDCCH congestion, no free TCH channel - Basic call, no free TCH and queuing or directed retry is not allowed - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - Unsuccessful trunk reservation - Internal intra-cell HO, successful TCH queuing - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Successful forced release - Unsuccessful forced release - Unsuccessful forced release with external handover - Successful forced handover - Unsuccessful forced handover - Unsuccessful forced handover with external handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001121 Network element name: HALF TCH REJ DUE FR TRAF
Version: 4.0 NetAct name: TCH_HALF_REJ_DUE_FR_TRAF
Description: Number of requests for HR TCHs that are rejected because of FR traffic, whether queuing occurred or not.
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3.123 001122 / TCH REJ DUE REQ CH A IF CRC
Updated: When no HR TCH is available in a situation where a FR call is being main-tained in a DR TSL and at the same time there is a permanent FR type TSL free.
NOTE! The counter is incremented on receipt of the request for HR TCH, regardless of whether the request is set in the queue, pre-empted, subjected to directed retry or some other procedure of the kind
See figures: - FACCH call setup due to SDCCH congestion, no free TCH channel - Basic call, no free TCH and queuing or directed retry is not allowed - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - Unsuccessful trunk reservation - Internal intra-cell HO, successful TCH queuing - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Successful forced release - Unsuccessful forced release - Unsuccessful forced release with external handover - Successful forced handover - Unsuccessful forced handover - Unsuccessful forced handover with external handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001122 Network element name: TCH REJ DUE REQ CH A IF CRC
Version: 4.0 NetAct name: TCH_REJ_DUE_REQ_CH_A_IF_CRC
Description: Number of requests for TCHs that are rejected because of a mismatch between the types of the requested channel and the A interface circuit, whether queuing occurred or not.
Counter 001011 and counter 001118 or 001119 are updated along with this counter.
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3.124 001123 / FULL TCH REQ FACCH CALL
Updated: When the RRM changes the A interface circuit pool before TCH allocation.
See figure TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
001118: REJ TCH REQ DUE LACK FR
001119: REJ TCH REQ DUE LACK HR
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001123 Network element name: FULL TCH REQ FACCH CALL
Version: 4.0 NetAct name: TCH_FULL_REQ_FAST_CALL
Description: Number of requests for FR TCH in FACCH call setup during SDCCH con-gestion (both successful and unsuccessful).
Counters 001010, 001043 and 001098 are updated along with this counter.
Updated: When the RRM receives a request for SDCCH allocation but no idle SDCCHs exist and TCH allocation (=FACCH call setup) is allowed in the request which also indicates that the TCH rate should be FR.
See figures: - FACCH call setup due to SDCCH congestion with counters - FACCH call setup due to SDCCH congestion, no free TCH channel
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
001043: TCH REQ FACCH CALLSET
001098: TCH SEIZ ATT DUE SDCCH CON
Operability class:
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3.125 001124 / TCH FACCH CALL CH RATE NOT DEF
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001124 Network element name: TCH FACCH CALL CH RATE NOT DEF
Version: 4.0 NetAct name: TCH_FAST_CALL_CH_RATE_NOT_DET
Description: Number of requests for TCHs in FACCH call setup during SDCCH con-gestion when the TCH rate is not defined to be uniquely FR or HR (both successful and unsuccessful).
Counters 001010, 001043 and 001098 are updated along with this counter.
Updated: When the RRM receives a request for SDCCH allocation but no idle SDCCHs exist and TCH allocation (=FACCH call setup) is allowed in the request which also indicates that either of the two possible channel rates is accepted to be allocated.
See figures: - FACCH call setup due to SDCCH congestion with counters - FACCH call setup due to SDCCH congestion, no free TCH channel
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
001043: TCH REQ FACCH CALLSET
001098: TCH SEIZ ATT DUE SDCCH CON
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
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3.126 001125 / SUCC FULL TCH SEIZ FACCH CALL
3.127 001126 / SUCC HALF TCH SEIZ FACCH CALL
Counter ID: 001125 Network element name: SUCC FULL TCH SEIZ FACCH CALL
Version: 4.0 NetAct name: TCH_SUCC_FULL_SEIZ_FAST_CALL
Description: Number of successful FR TCHs seizures for a FACCH call setup.
Counter 001044 is updated along with this counter.
Updated: When the RRM allocates an FR TCH as a response to an SDCCH request as part of the FACCH call setup during SDCCH congestion.
See figure FACCH call setup due to SDCCH congestion with counters.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001044: TCH SEIZ FACCH CALL SET
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001126 Network element name: SUCC HALF TCH SEIZ FACCH CALL
Version: 4.0 NetAct name: TCH_SUCC_HALF_SEIZ_FAST_CALL
Description: Number of successful HR TCHs seizures for a FACCH call setup.
Counter 001044 is updated along with this counter.
Updated: When the RRM allocates an HR TCH as a response to an SDCCH request as part of the FACCH call setup during SDCCH congestion.
See figure FACCH call setup due to SDCCH congestion with counters.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001044: TCH SEIZ FACCH CALL SET
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3.128 001127 / ENDED DUE TRANSC FR RATE 1
3.129 001128 / ENDED DUE TRANSC FR RATE 2
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001127 Network element name: ENDED DUE TRANSC FR RATE 1
Version: 4.0 NetAct name: TCH_ENDED_DUE_TRANSC_FR_RATE1
Description: Number of radio TCH transactions that are ended because of a transcoder failure when speech FR version 1 is in use.
Updated: When one of the transcoder failure counters 001029, 001030 or 001031 is updated and the FR codec version 1 is in use.
See figures: - CONNECTION_FAILURE message with cause transcoder_failure during a call - Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001128 Network element name: ENDED DUE TRANSC FR RATE 2
Version: 4.0 NetAct name: TCH_ENDED_DUE_TRANSC_FR_RATE2
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3.130 001129 / ENDED DUE TRANSC FR RATE 3
Description: Number of radio TCH transactions that are ended because of a transcoder failure when speech FR version 2 is in use.
Updated: When one of the transcoder failure counters 001029, 001030 or 001031 is updated and the FR codec version 2 is in use.
See figures: - CONNECTION_FAILURE message with cause transcoder_failure during a call - Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001129 Network element name: ENDED DUE TRANSC FR RATE 3
Version: 4.0 NetAct name: TCH_ENDED_DUE_TRANSC_FR_RATE3
Description: Number of radio TCH transactions that are ended because of a transcoder failure when speech FR version 3 is in use.
Updated: When one of the transcoder failure counters 001029, 001030 or 001031 is updated and the FR codec version 3 is in use.
See figures: - CONNECTION_FAILURE message with cause transcoder_failure during a call - Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
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3.131 001130 / ENDED DUE TRANSC HR RATE 1
3.132 001131 / ENDED DUE TRANSC HR RATE 2
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001130 Network element name: ENDED DUE TRANSC HR RATE 1
Version: 4.0 NetAct name: TCH_ENDED_DUE_TRANSC_HR_RATE1
Description: Number of radio TCH transactions that are ended because of a transcoder failure when speech HR version 1 is in use.
Updated: When one of the transcoder failure counters 001029, 001030 or 001031 is updated and the HR codec version 1 is in use.
See figures: - CONNECTION_FAILURE message with cause transcoder_failure during a call - Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001131 Network element name: ENDED DUE TRANSC HR RATE 2
Version: 4.0 NetAct name: TCH_ENDED_DUE_TRANSC_HR_RATE2
Description: Number of radio TCH transactions that are ended because of a transcoder failure when speech HR version 2 is in use.
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3.133 001132 / ENDED DUE TRANSC HR RATE 3
Updated: When one of the transcoder failure counters 001029, 001030 or 001031 is updated and the HR codec version 2 is in use.
See figures: - CONNECTION_FAILURE message with cause transcoder_failure during a call - Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001132 Network element name: ENDED DUE TRANSC HR RATE 3
Version: 4.0 NetAct name: TCH_ENDED_DUE_TRANSC_HR_RATE3
Description: Number of radio TCH transactions that are ended because of a transcoder failure when speech HR version 3 is in use.
Updated: When one of the transcoder failure counters 001029, 001030 or 001031 is updated and the HR codec version 3 is in use.
See figures:- CONNECTION_FAILURE message with cause transcoder_failure during a call- Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
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3.134 001133 / FULL TCH TR FAIL
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001133 Network element name: FULL TCH TR FAIL
Version: 4.0 NetAct name: TCH_FULL_TR_FAIL
Description: Total number of FR TCH transaction failures.
Updated: When an FR TCH transaction ends because of any abnormal reason, that is, some specific failure counter has been updated, and the RRM releases the FR TCH.
See figures: - Unsuccessful TCH activation - Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - TCH assignment failure - TCH assignment failure, MSC sends CLEAR_COMMAND message - CONNECTION_FAILURE message with cause transcoder_failure during a call - TRX or TSL is blocked with different causes during a call - Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel - Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared - Unsuccessful internal inter-cell handover - Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message - Unsuccessful external handover, MS sends a handover failure - Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
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3.135 001134 / HALF TCH TR FAIL
3.136 001135 / SDCCH SEIZ ATT FOR MOC
Counter ID: 001134 Network element name: HALF TCH TR FAIL
Version: 4.0 NetAct name: TCH_HALF_TR_FAIL
Description: Total number of HR TCH transaction failures.
Updated: When an HR TCH transaction ends because of any abnormal reason, that is, some specific failure counter has been updated, and the RRM releases the HR TCH.
See figures: - Unsuccessful TCH activation - Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - TCH assignment failure - TCH assignment failure, MSC sends CLEAR_COMMAND message - CONNECTION_FAILURE message with cause transcoder_failure during a call - TRX or TSL is blocked with different causes during a call - Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel - Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared - Unsuccessful internal inter-cell handover - Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message - Unsuccessful external handover, MS sends a handover failure - Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS5010: Half Rate
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S5 Definition updated in release:
Counter ID: 001135 Network element name: SDCCH SEIZ ATT FOR MOC
Version: 4.0 NetAct name: SDCCH_MOC_SEIZ_ATT
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3.137 001136 / SDCCH SEIZ ATT FOR MTC
Description: Number of SDCCH seizure attempts for an MOC.
Counter 001000 is updated along with this counter.
Updated: When a request for a SDCCH is received from an MS as the MS needs a channel for an MOC. Note that this counter contains all requests for an SDCCH in originating direction, for example Mobile Originating calls, Location Updates, Supple-mentary Service requests and SMS on SDCCH.
In case of an SMS, this counter is triggered even if the SMS would eventually be sent on TCH instead of SDCCH.
In case of an external handover and handovers after external handover, this counter is not updated. In case of an intra-cell or inter-cell (SDCCH to SDCCH) handover, this counter is updated.
See figures: - Basic call with counters - FACCH call setup due to SDCCH congestion with counters - FACCH call setup due to SDCCH congestion, no free TCH channel - SDCCH congestion, FACCH call setup is not activated - Successful SDCCH internal intra-cell handover - Successful SDCCH internal inter-cell handover - Reconfiguration from TCH to SDCCH
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001000: SEIZURE ATTEMPTS
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:S14
Counter ID: 001136 Network element name: SDCCH SEIZ ATT FOR MTC
Version: 4.0 NetAct name: SDCCH_MTC_SEIZ_ATT
Description: Number of SDCCH seizure attempts for an MTC.
Counter 001000 is updated along with this counter.
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3.138 001137 / TCH SEIZ ATT FOR MOC
Updated: When a request for a SDCCH is received from an MS as the MS needs a channel for an MTC. Note that this counter contains all requests for an SDCCH in ter-minating direction, for example Mobile Terminating calls and SMS on SDCCH.
In case of an SMS, this counter is triggered even if the SMS would eventually be sent on TCH instead of SDCCH.
In case of an external handover and handovers after external handover this counter is not incremented. In case of an intra-cell or inter-cell (SDCCH to SDCCH) handover this counter is updated.
See figures: - Basic call with counters - FACCH call setup due to SDCCH congestion with counters - FACCH call setup due to SDCCH congestion, no free TCH channel - SDCCH congestion, FACCH call setup is not activated - Successful SDCCH internal intra-cell handover - Successful SDCCH internal inter-cell handover - Reconfiguration from TCH to SDCCH
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001000: SEIZURE ATTEMPTS
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:S14
Counter ID: 001137 Network element name: TCH SEIZ ATT FOR MOC
Version: 4.0 NetAct name: TCH_MOC_SEIZ_ATT
Description: Number of TCH seizure attempts during an MOC, in call setup phase before connection acknowledgement. In case of an external handover and handovers after external handover this counter is not incremented. In case of an intra-cell or inter-cell (TCH to TCH or SDCCH to TCH) handover this counter is updated.
Counter 001010 is updated along with this counter.
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3.139 001138 / TCH SEIZ ATT FOR MTC
Updated: When RRM receives requests for a TCH for an MOC. In FACCH call setup RRM attempts to allocate a TCH as a response to a request for an SDCCH seizure during SDCCH congestion.
See figures: - Basic call with counters - Basic call with priority subscriber - FACCH call setup due to SDCCH congestion with counters - FACCH call setup due to SDCCH congestion, no free TCH channel - Basic call, no free TCH and queuing or directed retry is not allowed - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful trunk reservation - Successful internal intra-cell handover - Internal intra-cell HO, successful TCH queuing - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Internal directed retry - Successful internal inter-cell handover - Successful forced release - Unsuccessful forced release - Successful forced handover - Unsuccessful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
Counter ID: 001138 Network element name: TCH SEIZ ATT FOR MTC
Version: 4.0 NetAct name: TCH_MTC_SEIZ_ATT
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Description: Number of TCH seizure attempts during an MTC, in call setup phase before connection acknowledgement. In case of an external handover and handovers after external handover this counter is not incremented. In case of an intra-cell or inter-cell (TCH to TCH or SDCCH to TCH) handover this counter is updated.
Counter 001010 is updated along with this counter.
Updated: When RRM receives requests for a TCH for an MTC. In FACCH call setup RRM attempts to allocate a TCH as a response to a request for an SDCCH seizure during SDCCH congestion.
See figures: - Basic call with counters - Basic call with priority subscriber - FACCH call setup due to SDCCH congestion with counters - FACCH call setup due to SDCCH congestion, no free TCH channel - Basic call, no free TCH and queuing or directed retry is not allowed - Successful TCH queuing - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful trunk reservation - Successful internal intra-cell handover - Internal intra-cell HO, successful TCH queuing - Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed - Internal intra-cell handover, unsuccessful TCH queuing - Internal directed retry - Successful internal inter-cell handover - Successful forced release - Unsuccessful forced release - Successful forced handover - Unsuccessful forced handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
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3.140 001139 / TCH REL BECAUSE OF RADIO FAIL
3.141 001140 / TCH REL DUE TO BSS FAIL
Counter ID: 001139 Network element name: TCH REL BECAUSE OF RADIO FAIL
Version: 4.1 NetAct name: TCH_REL_DUE_RADIO_FAIL
Description: Number of TCH releases because of radio failures, in call setup phase before connection acknowledgement. This counter is also updated in an intra-cell or inter-cell handover, if the TCH is released because of a radio failure before the con-versation phase (handover is started and it fails before a connection acknowledge-ment message is received).
Counter 001013 is updated along with this counter.
Updated: When a TCH is released because of a radio failure.
This counter is updated in call phases 2, 3, 5, or 8-14 only.
See figure Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001013: TRANSACTIONS ENDED DUE RADIO FAIL
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
Counter ID: 001140 Network element name: TCH REL DUE TO BSS FAIL
Version: 4.1 NetAct name: TCH_REL_DUE_BSS_FAIL
Description: Number of TCH releases because of BSS failures, in call setup phase before connection acknowledgement. This counter is also updated in intra-cell or inter-cell handover, if the TCH is released because of BSS problems before conver-sation phase (handover is started and fails before connection acknowledgement message is received).
Counter 001012 is updated along with this counter.
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3.142 001141 / TCH SEIZ FAILS DUE TO CONG
Updated: When a TCH is released because of BSS problems.
This counter is updated in call phases 2, 3, 5, or 8-14 only.
See figures: - Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message - TCH assignment failure, MSC sends CLEAR_COMMAND message
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001012: TRANSACTIONS ENDED DUE TO BSS PROBLEM
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
Counter ID: 001141 Network element name: TCH SEIZ FAILS DUE TO CONG
Version: 4.0 NetAct name: TCH_SEIZ_FAILS_DUE_CONG
Description: Number of TCH seizure failures because of congestion during call setup before connection acknowledgement. This counter is also updated in intra-cell or inter-cell handover, if the TCH attempt fails because of congestion before conversa-tion phase (handover is started and fails before connection acknowledgement message is received). In case of an external handover and handovers after external handover this counter is not incremented.
Counter 001011 is updated along with this counter.
Updated: When RRM rejects a TCH request because of congestion.
This counter is updated in phases 2, 3, 5, or 8 only.
See figures: - FACCH call setup due to SDCCH congestion, no free TCH channel - Basic call, no free TCH and queuing or directed retry is not allowed - Basic call, no free TCHs, unsuccessful queuing and directed retry not activated - TCH assignment failure with cause switch_circuit_pool, queuing and directed retry not allowed - Unsuccessful forced release - Unsuccessful forced handover
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3.143 001142 / QUEUED URGENT HANDOVER ATTEMPTS
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
Counter ID: 001142 Network element name: QUEUED URGENT HANDOVER ATTEMPTS
Version: 4.0 NetAct name: QUE_URG_HO_ATT
Description: Number of queued urgent handover attempts.
Counters 001010 and 001064 are updated along with this counter.
Updated: When a TCH request for an urgent handover attempt is put to the queue because of a lack of available TCH resources requested.
See figures:- Internal intra-cell HO, successful TCH queuing- Internal intra-cell handover, unsuccessfulTCH queuing
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
001064: QUE ALL HO REQ ATT
Operability class:
Related to feature:
BSS6115: Radio Channel Allocation Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
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3.144 001143 / AVE QUE TIME OF URGENT HO ATTEMPTS
3.145 001144 / QUE DENOMINATOR 4
Counter ID: 001143 Network element name: AVE QUE TIME OF URGENT HO ATTEMPTS
Version: 4.0 NetAct name:
Description: Numerator of average queuing time of queued urgent handover attempts (unit of the value is 10 ms).
In a successful case counters 001008, 001022 and 001144 are updated along with this counter. In an unsuccessful case counters 001022, 001025, 001068 and 001144 are updated along with this counter.
Updated: When a TCH request for an urgent handover attempt is removed from the queue (both in a successful and an unsuccessful case).
See figures:- Internal intra-cell HO, successful TCH queuing- Internal intra-cell handover, unsuccessful TCH queuing
Logical type: Sum Trigger type: Duration Sampling interval:
Unit: 10 ms Range: Example values:
Dependencies with other counters:
001008: SUCCESS TCH SEIZURE FOR HO
001022: AVE QUEUE TIME OF HO ATTEMPTS
001025: NOT SERVED QUEUED HO ATTEMPTS
001068: QUE ALL HO REQ FAIL
001144: QUE DENOMINATOR 4
Operability class:
Related to feature:
BSS6115: Radio Channel Allocation Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
Counter ID: 001144 Network element name: QUE DENOMINATOR 4
Version: 4.0 NetAct name:
Description: Denominator of average queuing time of queued urgent handover attempts.
Counter 001143 is updated along with this counter.
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3.146 001145 / AVE QUE TIME OF NON URGENT HO ATTEMPTS
Updated: See figures:- Internal intra-cell HO, successful TCH queuing- Internal intra-cell handover, unsuccessful TCH queuing
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001143: AVE QUE TIME OF URGENT HO ATTEMPTS
Operability class:
Related to feature:
BSS6115: Radio Channel Allocation Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
Counter ID: 001145 Network element name: AVE QUE TIME OF NON URGENT HO ATTEMPTS
Version: 4.0 NetAct name:
Description: Numerator of average queuing time of queued non-urgent handover attempts.
In a successful case counters 001008, 001022 and 001146 are updated along with this counter. In an unsuccessful case counters 001022, 001025, 001068 and 001146 are updated along with this counter.
Updated: When a TCH request for a non-urgent HO attempt is removed from the queue (both in a successful and unsuccessful case).
See figures:- Internal intra-cell HO, successful TCH queuing- Internal intra-cell handover, unsuccessful TCH queuing
Logical type: Sum Trigger type: Duration Sampling interval:
Unit: 10 ms Range: Example values:
Dependencies with other counters:
001008: SUCCESS TCH SEIZURE FOR HO
001022: AVE QUEUE TIME OF HO ATTEMPTS
001025: NOT SERVED QUEUED HO ATTEMPTS
001068: QUE ALL HO REQ FAIL
001146: QUE DENOMINATOR 5
Operability class:
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3.147 001146 / QUE DENOMINATOR 5
3.148 001147 / QUEUED URG HO ATTS NOT SERVED
Related to feature:
BSS6115: Radio Channel Allocation Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
Counter ID: 001146 Network element name: QUE DENOMINATOR 5
Version: 4.0 NetAct name:
Description: Denominator of average queuing time of queued urgent HO attempts.
Counter 001145 is updated along with this counter.
Updated: See figures:- Internal intra-cell HO, successful TCH queuing- Internal intra-cell handover, unsuccessful TCH queuing
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001145: AVE QUE TIME OF NON URGENT HO ATTEMPTS
Operability class:
Related to feature:
BSS6115: Radio Channel Allocation Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
Counter ID: 001147 Network element name: QUEUED URG HO ATTS NOT SERVED
Version: 4.0 NetAct name: QUE_URG_HO_ATT_NOT_SERVED
Description: Number of queued urgent handover attempts not served.
Counters 001022, 001025, 001068 and 001143 are updated along with this counter.
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3.149 001148 / MS SUCC TCH SEIZURE FOR ASSIGNMENT COMPLETE
Updated: When the urgent HO attempt is removed from the queue because of queuing timer expiry or substitution by a higher priority queuing item.
See figure Internal intra-cell handover, unsuccessful TCH queuing.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001022: AVE QUEUE TIME OF HO ATTEMPTS
001025: NOT SERVED QUEUED HO ATTEMPTS
001068: QUE ALL HO REQ FAIL
001143: AVE QUE TIME OF URGENT HO ATTEMPTS
Operability class:
Related to feature:
BSS6115: Radio Channel Allocation Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S6 Definition updated in release:
Counter ID: 001148 Network element name: MS SUCC TCH SEIZURE FOR ASSIGNMENT COMPLETE
Version: 4.0 NetAct name: MS_TCH_SUCC_SEIZ_ASSIGN_CMPLT
Description: Number of times when a MS is successfully on the TCH after an ASSIGNMENT_COMPLETE message.
Updated: When an ASSIGNMENT_COMPLETE message is received from the MS via BTS to TCH. The TCH is reserved and the MS is moved from the SDCCH to the TCH.
This counter is updated only when a call is established for the first time, not during handovers. This counter is not updated with softwares FACCH call setup because of SDCCH congestion, directed retry procedure in BSC, TCH assignment to super reuse TRX in IUO and direct access to super re-use TRX in IUO.
See figure Normal call.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
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3.150 001149 / CALLS ENDED BY USER DURING DADL/B SETUP
3.151 001150 / SUCC TCH SEIZ WHEN GOOD QUAL IN ADJA-CENTS
Operability class:
Related to feature:
BSS11083: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001149 Network element name: CALLS ENDED BY USER DURING DADL/B SETUP
Version: 4.0 NetAct name: CALLS_ENDED_USER_DADLB_SETUP
Description: Number of CALLS RELEASED BY USER in a call setup phase during DADL/B handover.
Updated: When the user releases the call in call setup phase and BSC has started to evaluate the potential target cells for DADL/B handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:S11.5
Counter ID: 001150 Network element name: SUCC TCH SEIZ WHEN GOOD QUAL IN ADJACENTS
Version: 4.0 NetAct name: TCH_SUCC_SEIZ_GOOD_QUAL_ADJ
Description: This counter is not in use.
Updated: This counter is not updated
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
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3.152 001151 / TCH REQ REJ DUE TO BAD QUALITY IN ADJACENT
3.153 001152 / SUCC TCH SEIZ WHEN QUAL BETW GOOD AND BAD IN ADJACENT
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S8 Definition updated in release:S12
Counter ID: 001151 Network element name: TCH REQ REJ DUE TO BAD QUALITY IN ADJACENT
Version: 4.0 NetAct name: TCH_REQ_REJ_BAD_QUAL_ADJ
Description: This counter is not in use.
Updated: This counter is not updated
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S8 Definition updated in release:S12
Counter ID: 001152 Network element name: SUCC TCH SEIZ WHEN QUAL BETW GOOD AND BAD IN ADJACENT
Version: 4.0 NetAct name: TCH_SUCC_SEIZ_BETW_QUAL_ADJ
Description: This counter is not in use.
Updated: This counter is not updated
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
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3.154 001153 / TCH REQ REJ WHEN QUAL BETW GOOD AND BAD IN ADJACENT
3.155 001154 / DYNAMIC SDCCH RECONFIGURATION ATTEMPT
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S8 Definition updated in release:S12
Counter ID: 001153 Network element name: TCH REQ REJ WHEN QUAL BETW GOOD AND BAD IN ADJACENT
Version: 4.0 NetAct name: TCH_REQ_REJ_BETW_QUAL_ADJ
Description: This counter is not in use.
Updated: This counter is not updated
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S8 Definition updated in release:S12
Counter ID: 001154 Network element name: DYNAMIC SDCCH RECON-FIGURATION ATTEMPT
Version: 4.0 NetAct name: SDCCH_DYNAMIC_RECONF_ATT
Description: Number of SDCCH reconfiguration attempts for immediate assignment.
Counters 001000 and 001007 are updated along with this counter.
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3.156 001155 / UNSUCC IMM ASS SDCCH ATTEMPT
Updated: When an SDCCH channel is needed for an immediate assignment and no free SDCCHs are available and the request is sent for reconfiguring a TCH channel to an SDCCH channel. This counter is not updated if reconfiguration is done from SDCCH to TCH channel.
See figure Reconfiguration from TCH to SDCCH.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001000: SEIZURE ATTEMPTS
001007: SUCCESS SEIZURE FOR IMMEDIATE ASSIGNMENT
Operability class:
Related to feature:
BSS7036: Dynamic SDCCH Allocation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001155 Network element name: UNSUCC IMM ASS SDCCH ATTEMPT
Version: 4.1 NetAct name: SDCCH_UNSUCC_IMM_ASSIGN_ATT
Description: Number of unsuccessful SDCCH allocation attempts for immediate assignment.
Counter 001001 is updated along with this counter.
Updated: When the SDCCH channel allocation does not succeed because of a lack of SDCCH resources at the time of the immediate assignment. When SDCCH is released with the dx-cause rtsl_reconf_fail_c.
Triggered for example when a dynamic SDCCH allocation (1154 DYNAMIC_SDCCH_RECONFIGURATION_ATTEMPT) is tried but it fails. Failure can be caused for example by the following situations.
- In the BCSU/BCXU there cannot be more SDCCH allocated. - All TCHs are busy and cannot be reallocated. - RRM has reconfigured a TCH to SDCCH but ABI cannot do the same. In this case the dynamic SDCCH seized by RRM is released with cause rtsl_reconf_fail and the call attempt fails (blocking).
See figure FACCH call setup because of SDCCH congestion with counters.
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3.157 001156 / HSCSD TCH REQ WITH 14,4
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001001: SEIZURE ATTEMPTS WITH BUSY SDCCH
Operability class:
Related to feature:
BSS7036: Dynamic SDCCH Allocation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001156 Network element name: HSCSD TCH REQ WITH 14,4
Version: 4.0 NetAct name: HSCSD_TCH_REQ_14400
Description: Number of TCH requests for 14.4 kbit/s data.
NOTE! Despite its name, this counter is not related to High Speed Circuit Switched Data (HSCSD), but the single slot 14.4 kbit/s data services.
Dependencies: Counters for a TCH request.
Updated: When the RRM receives a TCH request for a single slot 14.4 kbit/s data con-nection in a call or a handover attempt.
See figures: - Mobile originated HSCSD call setup - Successful internal inter-cell handover for HSCSD, target cell allocations and acti-vations for three channels
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSS7003: High Speed Circuit Switched Data (HSCSD)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
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3.158 001157 / HSCSD SUCC TCH SEIZ WITH 14,4
3.159 001158 / HSCSD TRANSP TCH REQ
Counter ID: 001157 Network element name: HSCSD SUCC TCH SEIZ WITH 14,4
Version: 4.0 NetAct name: HSCSD_TCH_SUCC_SEIZ_14400
Description: Number of successful TCH seizures for 14.4 kbit/s data.
NOTE! Despite of its name, this counter is not related to High Speed Circuit Switched Data (HSCSD), but the single slot 14.4 kbit/s data services.
Dependencies: Counters for a successful TCH seizures.
Updated: When the RRM allocates a TCH/F as a response to a single slot 14.4 kbit/s request in a call or handover attempt.
See figures: - Mobile originated HSCSD call setup - Successful internal inter-cell handover for HSCSD, target cell allocations and acti-vations for three channels
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS7003: High Speed Circuit Switched Data (HSCSD)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001158 Network element name: HSCSD TRANSP TCH REQ
Version: 4.0 NetAct name: HSCSD_TRANSP_TCH_REQ
Description: Number of transparent HSCSD TCH requests.
Counter 001160 or 001161 is updated along with this counter.
Updated: When TCH/F(s) is / are requested for a transparent HSCSD service from the RRM in a call or a handover attempt.
See figures: - Mobile originated HSCSD call setup - Successful internal inter-cell handover for HSCSD, target cell allocations and acti-vations for three channels
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3.160 001159 / HSCSD SUCC TRANSP TCH SEIZ
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001160: HSCSD REQ FOR CALL SETUP
001161: HSCSD TCH REQ FOR HO
Operability class:
Related to feature:
BSS7003: High Speed Circuit Switched Data (HSCSD)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001159 Network element name: HSCSD SUCC TRANSP TCH SEIZ
Version: 4.0 NetAct name: HSCSD_TRANSP_TCH_SUCC_SEIZ
Description: Number of successful transparent HSCSD TCH seizures.
Counter 001162 or 001163 is updated along with this counter.
Updated: When TCH/F has been successfully allocated for transparent HSCSD service by RRM. Incrementation is made only by the HSCSD main channel allocation.
See figures: - Mobile originated HSCSD call setup - Successful internal inter-cell handover for HSCSD, target cell allocations and acti-vations for three channels
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001162: HSCSD SUCC TCH SEIZ FOR CALL SETUP
001163: HSCSD SUCC TCH SEIZ FOR HO
Operability class:
Related to feature:
BSS7003: High Speed Circuit Switched Data (HSCSD)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
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3.161 001160 / HSCSD REQ FOR CALL SETUP
3.162 001161 / HSCSD TCH REQ FOR HO
Used from release: S7 Definition updated in release:
Counter ID: 001160 Network element name: HSCSD REQ FOR CALL SETUP
Version: 4.0 NetAct name: HSCSD_REQ_CALL_SETUP
Description: Number of HSCSD TCH requests for a call set-up.
Counter 001010 is updated along with this counter.
Updated: When the HSCSD data connection is requested from the RRM in a call attempt.
See figure Mobile originated HSCSD call setup.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSS7003: High Speed Circuit Switched Data (HSCSD)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001161 Network element name: HSCSD TCH REQ FOR HO
Version: 4.0 NetAct name: HSCSD_TCH_REQ_HO
Description: Number of HSCSD TCH requests for a HO.
Counter 001010 is updated along with this counter.
Updated: When the HSCSD data connection is requested from the RRM in a handover attempt.
See figure Successful internal inter-cell handover for HSCSD, target cell allocations and activations for three channels.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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3.163 001162 / HSCSD SUCC TCH SEIZ FOR CALL SETUP
3.164 001163 / HSCSD SUCC TCH SEIZ FOR HO
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
Operability class:
Related to feature:
BSS7003: High Speed Circuit Switched Data (HSCSD)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001162 Network element name: HSCSD SUCC TCH SEIZ FOR CALL SETUP
Version: 4.0 NetAct name: HSCSD_TCH_SUCC_SEIZ_CALL_SETUP
Description: Number of successful HSCSD TCH seizures for a call set-up.
Counter 001009 is updated along with this counter.
Updated: When the RRM allocates a main HSCSD TCH/F as a response to an HSCSD call attempt.
See figure Mobile originated HSCSD call setup.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001009: SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT
Operability class:
Related to feature:
BSS7003: High Speed Circuit Switched Data (HSCSD)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001163 Network element name: HSCSD SUCC TCH SEIZ FOR HO
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3.165 001164 / HSCSD CON REL DUE TO FAIL
Version: 4.0 NetAct name: HSCSD_TCH_SUCC_SEIZ_HO
Description: Number of successful HSCSD TCH seizures for a HO.
Counter 001008 is updated along with this counter.
Updated: When the RRM allocates a main HSCSD TCH/F as a response to a handover attempt.
See figure Successful internal inter-cell handover for HSCSD, target cell allocations and activations for three channels.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001008: SUCCESS TCH SEIZURE FOR HO
Operability class:
Related to feature:
BSS7003: High Speed Circuit Switched Data (HSCSD)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001164 Network element name: HSCSD CON REL DUE TO FAIL
Version: 4.0 NetAct name: HSCSD_CON_REL_DUE_FAIL
Description: Number of HSCSD connection releases because of a failure.
Impact: HO failure, Call cleared
Updated: When the HSCSD main TCH/F is released with dx_cause indicating a failure.
See figure A CONNECTION_FAILURE message which comes during an HSCSD.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS7003: High Speed Circuit Switched Data (HSCSD)
Related to standard:
3GPP Measurement name (Clause header):
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3.166 001165 / SUCCESS TCH SEIZURE FOR DIRECT ACCESS
3.167 001166 / TCH REQUEST FOR DIRECT ACCESS REJECTED DUE TO LACK
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001165 Network element name: SUCCESS TCH SEIZURE FOR DIRECT ACCESS
Version: 4.0 NetAct name: TCH_SUCC_SEIZ_FOR_DIR_ACC
Description: Number of successful seizures for a TCH in direct accesses to a super-reuse TRX during the call setup phase.
Counters 001009 and 001091 are updated along with this counter.
Updated: When the RRM allocates a TCH as a response to a TCH request in a call attempt using direct access to a super-reuse TRX procedure.
See figure Internal intra-cell direct access from a regular DCCH to the super-reuse TRX.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001009: SUCCESS TCH SEIZURE FOR NORMAL ASSIGNMENT
001091: TCH SEIZ UND OVER
Operability class:
Related to feature:
BSS7057: Direct Access to Super Re-use TRX in IUO
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001166 Network element name: TCH REQUEST FOR DIRECT ACCESS REJECTED DUE TO LACK
Version: 4.0 NetAct name: TCH_REQ_DIR_ACC_REJ_DUE_LACK
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3.168 001167 / TCH REQUEST FOR A BSC CONTROLLED TRHO PROCEDURE
Description: Number of requests for a direct access to a super-reuse TRX that are rejected because of a lack of resources during the call setup phase.
Counters 001011 and 001092 are updated along with this counter.
Updated: When the RRM has no TCHs available for assignment requests in a direct access attempt to a super-reuse TRX.
See figure Unsuccessful internal intra-cell direct access from regular DCCH to the super-reuse TRX due to lack of resources.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
001092: TCH REJ REQ UND OVE
Operability class:
Related to feature:
BSS7057: Direct Access to Super Re-use TRX in IUO
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S7 Definition updated in release:
Counter ID: 001167 Network element name: TCH REQUEST FOR A BSC CONTROLLED TRHO PROCEDURE
Version: 4.0 NetAct name: TCH_REQ_BSC_TRHO
Description: Number of TCH requests for a BSC-controlled TRHO procedure.
Updated: When the RRM receives a TCH request in a BSC-controlled TRHO attempt.
See figure Successful BSC controlled TRHO.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS8123: Advanced Multilayer Handling
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
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3.169 001168 / SUCC TCH SEIZ FOR A BSC CONTROLLED TRHO
3.170 001169 / REJ TCH SEIZ FOR A BSC CONTROLLED TRHO DUE LACK OF RESOURCES
Exceptions to related standard:
Used from release: S8 Definition updated in release:
Counter ID: 001168 Network element name: SUCC TCH SEIZ FOR A BSC CONTROLLED TRHO
Version: 4.0 NetAct name: TCH_SUCC_SEIZ_BSC_TRHO
Description: Number of successful TCH seizures for a BSC-controlled TRHO
Updated: When the RRM allocates a TCH as a response to a TCH request in a BSC-controlled TRHO attempt.
See figure Successful BSC controlled TRHO.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS8123: Advanced Multilayer Handling
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S8 Definition updated in release:
Counter ID: 001169 Network element name: REJ TCH SEIZ FOR A BSC CONTROLLED TRHO DUE LACK OF RESOURCES
Version: 4.0 NetAct name: TCH_REQ_REJ_BSC_TRHO_DUE_LACK
Description: Number of rejected TCH requests for a BSC-controlled TRHO procedure because of exceeded load in the target cell.
Updated: When the RRM rejects traffic channel allocation because of exceeded load in the target cell in a BSC-controlled TRHO.
See figure Unsuccessful BSC controlled TRHO.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
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3.171 001170 / SUCCESSFUL TCH SEIZURES FOR DADLB HO
3.172 001171 / TCH REQUEST IN DADLB HO REJECTED
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S8 Definition updated in release:
Counter ID: 001170 Network element name: SUCCESSFUL TCH SEIZURES FOR DADLB HO
Version: 4.0 NetAct name: TCH_SUCC_SEIZ_DADLB_HO
Description: The number of successful TCH seizures because of DADL/B handover.
Updated: The counter is updated when a TCH allocation in the target cell during DADL/B handover is successful. BSC internal handover case.
See figure Successful handover due to DADL/B.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS8032: Direct Access to Desired Layer/Band
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S8 Definition updated in release:
Counter ID: 001171 Network element name: TCH REQUEST IN DADLB HO REJECTED
Version: 4.0 NetAct name: TCH_REQ_REJ_DADLB_HO
Description: Number of TCH requests in DADL/B handover rejected because of a lack of TCH.
Updated: The counter is updated when a TCH allocation in the target cell during DADL/B handover is unsuccessful because of lack of TCH. BSC internal handover case.
See figure Unsuccessful DADL/B handover due to lack of resources.
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3.173 001172 / DADLB START DUE TO EXCEEDED LOAD
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS8032: Direct Access to Desired Layer/Band
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S8 Definition updated in release:
Counter ID: 001172 Network element name: DADLB START DUE TO EXCEEDED LOAD
Version: 4.0 NetAct name: DADLB_START_DUE_EXCEEDED_LOAD
Description: Number of DADL/B handover attempts, started because of exceeded load in accessed cell.
Counter 004129 is updated if DADL/B HO is started.
Updated: This counter is updated when channel request is rejected because of exces-sive load and Radio Resource management requests a DADL/B handover. If the target cell is found within MaxTimeLimitDR, the DADL/B handover is started and also the counter 004129 is updated. If this timer triggers the DADL/B handover is not started.
See figures: - Successful handover due to DADL/B - Unsuccessful DADL/B handover due to lack of resources
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
004129: HO ATT DUE TO DADLB
Operability class:
Related to feature:
BSS8032: Direct Access to Desired Layer/Band
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
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3.174 001173 / REMOVAL FROM QUE DUE TO DR
3.175 001174 / GPRS TER UPGRD REQ
Used from release: S8 Definition updated in release:
Counter ID: 001173 Network element name: REMOVAL FROM QUE DUE TO DR
Version: 4.0 NetAct name: REMOVAL_FROM_QUE_DUE_TO_DR
Description: Number of requests removed from the queue because of start of DR.
Updated: This counter is updated when a request is removed from the queue by the RRM because of the start of DR.
See figure Internal directed retry.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S8 Definition updated in release:
Counter ID: 001174 Network element name: GPRS TER UPGRD REQ
Version: 4.1 NetAct name: GPRS_TER_UPGRD_REQ
Description: Number of territory upgrade requests received from the Packet Controller Unit.
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3.176 001175 / INCOMPL SERV GPRS TER UPGR REQ
Updated: "When the Radio Resource Management receives from the Packet Control-ler Unit a request for new radio time slots to be added into the GPRS territory. The PCU can request an upgrade after BSC has fulfilled the default territory defined by the operator parameters.
The upgrade of the GPRS territory may be started for various reasons, for example when GPRS is set enabled in a BTS, GPRS-TRX is created or deblocked, TSL inside the GPRS territory is deblocked or CS load decreases, but this counter is not triggered in these cases.
This counter is triggered only when GPRS Territory Upgrade is started by Packet Switched Radio Resource Management requesting additional GPRS capacity.
Incase of DLDC territory upgrade request, this counter is updated together with counter 001257 - GPRS TERRITORY UPGRADE REQUEST DUE DLDC"
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001257: GPRS TERRITORY UPGRADE REQUEST DUE DLDC
Operability class:
Related to feature:
BSS21343: DLDC Territory Procedures
BSS09006: General Packet Radio Service (GPRS)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:S15
Counter ID: 001175 Network element name: INCOMPL SERV GPRS TER UPGR REQ
Version: 4.1 NetAct name: INCOMPL_SERV_GPRS_TER_UPGR_REQ
Description: Number of territory upgrade requests that have been served with less radio time slots than requested.
Updated: When Radio Resource Management upgrades the GPRS territory with less RTSLs than the Packet Controller Unit requested for. This counter is updated also when DLDC territory upgrade request is fulfilled with less TSLs than requested
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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3.177 001176 / GPRS TER UG REJ DUE CSW TR
3.178 001177 / GPRS TER UG REJ DUE LACK PSW RES
Dependencies with other counters:
Operability class:
Related to feature:
BSS21343: DLDC Territory Procedures
BSS09006: General Packet Radio Service (GPRS)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:S15
Counter ID: 001176 Network element name: GPRS TER UG REJ DUE CSW TR
Version: 4.0 NetAct name: GPRS_TER_UG_REJ_DUE_CSW_TR
Description: Number of territory upgrade requests that have been rejected because of the high load of the circuit switched traffic.
Updated: When Radio Resource Management rejects a GPRS territory upgrade request from the PCU because of high traffic load in BTS and maintaining the margin of idle TCHs for circuit switched traffic does not allow the upgrade.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS09006: General Packet Radio Service (GPRS)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
Counter ID: 001177 Network element name: GPRS TER UG REJ DUE LACK PSW RES
Version: 4.0 NetAct name: GPRS_TER_UG_REJ_DUE_LACK_PSW
Description: Number of territory upgrade requests that have been rejected because there are not enough resources capable of GPRS in the BTS.
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3.179 001178 / GPRS TER UG REJ DUE LACK PCU CAP
Updated: When Radio Resource Management rejects a GPRS territory upgrade request of the PCU because all TRXs capable of GPRS traffic are already within the GPRS territory.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS09006: General Packet Radio Service (GPRS)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
Counter ID: 001178 Network element name: GPRS TER UG REJ DUE LACK PCU CAP
Version: 4.0 NetAct name: GPRS_TER_UG_REJ_DUE_LACK_PCU
Description: Number of territory upgrade requests that have been rejected because the capacity of the Packet Controller Unit the BTS is connected to is already totally in use.
Updated: When Radio Resource Management rejects a GPRS territory upgrade request from the PCU because the maximum number of TSLs, which the PCU is capable to handle are already in use.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS09006: General Packet Radio Service (GPRS)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
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3.180 001179 / GPRS TER DG DUE INC IN CSW TR
3.181 001180 / GPRS TER UG DUE DEC CSW TR
Counter ID: 001179 Network element name: GPRS TER DG DUE INC IN CSW TR
Version: 4.0 NetAct name: GPRS_TER_DG_DUE_INC_IN_CSW_TR
Description: Number of GPRS territory downgrades made because of the increase in the circuit switched traffic load.
Updated: When the Radio Resource Management starts a GPRS territory downgrade in order to maintain the margin of idle TCHs for circuit switched traffic after a circuit switched channel allocation, or when the BSC during TCH congestion in the CSW ter-ritory directly allocates a TCH belonging to the GPRS territory.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS09006: General Packet Radio Service (GPRS)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
Counter ID: 001180 Network element name: GPRS TER UG DUE DEC CSW TR
Version: 4.0 NetAct name: GPRS_TER_UG_DUE_DEC_CSW_TR
Description: Number of GPRS territory upgrades made to fulfill the default GPRS ter-ritory as a consequence of decrease in the circuit switched traffic load.
Updated: When the Radio Resource Management starts a GPRS territory upgrade in order to fulfill the defined default GPRS territory after the traffic load in the BTS has decreased as a consequence of a circuit switched channel release.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS09006: General Packet Radio Service (GPRS)
Related to standard:
3GPP Measurement name (Clause header):
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3.182 001181 / GPRS TER DOWNGRADE REQ
3.183 001182 / FULL TCH SEIZ INTRA AMR HO
3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
Counter ID: 001181 Network element name: GPRS TER DOWNGRADE REQ
Version: 4.0 NetAct name: GPRS_TER_DOWNGRADE_REQ
Description: Number of territory downgrade requests received from the Packet Con-troller Unit.
Updated: When the Radio Resource Management receives from the Packet Control-ler Unit a request for a GPRS territory downgrade. The PCU can request for a down-grade for GPRS RTSLs beyond the default territory defined by the operator parameters. A GPRS territory downgrade is initiated because of increase of CS load. PCU can initiate GPRS resource downgrade to additional GPRS resources. For example, when PCU has previously requested GPRS territory upgrade and addi-tional channels has been given for GPRS use. When there is no more need for addi-tonal GPRS capacity PCU requests for downgrade, the additional channels are removed from GPRS territory and this counter is triggered.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS09006: General Packet Radio Service (GPRS)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S9 Definition updated in release:
Counter ID: 001182 Network element name: FULL TCH SEIZ INTRA AMR HO
Version: 4.0 NetAct name: FULL_TCH_SEIZ_INTRA_AMR_HO
Description: Number of successful FR TCH seizures for an intra-cell HO when the channel rate changes and AMR speech codecs are in use.
Counter 001116 is updated along with this counter.
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3.184 001183 / HALF TCH SEIZ INTRA AMR HO
Updated: When the Radio Resource Management allocates a FR TCH for intra-cell HO as a response to a TCH request and the channel rate is changed from HR to FR and speech codec versions 3 are in use.
Updated only in AMR unpacking handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001116: FULL TCH SEIZ INT HO CH RATE
Operability class:
Related to feature:
BSS10004: Adaptive Multi Rate (AMR) Speech Codec
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S10 Definition updated in release:
Counter ID: 001183 Network element name: HALF TCH SEIZ INTRA AMR HO
Version: 4.0 NetAct name: HALF_TCH_SEIZ_INTRA_AMR_HO
Description: Number of successful HR TCH seizures for intra-cell HO when the channel rate changes and AMR speech codecs are in use.
Counter 001117 is updated along with this counter.
Updated: When the Radio Resource Management allocates a HR TCH for intra-cell HO as a response to a TCH request and the channel rate is changed from FR to HR and speech codec versions 3 are in use.
Updated only in AMR packing handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001117: HALF TCH SEIZ INT HO CH RATE
Operability class:
Related to feature:
BSS10004: Adaptive Multi Rate (AMR) Speech Codec
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
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3.185 001184 / TCH CALL REQ FOR AMR
3.186 001185 / SUCCESSFUL AMR CODEC SET DOWNGRADES
Exceptions to related standard:
Used from release: S10 Definition updated in release:
Counter ID: 001184 Network element name: TCH CALL REQ FOR AMR
Version: 4.0 NetAct name: TCH_CALL_REQ_FOR_AMR
Description: Number of TCH requests for an AMR call.
Counter 001026 is updated along with this counter in case of call setup.
Updated: When the Radio Resource Management receives a TCH request in a call setup or HO attempt and speech codec version 3 is the most preferred one.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001026: TCH CALL REQ
Operability class:
Related to feature:
BSS10004: Adaptive Multi Rate (AMR) Speech Codec
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S10 Definition updated in release:
Counter ID: 001185 Network element name: SUCCESSFUL AMR CODEC SET DOWNGRADES
Version: 4.0 NetAct name: SUCC_AMR_CODEC_SET_DOWNGR
Description: Number of successful AMR codec set downgrades during internal HOs for the source side AMR codec set. Downgrade is made to align the source side AMR codec set with the one chosen for the target side in order to utilize the one-way downlink speech path connection for the target side during the internal HO. The utili-zation of one-way downlink speech path connection decreases the amount of muting experienced in the speech path connection. Downgrade decision during internal HO depends on the parameter AMR codec mode set downgrades and upgrades enabled.
Updated: By the Abis interface services after successful mode modify procedures for BTS and MS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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3.187 001186 / UNSUCCESSFUL AMR CODEC SET DOWN-GRADES
3.188 001187 / SUCCESSFUL AMR CODEC SET UPGRADES
Dependencies with other counters:
Operability class:
Related to feature:
BSS10004: Adaptive Multi Rate (AMR) Speech Codec
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S10 Definition updated in release:
Counter ID: 001186 Network element name: UNSUCCESSFUL AMR CODEC SET DOWNGRADES
Version: 4.0 NetAct name: UNSUCC_AMR_CODEC_SET_DOWNGR
Description: Number of unsuccessful AMR codec set downgrades during internal HOs for the source side AMR codec set. Alignment between the source side AMR codec set and the one chosen for the target side has failed and usage of one-way speech path downlink connection for the target side during the internal HO is not pos-sible.
Updated: By the Abis interface services after an unsuccessful mode modify procedure for BTS or MS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS10004: Adaptive Multi Rate (AMR) Speech Codec
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S10 Definition updated in release:
Counter ID: 001187 Network element name: SUCCESSFUL AMR CODEC SET UPGRADES
Version: 4.0 NetAct name: SUCC_AMR_CODEC_SET_UPGR
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3.189 001188 / UNSUCCESSFUL AMR CODEC SET UPGRADES
Description: Number of successful AMR codec set upgrades after internal HOs for the target side AMR codec set. Upgrade is made to utilize the original AMR codec set of the target BTS which set was not chosen for the target side because of target side alignment with the source side during internal HO. This alignment is made in order to utilize the one-way downlink speech path connection for the target side during the internal HO. The utilization of one-way speech path downlink connection decreases the amount of muting experienced in the speech path connection. Upgrade decision after internal HO depends on the parameters AMR codec mode set downgrades and upgrades enabled and AMR multirate configuration in handovers.
Updated: By the Abis interface services after successful mode modify procedures for BTS and MS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS10004: Adaptive Multi Rate (AMR) Speech Codec
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S10 Definition updated in release:
Counter ID: 001188 Network element name: UNSUCCESSFUL AMR CODEC SET UPGRADES
Version: 4.0 NetAct name: UNSUCC_AMR_CODEC_SET_UPGR
Description: Number of unsuccessful AMR codec set upgrades after internal HOs for the target side AMR codec set. The target side continues to use the currently used AMR codec set.
Updated: By the Abis interface services after an unsuccessful mode modify procedure for BTS or MS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS10004: Adaptive Multi Rate (AMR) Speech Codec
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
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3.190 001189 / TCH REQ FOR 96 DAT CALL
3.191 001190 / SUCC TCH SEIZ FOR 96 DAT CALL
Exceptions to related standard:
Used from release: S10 Definition updated in release:
Counter ID: 001189 Network element name: TCH REQ FOR 96 DAT CALL
Version: 4.0 NetAct name: TCH_REQ_FOR_96_DAT_CALL
Description: Number of TCH requests for 9.6 kbit/s data call.
Updated: When the Radio Resource Management receives a TCH request for a single slot 9.6 kbit/s data connection in a call or a handover attempt.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S10 Definition updated in release:
Counter ID: 001190 Network element name: SUCC TCH SEIZ FOR 96 DAT CALL
Version: 4.0 NetAct name: SUCC_TCH_SEIZ_FOR_96_DAT_CALL
Description: Number of successful TCH seizures for 9.6 kbit/s data call.
Updated: When the Radio Resource Management allocates a TCH/F as a response to a single slot 9.6 kbit/s request in a call or handover attempt.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S10 Definition updated in release:
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3.192 001191 / SDCCH DROP CALL AND HO
3.193 001192 / TCH REQUESTS FOR CALL ATTEMPT
Counter ID: 001191 Network element name: SDCCH DROP CALL AND HO
Version: 4.2 NetAct name: SDCCH_DROP_CALL_AND_HO
Description: Number of SDCCH drops in call setup and handover.
Updated: When 'CLEAR REQUEST' message is sent by BSC between 'CM SERVICE REQUEST' - 'ASSIGNMENT REQUEST' (call setup) and between 'HANDOVER COMPLETE' - 'ASSIGNMENT REQUEST' (SDCCH-SDCCH handover).
Logical type: Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
RG301618: SDCCH Drop Counters due to Clear Request
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S10.5ED
Definition updated in release:S15
Counter ID: 001192 Network element name: TCH REQUESTS FOR CALL ATTEMPT
Version: 4.0 NetAct name: TCH_REQUESTS_CALL_ATTEMPT
Description: Number of TCH channel requests for a call
Updated: Updated when a TCH is requested for a call. The counter is updated only once for every call attempt, that is, it is not updated for TCH-TCH handover attempts.
In segment environment, if the seizure of TCH is successful, the counter is updated to the BTS from which the TCH was successfully seizured. If the seizure is unsuc-cessful, the counter is updated to the BCCH BTS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
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3.194 001193 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT
3.195 001194 / TCH ACCESS REJECTED DUE LOW RX
Exceptions to related standard:
Used from release: S10.5ED
Definition updated in release:S11, S12 (Name changed)
Counter ID: 001193 Network element name: SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT
Version: 4.0 NetAct name: SUCC_TCH_SEIZ_CALL_ATTEMPT
Description: Number of succesful TCH channel seizures for a call
Updated: When a TCH is successfully allocated for a call.
The counter is updated only once for every call attempt, that is, it is not updated for TCH-TCH handover attempts.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S10.5ED
Definition updated in release:S11, S12 (Name changed)
Counter ID: 001194 Network element name: TCH ACCESS REJECTED DUE LOW RX
Version: 4.0 NetAct name: TCH_ACC_REJ_DUE_LOW_RX
Description: Number of unsuccessful call setup attempts because of a too low RX level.
Updated: RRM updates the counter if a call setup fails because of a too low RX level.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
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3.196 001195 / MSC O HO CMD
3.197 001196 / BSC O HO CMD
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S10.5ED
Definition updated in release:S11.5
Counter ID: 001195 Network element name: MSC O HO CMD
Version: 4.0 NetAct name: MSC_O_HO_CMD
Description: Number of handover commands sent by the BSC in an outgoing MSC-controlled handover (SDCCH-SDCCH, TCH-TCH or SDCCH-TCH HO)
Updated: See figure Successful external handover, source.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS11083: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11 Definition updated in release:
Counter ID: 001196 Network element name: BSC O HO CMD
Version: 4.0 NetAct name: BSC_O_HO_CMD_ASSGN
Description: Number of all handover commands sent by the BSC in an outgoing BSC-controlled handover (SDCCH-SDCCH, TCH-TCH or SDCCH-TCH HO).
Updated: See figures:-Internal directed retry-Successful internal inter-cell handover-Successful SDCCH internal inter-cell handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
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3.198 001197 / BTS HO ASSGN
3.199 001198 / TCH REL DUE TO RADIO FAIL PH 9-11
Related to feature:
BSS11083: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11 Definition updated in release:
Counter ID: 001197 Network element name: BTS HO ASSGN
Version: 4.0 NetAct name: BTS_HO_ASSGN
Description: Number of assignment commands sent in intra-BTS handovers (SDCCH-SDCCH, TCH-TCH or SDCCH-TCH).
Updated: See figures:-Successful internal intra-cell handover-Successful SDCCH internal intra-cell handover
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS11083: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11 Definition updated in release:
Counter ID: 001198 Network element name: TCH REL DUE TO RADIO FAIL PH 9-11
Version: 4.0 NetAct name: TCH_REL_DUE_RADIO_FAIL_PH_9_11
Description: Number of TCH releases because of radio failures.
Updated: This counter is updated in call phases 9-11 only (Outgoing handovers before CONNECT_ACK).
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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3.200 001199 / TCH REL DUE TO BSS FAIL PH 2-3
3.201 001200 / TCH REL DUE TO BSS FAIL PH 9-11
Dependencies with other counters:
Operability class:
Related to feature:
BSS11083: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11 Definition updated in release:
Counter ID: 001199 Network element name: TCH REL DUE TO BSS FAIL PH 2-3
Version: 4.0 NetAct name: TCH_REL_DUE_BSS_FAIL_PH_2_3
Description: Number of TCH releases because of BSS failures.
Updated: This counter is updated in call phases 2-3 only.
See figures:-Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message-TCH assignment failure, MSC sends CLEAR_COMMAND message
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS11083: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11 Definition updated in release:
Counter ID: 001200 Network element name: TCH REL DUE TO BSS FAIL PH 9-11
Version: 4.0 NetAct name: TCH_REL_DUE_BSS_FAIL_PH_9_11
Description: Number of TCH releases because of BSS failures. Same DX causes as in counter 001140.
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3.202 001201 / SDCCH FAIL PH 3
3.203 001202 / DROP AFTER TCH ASSIGN
Updated: This counter is updated in call phases 9-11 only (Outgoing handovers before CONNECT_ACK).
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS11083: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11 Definition updated in release:
Counter ID: 001201 Network element name: SDCCH FAIL PH 3
Version: 4.0 NetAct name: SDCCH_FAIL_PH_3
Description: Number of all the failures on SDCCH in call phase 3 that do not trigger any TCH failure counter in the same phase.
Updated:
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS11083: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11 Definition updated in release:
Counter ID: 001202 Network element name: DROP AFTER TCH ASSIGN
Version: 4.0 NetAct name: DROP_AFTER_TCH_ASSIGN
Description: Number of dropped calls after the TCH is assigned.
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3.204 001203 / ERROR IND DURING LU
3.205 001204 / DROP TCH ASSCOMPL TO RFCH REL
Updated: When the drop occurs between ASSIGNMENT_COMPLETE and DISCON-NECT.
See figures:-CONNECTION_FAILURE message with cause transcoder_failure during a call-Dropped call between ASSIGNMENT COMPLETE and DISCONNECT
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS11083: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11 Definition updated in release:
Counter ID: 001203 Network element name: ERROR IND DURING LU
Version: 4.0 NetAct name: ERROR_IND_DURING_LU
Description: Number of Error indication messages received during the Location Update procedure.
Updated:
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS11083: Measurement Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11 Definition updated in release:
Counter ID: 001204 Network element name: DROP TCH ASSCOMPL TO RFCH REL
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Version: 4.0 NetAct name: DROP_TCH_ASSCOMPL_TO_RFCH_REL
Description: Number of TCH drops between the Assignment Complete and the RF Channel Release Ack messages.
Some of the counters 001013, 001014, 001029, 001030, 001046, 001047, 001048, 001049, 001050, 001051, 001070, 001081, 001084, 001085, 001087, 001088, and 001202 may be updated together with this counter.
Updated: When the TCH transaction ends in a phase between the Assignment Complete and the RF Channel Release Ack messages.
See figures:- CONNECTION_FAILURE message with cause transcoder_failure during a call- Dropped call between ASSIGNMENT COMPLETE and DISCONNECT- Dropped call between ASSIGNMENT COMPLETE and RF CHANNEL RELEASE ACK
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001013: TRANSACTIONS ENDED DUE RADIO FAIL
001014: TRANSACTIONS ENDED DUE SOURCE CHANNEL FAIL DURING HO
001029: TCH TR FAIL
001030: TCH TR FAIL SOURCE
001046: TCH LAPD FAIL
001047: TCH BTS FAIL
001048: TCH USER ACT
001049: TCH BCSU RESET
001050: TCH NETW ACT
001051: TCH A IF PROBL
001070: FORCED RELEASES
001081: TCH ACT FAIL CALL
001084: TCH ABIS FAIL CALL
001085: TCH ABIS FAIL SOURCE
001087: TCH A IF FAIL CALL
001088: TCH A IF FAIL SOURCE
001202: DROP AFTER TCH ASSIGN
Operability class:
Related to feature:
BSS115168: CS Statistics Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
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3.206 001205 / TCH REL DUE RAD FAIL PH 2-3
3.207 001206 / TCH REL DUE RAD FAIL PH 12-14
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
Counter ID: 001205 Network element name: TCH REL DUE RAD FAIL PH 2-3
Version: 4.1 NetAct name: TCH_REL_DUE_RAD_FAIL_PH_2_3
Description: Number of the TCH releases because of the radio failures.
Counter 001139 is updated together with this counter.
Updated: When the TCH is released in call phase 2 (MM signalling) or 3 (Basic assignment) because of a radio failure.
See figure Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS115168: CS Statistics Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
Counter ID: 001206 Network element name: TCH REL DUE RAD FAIL PH 12-14
Version: 4.1 NetAct name: TCH_REL_DUE_RAD_FAIL_PH_12_14
Description: Number of the TCH releases because of radio failures. Counter 001139 is updated together with this counter.
Updated: When the TCH is released during the Handover phases (12-14) because of a radio failure.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
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3.208 001207 / TCH REL DUE BSS FAIL PH 12-14
3.209 001208 / A IF CRC MISMATCH CALL SETUP
Related to feature:
BSS115168: CS Statistics Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
Counter ID: 001207 Network element name: TCH REL DUE BSS FAIL PH 12-14
Version: 4.1 NetAct name: TCH_REL_DUE_BSS_FAIL_PH_12_14
Description: Number of the TCH releases because of the BSS failures. Counter 001140 is updated together with this counter.
Updated: When the TCH is released during the Handover phases (12-14) because of a BSS failure.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001140: TCH REL DUE TO BSS FAIL
Operability class:
Related to feature:
BSS115168: CS Statistics Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
Counter ID: 001208 Network element name: A IF CRC MISMATCH CALL SETUP
Version: 4.0 NetAct name: A_IF_CRC_MISMATCH_CALL_SETUP
Description: Number of the TCH requests rejected because of the mismatch between the types of the requested channel and the A interface circuit, updated in call setup phase only.
Counter 001122 is updated together with this counter
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3.210 001209 / GPRS TER DG REJ DUE STREAMING
3.211 001210 / GPRS TER DG REQ WHEN EQOS ON
Updated: When the RRM changes the A interface circuit pool before the TCH alloca-tion.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001122: TCH REJ DUE REQ CH A IF CRC
Operability class:
Related to feature:
BSS115168: CS Statistics Improvements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
Counter ID: 001209 Network element name: GPRS TER DG REJ DUE STREAMING
Version: 4.0 NetAct name: GPRS_TER_DG_REJ_DUE_STREAMING
Description: This counter is not in use.
Updated: This counter is not updated.
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S12
Counter ID: 001210 Network element name: GPRS TER DG REQ WHEN EQOS ON
Version: 4.0 NetAct name: GPRS_TER_DG_REQ_WHEN_EQOS_ON
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3.212 001211 / TCH REL BSC BSC CONFLICT CALL
3.213 001212 / TCH REL BSC BSC CONFLICT TARG
Description: This counter is not in use.
Updated: This counter is not updated.
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S12
Counter ID: 001211 Network element name: TCH REL BSC BSC CONFLICT CALL
Version: 4.1 NetAct name: TCH_REL_BSC_BSC_CONFLICT_CALL
Description: Number of TCH releases because of a BSC-BSC conflict.
Updated: When a TCH is released (with cause bc_t_bsc_bsc_conflict_c in call phases 1-8 or 15)
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS11052: Dynamic Frequency and Channel Allocation (DFCA)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
Counter ID: 001212 Network element name: TCH REL BSC BSC CONFLICT TARG
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3.214 001213 / GPRS TER UG REQ FROM CSW
Version: 4.1 NetAct name: TCH_REL_BSC_BSC_CONFLICT_TARG
Description: Number of TCH releases because of a BSC-BSC conflict.
Updated: When a TCH is released (with cause bc_t_bsc_bsc_conflict_c in call phases 12-14)
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS11052: Dynamic Frequency and Channel Allocation (DFCA)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
Counter ID: 001213 Network element name: GPRS TER UG REQ FROM CSW
Version: 4.0 NetAct name: GPRS_TER_UG_REQ_FROM_CSW
Description: Number of territory upgrade requests to PCU initiated by the CSW.
Dependencies: 001214 and 001215
Updated: When the RRM initiates a PSW territory upgrade to the PCU.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001214: GPRS TER UG FROM CSW PARTIAL
001215: GPRS TER UG FROM CSW FAILED
Operability class:
Related to feature:
BSS115171: Dynamic Abis Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
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3.215 001214 / GPRS TER UG FROM CSW PARTIAL
3.216 001215 / GPRS TER UG FROM CSW FAILED
Counter ID: 001214 Network element name: GPRS TER UG FROM CSW PARTIAL
Version: 4.0 NetAct name: GPRS_TER_UG_FROM_CSW_PARTIAL
Description: Number of territory upgrade requests from the CSW RRM to the PCU that have been served with less radio time slots than requested, i.e. partially success-ful PSW territory upgrade in the PCU.
Dependencies: 001213
Updated: When the PCU upgrades the GPRS territory with less RTSLs than the RRM requested for.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001213: GPRS TER UG REQ FROM CSW
Operability class:
Related to feature:
BSS115171: Dynamic Abis Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
Counter ID: 001215 Network element name: GPRS TER UG FROM CSW FAILED
Version: 4.0 NetAct name: GPRS_TER_UG_FROM_CSW_FAILED
Description: Number of territory upgrade requests from the CSW RRM to the PCU where the upgrade of the single new radio time slots to the PCU was not successful.
Dependencies: 001213
Updated: When the PCU rejects the whole PSW territory upgrade, i.e. no single new RTSL was upgraded to the PCU.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001213: GPRS TER UG REQ FROM CSW
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3.217 001216 / TCH REQ REJ DUE TO LACK OF RES PER BCSU
Operability class:
Related to feature:
BSS115171: Dynamic Abis Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
Counter ID: 001216 Network element name: TCH REQ REJ DUE TO LACK OF RES PER BCSU
Version: 4.1 NetAct name: TCH_REQ_REJ_DUE_NO_RES_BCSU
Description: Number of TCH requests rejected because of lack of capacity in one of the BCSU/BCXU units.
Updated: When there is no BCSU/BCXU capacity available for either call or HO attempt requests. This counter may be updated either immediately after a TCH request or, in case of queuing, when the queuing timer expires.
When the TCH request is rejected in case of directed retry (DR), this counter is updated as follows:
1) When a call is removed from the queue due to a DR attempt, this counter is NOT updated on the SOURCE side. Instead, counter 001173 is updated.
2) If queuing is not used or the queuing timer expires before a DR attempt, this counter is updated on the SOURCE side.
3) On the TARGET side, this counter is updated in case of congestion (blocking).
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001173: REMOVAL FROM QUE DUE TO DR
Operability class:
Related to feature:
BSS115173: Soft Channel Capacity
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
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3.218 001217 / INTERNAL TO EXTERNAL HO
3.219 001218 / NOT CHANGED INTERNAL HO
Counter ID: 001217 Network element name: INTERNAL TO EXTERNAL HO
Version: 4.0 NetAct name: NBR_OF_INT_HO_TO_EXT
Description: Number of internal handovers changed to external handovers.
Updated: When an internal handover is aborted by changing it to an external han-dover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20117: TCSM3i
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S12 (Name changed)
Counter ID: 001218 Network element name: NOT CHANGED INTERNAL HO
Version: 4.0 NetAct name: NBR_OF_NOT_CHANGED_INT_HO
Description: Number of internal handovers that should be changed to external han-dovers, but for which the change is not allowed.
Updated: When an internal handover should be changed to an external handover, but the change is not allowed due to too high A interface load.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20117: TCSM3i
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S12 (Name changed)
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3.220 001219 / IURG RELOCATION RESOURCE REQUEST
3.221 001220 / IURG RELOCATION RESOURCE ALLOCATION SUCCESSFUL
Counter ID: 001219 Network element name: IURG RELOCATION RESOURCE REQUEST
Version: 4.1 NetAct name: IURG_RELOC_RES_REQ
Description: Number of enhanced relocation resource requests on Iur-g
Updated: When BSC receives Enhanced Relocation Resource Request from RNC
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21528: ISHO acceleration via Iur-g
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S15 (name changed)
Counter ID: 001220 Network element name: IURG RELOCATION RESOURCE ALLOCATION SUCCESSFUL
Version: 4.1 NetAct name: IURG_RELOC_RES_ALLOC_SUCC
Description: Number of successful TCH allocations forenhanced relocation resource requests on Iur-g
Updated: When BSC allocates TCH successfully for Enhanced Relocation Resource Request
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21528: ISHO acceleration via Iur-g
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S15 (name changed)
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3.222 001221 / TCH TR FAILURE FOR IURG HO WITHOUT A INTERFACE
3.223 001222 / IURG RELOCATION RESOURCE RELEASE
Counter ID: 001221 Network element name: TCH TR FAILURE FOR IURG HO WITHOUT A INTERFACE
Version: 4.1 NetAct name: TCH_TR_FAIL_FOR_IURG_HO_WO_A
Description: Number of remote transcoder failures when A-interface resource has not been allocated for Iur-g relocation procedure related handover
Updated: When BSC receives Connection Failure Indication with cause "remote transcoder failure" from BTS for TCH that has been allocated due to Enhanced Relo-cation Resource Request and A-interface circuit for this TCH has not been allocated yet
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21528: ISHO acceleration via Iur-g
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S15 (name changed)
Counter ID: 001222 Network element name: IURG RELOCATION RESOURCE RELEASE
Version: 4.1 NetAct name: IURG_RELOC_RES_RELEASE
Description: Number of TCH releases related to Enhanced Relocation Resource Release procedure
Updated: When BSC receives Enhanced Relocation Resource Release Command from RNC and releases TCH
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21528: ISHO acceleration via Iur-g
Related to standard:
3GPP Measurement name (Clause header):
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3.224 001223 / SPARE001223
3.225 001224 / SPARE001224
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S15 (name changed)
Counter ID: 001223 Network element name: SPARE001223
Version: 4.0 NetAct name: SPARE001223
Description: Reserved for future use.
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
Counter ID: 001224 Network element name: SPARE001224
Version: 4.0 NetAct name: SPARE001224
Description: Reserved for future use.
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:
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3.226 001225 / SUCCESSFUL SDCCH ESTABLISHMENT LU EXCLUDED
3.227 001226 / SDCCH DROP LU EXCLUDED
Counter ID: 001225 Network element name: SUCCESSFUL SDCCH ESTABLISHMENT LU EXCLUDED
Version: 4.1 NetAct name: SDCCH_ESTAB_SUCC_LU_EXCLUDED
Description: Number of successful SDCCH establisments without LU.
Updated: When the BSC receives 'Establish Indication' message from the BTS and the MS has successfully moved to SDCCH. Counter is not updated for ESTABLISH INDICATION messages where SDCCH requested for Location Update.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS101595: SDCCH Statistics Enhancement
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S15 (name changed)
Counter ID: 001226 Network element name: SDCCH DROP LU EXCLUDED
Version: 4.2 NetAct name: SDCCH_DROP_LU_EXCLUDED
Description: Number of dropped SDCCH without LU after SDCCH is successfully assigned.
This counter does not include phase 1 (before ESTABLISH INDICATION onSDCCH) and phase 4 (SDCCH release phase). Also the cases where call is dropped on SDCCH channel because of ASSIGNMENT FAILURE are excluded.
Updated: When the BSC requests to release a SDCCH connection due to a failure leading drop of connection on SDCCH. Counter is not updated for releases of SDCCH connections reserved for Location Update.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
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3.228 001227 / SUCCESSFUL SDCCH LU ESTABLISHMENT
3.229 001228 / SDCCH LU DROP
Related to feature:
BSS101595: SDCCH Statistics Enhancement
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S15
Counter ID: 001227 Network element name: SUCCESSFUL SDCCH LU ESTABLISHMENT
Version: 4.1 NetAct name: SDCCH_LU_ESTABLISHMENT_SUCC
Description: Number of successful LU SDCCH establisments.
Updated: When the BSC receives 'Establish Indication' message from the BTS for a Location Update request and the MS has successfully moved to SDCCH.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS101595: SDCCH Statistics Enhancement
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S15 (name changed)
Counter ID: 001228 Network element name: SDCCH LU DROP
Version: 4.2 NetAct name: SDCCH_LU_DROP
Description: Number of dropped LU SDCCH after SDCCH is successfully assigned.
This counter does not include phase 1 (before ESTABLISH INDICATION onSDCCH) and phase 4 (SDCCH release phase). Also the cases where call is dropped on SDCCH channel because of ASSIGNMENT FAILURE are excluded.
Updated: When the BSC requests to clear SDCCH connection reserved for Location Update due to a failure that leads to a dropped SDCCH.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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3.230 001229 / TCH ASSIGMENT FAILURE MS RETURN SDCCH
3.231 001230 / SDCCH DROP OTHER REASON
Dependencies with other counters:
Operability class:
Related to feature:
BSS101595: SDCCH Statistics Enhancement
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S15
Counter ID: 001229 Network element name: TCH ASSIGMENT FAILURE MS RETURN SDCCH
Version: 4.1 NetAct name: TCH_ASS_FAIL_MS_RETURN_SDCCH
Description: Number of TCH assigment failures where the MS has returned to SDCCH.
Updated: When the BSC receives 'Assignment Failure' message from the MS via the BTS indicating that the MS has returned to SDCCH.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS101595: SDCCH Statistics Enhancement
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S15 (name changed)
Counter ID: 001230 Network element name: SDCCH DROP OTHER REASON
Version: 4.2 NetAct name: SDCCH_DROP_OTHER_REASON
Description: Number of SDCCH drops excluding call setup and handover SDCCH drops.
Updated: When 'CLEAR REQUEST' message is sent by BSC and procedure is not call setup or handover.
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3.232 001231 / SDCCH LU ATTEMPTS
3.233 001232 / SDCCH LU ATTEMPTS FAIL
Logical type: Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
RG301618: SDCCH Drop Counters due to Clear Request
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S11.5 Definition updated in release:S15
Counter ID: 001231 Network element name: SDCCH LU ATTEMPTS
Version: 4.0 NetAct name: SDCCH_LU_ATTEMPT
Description: Number of SDCCH location update requests.
Counter 001000 is updated before this counter.
Updated: When a location update is received as SDCCH request type.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001000: SEIZURE ATTEMPTS
Operability class:
Related to feature:
BSS20003: CS Statistics Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S12 Definition updated in release:
Counter ID: 001232 Network element name: SDCCH LU ATTEMPTS FAIL
Version: 4.0 NetAct name: SDCCH_LU_ATTEMPT_FAIL
Description: Number of failed SDCCH location update requests.
Counter 001231 is updated before this counter.
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3.234 001233 / DROPS AFTER DTM CS TCH ASSIGNMENT
Updated: When a channel allocation for SDCCH location update fails.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001231: SDCCH LU ATTEMPTS
Operability class:
Related to feature:
BSS20003: CS Statistics Enhancements
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S12 Definition updated in release:
Counter ID: 001233 Network element name: DROPS AFTER DTM CS TCH ASSIGNMENT
Version: 4.0 NetAct name: DROP_AFTER_DTM_TCH_ASSIGN
Description: Number of DTM CS TCHs dropped after the CS TCH has been assigned.
Updated: When a CS TCH drop in the PS territory occurs between ASSIGNMENT COMPLETE and DISCONNECT messages.
This counter is updated in call phases 2, 3, 9, 10, 11 and 15 only.
See figure DTM CS connection drops after ASSIGNMENT COMPLETE; CONNEC-TION FAILURE received.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20088: Dual Transfer Mode (DTM)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S12 Definition updated in release:
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3.235 001234 / DTM CS TCH DROPS BETWEEN ASSCOMPL AND RFCH REL ACK
3.236 001235 / FORCED RELEASE AFTER FORCED HO
Counter ID: 001234 Network element name: DTM CS TCH DROPS BETWEEN ASSCOMPL AND RFCH REL ACK
Version: 4.0 NetAct name: DROP_DTM_TCH_ASCMPL_RFCH_REL
Description: Number of DTM CS TCHs dropped between ASSIGNMENT COMPLETE and RF CHANNEL RELEASE ACK messages.
Updated: When a CS TCH drop in the PS territory occurs between ASSIGNMENT COMPLETE and RF CHANNEL RELEASE ACK messages.
This counter is updated in call phases 2, 3, 4, 9, 10, 11 and 15 only.
See figures:- DTM CS connection drops after ASSIGNMENT COMPLETE; CONNECTION FAILURE received- DTM CS connection drops after ASSIGNMENT COMPLETE; RELEASE INDICA-TION not received
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20088: Dual Transfer Mode (DTM)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S12 Definition updated in release:
Counter ID: 001235 Network element name: FORCED RELEASE AFTER FORCED HO
Version: 3.0 NetAct name: FCD_RELEASE_AFTER_FCD_HO_ATT
Description: Number of started forced releases after an unsuccessful forced handover attempt.
Updated: When a BSC starts the forced release procedure due to an unsuccessful forced handover attempt.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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3.237 001236 / CLASS 2 SUBSCRIBER FORCED RELEASE
3.238 001237 / TCH REQUESTS FOR CALL ATTEMPT CLASS 1
Dependencies with other counters:
Operability class:
Related to feature:
BSS20869: Market Expansion Toolkit
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001236 Network element name: CLASS 2 SUBSCRIBER FORCED RELEASE
Version: 3.0 NetAct name: CL_2_SUBS_FORCED_RELEASE
Description: Number of forced releases of class 2 subscriber TCHs.
Updated: When a TCH of a class 2 subscriber is released with cause preemption. The MSC sends CLEAR COMMAND message using the cause Preemption to the BSC.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20869: Market Expansion Toolkit
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001237 Network element name: TCH REQUESTS FOR CALL ATTEMPT CLASS 1
Version: 3.0 NetAct name: TCH_REQUESTS_CALL_ATT_CL_1
Description: Number of TCH channel requests for a call from class 1 subscribers.
Updated: When a TCH is requested for a call by class 1 subscriber. The counter is updated only once for every call attempt, that is, it is not updated for the TCH-TCH handover attempts. In segment environment, if the seizure of a TCH is successful, the counter is updated to the BTS from where the TCH was successfully seizured. If the seizure is unsuccessful, the counter is updated to the BCCH BTS.
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3.239 001238 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 1
3.240 001239 / TCH REQUESTS FOR CALL ATTEMPT CLASS 2
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20869: Market Expansion Toolkit
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001238 Network element name: SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 1
Version: 3.0 NetAct name: SUCC_TCH_SEIZ_CALL_ATT_CL_1
Description: Number of successful TCH channel seizures for a call from class 1 sub-scribers.
Updated: When a TCH is successfully allocated for a class 1 subscriber's call. The counter is updated only once for every call attempt, that is, it is not updated for the TCH-TCH handover attempts.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20869: Market Expansion Toolkit
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001239 Network element name: TCH REQUESTS FOR CALL ATTEMPT CLASS 2
Version: 3.0 NetAct name: TCH_REQUESTS_CALL_ATT_CL_2
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3.241 001240 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 2
Description: Number of TCH channel requests for a call from class 2 subscribers.
Updated: When a TCH is requested for a call by class 2 subscriber. The counter is updated only once for every call attempt, that is, it is not updated for the TCH-TCH handover attempts. In segment environment, if the seizure of a TCH is successful, the counter is updated to the BTS from where the TCH was successfully seizured. If the seizure is unsuccessful, the counter is updated to the BCCH BTS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20869: Market Expansion Toolkit
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001240 Network element name: SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 2
Version: 3.0 NetAct name: SUCC_TCH_SEIZ_CALL_ATT_CL_2
Description: Number of successful TCH channel seizures for a call from class 2 sub-scribers.
Updated: When a TCH is successfully allocated for a class 2 subscriber's call. The counter is updated only once for every call attempt, that is, it is not updated for the TCH-TCH handover attempts.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20869: Market Expansion Toolkit
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
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3.242 001241 / TCH REQUESTS FOR CALL ATTEMPT CLASS 3
3.243 001242 / SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 3
Counter ID: 001241 Network element name: TCH REQUESTS FOR CALL ATTEMPT CLASS 3
Version: 3.0 NetAct name: TCH_REQUESTS_CALL_ATT_CL_3
Description: Number of TCH channel requests for a call from class 3 subscribers.
Updated: When a TCH is requested for a call by class 3 subscriber. The counter is updated only once for every call attempt, that is, it is not updated for the TCH-TCH handover attempts. In segment environment if the seizure of a TCH is successful, the counter is updated to the BTS from where the TCH was successfully seizured. If the seizure is unsuccessful, the counter is updated to the BCCH BTS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20869: Market Expansion Toolkit
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001242 Network element name: SUCCESSFUL TCH SEIZURES FOR CALL ATTEMPT CLASS 3
Version: 3.0 NetAct name: SUCC_TCH_SEIZ_CALL_ATT_CL_3
Description: Number of successful TCH channel seizures for a call from class 3 sub-scribers.
Updated: When a TCH is successfully allocated for a class 3 subscriber's call. The counter is updated only once for every call attempt, that is, it is not updated for the TCH-TCH handover attempts.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20869: Market Expansion Toolkit
Related to standard:
3GPP Measurement name (Clause header):
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3.244 001243 / DR TRAU DOWNGRADE ATTEMPTED IN AMR HO
3.245 001244 / DR TRAU DOWNGRADE ATTEMPT FAILED
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001243 Network element name: DR TRAU DOWNGRADE ATTEMPTED IN AMR HO
Version: 3.0 NetAct name: DR_TRAU_DG_ATT_IN_AMR_HO
Description: Number of intra-BSC AMR FR to AMR HR handovers where the TRAU mode is attempted to be changed from FR to DR TRAU mode before handover.
Updated: When changing from FR TRAU to DR TRAU mode during AMR FR to AMR HR handover in source BTS (The Mode Modify with 8 kbps TRAU bit set is sent to the source BTS).
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20588: TRAU Bicasting in AMR FR/HR Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001244 Network element name: DR TRAU DOWNGRADE ATTEMPT FAILED
Version: 3.0 NetAct name: DR_TRAU_DG_ATT_FAILED
Description: Number of intra-BSC AMR FR to AMR HR handovers where the TRAU mode changing from FR to DR TRAU fails.
Updated: When changing from FR TRAU to DR TRAU mode during AMR FR to AMR HR handover fails in source BTS (The Mode Modify Nack is received from source BTS or supervision timer for the Mode Modify Ack expires).
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
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3.246 001245 / DR TRAU UPGRADE ATTEMPTED IN AMR HO
3.247 001246 / DR TRAU UPGRADE ATTEMPT FAILED
Related to feature:
BSS20588: TRAU Bicasting in AMR FR/HR Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001245 Network element name: DR TRAU UPGRADE ATTEMPTED IN AMR HO
Version: 3.0 NetAct name: DR_TRAU_UG_ATT_IN_AMR_HO
Description: Number of intra-BSC AMR HR to AMR FR handovers where the TRAU mode is attempted to be changed from DR to FR TRAU mode after handover.
Updated: When changing from DR TRAU to FR TRAU mode during AMR HR to AMR FR handover in target BTS (The Mode Modify with 8 kbps TRAU bit cleared is sent to the target BTS).
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20588: TRAU Bicasting in AMR FR/HR Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001246 Network element name: DR TRAU UPGRADE ATTEMPT FAILED
Version: 3.0 NetAct name: DR_TRAU_UG_ATT_FAILED
Description: Number of intra-BSC AMR HR to AMR FR handovers where the TRAU mode changing from DR to FR TRAU fails.
Updated: When changing from DR TRAU to FR TRAU mode during AMR HR to AMR FR handover fails in target BTS(The Mode Modify Nack is received from target BTS or supervision timer for the Mode Modify Ack expires).
Logical type: Sum Trigger type: Event Sampling interval:
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3.248 001247 / SEIZURE IN AMR FR TO HR HO
3.249 001248 / SEIZURE IN AMR HR TO FR HO
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20588: TRAU Bicasting in AMR FR/HR Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001247 Network element name: SEIZURE IN AMR FR TO HR HO
Version: 3.0 NetAct name: SEIZ_AMR_FR_TO_HR
Description: Number of successful TCH seizures in intra-BSC AMR FR to AMR HR handovers.
Updated: When an AMR HR channel is allocated in intra-BSC handover and the source channel mode is AMR FR.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20588: TRAU Bicasting in AMR FR/HR Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001248 Network element name: SEIZURE IN AMR HR TO FR HO
Version: 3.0 NetAct name: SEIZ_AMR_HR_TO_FR
Description: Number of successful TCH seizures in intra-BSC AMR HR to AMR FR handovers.
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Counters of Traffic Measurement
3.250 001249 / INTERNAL AMR HO TO EXTERNAL
3.251 001250 / SUCCESSFUL LRTCH SEIZURES
Updated: When an AMR FR channel is allocated in intra-BSC handover and the source channel mode is AMR HR.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20588: TRAU Bicasting in AMR FR/HR Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001249 Network element name: INTERNAL AMR HO TO EXTERNAL
Version: 3.0 NetAct name: INT_AMR_HO_TO_EXT
Description: Number of intra-BSC AMR FR to AMR HR and AMR HR to AMR FR han-dovers that are changed to MSC controlled in order to reduce break in DL speech path.
Updated: When an intra-BSC AMR FR to AMR HR or AMR HR to AMR FR handover is aborted and handover is changed to external in order to reduce break in DL speech path.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20588: TRAU Bicasting in AMR FR/HR Handover
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001250 Network element name: SUCCESSFUL LRTCH SEIZURES
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3.252 001251 / TIME OF WB-AMR CALLS
Version: 3.0 NetAct name: SUCC_LRTCH_SEIZ
Description: Number of succesful Long Reach TCH seizures.
Updated: When a BSC allocates Long Reach TCH for incoming external handover.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21274: Long Reach TSL (2G BTS)
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S13 Definition updated in release:
Counter ID: 001251 Network element name: TIME OF WB-AMR CALLS
Version: 2.1 NetAct name: TIME_OF_AMR_WB_CALLS
Description: Number of times in a second when WB-AMR calls are active in the cell.
Updated: The BSC keeps record of the time the speech codec version 5 (WB-AMR) that is used.
The time is updated to counter when BSC receives the CHANNEL MODE MODIFY ACK message where WB-AMR changes to another codes or the channel is released. Because the call can be longer than measurement period, counter of one measure-ment period can show longer value than the expected while counter of another mea-surement period shows value that seems to be low.
When values are considered the daily basis allocation time does not exceed the total time of the measurement periods.
Logical type: Sum Trigger type: Duration Sampling interval:
Unit: s Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20960: Wideband AMR
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
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3.253 001252 / TCH REQUESTS FOR WB-AMR
3.254 001253 / TCH SEIZURES FOR WB-AMR
Used from release: S14 Definition updated in release:
Counter ID: 001252 Network element name: TCH REQUESTS FOR WB-AMR
Version: 2.0 NetAct name: TCH_REQUESTS_FOR_AMR_WB
Description: Number of TCH requests for a WB-AMR call.
Updated: When the BSC receives a TCH request in a call setup or HO attempt and speech codec version 5 (WB-AMR) is the most preferred one.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001026: TCH CALL REQ
Operability class:
Related to feature:
BSS20960: Wideband AMR
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S14 Definition updated in release:
Counter ID: 001253 Network element name: TCH SEIZURES FOR WB-AMR
Version: 2.0 NetAct name: TCH_SEIZURES_FOR_AMR_WB
Description: Number of successful WB-AMR TCH seizures when speech codec version 5 (WB-AMR) is in use.
Updated: When a TCH allocated for speech is released and the speech codec version 5 (WB-AMR) is or has been in use during the call.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20960: Wideband AMR
Related to standard:
3GPP Measurement name (Clause header):
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3.255 001254 / TCH ENDED DUE TRANSCODER FAILURE CODEC 5
3GPP Measurement type:
Exceptions to related standard:
Used from release: S14 Definition updated in release:
Counter ID: 001254 Network element name: TCH ENDED DUE TRANSCODER FAILURE CODEC 5
Version: 2.0 NetAct name: TCH_ENDED_TRANSC_FAIL_CODEC_5
Description: Number of radio TCH transactions that are ended because of a transcoder failure when the speech codec version 5 (WB-AMR) is in use.
Updated: When a TCH transaction ends because of a transcoder failure during a call attempt or handover and the speech codec version 5 (WB-AMR) is in use.
In case of call attempt, transaction failures can also happen in a situation when the timer T3109 expires in a BSC in call release phase while waiting for the Release Indi-cation. The MS subscriber does not see these failures caused by the T3109 expiry as real drop calls.
In case of handover the transcoder failure can happen before a message is received from the MS stating that the HO or assignment is completed.
This counter is updated together with one of the transcoder failure counters 001029: TCH TR FAIL, 001030: TCH TR FAIL SOURCE or 001031: TCH TR FAIL TARGET.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001029: TCH TR FAIL
001030: TCH TR FAIL SOURCE
001031: TCH TR FAIL TARGET
Operability class:
Related to feature:
BSS20960: Wideband AMR
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S14 Definition updated in release:
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3.256 001255 / CODEC TYPE CHANGE FROM AMR TO WB-AMR SUCCESSFUL
3.257 001256 / CODEC TYPE CHANGE FROM WB-AMR TO AMR SUCCESSFUL
Counter ID: 001255 Network element name: CODEC TYPE CHANGE FROM AMR TO WB-AMR SUCCESSFUL
Version: 2.0 NetAct name: SUCC_CHANGE_AMR_TO_AMR_WB
Description: Number of successful codec type changes from AMR to WB-AMR.
Updated: When a CHANNEL MODE MODIFY ACK message is received by BSC and the codec type change is successful.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20960: Wideband AMR
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S14 Definition updated in release:
Counter ID: 001256 Network element name: CODEC TYPE CHANGE FROM WB-AMR TO AMR SUCCESSFUL
Version: 2.0 NetAct name: SUCC_CHANGE_AMR_WB_TO_AMR
Description: Number of successful codec type changes from WB-AMR to AMR.
Updated: When a CHANNEL MODE MODIFY ACK message is received by BSC and the codec type change is successful.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS20960: Wideband AMR
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
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3.258 001257 / GPRS TERRITORY UPGRADE REQUEST DUE DLDC
3.259 001258 / GPRS TERRITORY UPGRADE DUE DLDC REJECT
Used from release: S14 Definition updated in release:
Counter ID: 001257 Network element name: GPRS TERRITORY UPGRADE REQUEST DUE DLDC
Version: 1.0 NetAct name: GPRS_TER_UPGRD_REQ_DUE_DLDC
Description: Number of GPRS territory upgrade requests with DLDC reason.
Updated: When Radio Resource Management receives a request from a Packet Con-troller Unit(PCU) for new radio time slots to be added into the GPRS territory and the request is identified with DLDC specific reason for upgrade. The PCU can request an upgrade after BSC has fulfilled the default territory defined by the operator parame-ters. Counter is updated only when DLDC TRX is required and the second TRX is tried to be added to the territory.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001174: GPRS TER UPGRD REQ
Operability class:
Related to feature:
BSS21343: DLDC Territory Procedures
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001258 Network element name: GPRS TERRITORY UPGRADE DUE DLDC REJECT
Version: 1.0 NetAct name: GPRS_TER_UPGRD_DUE_DLDC_REJ
Description: Number of rejected GPRS territory upgrades with DLDC reason.
Updated: When Radio Resource Management rejects territory upgrade request by itself or it receives DLDC specific rejection from the Packet Controller Unit for the ter-ritory upgrade request. Counter is updated only when DLDC TRX was required and upgrading of the second TRX to territory has failed.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counters of Traffic Measurement
3.260 001259 / TCH REQUEST WITHIN DL RX LEVEL WINDOW
3.261 001260 / TCH SEIZURE IN BCCH DUE TO DL RX LEVEL
Dependencies with other counters:
Operability class:
Related to feature:
BSS21343: DLDC Territory Procedures
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001259 Network element name: TCH REQUEST WITHIN DL RX LEVEL WINDOW
Version: 1.0 NetAct name: TCH_REQ_IN_DL_RX_LEV_WINDOW
Description: Number of TCH requests with DL RX level being within DL RX level window. All TCH requests (call setups and handovers) having DL RX level within DL RX level window are included. DL RX level measurement is never present in external handover requests, so external handovers are not visible in this counter.
Updated: Counter is updated when TCH is requested and DL RX level is within DL RX level window.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21222: Energy Optimised TCH Allocation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001260 Network element name: TCH SEIZURE IN BCCH DUE TO DL RX LEVEL
Version: 1.0 NetAct name: TCH_SEIZ_BCCH_DUE_RX_LEV
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3.262 001261 / TCH REQUEST OUT OF DL RX LEVEL WINDOW
Description: Number of TCH seizures in BCCH layer due to DL RX level being within DL RX level window. TCH seizures in call setups and internal handovers are included in this counter. DL RX level measurement is never present in external handovers, so external handovers are not visible in this counter.
Updated: Counter is updated when TCH is allocated in BCCH TRX and DL RX level is within DL RX level window.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21222: Energy Optimised TCH Allocation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001261 Network element name: TCH REQUEST OUT OF DL RX LEVEL WINDOW
Version: 1.0 NetAct name: TCH_REQ_OUT_DL_RX_LEV_WINDOW
Description: Number of TCH requests with DL RX level being out of DL RX level window. All TCH requests (call setups and handovers) having DL RX level out of DL RX level window are included. DL RX level measurement is never present in external handover requests, so external handovers are not visible in this counter.
Updated: Counter is updated when TCH is requested and DL RX level is out of DL RX level window.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21222: Energy Optimised TCH Allocation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
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Counters of Traffic Measurement
3.263 001262 / TCH SEIZURE IN NON-BCCH DUE TO DL RX LEVEL
3.264 001263 / DHR MULTIPLEXING ATTEMPTS
Counter ID: 001262 Network element name: TCH SEIZURE IN NON-BCCH DUE TO DL RX LEVEL
Version: 1.0 NetAct name: TCH_SEIZ_NON_BCCH_DUE_RX_LEV
Description: Number of TCH seizures in non-BCCH layer due to DL RX level being out of DL RX level window. TCH seizures in call setups and internal handovers are included in this counter. DL RX level measurement is never present in external han-dovers, so external handovers are not visible in this counter.
Updated: Counter is updated when TCH is allocated in non-BCCH TRX and DL RX level is out of DL RX level window.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21222: Energy Optimised TCH Allocation
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001263 Network element name: DHR MULTIPLEXING ATTEMPTS
Version: 1.0 NetAct name: DHR_MULTIPLEXING_ATTEMPTS
Description: Number of times the load criteria for OSC Double Half Rate multiplexing is triggered.
Updated: When the Radio Resource Management concludes the need for double half rate multiplexing at the reception of Rx level and power control information from the HO&PC algorithm.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21309: OSC Half Rate with SAIC MS
Related to standard:
3GPP Measurement name (Clause header):
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3.265 001264 / DHR MULTIPLEXING FAILURE DUE TO TCH RESOURCE
3.266 001265 / CSDAP RESOURCE ALLOCATION ATTEMPTS FOR DHR
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001264 Network element name: DHR MULTIPLEXING FAILURE DUE TO TCH RESOURCE
Version: 1.0 NetAct name: DHR_MULTIPLX_FAIL_DUE_TCH_RES
Description: Number of times a suitable pair of AMR calls for OSC Double Half Rate multiplexing cannot be found.
Updated: When the Radio Resource Management fails to allocate calls for double half rate multiplexing.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21309: OSC Half Rate with SAIC MS
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001265 Network element name: CSDAP RESOURCE ALLOCA-TION ATTEMPTS FOR DHR
Version: 1.0 NetAct name: CSDAP_RES_ALLOC_ATT_FOR_DHR
Description: Number of CSDAP resource allocation attempts for OSC Double Half Rate.
Updated: When Radio Resource Management requests CSDAP resources for double half rate multiplexing.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
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Counters of Traffic Measurement
3.267 001266 / DHR MULTIPLEXING FAILURE DUE TO CSDAP RESOURCE
3.268 001267 / DHR MULTIPLEXING FAILURE DUE TO OTHER REASON
Related to feature:
BSS21309: OSC Half Rate with SAIC MS
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001266 Network element name: DHR MULTIPLEXING FAILURE DUE TO CSDAP RESOURCE
Version: 1.0 NetAct name: DHR_MPLX_FAIL_DUE_CSDAP_RES
Description: Number of times OSC Double Half Rate multiplexing is triggerred but CSDAP resource allocation fails because of- CSDAP congestion- CSDAP being out of order due to failure- CSDAP hunting timer expiry or- CSDAP hunting error.
Updated: After double half rate multiplexing attempt has been cancelled.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21309: OSC Half Rate with SAIC MS
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001267 Network element name: DHR MULTIPLEXING FAILURE DUE TO OTHER REASON
Version: 1.1 NetAct name: DHR_MPLX_FAIL_DUE_OTHER
Description: Number of times double half rate multiplexing is rejected because the state of the call is unsuitable or the licence capacity limit has been reached.
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3.269 001268 / TCH REQ REJ DUE ABIS CONG
Updated: When the Radio Resource Management rejects the triggered double half rate multiplexing procedure because the licensed capacity is already fully in use, or when the Call Control rejects the initiated double half rate multiplexing handover request because the state of the call is unsuitable.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21309: OSC Half Rate with SAIC MS
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001268 Network element name: TCH REQ REJ DUE ABIS CONG
Version: 1.0 NetAct name: TCH_REQ_REJ_DUE_ABIS_CONG
Description: Number of requests for TCHs that are rejected because of Abis conges-tion.
Updated: Updated after TCH request is rejected because of Abis congestion during the call setup and conversation phase including handover rejections.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
Operability class:
Related to feature:
BSS21454: Packet Abis over IP/Ethernet
BSS21440: Packet Abis over TDM
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
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Counters of Traffic Measurement
3.270 001269 / CALL SETUP REJ DUE ABIS CONG
3.271 001270 / GPRS TERR UG REJ DUE ABIS
Counter ID: 001269 Network element name: CALL SETUP REJ DUE ABIS CONG
Version: 1.0 NetAct name: CALL_SETUP_REJ_DUE_ABIS_CONG
Description: Number of requests for TCH that are rejected because of Abis conges-tion during call setup before connection acknowledgement.
Updated: Updated after TCH request is rejected because of Abis congestion during call setup before ASSIGNMENT COMPLETE message sent to MSC.This counter is also updated in intra-cell or inter-cell handover, if the TCH request is rejected because of Abis congestion before conversation phase. In case of an external handover and handovers after external handover this counter is not incre-mented. TCH REQUEST REJECTS DUE ABIS CONGESTION 001268 is updated along with this counter.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001141: TCH SEIZ FAILS DUE TO CONG
Operability class:
Related to feature:
BSS21454: Packet Abis over IP/Ethernet
BSS21440: Packet Abis over TDM
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001270 Network element name: GPRS TERR UG REJ DUE ABIS
Version: 1.0 NetAct name: GPRS_TERR_UG_REJ_DUE_ABIS
Description: Number of GPRS territory upgrade requests that have been rejected because of Packet Abis congestion.
Updated: Updated when territory upgrade request has been rejected because of Packet Abis congestion.BSC can start rejecting GPRS upgrade requests when BSC receives congestion detection information from BTS that is based on exceeding Abis Thoughtput BU2 threshold or Percentage of packet loss of Abis PL2 threshold. BSC stops rejecting GPRS upgrade requests due to congestion when BTS informs that measured congestion levels are lower than related hysteresis BU2_Hy or PL2_Hy thresholds.
Logical type: Sum Trigger type: Event Sampling interval:
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3.272 001271 / SPARE001271
3.273 001272 / TCH REQUEST REJECT DUE TO ETP OVERLOAD
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21454: Packet Abis over IP/Ethernet
BSS21440: Packet Abis over TDM
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001271 Network element name: SPARE001271
Version: 1.0 NetAct name: SPARE001271
Description: Reserved for future use.
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001272 Network element name: TCH REQUEST REJECT DUE TO ETP OVERLOAD
Version: 1.0 NetAct name: TCH_REQ_REJ_DUE_ETP_OVERLOAD
Description: Number of requests for TCHs that are rejected because of ETP overload.
Updated: Updated after TCH request is rejected because of ETP overload.Counter 001011 is updated along this counter.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
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Counters of Traffic Measurement
3.274 001273 / CALL SETUP REJECT DUE TO ETP OVERLOAD
3.275 001274 / MO LS CALL SUCCESSFUL
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
Operability class:
Related to feature:
BSS21454: Packet Abis over IP/Ethernet
BSS21440: Packet Abis over TDM
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001273 Network element name: CALL SETUP REJECT DUE TO ETP OVERLOAD
Version: 1.0 NetAct name: CALL_SETUP_REJ_DUE_ETP_OVER
Description: Number of TCH seizure failures because of ETP overload during call setup before connection acknowledgement.
Updated: When TCH seizure failures due to ETP overload during call setup before connection acknowledgement.This counter is also updated in intra-cell or inter-cell handover, if the TCH attempt fails because of ETP overload before conversation phase. In case of an external handover and handovers after external handover this counter is not incremented.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001011: TCH REQUEST REJECTED DUE TO LACK
Operability class:
Related to feature:
BSS21454: Packet Abis over IP/Ethernet
BSS21440: Packet Abis over TDM
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001274 Network element name: MO LS CALL SUCCESSFUL
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3.276 001275 / MT LS CALL SUCCESSFUL
Version: 1.1 NetAct name: MO_LS_CALL_SUCCESS
Description: Number of successful basic mobile originated speech calls, which have a locally switched speech path
Updated: When local switching establishment is successful for mobile originated calls
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21327: Local Switching For Packet Abis
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001275 Network element name: MT LS CALL SUCCESSFUL
Version: 1.1 NetAct name: MT_LS_CALL_SUCCESS
Description: Number of successful basic mobile terminated speech calls, which have a locally switched speech path
Updated: When local switching establishment is successful for mobile terminated calls
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21327: Local Switching For Packet Abis
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
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Counters of Traffic Measurement
3.277 001276 / LS ESTABLISHMENT UNSUCCESSFUL DUE TO CODEC
3.278 001277 / LS RELEASE DUE TO INTER HO OUTSIDE LS AREA
Counter ID: 001276 Network element name: LS ESTABLISHMENT UNSUCCESSFUL DUE TO CODEC
Version: 1.1 NetAct name: LS_ESTAB_UNSUCC_DUE_CODEC
Description: Number of unsuccessful Local Switching establishments due to different speech codecs on local call peers
Updated: Updated after TCH allocation, when local switching cannot be established because of mismatch between chosen codec and codec used by peer
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21327: Local Switching For Packet Abis
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001277 Network element name: LS RELEASE DUE TO INTER HO OUTSIDE LS AREA
Version: 1.1 NetAct name: LS_REL_DUE_INTER_HO_OUT_LS
Description: Number of Local Switching releases due to inter-cell handover outside of the LS Area
Updated: When inter-cell handover is triggered outside LS area for a locally switched call. This is updated before handover command is sent to mobile
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21327: Local Switching For Packet Abis
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
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3.279 001278 / LS RELEASE DUE TO EXTERNAL HO
3.280 001279 / LS RELEASE DUE TO SUPPLEM SERVICE ESTABLISHMENT
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001278 Network element name: LS RELEASE DUE TO EXTERNAL HO
Version: 1.1 NetAct name: LS_REL_DUE_EXTERNAL_HO
Description: Number of Local Switching releases due to external handover
Updated: When inter-bsc handover is triggered for a locally switched call. This is updated before handover command is sent to mobile
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21327: Local Switching For Packet Abis
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001279 Network element name: LS RELEASE DUE TO SUPPLEM SERVICE ESTABLISHMENT
Version: 1.1 NetAct name: LS_REL_DUE_SUPPL_SERV_ESTAB
Description: Number of Local Switching releases due to establishment of supplemen-tary services, which require speech path control of MSC
Updated: When local-switching is released due to start of supplementary services
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21327: Local Switching For Packet Abis
Related to standard:
3GPP Measurement name (Clause header):
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Counters of Traffic Measurement
3.281 001280 / SPARE001280
3.282 001281 / SPARE001281
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001280 Network element name: SPARE001280
Version: 1.0 NetAct name: SPARE001280
Description: Reserved for future use.
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001281 Network element name: SPARE001281
Version: 1.0 NetAct name: SPARE001281
Description: Reserved for future use.
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
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3.283 001282 / SPARE001282
3.284 001283 / SPARE001283
3.285 001284 / SPARE001284
Counter ID: 001282 Network element name: SPARE001282
Version: 1.0 NetAct name: SPARE001282
Description: Reserved for future use.
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001283 Network element name: SPARE001283
Version: 1.0 NetAct name: SPARE001283
Description: Reserved for future use.
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001284 Network element name: SPARE001284
Version: 1.0 NetAct name: SPARE001284
Description: Reserved for future use.
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Counters of Traffic Measurement
3.286 001285 / SPARE001285
3.287 001286 / SPARE001286
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001285 Network element name: SPARE001285
Version: 1.0 NetAct name: SPARE001285
Description: Reserved for future use.
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001286 Network element name: SPARE001286
Version: 1.0 NetAct name: SPARE001286
Description: Reserved for future use.
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
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3.288 001287 / SPARE001287
3.289 001288 / DFR MULTIPLEXING ATTEMPTS IN 8K TRAU MODE
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001287 Network element name: SPARE001287
Version: 1.0 NetAct name: SPARE001287
Description: Reserved for future use.
Updated:
Logical type: Trigger type: Sampling interval:
Unit: Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature: Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001288 Network element name: DFR MULTIPLEXING ATTEMPTS IN 8K TRAU MODE
Version: 1.0 NetAct name: DFR_MULTIPLX_ATT_8K_TRAU_MODE
Description: Number of DFR multiplexing attempts in 8k TRAU mode
Updated: When Radio Resource Management starts DFR multiplexing attempt to 8k TRAU mode. General counter DFR MULTIPLEXING ATTEMPS contains also DFR multiplexing attempts to 8k TRAU mode.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
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Counters of Traffic Measurement
3.290 001289 / TRAU DOWNGRADE ATTEMPTED IN DFR MULTI-PLEXING
3.291 001290 / TRAU DOWNGRADE FAILED IN DFR MULTIPLEX-ING
Related to feature:
BSS21325: 8K TRAU FOR OSC AMR FR
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001289 Network element name: TRAU DOWNGRADE ATTEMPTED IN DFR MULTIPLEXING
Version: 1.0 NetAct name: TRAU_DG_ATT_IN_DFR_MULTIPLX
Description: Number of DFR multiplexing procedures where the TRAU mode is attempted to be changed from FR TRAU to 8k TRAU mode in target channel before multiplexing handover
Updated: When target channel is changed from FR TRAU to 8k TRAU mode during DFR multiplexing. BSC Call Control modifies the target channel to 8k TRAU mode.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21325: 8K TRAU FOR OSC AMR FR
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001290 Network element name: TRAU DOWNGRADE FAILED IN DFR MULTIPLEXING
Version: 1.0 NetAct name: TRAU_DG_FAIL_IN_DFR_MULTIPLX
Description: Number of DFR multiplexing procedures that have failed because the TRAU mode changing from FR TRAU to 8k TRAU fails in target channel.
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3.292 001291 / TRAU UPGRADE ATTEMPTED IN DFR DEMULTI-PLEXING
Updated: When the changing target channel from FR TRAU to 8k TRAU mode fails during DFR multiplexing. BSC Call Control does not receive acknowledge to modifi-cation request or, receives negative acknowledge from BTS. This counter is also updated if the decrease of connection bandwidth in group switch fails in BSC.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21325: 8K TRAU FOR OSC AMR FR
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001291 Network element name: TRAU UPGRADE ATTEMPTED IN DFR DEMULTIPLEXING
Version: 1.0 NetAct name: TRAU_UG_ATT_IN_DFR_DEMULTIPLX
Description: Number of DFR demultiplexing, neighbour OSC sub channel handover and, neighbour OSC sub channel release procedures where TRAU mode is attempted to be changed from 8k TRAU to 16k TRAU mode in source channel after the procedure.
Updated: When source channel is changed from 8k TRAU to 16k TRAU mode after DFR demultiplexing or, neighbour OSC sub channel handover or, neighbour OSC sub channel release procedure. BSC Call Control modifies the source channel to FR TRAU mode.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21325: 8K TRAU FOR OSC AMR FR
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
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Counters of Traffic Measurement
3.293 001292 / TRAU UPGRADE FAILED IN DFR DEMULTIPLEX-ING
3.294 001293 / DFR MULTIPLEXING ATTEMPTS
Counter ID: 001292 Network element name: TRAU UPGRADE FAILED IN DFR DEMULTIPLEXING
Version: 1.0 NetAct name: TRAU_UG_FAIL_IN_DFR_DEMULTPLX
Description: Number of DFR demultiplexing, neighbour OSC sub channel handover and, neighbour OSC sub channel release procedures where the source channel is left in 8k TRAU mode because TRAU mode changing from 8k TRAU to FR TRAU fails.
Updated: When changing source channel from 8k TRAU to FR TRAU mode fails after DFR demultiplexing or, neighbour OSC sub channel handover or, neighbour OSC sub channel release procedure. BSC Call Control does not receive acknowledge to mod-ification request or, receives negative acknowledge from BTS.This counter is also updated if the increase of connection bandwidth in group switch fails in BSC.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21325: 8K TRAU FOR OSC AMR FR
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001293 Network element name: DFR MULTIPLEXING ATTEMPTS
Version: 1.0 NetAct name: DFR_MULTIPLEXING_ATTEMPTS
Description: Number of times the load criteria for double full rate multiplexing has trig-gered.
Updated: When the Radio Resource Management concludes the need for double full rate multiplexing at the reception of Rx level and power control information from the HO&PC algorithm.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
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3.295 001294 / DFR MULTIPLEXING FAILURE DUE TO TCH RESOURCE
3.296 001295 / CSDAP RESOURCE ALLOCATION ATTEMPTS FOR DFR
Related to feature:
BSS21534: OSC Full Rate with SAIC MS
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001294 Network element name: DFR MULTIPLEXING FAILURE DUE TO TCH RESOURCE
Version: 1.0 NetAct name: DFR_MULTIPLX_FAIL_DUE_TCH_RES
Description: Number of times a suitable pair of AMR FR calls for double full rate mul-tiplexing cannot be found.
Updated: When the Radio Resource Management fails to allocate calls for double full rate multiplexing at the reception of Rx level and power control information from the HO&PC algorithm.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21534: OSC Full Rate with SAIC MS
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001295 Network element name: CSDAP RESOURCE ALLOCA-TION ATTEMPTS FOR DFR
Version: 1.0 NetAct name: CSDAP_RES_ALLOC_ATT_FOR_DFR
Description: Number of CSDAP resource allocation attempts for OSC Full Rate.
Updated: When Radio Resource Management requests CSDAP resources for double full rate multiplexing.
Logical type: Sum Trigger type: Event Sampling interval:
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3.297 001296 / DFR MULTIPLEXING FAILURE DUE TO CSDAP RESOURCE
3.298 001297 / DFR MULTIPLEXING FAILURE DUE TO OTHER REASON
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21534: OSC Full Rate with SAIC MS
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001296 Network element name: DFR MULTIPLEXING FAILURE DUE TO CSDAP RESOURCE
Version: 1.0 NetAct name: DFR_MPLX_FAIL_DUE_CSDAP_RES
Description: double full rate multiplexing has triggerred but CSDAP resource alloca-tion fails because of CSDAP congestion, CSDAP being out of order due to failure, CSDAP hunting timer expiry or CSDAP hunting error.
Updated: After double full rate multiplexing attempt has been cancelled.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21534: OSC Full Rate with SAIC MS
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001297 Network element name: DFR MULTIPLEXING FAILURE DUE TO OTHER REASON
Version: 1.0 NetAct name: DFR_MPLX_FAIL_DUE_OTHER
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3.299 001298 / TCH REQUEST REJECTED DUE TO TX POWER
Description: Number of times double full rate multiplexing is rejected due to unsuitable state of the call
Updated: When Call Control rejects the initiated double full rate multiplexing handover request due to unsuitable state of the call.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21534: OSC Full Rate with SAIC MS
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001298 Network element name: TCH REQUEST REJECTED DUE TO TX POWER
Version: 1.0 NetAct name: TCH_REQ_REJ_DUE_TO_TX_POWER
Description: Number of rejected TCH requests when not enough TX power available.
Updated: When BSC rejects traffic channel allocation because there is not enough TX power available in any Traffic channel
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001010: TCH REQUEST SUCCESS AND UNSUCCESS
001011: TCH REQUEST REJECTED DUE TO LACK
Operability class:
Related to feature:
BSS21507: Flexible MCPA TX Power Pooling
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
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3.300 001299 / POWER BALANCING HANDOVER REQUESTED
3.301 001300 / POWER BALANCING HO REQUEST REJECTED
Counter ID: 001299 Network element name: POWER BALANCING HANDOVER REQUESTED
Version: 1.0 NetAct name: POWER_BALANCING_HO_REQUESTED
Description: Number of times the BTS has informed about too high compression rate.
Updated: When BSC receives message COMPRESSION RATE INDICATION from BTS.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21507: Flexible MCPA TX Power Pooling
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001300 Network element name: POWER BALANCING HO REQUEST REJECTED
Version: 1.0 NetAct name: POWER_BALANCING_HO_REQ_REJ
Description: Number of rejected requests for Power balancing handover due to no better channel available.
Updated: When BSC does not start the power balancing handover procedure because there is no channel available with smaller TX power sum than the source channel.When BSC telecom rejects traffic channel allocation request for power balancing handover because there is not channel available with smaller TX power sum than the source channel.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
Operability class:
Related to feature:
BSS21507: Flexible MCPA TX Power Pooling
Related to standard:
3GPP Measurement name (Clause header):
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3.302 001301 / GPRS TER UG REJ DUE LACK TX POWER
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
Counter ID: 001301 Network element name: GPRS TER UG REJ DUE LACK TX POWER
Version: 1.0 NetAct name: GPRS_TER_UG_REJ_DUE_LACK_POW
Description: Number of rejected territory upgrade requests because there is not enough TX power available.
Updated: When Radio Resource Management rejects a GPRS territory upgrade request of the PCU because there is not enough TX power available.
Logical type: Sum Trigger type: Event Sampling interval:
Unit: Integer number Range: Example values:
Dependencies with other counters:
001174: GPRS TER UPGRD REQ
Operability class:
Related to feature:
BSS21507: Flexible MCPA TX Power Pooling
Related to standard:
3GPP Measurement name (Clause header):
3GPP Measurement type:
Exceptions to related standard:
Used from release: S15 Definition updated in release:
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4 Signalling charts of Traffic MeasurementThe following figures show the signalling charts of Traffic Measurement:
Figure 1 Basic call without counters
Immediate assign command
BSC:MS: BTS: MSC:
PagingPaging commandPaging request
Radio access part on CCCH
Paging part
Channel request Channel required
Channel activationChannel activation ack
Immediate assign
DDCH establishment part
Sabm Establish indication Paging response
Ciphering mode complete
SDCCH signalling part
SetupSetupCall proceeding Call proceeding
Assignment requestPhysical context requestPhysical context confirm
Channel activationChannel activation ack
Assignment command
TCH seized, FACCH signalling part
Ua
Sabm Establish indicationUa
Assignment complete Assignment completeRf channel release
Rf channel release ackAlert AlertConnect Connect
Connect ackConnect ack
Conversation phase
Release completeClear command
Clear completeChannel releaseDeactivate SACCHDisc
Ua Release indicationRf channel release
Rf channel release ack
Release by MS
Disconnect DisconnectReleaseRelease
Release complete
Authentification requestAuthentification requestAuthentification response Authentification response
Identification requestIdentification requestIdentification response Identification response
Ciphering mode commandEncryption commandCiphering mode commandCiphering mode complete
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Figure 2 Basic call with counters
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Figure 3 Basic call with priority subscriber
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Figure 4 FACCH call setup due to SDCCH congestion without counters
BSC:MS: MSC:BTS:
Mode modify request
Channel request Channel required
Channel activation
Channel activation ack
Immediate assign command
Immediate assign
SetupSetup
Call proceeding Call proceeding
Assignment request
Mode modify ack
Channel mode modification
Channel mode modification ack
Assignment complete
Alert Alert
Connect Connect
Connect ackConnect ack
Channel mode modification
Channel mode modification ack
Conversation phase
Release by MS
DDCH establishment part
TCH, FACCH signalling part
Radio access part on CCCH
Paging part
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Figure 5 FACCH call setup due to SDCCH congestion with counters
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Figure 6 FACCH call setup due to SDCCH congestion, no free TCH channel. Optional software directed retry is not activated
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Figure 7 Normal release
Radio access part on CCCH
Paging part
DDCH establishment part
TCH seized, FACCH signalling part
Conversation phase
Release by MS
Disconnect Disconnect
ReleaseRelease
Release complete Release complete
Clear command
Channel release
Deactive sacch
Disc
Ua
Release indication
Rf channel rel
Rf channel rel ack
Clear complete
SDCCH signalling part
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
BSC:MS: MSC:BTS:
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Figure 8 Basic call, no free TCH and queuing or directed retry is not allowed
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Figure 9 Successful TCH queuing
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Figure 10 Basic call, no free TCHs, unsuccessful queuing and directed retry not acti-vated
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Figure 11 TCH assignment failure due to MSC's inability to switch circuit pool
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Figure 12 Unsuccessful TCH activation
BTS: MSC:MS: BSC:
Assignment failure
Clear command
Channel release
Deactive SACCH
Disc
Ua
Release indication
Clear complete
Basic call signalling, see figure 1
TCH activation fail 001028
SDCCH Rf channel rel
SDCCH Rf channel rel ack
Rf channel rel ack
Physical context request
Assignment request
Physical context confirm
Channel activation
Channel activation nack
Rf channel rel
Failure
TCH transact end due ch act fail 001081
001133
001134
FR TCH transactions failorHR TCH transactions fail
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
001108
001109
001110
001111
001112
001113
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Figure 13 Unsuccessful TCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message
MSC:BSC:BTS:MS:
TCH rel due BSS fail 001140
TCH transact end due BSS probl 001012
Start timer T9103
SDCCH Rf channel rel
SDCCH Rf channel rel ack
Rf channel rel ack
Assignment failure
Clear command
Channel release
Deactive SACCHDisc
Ua Release indication
Clear complete
Physical context request
Assignment request
Physical context confirm
Channel activation
Rf channel rel
Basic call signalling, see figure 1
TCH transact end due Abis fail 001045
TCH transact end due Abis fail 001084
001133
001134
FR TCH transactions failorHR TCH transactions fail
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
Timer T9103 expires
TCH rel due to BSS fail PH 2-3 001199
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Figure 14 TCH assignment failure
MSC:BSC:BTS:MS:
SDCCH Rf channel rel
SDCCH Rf channel rel ack
Assignment failure
Clear command
Channel release
Deactive SACCHDisc
UaRelease indication
Clear complete
Failure
TCH Rf channel rel ack
Assignment request
Assignment command
Assignment failure
TCH Rf channel release
Physical context request
Physical context confirm
Channel activation
Channel activation ack
Basic call signalling, see figure 1
SDCCH trans end due radio fail 001003
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
001133
001134
FR TCH transactions failorHR TCH transactions fail
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Figure 15 TCH assignment failure, MSC sends CLEAR_COMMAND message
MSC:BSC:BTS:MS:
SDCCH Rf channel rel
SDCCH Rf channel rel ack
TCH Rf channel rel ack
Radio access part on CCCH
Paging part
TCH seized, FACCH signalling part
Sabm
Disc
DDCH establishment part
Ua
Channel release
Release indication
TCH Rf channel release
Establish indicationClear command
Clear complete
Deactive SACCH
SDCCH signalling part
TCH transact end due BSS probl 001012
TCH transact end due A int fail 001051
TCH transact end due A int fail 001087
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
001133
001134
FR TCH transactions failorHR TCH transactions fail
TCH rel due BSS fail 001140
TCH rel due to BSS fail PH 2-3 001199
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Figure 16 CONNECTION_FAILURE message with cause transcoder_failure during a call
MSC:BSC:BTS:MS:
Failure
TCH transact end due transc fail 001029
Rf channel rel ack
Conversation phase
Clear request
Disc
Ua
Channel release
Release indication
Rf channel release
Connection failure
Clear command
Clear complete
Deactive SACCH
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
001127
001128
001129
001130
001131
001132
TCH transc fail FR speech ver 1orTCH transc fail FR speech ver 2orTCH transc fail FR speech ver 3orTCH transc fail HR speech ver 1orTCH transc fail HR speech ver 2orTCH transc fail HR speech ver 3
001133
001134
FR TCH transactions failorHR TCH transactions fail
Drop after TCH assign 001202
Drop TCH asscompl to RFCH rel 001204
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Figure 17 TRX or TSL is blocked with different causes during a call
Figure TRX or TSL is blocked with different causes during a call: Counters updated with cause LAPD_failure: 001012 and 001046. Counters updated with cause BTS_failure: 001012 and 001047. Counter 001048 is updated with cause USER_actions. Counter 001050 is updated with cause NETW_actions. Counters updated with cause ABIS_failure: 001012, 001045 and 001084. Counter 001108, 001109, 001110, 001111, 001112 or 001113 and counter 001133 or 001134 are always updated with these causes.
MSC:BSC:BTS:MS:
TCH transact end due LAPD fail 001046
TCH Abis probl 001045
TCH transact end due BSS probl 001012
TRX / TSL is blocked
Clear complete
Rf channel rel ack
Conversation phase
Clear request
Disc
Ua
Channel release
Rf channel release
Clear command
Deactive SACCH
TCH transact end due BTS fail 001047
TCH transact end due USER act 001048
TCH transact end due NETW act 001050
TCH transact end due Abis int fail 001084
001133
001134
FR TCH transactions failorHR TCH transactions fail
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
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Figure 18 SDCCH congestion, FACCH call setup is not activated
BSC:
Unsucc imm ass SDCCH att001155
SDCCH seiz att for MOC001135 or
SDCCH seiz att for MTC
001136
SDCCH attempts
001000
Seiz att with busy SDCCH
001001
MS: MSC:BTS:
Immediate assignment reject
Channel required
Channel request
Paging part
Radio access part on CCCH
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Figure 19 Unsuccessful SDCCH activation
BSC:
SDCCH transact end due ch act fail
001072
SDCCH activation failure
001027
MS: MSC:BTS:
Failure
Channel request
Channel required
Channel activation
Channel activation nack
Rf channel release
Rf channel release ack
Immediate assignment reject
Radio access part on CCCH
Paging part
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Figure 20 Unsuccessful SDCCH activation, timer expires while waiting for CHANNEL_ACTIVATION_ACK message
MSC:BSC:BTS:MS:
SDCCH transact end dueBSS fail
Start timer T9103
Channel request
Channel required
Channel activation
Paging part
Rf channel release
Rf channel release ack
Immediate assignment reject
Radio access part on CCCH
Timer T9103 expires
SDCCH transact end duefail in Abis int
SDCCH transact end due fail in Abis intduring a call
001002
001033
001075
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Figure 21 Connection failure during SDCCH assignment
BTS:
Failure
MSC:MS: BSC:
SDCCH transact ended due radio fail
001003
Channel request Channel required
Channel activation
Channel activation ack
Immediate assign command
Immediate assign
Connection failure
Channel release
Deactive SACCHDisc
Ua
Release indication
Rf channel release
Rf channel release ack
Radio access part on CCCH
Paging part
DDCH establishment part
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Figure 22 SDCCH assignment failure
BTS: MSC:MS: BSC:
SDCCH transact end due fail in A -intduring a call
001078
SDCCH transact end due fail in A -int001034
SDCCH transact end due BSS fail001002
Failure
Assignment request
Channel release
Deactive SACCHDisc
Ua
Release indication
Rf channel release
Rf channel release ack
Assignment failure
Clear command
Clear complete
Basic call signalling, see figure 1
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Figure 23 Unsuccessful SDCCH activation, timer expires while waiting for PHYSICAL_CONTEXT_CONFIRM message
MSC:BSC:BTS:MS:
SDCCH transact end dueBSS fail
SDCCH transact end duefail in Abis int
SDCCH transact end due fail in Abis intduring a call
001002
001033
001075
Timer T9108 expires
Start timer T9108
Assignment request
Physical context request
Assignment failure
Basic call signalling, see figure 1
Clear command
Rf channel release
Rf channel release ack
Channel release
Deactive SACCHDisc
UaRelease indication
Clear complete
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Figure 24 TRX/TSL is blocked with different causes during an SDCCH channel acti-vation
Figure TRX/TSL is blocked with different causes during an SDCCH channel activation: Counters updated with cause LAPD_failure: 001002 and 001035. Counters updated with cause BTS_failure: 001002 and 001036. Counter 001037 is updated with cause USER_actions. Counter 001039 is updated with cause NETW_actions. Counters updated with cause ABIS_failure: 001002, 001033 and 001075.
MSC:BSC:BTS:MS:
SDCCH transact end dueBSS fail
SDCCH transact end duefail in Abis int
001002
001033
TRX / TSL is blocked
Channel requestChannel required
Channel activation
Paging part
Rf channel release
Rf channel release ack
Immediate assignment reject
SDCCH transaction end dueLAPD fail 001035
SDCCH transact ended dueBTS fail 001036
SDCCH transact end dueuser actions 001037
SDCCH transact end duenetw act fail 001039
SDCCH transact end due fail in Abis intduring a call 001075
Radio access part on CCCH
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Figure 25 Successful trunk reservation. Counters updated: 001040, 001041 and basic call counters, see Figure 2.
BSC:
Succ trunk reservations
001041
Trunk reservations
001040
MS: MSC:BTS:
Physical context request
Assignment request
Physical context confirm
Channel activation
Channel activation ack
Assignment command
Basic call signalling, see figure 1
Basic call signalling, see figure 1
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Figure 26 Unsuccessful trunk reservation
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Figure 27 Successful internal intra-cell handover. Counters 001090 and 001091 are updated only with underlay overlay handover.
MSC:BSC:BTS:MS:
TCH requests 001010
Meas report Meas result
Physical context request
Physical context confirm
HO measurement, Old TCH channel
Channel activation
Channel activation ack
Assignment command
Assignment command
Sabm Establish indication
Ua
Rr HO performed
Rf channel release
Rf channel release ack
Assignment completeAssignment complete
001137
001138
TCH seiz att for MOCorTCH seiz att for MTC
001064
001065
Att to req HO, que allowedorAtt to req HO, que not allowed
001102 or001103 or001104 or001105
FR TCH requestsHR TCH requestsFR pref TCH requestsHR pref TCH requests
TCH req for underlay/overlay HO 001090
Succ TCH req for HO 001008
TCH seiz for underlay/overlay HO 001091
001106 or001107
FR TCH succ seizHR TCH succ seiz
Succ seiz of FR TCH in int HOwith ch rate changesorSucc seiz of HR TCH in int HOwith ch rate changes
001116
001117
Old TCH channel release
Signalling on new TCH channel
Signalling on old TCH channel
New TCH channel reservation and activation
BTS HO assgn 001197
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Figure 28 Internal intra-cell handover, successful TCH queuing
Figure Internal intra-cell handover, successful TCH queuing: Counters 001090 and 001091 are updated only with underlay overlay handover. Counters 001142, 001143 and 001144 are updated only if the handover is started by cause urgent_handover. 001145 and 001146 are updated only if the handover is started by cause non_urgent_handover.
MSC:BSC:BTS:MS:
TCH requests 001010
Meas report Meas resultPhysical context request
Physical context confirm
Channel activation
Rf channel releaseRf channel release ack
001102 or001103 or001104 or001105
FR TCH requestsHR TCH requestsFR pref TCH requestsHR pref TCH requests
TCH req for underlay/overlay HO 001090
001106 or001107
FR TCH succ seizHR TCH succ seiz
New TCH channel reservation and activation
HO measurement, Old TCH channel
Att to req HO, que allowed 001064
No free TCH, request is set in queue
001120
001121
FR TCH req rej due HR trafficorHR TCH req rej due FR traffic
TCH channel is released, request is taken from queue
HO signalling, see figure 27
001137 or001138
TCH seiz att for MOCTCH seiz att for MTC
HO att set in queue for TCH 001017
Queued urgent HO attempt 001142
001023
001022
Queue denominator 3
Ave queue time of ho attempt
001143
001145
Ave queue time of urgent ho attorAve queue time of non urgent ho att
Queue denominator 4Queue denominator 4
001144 or001146
Succ TCH req for HO 001008
TCH seiz for underlay/overlay HO 001091
Succ FR TCH int HO with ch rt chorSucc HR TCH int HO with ch rt ch
001116
001117
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Figure 29 Unsuccessful internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message
MSC:BSC:BTS:MS:
TCH transact end due BSS probl 001012
Start timer T9103
Timer T9103 expires
Meas report Meas result
Physical context request
Physical context confirm
Channel activation
Call going on the TCH channel
Rf channel release
Rf channel release ack
HO measurement, HO decision
New TCH channel reservation and activation
Normal HO counters updated, see figure 27
TCH Abis probl 001045
TCH transact end due Abis int failon new channel
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
FR TCH transactions failorHR TCH transactions fail
001133
001134
Call continuous on the old TCH channel
001086
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Figure 30 Unsuccessful internal intra-cell handover, CONNECTION_FAILURE message with cause remote_transcoder_failure comes to the target channel
MSC:BSC:BTS:MS:
Meas report Meas result
Physical context requestPhysical context confirm
Channel activation
Call going on the TCH channel
HO measurement, HO decision
New TCH channel reservation and activation
TCH transact end due transcfail on target
FR TCH transactions failorHR TCH transactions fail
001133
001134
001031
Channel activation ack
Call continuous on the old TCH channel
Signalling on FACCH TCH (old channel)
Assignment command
Connection failure
Assignment command
Rf channel release
Rf channel release ack
HO failure HO failure
Signalling on FACCH TCH (new channel), channel release
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
001127
001128
001129
001130
001131
001132
TCH transc fail FR speech ver 1orTCH transc fail FR speech ver 2orTCH transc fail FR speech ver 3orTCH transc fail HR speech ver 1orTCH transc fail HR speech ver 2orTCH transc fail HR speech ver 3
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Figure 31 Unsuccessful internal intra-cell handover, timer expires on the source channel, call cleared
MSC:BSC:BTS:MS:
Meas report Meas resultPhysical context request
Physical context confirm
FR TCH transactions failHR TCH transactions fail
001133 or001134
Start timer T3107
HO measurement, Old TCH channel
Channel activation
Channel activation ack
Assignment commandAssignment command
Sabm Establish indicationUa
Rf channel release
Rf channel release ack
Clear request
Clear command
Rf channel releaseRf channel release ack
Clear complete
New TCH channel reservation and activation
Normal HO counters updated, see figure 6
Signalling on old TCH channel
Signalling on new TCH channel
Signalling on old TCH channel
Timer T3107 expires
New channel release
001108 or001109 or001110 or001111 or001112 or001113
FR TCH speech FR ver 1FR TCH speech FR ver 2FR TCH speech FR ver 3HR TCH speech HR ver 1HR TCH speech HR ver 2HR TCH speech HR ver 3
001133 or001134
FR TCH transactions failHR TCH transactions fail
Old TCH channel release
TCH transact end due fail on source 001014
001108 or001109 or001110 or001111 or001112 or001113
FR TCH speech FR ver 1FR TCH speech FR ver 2FR TCH speech FR ver 3HR TCH speech HR ver 1HR TCH speech HR ver 2HR TCH speech HR ver 3
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Figure 32 Unsuccessful underlay overlay internal intra-cell handover, queuing not allowed
BSC: MSC:BTS:MS:
Meas report Meas result
Physical context request
Physical context confirm
HO measurement, Old TCH channel
Call continuous on old channel
New TCH channel reservation and activation
No free TCH, queueing not allowed
TCH requests 001010
001137
001138
TCH seiz att for MOCorTCH seiz att for MTC
001102
001103
001104
001105
FR TCH requestsorHR TCH requestsorFR pref TCH requestsorHR pref TCH requests
Att to req HO, que not allowed 001065
TCH req for underlay/overlay HO 001090
TCH req rej due to lack 001011
001118
001119
FR TCH req rej due to lackorHR TCH req rej due to lack
001120
001121
FR TCH req rej due HR trafficorHR TCH req rej due FR traffic
HO req fail, queueing not allowed 001069
TCH req for underlay/overlay HOrej due lack 001092
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Figure 33 Internal intra-cell handover, unsuccessful TCH queuing
Figure Internal intra-cell handover, unsuccessful TCH queuing: Counters 001142, 001143, 001144 and 001147 are updated only if the handover is started by cause urgent_handover. Counters 001145 and 001146 are updated only if the handover is started by cause non_urgent_handover.
MSC:BSC:BTS:MS:
TCH requests 001010
Meas report Meas result
Physical context request
Physical context confirm
001102 or001103 or001104 or001105
FR TCH requestsHR TCH requestsFR pref TCH requestsHR pref TCH requests
New TCH channel reservation and activation
HO measurement, Old TCH channel
No free TCH, request is set in queue
001120
001121
FR TCH req rej due HR trafficorHR TCH req rej due FR traffic
001137 or001138
TCH seiz att for MOCTCH seiz att for MTC
HO att set in queue for TCH 001017
Queued urgent HO attempt 001142
Queue denominator 3 001023
Ave queue time of ho attempt 001022
Att to req HO, queueing allowed 001064
Call continous on old TCH channel
No suitable TCH released in time
TCH req rej due to lack 001011
HO att in queue not served 001025
HO req rej, queueing allowed 001068
001144 or001146
Queue denominator 4Queue denominator 5
Queued urgent HO att not served 001147
001143
001145
Ave queue time of urgent ho attorAve queue time of non urgent ho att
001118 or001119
FR TCH req rej due to lackHR TCH req rej due to lack
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Figure 34 Internal directed retry
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Figure 35 Successful internal inter-cell handover
Figure Successful internal inter-cell handover: Counters 001090 and 001091 are updated only with underlay overlay handover.
MSC:BSC:BTS:MS:
Sabm Establish indication
Channel activation
Channel activation ack
HO command
HO command
HO access HO detection
Physical info
Ua
Rr HO performed
Rf channel release
Rf channel release ack
HO complete HO complete
TCH requests 001010
Meas report Meas result
HO measurement, Old TCH channel in the old BTS
Signalling on the old TCH channel in the old BTS
Signalling on the new TCH channel in the new BTS
Old TCH channel release in the old BTS
New TCH channel reservation and activation in the new BTS
001137 or001138
TCH seiz att for MOCTCH seiz att for MTC
001064 or001065
Att to req HO, que allowedAtt to req HO, que not allowed
TCH req for underlay/overlay HO 001090
001102 or001103 or001104 or001105
FR TCH requestsHR TCH requestsFR pref TCH requestsHR pref TCH requests
Succ TCH req for HO 001008
TCH seiz for underlay/overlay HO 001091
001106 or001107
FR TCH succ seizHR TCH succ seiz
Succ seiz of FR TCH in int HOwith ch rate changesSucc seiz of HR TCH in int HOwith ch rate changes
001116 or
001117
BTS O HO cmd 001196
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Figure 36 Unsuccessful internal inter-cell handover
MSC:BSC:BTS:MS:
Meas report Meas result
TCH activation fail 001028
HO measurement, Old TCH channel
Channel activation
Channel activation nack
New TCH channel reservation and activation in new BTS
Call continuous on the old channel
Rf channel release
Rf channel release ack
Normal HO counters updated, see figure 35
New channel release
TCH transact end due TCH actfail in target
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
001133
001134
FR TCH transactions failorHR TCH transactions fail
001083
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Figure 37 Successful external handover, target
MSC:BSC:BTS:MS:
TCH requests 001010
HO request
Channel activation
Channel activation ack
HO request ack
HO access HO detection HO detection
Physical info
Sabm Establish indication
Ua
HO complete
Rr
HO complete HO completed
001064
001065
Att to req HO, que allowedorAtt to req HO, que not allowed
001102
001103
001104
001105
FR TCH requestsorHR TCH requestsorFR pref TCH requestsorHR pref TCH requests
Succ TCH req for HO 001008
001106
001107
FR TCH succ seizorHR TCH succ seiz
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Figure 38 Successful external handover, source
BTS: MSC:MS: BSC:
FR TCH speech FR ver 1001108 or
FR TCH speech FR ver 2001109 or
FR TCH speech FR ver 3001110 or
HR TCH speech HR ver 1001111 or
HR TCH speech HR ver 2001112 or
HR TCH speech HR ver 3001113
HO command
Rf channel release
Rf channel release ack
HO requiredMeas report Meas result
Clear complete
HO command
HO command
Clear command
MSC O HO cmd 001195
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Figure 39 Unsuccessful external handover, source BSC, timer expires while waiting for CLEAR_COMMAND message
MSC:BSC:BTS:MS:
Timer T8 expires
Start timer T8
TCH transact end due BSS probl 001012
Meas report Meas result HO required
HO command
HO measurement, HO decision
Call going on the TCH channel
Clear command
Rf channel release
Rf channel release ack
Clear request
HO commandHO command
Clear complete
Call cleared
TCH transact end due A int fail 001051
TCH transact end due A int failon source
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
001133
001134
FR TCH transactions failorHR TCH transactions fail
001088
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Figure 40 Unsuccessful external handover, MS sends a handover failure
MSC:BSC:BTS:MS:
Meas report Meas result HO required
HO request
HO measurement, HO decision
Channel activation
Channel activation ack
Call going on the TCH channel
Call continuous on the old channel
HO request ack
Clear command
Rf channel release
Rf channel release ack
HO failure HO failure HO failure
Clear complete
HO commandHO commandHO command
New TCH channel reservation and activation in new BSC
Normal HO counters updated, see figure 37
Signalling on old BSC, MS sends HO failure
Signalling on new BSC, channel is released
TCH transact end due BSS probl 001012
TCH transact end due A int fail 001051
TCH transact end due A int fail onnew
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
001133
001134
FR TCH transactions failorHR TCH transactions fail
001089
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Figure 41 Successful traffic reason handover, source
MSC:BSC:BTS:MS:
HO s due to traffic reasons 001052
Rf resource indication
Resource request
Resource indication
HO candidate enquiry
HO required
HO candidate response
HO commandHO commandHO command
Enquiries of traffic reason HO 001053
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Figure 42 Successful SDCCH internal intra-cell handover
MSC:BSC:BTS:MS:
SDCCH attempts 001000
Meas report Meas result
Physical context request
Physical context confirm
HO measurement, Old SDCCH channel
Channel activation
Channel activation ack
Assignment command
Assignment command
Sabm Establish indication
Ua
Assignment complete
Rr HO performed
Rf channel release
Rf channel release ack
New SDCCH channel reservation and activation
001135
001136
SDCCH seiz att for MOCorSDCCH seiz att for MTC
Succ SDCCH seiz for HO 001006
Signalling on old SDCCH channel
Signalling on new SDCCH channel
Old SDCCH channel release
BTS HO assgn 001197
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Figure 43 Unsuccessful SDCCH internal intra-cell handover, timer expires while waiting for CHANNEL_ACTIVATION_ACK message
MSC:BSC:BTS:MS:
Timer T9103 expires
Start timer T9103
Meas report Meas result
Physical context request
Physical context confirm
Channel activation
HO measurement, old SDCCH channel
Rf channel release
Rf channel release ack
New SDCCH channel reservation and activation
SDCCH transact end due BSSprobl
Signalling continuous on old SDCCH channel
SDCCH transact end due Abisint fail
SDCCH transact end due Abis int failon target
001002
001033
001077
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Figure 44 Unsuccessful SDCCH internal intra-cell handover, unsuccessful channel activation
BSC:
SDCCH transact end duech act fail on target
001074
SDCCH transact end duech act fail
001027
MS: MSC:BTS:
Meas report Meas result
Physical context request
Physical context confirm
Channel activation
Rf channel release
Rf channel release ack
Channel activation nack
HO measurement, old SDCCH channel
New SDCCH channel reservation and activation
Signalling continuous on old SDCCH channel
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Figure 45 Unsuccessful SDCCH internal intra-cell handover, CONNECTION_FAILURE message comes to the target channel during handover
MSC:BSC:BTS:MS:
Meas report Meas result
Physical context request
Physical context confirm
HO measurement, Old SDCCH channel
Channel activation
Channel activation ack
Assignment commandAssignment command
Sabm Establish indication
UaConnection failure
Signalling continuous on old channel
Rf channel release
Rf channel release ack
New SDCCH channel reservation and activation
Signalling on old SDCCH channel
Signalling on new SDCCH channel
SDCCH transact end dueradio fail on target 001005
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Figure 46 Successful SDCCH internal inter-cell handover
MSC:BSC:BTS:MS:
SDCCH attempts 001000
Succ SDCCH seiz for HO 001006
Meas report Meas result
Sabm Establish indication
HO measurement, Old SDCCH channel in old BTS
Channel activation
Channel activation ack
New SDCCH channel reserv. and activ. in new BTS
Signalling on the old SDCCH channel in the old BTS
HO command
HO command
Signalling on new SDCCH channel in new BTS
HO access HO detection
Physical info
Ua
Rr HO performed
Old SDCCH channel release in the old BTS
Rf channel release
Rf channel release ack
HO complete HO complete
001135
001136
SDCCH seiz att for MOCorSDCCH seiz att for MTC
BTS O HO cmd 001196
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Figure 47 Unsuccessful SDCCH internal inter-cell handover, BTS sends CONNECTION_FAILURE message
Figure 48 Successful SDCCH external handover target
MSC:BSC:BTS:MS:
Meas report Meas result
Rf channel release
Rf channel release ack
HO measurement, Old SDCCH channel
Channel activation
Connection failure
New SDCCH channel reservation and activation
Signalling on old SDCCH channel
Signalling on new SDCCH channel
Rf channel release
Rf channel release ack
Clear request
Clear command
Clear complete
SDCCH transact end due radiofail on source 001004
MSC:BSC:BTS:MS:
SDCCH attempts 001000
HO request
Channel activation
Channel activation ack
HO request ack
HO access HO detection HO detection
Physical info
Sabm Establish indication
Ua
HO complete
Rr
HO complete HO completed
Succ SDCCH seiz for HO 001006
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Figure 49 Successful SDCCH external handover source. No counters updating.
BSC:MS: MSC:BTS:
HO command
Rf channel release
Rf channel release ack
HO required
Meas report Meas result
Clear complete
HO commandHO command
Clear command
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Figure 50 Unsuccessful SDCCH external handover, timer expires while waiting for CLEAR_COMMAND message
MSC:BSC:BTS:MS:
SDCCH transact end due A int fail 001034
SDCCH transact end due BSS fail 001002
Timer T8 expires
Start timer T8
HO command
Rf channel release
Rf channel release ack
HO requiredMeas report Meas result
Clear complete
HO commandHO command
Clear command
Clear request
Signalling on SDCCH source channel
Rf channel release ack
Rf channel release
Clear command
Clear complete
SDCCH transact end due A int failon source
Signalling on SDCCH target channel
SDCCH transact end due BSS fail 001002
SDCCH transact end due A int fail 001034
SDCCH transact end due A int failon target
001079
001080
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Figure 51 Successful forced release
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Figure 52 Unsuccessful forced release
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Figure 53 Unsuccessful forced release with external handover
MSC:BSC:BTS:MS:
TCH requests 001010
Meas report Meas result HO required
HO request
Queuing indication
Priority call going on the TCH channel
Clear command
Rf channel release
Rf channel release ack
HO failure
Clear complete
HO measurement, HO decision
New TCH channel reservation and activation in new BSC
Att to req HO with forced rel 001062
TCH req with prior subscriber 001095
001102
001103
001104
001105
FR TCH requestsorHR TCH requestsorFR pref TCH requestsorHR pref TCH requests
001120
001121
FR TCH req rej due HR trafficorHR TCH req rej due FR traffic
No suitable TCH for forced release, forced release timer exp ires
001119
FR TCH req rej due to lackorHR TCH req rej due to lack
TCH req rej due to lack 001011
HO req rej with forced release 001066
Call continuous on the old channel
001118
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Figure 54 Successful forced handover
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Figure 55 Unsuccessful forced handover
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Figure 56 Unsuccessful forced handover with external handover
MSC:BSC:BTS:MS:
TCH req rej due to lack 001011
TCH req with prior subscriber 001095
TCH requests 001010
Att to req HO with forced HO 001063
HO req rej with forced HO 001067
Meas report Meas result HO required
HO request
HO measurement, HO decision
Queuing indication
New TCH channel reservation
No suitable TCH for forced handover,
Priority call going on the TCH channel
Call continuous on the old channel
Clear command
Rf channel release
Rf channel release ack
HO failure
Clear complete
001102
001103
001104
001105
FR TCH requestsorHR TCH requestsorFR pref TCH requestsorHR pref TCH requests
001120
001121
FR TCH req rej due HR trafficorHR TCH req rej due FR traffic
001118
001119
FR TCH req rej due to lackorHR TCH req rej due to lack
forced handover timer expires
and activation in new BSC
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Figure 57 Reconfiguration from TCH to SDCCH
Figure 58 Normal call
MSC:BSC:BTS:MS:
SDCCH attempt 001000
Channel requestChannel required
Channel activation
Paging part
Radio access part on CCCH
001135
001136
SDCCH seiz att for MOCorSDCCH seiz att for MTC
Reconfiguration from idle TCH to active SDCCH
Dynamic SDCCH reconf attempt 001154
SDCCH succ seiz for imm assign 001007
Basic call signalling continuos, see figure 1
MSC:BSC:BTS:MS:
Succ TCH seiz for ass complete 001148
Basic call signalling, see figure 1
Basic call signalling, see figure 1
TCH seized, FACCH signalling part
Assignment complete
Assignment complete
Sabm
Ua
Establish indication
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Figure 59 Mobile originated HSCSD call setup
MSC:BSC:BTS:MS:
HSCSD req for call setup 001160
Classmark change Classmark update
Setup Setup
Normal signalling
Call proceedingCall proceeding
Channel activation
Channel activation ack
Assignment request
Physical context requestPhysical context confirm
Channel activation
Channel activation ack
Assignment command
Sabm Establish indicationUa
Assignment complete Assignment completeRf channel release
Rf channel release ackAlert AlertConnect Connect
Connect ackConnect ack
Release completeClear command
Clear completeChannel release
Deactivate SACCHDisc
UaRelease indication
Rf channel releaseRf channel release ack
Disconnect DisconnectReleaseRelease
Release complete
Normal signalling
HSCSD TCH req with 14,4HSCSD transp TCH req
001156 or001158
001157 or001159
HSCSD succ TCH req with 14,4HSCSD succ transp TCH seiz
HSCSD succ TCH 001162
Counters for TCH request and
TCH seized, FACCH signalling part
Conversation phase
Release by MS
succesful TCH seizures are also updated, see figure 2
seiz for call setup
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Figure 60 Successful internal inter-cell handover for HSCSD, target cell allocations and activations for three channels
MSC:BSC:BTS:MS:
HSCSD TCH request for HO 001161
HSCSD transp TCH request 001158
HSCSD TCH request with 14,4 001156
Meas report Meas result
Sabm Establish indication
HO measurement, Old TCH channel in the old BTS
Channel activation
Channel activation ack
Signalling on the old TCH channel in the old BTS
HO commandHO command
HO access HO detection
Physical info
Ua
Rr HO performed
Rf channel release
Rf channel release ack
HO complete HO complete
Channel activation
Channel activation ack
Channel activation
Channel activation ack
New TCH channel reservation and activation in the new BTS
Normal handover counters are updated, see figure 35
HSCSD succ TCH seiz with 14,4 001157
HSCSD succ transp TCH seiz 001159
HSCSD succ TCH seiz for HO 001163
Signalling on the new TCH channel in the new BTS
Old TCH channel release in the old BTS
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Figure 61 A CONNECTION_FAILURE message which comes during an HSCSD
MSC:BSC:BTS:MS:
Failure
HSCSD conn rel due to fail 001164
Rf channel rel ack
Conversation phase
Clear request
Disc
Ua
Channel release
Release indication
Rf channel release
Connection failure
Clear command
Clear complete
Deactive SACCH
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Figure 62 Internal intra-cell direct access from a regular DCCH to the super-reuse TRX. Optional software direct access to super-reuse TRX in IUO activated.
MSC:BSC:BTS:MS:
Succ TCH seiz for dir acc 1165
Assignment request
Physical context request
Sabm Establish indication
Basic call signalling, see figure 1
Channel activation
Channel activation ack
Physical context confirm
Assignment command
Assignment command
Ua
Rr
Assignment complete
Rf channel release
Rf channel release ack
Assignment complete Assignment complete
Alert Alert
Connect ackConnect ack
Connect Connect
Physical context information
Direct access to super-reuse TRX
TCH reservation and activation
Signalling on SDCCH
Signalling on FACCH - TCH
SDCCH release
Connection
Conversation phase
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Figure 63 Unsuccessful internal intra-cell direct access from regular DCCH to the super-reuse TRX due to lack of resources. Optional software direct access to super-reuse TRX in IUO activated.
MSC:BSC:BTS:MS:
TCH req for dir acc rej due lack 1166
Assignment request
Physical context request
Basic call signalling, see figure 1
Physical context confirm
Physical context information
Unsuccessful direct access attempt to super-reuse TRX
Signalling continuous on old channel
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Figure 64 Timer T3107 expires while waiting for ASSIGNMENT_COMPLETE message
MSC:BSC:BTS:MS:
TCH transact end due radio fail 001013
Timer T3107 expires
Start timer T3107
SDCCH Rf channel rel
SDCCH Rf channel rel ack
Rf channel rel ack
Assignment failure
Clear command
Channel release
Deactive SACCHDisc
UaRelease indication
Clear complete
Physical context requestAssignment request
Physical context confirm
Channel activation
Rf channel rel
Basic call signalling, see figure 1
Channel activation ack
Assignment commandAssignment command
Sabm
Establish indicationUa
001108
001109
001110
001111
001112
001113
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
001133
001134
FR TCH transactions failorHR TCH transactions fail
TCH rel due radio fail 001139
TCH rel due rad fail PH 2-3 001205
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Figure 65 Average counter updating
Figure 66 Successful handover due to DADL/B
MSC:BSC:BTS:MS:
Timer is started
After 20 seconds
Timer expires
Timer is started again
After 20 seconds
Timer expires
Average queue length for channelseizure request
Average queue length for channelseizure request
1018
1018
BTS: MSC:MS: BSC:
Succ TCH seiz for DADL/B HO001170
DADL/B start due to exceeded load001172
Channel activation
Channel activation ack
Assignment request
Physical context request
Physical context confirm
Signalling
Signalling continues
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Figure 67 Unsuccessful DADL/B handover due to lack of resources
Figure 68 Successful BSC controlled TRHO
BTS: MSC:MS: BSC:
TCH request in DADL/B HO rejected001171
DADL/B start due to exceeded load001172
Assignment request
Physical context request
Physical context confirm
Signalling
DR and queuing possible
BTS: MSC:MS: BSC:
Succ TCH seiz for BSC contr TRHO
001168
TCH request for BSC contr TRHO
001167
Channel activation
Channel activation ack
Normal HO signalling
Signalling on the old TCH channel in the old BTS
New TCH channel reservation and activation in the new BTS
HO decision
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Figure 69 Unsuccessful BSC controlled TRHO
BTS: MSC:MS: BSC:
Rej TCH seiz for BSC contr TRHO due to lack
001169
TCH request for BSC contr TRHO
001167
HO decision
New TCH channel reservation
HO ends and signalling continuous on
and activation in the new BTS
the old TCH channel in the old BTS
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Figure 70 Dropped call between ASSIGNMENT COMPLETE and DISCONNECT
MSC:BSC:BTS:MS:
Paging/initial MS on CCCH
Clear request
Channel release
Clear command
Clear complete
Deactive SACCH
MM signalling
Basic assignment
AlertAlert
ConnectConnect
Connect ack Connect ack
Conversation
Radio Link Failure
Connection failure
DISC
UA
Release indication
RF channel release
001108FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
001109
001110
001111
001112
001113
TCH transact end due radio fail
001012
TCH Abis probl
Drop after TCH assign
Drop TCH asscompl to RFCH rel
001013
TCH transact end due BSS probl
001045
001202
001204
RF channel release ack
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Figure 71 Dropped call between ASSIGNMENT COMPLETE and RF CHANNEL RELEASE ACK
MSC:BSC:BTS:MS:
Paging/initial MS on CCCH
Channel release
Clear command
Clear complete
Deactive SACCH
MM signalling
Basic assignment
AlertAlert
ConnectConnect
Connect ack Connect ack
Conversation
Timer T3109 expires
DISC
UA
RF channel release ack
FR TCH speech FR ver 1orFR TCH speech FR ver 2orFR TCH speech FR ver 3orHR TCH speech HR ver 1orHR TCH speech HR ver 2orHR TCH speech HR ver 3
001109
001110
001111
001112
TCH transact end due Abis fail
Drop TCH asscompl to RFCH rel
001113
001204
RF channel release
Release by MS
DisconnectDisconnect
ReleaseRelease
Release complete Release complete
DISC
Release indication notreceived
001084
001108
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Figure 72 Circuit pool switching during call setup, chart 1/2
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Figure 73 Circuit pool switching during call setup, chart 2/2
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Figure 74 AMR packing or unpacking handover
MS BTS BSC MSC
MEASUREMENT REPORT MEASUREMENT RESULT
004076 CELL_TCH_TCH_AT
R F C H A N N E L R E L E A S E
R F C H A N N E L R E L E A S E A C K
004142 HO_ATT_FOR_AMR_TO_HR or004143 HO_ATT_FOR_AMR_TO FR
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
ASSIGNMENT COMMAND
ASSIGNMENT COMMAND
SABM ESTABLISH INDICATION
UA
ASSIGNMENT COMPLETE ASSIGNMENT COMPLETE
RR
HANDOVER PERFORMED
004073 CELL_TCH_TCH
004018 CELL_SUCC_HO
004205 HO_SUCC_AMR_FR_TO_HR or004206 HO_SUCC_AMR_HR_TO_FR
BSC-internal intra-cell HO started due to AMR
packing or unpacking HO
PHYSICAL CONTEXT CONFIRM
PHYSICAL CONTEXT REQUEST
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Figure 75 Successful handover type reselection from an internal inter-cell TCH to TCH handover to an external handover due to switching the circuit pool
MS BSC MSC
HANDOVER COMMAND
CLEAR COMMAND
004203 BSC_O_SUCC_HO_TO_EXT
004067 BSC_O_TCH_TCH_AT
004059 BSC_I_TCH_TCH_AT (updated for target cell)
004096 BSC_O_UNSUCC_A_INT_CIRC_TYPE
004099 HO_ATT_DUE_SWITCH_CIRC_POOL
004094 MSC_O_ATT_SWITCH_CIRC_POOL
004052 MSC_O_TCH_TCH_AT
004097 BSC_I_UNSUCC_A_INT_CIRC_TYPE(updated for target cell)
004004 MSC_O_SUCC_HO
004049 MSC_O_TCH_TCH
004095 MSC_O_SUCC_SWITCH_CIRC_POOL
004005 MSC_O_HO_RQ_MSG
004009 MSC_O_HO_COMM
004030 CAUSE_INTFER_DWN
HANDOVER COMMANDHANDOVER COMMAND
MSC switches circuit pool
Decision to start pool switching procedure is made
BSC-internal inter-cell HO started due to high
interference on downlink, for example
BTS
Channel reservation and activation in the target cell
Source-TCH is released
HO signalling in the target cell
HANDOVER REQUIRED (switch circuit pool)
MEASUREMENT RESULTMEASUREMENT REPORT
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Figure 76 Internal inter-cell handover change to external handover due to circuit pool switching, target-cell
BTSMS BSC MSC
HO decision of the circuit pool switch made in the source cell
HO signalling in the source cell, the MSC sends a HO command
HANDOVER REQUEST
HANDOVER ACCESS HANDOVER DETECTIONHANDOVER DETECTION
HANDOVER COMPLETE HANDOVER COMPLETE HANDOVER COMPLETE
004092 MSC_I_ATT_SWITCH_CIRC_POOL
004046 MSC_I_TCH_TCH_AT
PHYSICAL INFO
SABM ESTABLISH INDICATION
UA
RR
004000 MSC_I_SUCC_HO
004043 MSC_I_TCH_TCH
004093 MSC_I_SUCC_SWITCH_CIRC_POOL
CHANNEL ACTIVATION
004202 BSC_I_INT_SUCC_HO_TO_EXT
HANDOVER REQUEST ACKNOWLEDGECHANNEL ACTIVATION ACK
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Figure 77 Internal intra-cell handover change to external due to circuit pool switching, source side
MS BTS BSC MSC
004076 CELL_TCH_TCH_AT
HO signalling in the target side
Channel reservation and activation in the new target side, HO command from the MSC
HANDOVER COMMAND
004030 CAUSE_INTFER_DWN
004098 HO_UNSUCC_A_INT_CIRC_TYPE
004099 HO_ATT_DUE_SWITCH_CIRC_POOL
004094 MSC_O_ATT_SWITCH_CIRC_POOL
004052 MSC_O_TCH_TCH_AT
004004 MSC_O_SUCC_HO
004049 MSC_O_TCH_TCH
004095 MSC_O_SUCC_SWITCH_CIRC_POOL
004005 MSC_O_HO_RQ_MSG
004009 MSC_O_HO_COMM
HANDOVER COMMANDHANDOVER COMMAND
MEASUREMENT REPORT MEASUREMENT RESULT
Decision to start pool switching procedure is made
MSC switches circuit pool
BSC-internal intra-cell HO started due to high
interference on downlink, for example
Source-TCH is released
CLEAR COMMAND
HANDOVER REQUIRED (switch circuit pool)
PHYSICAL CONTEXT REQUEST
PHYSICAL CONTEXT CONFIRM
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Figure 78 Internal intra-cell handover change to external due to circuit pool switching, target side
MS BTS BSC MSC
Ho decision of the circuit pool switch made in the source side
HO signalling in the source side, the MSC sends a HO command
HANDOVER REQUEST
HANDOVER ACCESS
HANDOVER DETECTIONHANDOVER DETECTION
HANDOVER COMPLETE HANDOVER COMPLETE
HANDOVER COMPLETE
004204 INT_SUCC_HO_TO_EXT
004092 MSC_I_ATT_SWITCH_CIRC_POOL
004046 MSC_I_TCH_TCH_AT
004000 MSC_I_SUCC_HO
004043 MSC_I_TCH_TCH
004093 MSC_I_SUCC_SWITCH_CIRC_POOL
PHYSICAL INFO
SABM
ESTABLISH INDICATION
UA
RR
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
HANDOVER REQUEST ACKNOWLEDGE
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Figure 79 Circuit pool switch during inter-system handover, target-BSC
BTSMS BSC MSC
HANDOVER REQUEST
HANDOVER ACCESS HANDOVER DETECTIONHANDOVER DETECTION
HANDOVER COMPLETE HANDOVER COMPLETE HANDOVER COMPLETE
HANDOVER REQUEST
HO measurements and external HO decision made in the source cell, MSC sends HO request
Signalling on the target cell, connection
MSC switches circuit pool
Decision to start pool switching procedure is made
004208 MSC_I_WCDMA_SUCC_POOL_SWITCH
CHANNEL ACTIVATION
PHYSICAL INFO
SABM ESTABLISH INDICATION
UA
004149 MSC_HO_WCDMA_RAN_SUCC
004153 MSC_GEN_SYS_WCDMA_RAN_HO_REQ
004154 MSC_GEN_SYS_WCDMA_RAN_HO_COM
04144 MSC_TCH_HO_FROM_WCDMA_RAN_ATT
004207 MSC_I_WCDMA_UNSUC_POOL_SWITCH
04144 MSC_TCH_HO_FROM_WCDMA_RAN_ATT
HANDOVER FAILURE (switch circuit pool)
CHANNEL ACTIVATION ACK HANDOVER REQUEST ACKNOWLEDGE
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Figure 80 Circuit pool switch during external handover, target-BSC
HANDOVER COMPLETE HANDOVER COMPLETE
HO measurements and external HO decision made in source-BSC, the MSC sends HO a request
Signalling on the new BTS, connection
MSC switches circuit pool
Decision to start pool switching procedure is made
004005 MSC_O_HO_RQ_MSG
004009 MSC_O_HO_COMM
PHYSICAL INFO
SABM ESTABLISH INDICATION
UA
004000 MSC_I_SUCC_HO
004043 MSC_I_TCH_TCH
004046 MSC_I_TCH_TCH_AT
004092 MSC_I_ATT_SWITCH_CIRC_POOL
HANDOVER REQUEST ACKNOWLEDGE
HANDOVER COMPLETE
BTSMS BSC MSC
HANDOVER ACCESS HANDOVER DETECTION
HO measurements and external HO decision made in the source-BSC, the MSC sends HO a request
Signalling on the new BTS, connection
MSC switches circuit pool
Decision to start pool switching procedure is made
004101 MSC_CONTROLLED_IN_HO
004005 MSC_O_HO_RQ_MSG
004009 MSC_O_HO_COMM
CHANNEL ACTIVATION
004000 MSC_I_SUCC_HO
004043 MSC_I_TCH_TCH
004093 MSC_I_SUCC_SWITCH_CIRC_POOL
004046 MSC_I_TCH_TCH_AT
004046 MSC_I_TCH_TCH_AT
004092 MSC_I_ATT_SWITCH_CIRC_POOL
CHANNEL ACTIVATION ACK
HANDOVER DETECTION
HANDOVER REQUEST
HANDOVER REQUEST
HANDOVER COMPLETE
HO measurements and external HO decision made in source-BSC, the MSC sends HO a request
Signalling on the new BTS, connection
MSC switches circuit pool
Decision to start pool switching procedure is made
004005 MSC_O_HO_RQ_MSG
004009 MSC_O_HO_COMM
ESTABLISH INDICATION
UA
004000 MSC_I_SUCC_HO
004043 MSC_I_TCH_TCH
004046 MSC_I_TCH_TCH_AT
004092 MSC_I_ATT_SWITCH_CIRC_POOL
BTSMS BSC MSC
HO measurements and external HO decision made in the source-BSC, the MSC sends a HO request
Signalling on the new BTS, connection
MSC switches circuit pool
Decision to start pool switching procedure is made
004101 MSC_CONTROLLED_IN_HO
004005 MSC_O_HO_RQ_MSG
004009 MSC_O_HO_COMM
004000 MSC_I_SUCC_HO
004043 MSC_I_TCH_TCH
004093 MSC_I_SUCC_SWITCH_CIRC_POOL
004046 MSC_I_TCH_TCH_AT
004046 MSC_I_TCH_TCH_AT
004092 MSC_I_ATT_SWITCH_CIRC_POOL
CHANNEL ACTIVATION ACK
HANDOVER FAILURE (switch circuit pool)
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Figure 81 BSS Internal Handover with MSC Support - Local Handover
Codec change with non matching codec configuration from FR AMR to HR AMR, target L-BTS2 allows only HR-mode; TC in MGW
L-BTS1 L-BSC MGW MSSL-BTS2
Packet Abis AoIP
MEASUREMENT RESULT
INTERNAL HANDOVER REQUIRED
MEASUREMENT REPORT
L-MS
Um
BSC decides HO required due to e.g. radio network quality.Relevant handover cause counter updated
No matching codec configuration, MSS controlled HO required
004052 MSC_O_TCH_TCH_AT
004046 MSC_I_TCH_TCH_AT
004244 BSS_INT_HO_REQ_REQUESTS
INTERNAL HANDOVER COMMAND
004245 BSS_INT_HO_COMMANDS
001010 TCH_REQUEST
057016 TCH_SEIZURES
001008 TCH_HO_SEIZ
001184 TCH_CALL_REQ_FOR_AMR
001102 TCH_FULL_REQ_SUCC_UNSUCC
001104 TCH_FULL_REQ_PREFERRED
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
HANDOVER COMMAND
001196 BSC_O_HO_CMD_ASSGN
HANDOVER ACCESS
HANDOVER DETECTION
PHYSICAL INFO
SABM
ESTABLISH INDICATIONUA
HANDOVER COMPLETE
RR
004248 BSS_INT_HO_SUCCESSFUL
057034 TCH_HO_ASSIGN
CLEAR COMMAND
051013 INTERNAL_INTER_HO_SUCC
057012 INT_INTER_HO_SUCC
004004 MSC_O_SUCC_HO
004049 MSC_O_TCH_TCH
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
Packet Abis AoIP
004246 BSS_INT_HO_SRC_SUCC
001118 TCH_REJ_REQ_DUE_LACK_FR
HANDOVER COMMAND
HANDOVER COMPLETE
HANDOVER COMPLETE
Um
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Figure 82 BSS Internal Handover with MSC Support - Distant Handover
Codec change with non matching codec configuration from FR AMR to HR AMR, target L-BTS2 allows only HR-mode; TC in MGW
D-BSCMSS D-BTS2
Packet AbisAoIP
INTERNAL HANDOVER ENQUIRY
D-MS
Um
Packet AbisAoIP Um
D-BTS1
004244 BSS_INT_HO_REQ_REQUESTS
004249 BSS_INT_HO_ENQUIRY
INTERNAL HANDOVER REQUIRED
INTERNAL HANDOVER COMMAND
004043 MSC_I_TCH_TCH
004245 BSS_INT_HO_COMMANDS
004142 HO_ATT_FOR_AMR_TO_HR
001010 TCH_REQUEST
057016 TCH_SEIZURES
001008 TCH_HO_SEIZ
001184 TCH_CALL_REQ_FOR_AMR
001103 TCH_HALF_REQ_SUCC_UNSUCC
001105 TCH_HALF_REQ_PREFERRED
001107 TCH_HALF_SUCC_SEIZ
001117 TCH_HALF_SEIZ_INT_HO_CH_RATE
001183 HALF_TCH_SEIZ_INTRA_AMR_HO
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
HANDOVER COMMAND
HANDOVER COMMAND
001196 BSC_O_HO_CMD_ASSGN
HANDOVER ACCESS
HANDOVER DETECTION
PHYSICAL INFO
SABM
ESTABLISH INDICATION
UA
HANDOVER COMPLETE
RR004248 BSS_INT_HO_SUCCESSFUL
057034 TCH_HO_ASSIGN
CLEAR COMMAND
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
HANDOVER COMPLETE
HANDOVER COMPLETE
051013 INTERNAL_INTER_HO_SUCC
057012 INT_INTER_HO_SUCC
004004 MSC_O_SUCC_HO
004049 MSC_O_TCH_TCH
004246 BSS_INT_HO_SRC_SUCC
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Figure 83 Intra BSC HO; interface type change from AoIP to AoTDM; TC in MGW
BTS1 BSC MGW MSSBTS2
Packet Abis AoIP
MEASUREMENT RESULT
INTERNAL HANDOVER REQUIRED
MEASUREMENT REPORT
MS
Um
BSC decides HO required from IP BTS tolegacy BTS due to e.g. radio network quality
No matching interface type available, MSS controlled HO required
004052 MSC_O_TCH_TCH_AT
004046 MSC_I_TCH_TCH_AT
004244 BSS_INT_HO_REQ_REQUESTS
INTERNAL HANDOVER COMMAND
004245 BSS_INT_HO_COMMANDS
001010 TCH_REQUEST
057016 TCH_SEIZURES
001008 TCH_HO_SEIZ
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
HANDOVER COMMAND
001196 BSC_O_HO_CMD_ASSGN
HANDOVER ACCESS
HANDOVER DETECTION
PHYSICAL INFO
SABM
ESTABLISH INDICATIONUA
HANDOVER COMPLETE
RR
004248 BSS_INT_HO_SUCCESSFUL
057034 TCH_HO_ASSIGN
CLEAR COMMAND
051013 INTERNAL_INTER_HO_SUCC
057012 INT_INTER_HO_SUCC
004004 MSC_O_SUCC_HO
004049 MSC_O_TCH_TCH
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
Abis AoTDM
HANDOVER COMMAND
HANDOVER COMPLETE
HANDOVER COMPLETE
Um
CLEAR COMPLETED
004043 MSC_I_TCH_TCH
004246 BSS_INT_HO_SRC_SUCC
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Figure 84 TCH Drop Counters 1/3
MS BTS BSC MSC
ASSIGNMENT_REQUEST
Start T9108PHYSICAL_CONTEXT_REQUEST
PHYSICAL_CONTEXT_CONFIRMATION
Start T9103CHANNEL_ACTIVATION
AUTHENTICATION_REQUESTAUTHENTICATION_REQUEST
AUTHENTICATION_RESPONSE AUTHENTICATION_RESPONSE
CIPHERING_MODE_COMMANDENCRYPTION_COMMAND
CIPHERING_MODE_COMMAND
CIPHERING_MODE_COMPLETE CIPHERING_MODE_COMPLETE
SETUPSETUP
CALL_PROCEEDING CALL_PROCEEDING
(TA INFO)
Stop T9108
SDCCH signalling up to TCH seizure
IDENTIFICATION_REQUESTIDENTIFICATION_REQUEST
IDENTIFICATION_RESPONSE IDENTIFICATION_RESPONSE
TCH_RADIO_FAIL 001013
TCH_RF_OLD_HO 001014
TCH_ABIS_FAIL_CALL 001084
TCH_ABIS_FAIL_OLD 001085
TCH_A_IF_FAIL_CALL 001087
TCH_A_IF_FAIL_OLD 001088
TCH_TR_FAIL 001029
TCH_TR_FAIL_OLD 001030
TCH_LAPD_FAIL 001046
TCH_BTS_FAIL 001047
TCH_USER_ACT 001048
TCH_BCSU_RESET 001049
TCH_NETW_ACT 001050
TCH_ACT_FAIL_CALL 001081
001199
TCH_REL_DUE_BSS_FAIL_PH_2_3
CHANNEL_ACTIVATION_ACKStop T9103
ASSIGNMENT_COMMANDStart
T10,T3107
TCH seized
COUNTERS OF TCH DROPSAFTER SEIZURE STARTS
ASSIGNMENT_COMMAND (SDCCH)
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Figure 85 TCH Drop Counters 2/3
MS BTS BSC MSC
Start T200SABM (FACCH)
ESTABLISH_INDICATION
UA (FACCH)Stop T200
ASSIGNMENT_COMPLETE
(FACCH)ASSIGNMENT_COMPLETE
Stop T10,T3107
ASSIGNMENT_COMPLETE
COUNTERS OF TCH DROPSAFTER ASSIGNMENT STARTS
RF_CHANNEL_RELEASE_ACK
ALERT
SDCCH signalling: MS moves on TCH, SDCCH released
MS on TCH
Alert
CONNECTCONNECT
CONNECT_ACK
CONNECT_ACK
Conversation
ALERT SDCCH released
001202
DROP_AFTER_TCH_ASSIGN
001205TCH_REL_DUE_RAD_FAIL_PH_2_3
RF_CHANNEL_RELEASE
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Figure 86 TCH Drop Counters 3/3
Related topics1 Traffic Measurement
Counters of Traffic Measurement
MS BTS BSC MSC
DISCONNECT
TCH released normally by MS
DISCONNECT
RELEASERELEASE
RELEASE COMPLETE RELEASE COMPLETE
CLEAR COMMAND
CLEAR COMPLETE
CHANNEL RELEASE
DEACTIVATE SACCH
RELEASE INDICATION
RF CHANNEL RELEASE
RF CHANNEL ACK
T3109DISC
UA
TCH_RADIO_FAIL 001013
TCH_RF_OLD_HO 001014
TCH_ABIS_FAIL_CALL 001084
TCH_ABIS_FAIL_OLD 001085
TCH_A_IF_FAIL_CALL 001087
TCH_A_IF_FAIL_OLD 001088
TCH_TR_FAIL 001029
TCH_TR_FAIL_OLD 001030
TCH_LAPD_FAIL 001046
TCH_BTS_FAIL 001047
TCH_USER_ACT 001048
TCH_BCSU_RESET 001049
TCH_NETW_ACT 001050
TCH_ACT_FAIL_CALL 001081
DROP_AFTER_TCH_ASSIGN001202
COUNTERS OFSTOPS
TCH DROPSAFTER SEIZURE
COUNTERS OF
ASSIGNMENT STOPS
TCHDROPS AFTER
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Signalling charts of Dual Transfer Mode
5 Signalling charts of Dual Transfer ModeThe following figures show the signalling charts of Dual Transfer Mode:
Figure 87 MO DTM call establishment
MS BTS BSC MSC
MEASUREMENT REPORT
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
SABM
ESTABLISH INDICATION
UA
ASSIGNMENT COMPLETE
RR
HANDOVER PERFORMED
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
106000 MO_DTM_CALL_REQUESTS_INI
DTM REQUEST
MEASUREMENT RESULT
PHYSICAL CONTEXT REQUEST
PHYSICAL CONTEXT CONFIRM
DTM ASSIGNMENT COMMAND
105016 DTM_REQ_1_UL_PS_TSL or105017 DTM_REQ_2_UL_PS_TSL
105009 DTM_ALLOCATIONS_INITIAL
105015 PEAK_DTM_CS_SIMULTAN
105021 DTM_ALLOC_1_UL_PS_TSL or105022 DTM_ALLOC_2_UL_PS_TSL
Start T3107
051189 INTRA_DTM_MO_CS_TO_PS
106018 DTM_ASSIGN_COMMANDS
071038 REPORTING_TIME_BY_DTM_MS
071037 TCH_RESERV_BY_DTM_MS
MS in dedicated mode
PS data transfer in dual transfer mode
Stop T3107
DUMMY RLC BLOCK
UL RLC BLOCK
105026 UL_DTM_TBF_ESTABLISHMENTS
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Figure 88 MT DTM call establishment
MS BTS BSC MSC
SABM
UA
RR
105000 MT_DTM_CALL_REQUESTS_INI
SGSN
LLC PDU
MEASUREMENTREPORT MEASUREMENT RESULT
PHYSICAL CONTEXT REQUEST
CHANNEL ACTIVATION ACK
ASSIGNMENT COMPLETE
HANDOVER PERFORMED
RF CHANNEL RELEASE ACK
DTM ASSIGNMENT COMMAND
CHANNEL ACTIVATION
RF CHANNEL RELEASE
PHYSICAL CONTEXT CONFIRM
ESTABLISH INDICATION
105009 DTM_ALLOCATIONS_INITIAL
105023 DTM_ALLOC_1_DL_PS_TSL or105024 DTM_ALLOC_2_DL_PS_TSL
106018 DTM_ASSIGN_COMMANDS
051190 INTRA_DTM_MT_CS_TO_PS
071038 REPORTING_TIME_BY_DTM_MS
071037 TCH_RESERV_BY_DTM_MS
105018 DTM_REQ_1_DL_PS_TSL or105019 DTM_REQ_2_DL_PS_TSL
MS in dedicated mode
PS data transfer in dual transfer mode
105027 DL_DTM_TBF_ESTABLISHMENTS
(EGPRS) PACKET DOWNLINK ACK/NACK
DL RLC BLOCK
105015 PEAK_DTM_CS_SIMULTAN
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Signalling charts of Dual Transfer Mode
Figure 89 DTM call reallocation; too high CS connection interference
MS BTS BSC MSC
MEASUREMENT REPORT
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
DTM ASSIGNMENT COMMAND
SABM
ESTABLISH INDICATION
UA
ASSIGNMENT COMPLETE
RRHANDOVER PERFORMED
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
071038 REPORTING_TIME_BY_DTM_MS
MEASUREMENT RESULT
CS connection controldetects too high CSconnection interference
PHYSICAL CONTEXT REQUEST
PHYSICAL CONTEXT CONFIRM
071037 TCH_RESERV_BY_DTM_MS
106018 DTM_ASSIGN_COMMANDS
106006 DTM_REALLO_CS_REQUESTS
MS has a DTM allocation with one UL PS TSL allocation
DTM call continues on the new resources
105010 DTM_REALLOCATIONS
105016 DTM_REQ_1_UL_PS_TSL or105017 DTM_REQ_2_UL_PS_TSL
105021 DTM_ALLOC_1_UL_PS_TSL or105022 DTM_ALLOC_2_UL_PS_TSL
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Figure 90 DTM call reallocation; inadequate PS connection quality
MS BTS BSC MSC
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
SABMESTABLISH INDICATION
UA
ASSIGNMENT COMPLETE
RR
HANDOVER PERFORMED
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
MEASUREMENT REPORT
071038 REPORTING_TIME_BY_DTM_MS
PS quality control detectsinadequate quality
MEASUREMENT RESULT
PHYSICAL CONTEXT CONFIRM
PHYSICAL CONTEXT REQUEST
DTM ASSIGNMENT COMMAND
071037 TCH_RESERV_BY_DTM_MS
051191 INTRA_DTM_MT_PS_TO_PS
106018 DTM_ASSIGN_COMMANDS
105010 DTM_REALLOCATIONS
105005 DTM_REALLO_REQ_PS_QUAL
MS has a DTM allocation with one DL PS TSL allocation
DTM call continues on the new resources
105018 DTM_REQ_1_DL_PS_TSL or105019 DTM_REQ_2_DL_PS_TSL
105023 DTM_ALLOC_1_DL_PS_TSL or105024 DTM_ALLOC_1_DL_PS_TSL
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Figure 91 DTM call; internal inter-cell handover; CS connection power budget
BTS1 BTS2 BSC MSC
CHANNEL ACTIVATION
HANDOVER ACCESS
MS
PHYSICAL INFO
SABM
UA
RR
DTM INFORMATION
MS has a DTM allocation
RF CHANNEL RELEASE ACK
CHANNEL ACTIVATION ACK
MEASUREMENT REPORT
MEASUREMENT RESULT
CS connection control startsa power budget handover
HANDOVER COMMAND
HANDOVER DETECTION
ESTABLISH INDICATION
HANDOVER COMPLETE
HANDOVER PERFORMED
RF CHANNEL RELEASE
CS connection continues in the CS territory of the target cell.The DTM call is then re-established in the target cell.
105011 DTM_DURATION_SUM_FR
004199 DTM_CALL_HO_SUCC_TO_DTM_CELL
072202 DL_TBF_RELEASES_DUE_DTM
072201 UL_TBF_RELEASES_DUE_DTM
004198 DTM_CALL_HO_ATT_TO_DTM_CELL
106013 DTM_RELEASES_DUE_CS_HO
071037 TCH_RESERV_BY_DTM_MS
071038 REPORTING_TIME_BY_DTM_MS
HANDOVER COMPLETE
004194 DTM_CALL_HO_FROM_DTM_CELL
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Figure 92 DTM call; internal inter-cell handover; lack of resources in the PS territory
BTS1 BTS2 BSC MSC
HANDOVER ACCESS
MS
PHYSICAL INFO
SABM
UA
RR
DTM INFORMATION
CHANNEL ACTIVATION ACK
RF CHANNEL RELEASE ACK
HANDOVER PERFORMED
CHANNEL ACTIVATION
HANDOVER COMMAND
HANDOVER DETECTION
ESTABLISH INDICATION
HANDOVER COMPLETE
HANDOVER COMPLETE
RF CHANNEL RELEASE
004194 DTM_CALL_HO_FROM_DTM_CELL
004199 DTM_CALL_HO_SUCC_TO_DTM_CELL
004198 DTM_CALL_HO_ATT_TO_DTM_CELL
004195DTM_HO_DUE_LACK_OF_RESOURCES
072201 UL_TBF_RELEASES_DUE_DTM
072202 DL_TBF_RELEASES_DUE_DTM
105011 DTM_DURATION_SUM_FR
071038 REPORTING_TIME_BY_DTM_MS
071037 TCH_RESERV_BY_DTM_MS
106013 DTM_RELEASES_DUE_CS_HO
No free resources in the PS territory
CS connection continues in the CS territory of the target cell.The DTM call is then re-established in the target cell.
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Figure 93 DTM call; external handover, source BSC
MS BTS BSC MSC
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
MEASUREMENT RESULT
MEASUREMENT REPORT
HANDOVER REQUIRED
HANDOVER COMMAND
CLEAR COMMAND
CLEAR COMPLETE
004199 DTM_CALL_HO_SUCC_TO_DTM_CELL
071038 REPORTING_TIME_BY_DTM_MS
071037 TCH_RESERV_BY_DTM_MS
106013 DTM_RELEASES_DUE_CS_HO
072202 DL_TBF_RELEASES_DUE_DTM
105011 DTM_DURATION_SUM_FR
072201 UL_TBF_RELEASES_DUE_DTM
004198 DTM_CALL_HO_ATT_TO_DTM_CELL
MS has a DTM allocation
Channel reservation and activation in the target BSC
HO signalling in the target BSC
CS connection continues in the CS territory of the target cell.The DTM call is then re-established in the target cell.
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Figure 94 DTM call; external handover, target BSC
MS BTS BSC MSC
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
HANDOVER ACCESS
HANDOVER DETECTION
PHYSICAL INFO
SABM
ESTABLISH INDICATION
UA
HANDOVER COMPLETE
RR
DTM INFORMATION
HANDOVER REQUEST
HANDOVER REQUESTACKNOWLEDGE
External handover decision in the source BSC
HO signalling in the source BSC, the MSC sends a HO command
Old resources released in the source BSC
The DTM call is then re-established in the target cell.CS connection continues in the CS territory of the target cell.
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Figure 95 DTM call release initiated by the MS
MS BTS BSC MSC
DISCONNECT
RELEASE
RELEASE COMPLETE
CLEAR COMMAND
106012 DTM_RELEASES_DUE_CS_RELEASE
CLEAR COMPLETE
CHANNEL RELEASE
DEACTIVATE SACCH
UA
DISC
RELEASE INDICATION
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
MS has a DTM allocation with ongoing UL and/or DL TBFs
072201 UL_TBF_RELEASES_DUE_DTM
072202 DL_TBF_RELEASES_DUE_DTM
105011 DTM_DURATION_SUM_FR
071037 TCH_RESERV_BY_DTM_MS
071038 REPORTING_TIME_BY_DTM_MS
START TIMER T3111
TIMER T3111 EXPIRES
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Figure 96 DTM call release; packet data transfer end
MS BTS BSC MSC
SABM
UA
106011 DTM_RELEASES_DUE_PS_RELEASE
SGSN
Last LLC PDU
RR
DL Data Frame (final block), polling
UNACK MODE: Packet Control Ack
ASSIGNMENT COMMAND
PHYSICAL CONTEXT REQUEST
ASSIGNMENT COMPLETE
HANDOVER PERFORMED
RF CHANNEL RELEASE ACK
ACK MODE: (EGPRS) Packet DL Ack /Nack (final ack)
PHYSICAL CONTEXT CONFIRM
CHANNEL ACTIVATION ACK
CHANNEL ACTIVATION
RF CHANNEL RELEASE
051192 INTRA_DTM_PS_TO_CS
105011 DTM_DURATION_SUM_FR
071038 REPORTING_TIME_BY_DTM_MS
071037 TCH_RESERV_BY_DTM_MS
CS connection continues in the CS territory
MS has a DTM allocation with ongoing UL and/or DL TBFs
RR
ESTABLISH INDICATION
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Figure 97 DTM REQUEST rejected when IMSI data not available
MS BTS BSC MSC
CHANNEL REQUEST
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
IMMEDIATE ASSIGNMENT
SABMESTABLISH INDICATION
UA
CLASSMARK CHANGE
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
ASSIGNMENT COMMAND
SABMESTABLISH INDICATION
UA
ASSIGNMENT COMPLETE
DTM REQUEST
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
CONNECT ACK
CONNECT
DTM REJECT
106002 MO_DTM_CALL_REJECTS_INI
GPRS INFORMATION
SETUP
CALL PROCEEDING
ALERT
RR
SGSN
LLC PDU
CM SERVICE REQUEST
CLASSMARK UPDATE
COMMON ID (not received)
106000 MO_DTM_CALL_REQUESTS_INI
106017 DTM_IMSI_NOT_AVAILABLE
PHYSICAL CONTEXT REQUEST
PHYSICAL CONTEXT CONFIRM
Authentication, identity request and ciphering
MS continues in dedicated mode.
ASSIGNMENT REQUEST
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Figure 98 Unsuccessful MO DTM; activation of a CS TCH in the PS territory fails, timer expires while waiting for CHANNEL ACTIVATION ACK
MS BTS BSC
MEASUREMENT REPORT
CHANNEL ACTIVATION
PHYSICAL CONTEXT REQUEST
PHYSICAL CONTEXT CONFIRM
106000 MO_DTM_CALL_REQUESTS_INI
CHANNEL ACTIVATION ACK (not received)
Start T9103
T9103 expires
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
DTM REQUEST
MEASUREMENT RESULT
105016 DTM_REQ_1_UL_PS_TSL or105017 DTM_REQ_2_UL_PS_TSL
105009 DTM_ALLOCATIONS_INITIAL
105021 DTM_ALLOC_1_UL_PS_TSL or105022 DTM_ALLOC_2_UL_PS_TSL
106002 MO_DTM_CALL_REJECTS_INI
CS call continues on the old TCH channel
MS in dedicated mode
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Figure 99 Unsuccessful MT DTM; activation of a CS TCH in the PS territory fails, timer expires while waiting for CHANNEL ACTIVATION ACK
SGSNMS BTS BSC
MEASUREMENT REPORT
CHANNEL ACTIVATION
Start T9103
T9103 expires
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
105000 MT_DTM_CALL_REQUESTS_INI
DL LLC PDU
MEASUREMENT RESULT
PHYSICAL CONTEXT REQUEST
CHANNEL ACTIVATION ACK (not received)
105009 DTM_ALLOCATIONS_INITIAL
105019 DTM_REQ_2_DL_PS_TSL105018 DTM_REQ_1_DL_PS_TSL or
105023 DTM_ALLOC_1_DL_PS_TSL or105024 DTM_ALLOC_2_DL_PS_TSL
105002 MT_DTM_CALL_REJECTS_INI
PHYSICAL CONTEXT CONFIRM
MS in dedicated mode
CS call continues on the old TCH channel
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Figure 100 Unsuccessful MT DTM; DTM ASSIGNMENT FAILURE received
MS BTS BSC
SABM
ESTABLISH INDICATION
UA
DTM ASSIGNMENT FAILURE
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
RR
DTM ASSIGNMENT COMMAND
106008 DTM_ASSIGN_FAILURES_INI
106018 DTM_ASSIGN_COMMANDS
CS call continues on the old TCH channel
MT DTM call establishment started; see MT DTM scenario untilDTM ASSIGNMENT COMMAND in figure MT DTM call establishment
105011 DTM_DURATION_SUM_FR
105015 PEAK_DTM_CS_SIMULTAN
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Figure 101 Timer T3107 expires while waiting for ASSIGNMENT COMPLETE
MS BTS BSC MSC
SABM
ESTABLISH INDICATION
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
106010 MS_LOST_DURING_ASSIGNMENT
CLEAR REQUEST
CLEAR COMMAND
CLEAR COMPLETE
DTM ASSIGNMENT COMMAND
UA
ASSIGNMENT COMPLETE (not received)
T3107 expires
106018 DTM_ASSIGN_COMMANDS
071038 REPORTING_TIME_BY_DTM_MS
071037 TCH_RESERV_BY_DTM_MS
Release of the new TCH channel
Release of the old TCH channel
MO or MT DTM call establishment started; see MT DTM scenario untilDTM ASSIGNMENT COMMAND in figure MT DTM call establishment
Start T3107
105011 DTM_DURATION_SUM_FR
105015 PEAK_DTM_CS_SIMULTAN
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Figure 102 DTM call reallocation failure; DTM ASSIGNMENT FAILURE received
MS BTS BSC
PHYSICAL CONTEXT REQUEST
PHYSICAL CONTEXT CONFIRM
MEASUREMENT REPORT
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
RR
106009 DTM_ASSIGN_FAILURES_REALLO
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
105005 DTM_REALLO_REQ_PS_QUAL
PS quality control detectsinadequate quality
MEASUREMENT RESULT
DTM ASSIGNMENT COMMAND
DTM ASSIGNMENT FAILURE
105010 DTM_REALLOCATIONS
071038 REPORTING_TIME_BY_DTM_MS
071037 TCH_RESERV_BY_DTM_MS
DTM call continues on the old resources
MS has a DTM allocation with ongoing UL and/or DL TBFs
106018 DTM_ASSIGN_COMMANDS
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Figure 103 DTM CS connection drops after ASSIGNMENT COMPLETE; CONNEC-TION FAILURE received
MS BTS BSC MSC
HANDOVER PERFORMED
DISC
CLEAR COMMAND
CHANNEL RELEASE
DEACTIVATE SACCH
UA
RF CHANNEL RELEASE ACK
RF CHANNEL RELEASE
RELEASE INDICATION
CLEAR COMPLETE
CONNECTION FAILURECLEAR REQUEST
001234 DROP_DTM_TCH_ASCMPL_RFCH_REL
Radio Link Failure detected
ASSIGNMENT COMPLETE
MS has a DTM allocation with ongoing UL and/or DL TBFs;for example, see figure MO DTM call establishment
001233 DROP_AFTER_DTM_TCH_ASSIGN
071037 TCH_RESERV_BY_DTM_MS
071038 REPORTING_TIME_BY_DTM_MS
105011 DTM_DURATION_SUM_FR
072202 DL_TBF_RELEASES_DUE_DTM072201 UL_TBF_RELEASES_DUE_DTM or
RF CHANNEL RELEASE ACK
RF CHANNEL RELEASE
106014 DTM_RELEASES_DUE_OTHER
051189 INTRA_DTM_MO_CS_TO_PS
071038 REPORTING_TIME_BY_DTM_MS
071037 TCH_RESERV_BY_DTM_MS
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Figure 104 DTM CS connection drops after ASSIGNMENT COMPLETE; RELEASE INDICATION not received
MS BTS BSC MSC
RELEASE
RELEASE COMPLETE
CLEAR COMMAND
CHANNEL RELEASE
DEACTIVATE SACCH SCCP RELEASE COMPLETE
SCCP RELEASE
DISCONNECT
RF CHANNEL RELEASE ACK
RF CHANNEL RELEASE
001234 DROP_DTM_TCH_ASCMPL_RFCH_REL
DISC (not received)
RELEASE INDICATION (not received)
T3109 expires
Start T3109
MS has a DTM allocation with ongoing UL and/or DL TBFs; for example, see figureMO DTM call establishment
105011 DTM_DURATION_SUM_FR
072202 DL_TBF_RELEASES_DUE_DTM
072201 UL_TBF_RELEASES_DUE_DTM
CLEAR COMPLETE
106012 DTM_RELEASES_DUE_CS_RELEASE
071038 REPORTING_TIME_BY_DTM_MS
071037 TCH_RESERV_BY_DTM_MS
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Figure 105 Unsuccessful DTM call reallocation; timer T3107 expires while waiting for ASSIGNMENT COMPLETE
MS BTS BSC MSC
CHANNEL ACTIVATION
CHANNEL ACTIVATION ACK
SABM
ESTABLISH INDICATION
MEASUREMENT REPORT
106018 DTM_ASSIGN_COMMANDS
T3107 expires
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
RF CHANNEL RELEASE
RF CHANNEL RELEASE ACK
CLEAR REQUEST
CLEAR COMMAND
CLEAR COMPLETE
106024 MS_LOST_DURING_REALLOCATION
071037 TCH_RESERV_BY_DTM_MS
071038 REPORTING_TIME_BY_DTM_MS
105011 DTM_DURATION_SUM_FR
T3111 expires
PS quality control detects inadequate quality
105010 DTM_REALLOCATIONS
105018 DTM_REQ_1_DL_PS_TSL or
105019 DTM_REQ_2_DL_PS_TSL
105023 DTM_ALLOC_1_DL_PS_TSL or
105024 DTM_ALLOC_2_DL_PS_TSL
001233 DROP_AFTER_DTM_TCH_ASSIGN
001234 DROP_DTM_TCH_ASCMPL_RFCH_REL
Release of the old TCH channel
Release of the new TCH channel
MS has a DTM allocation with one DL PS TSL allocation
105005 DTM_REALLO_REQ_PS_QUAL
DTM ASSIGNMENT COMMAND DTM ASSIGNMENT COMMAND
PHYSICAL CONTEXT REQUEST
MEASUREMENT RESULT
PHYSICAL CONTEXT CONFIRM
ASSIGNMENT COMPLETE (not received)
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Figure 106 DTM TBF assignment failure; UL RLC block not received
MS BTS BSC MSC
CHANNEL ACTIVATION
SABMESTABLISH INDICATION
UL RLC block (not received)
106018 DTM_ASSIGN_COMMANDS
106000 MO_DTM_CALL_REQUESTS_INI
MS requests a UL TBF
dummy RLC block
Expiry of DTM_CALL_ASSIGN_TIMER
105008 DTM TBF ASSIGNMENT FAILURES
105011 DTM_DURATION_SUM_FR
ASSIGNMENT COMMAND
ESTABLISH INDICATIONUA
ASSIGNMENT COMPLETE
HANDOVER PERFORMED
RF CHANNEL RELEASE
051198 INTRA_DTM_PS_TO_CS
071037 TCH_RESERV_BY_DTM_MS
071038 REPORTING_TIME_BY_DTM_MS
RR
106011 DTM_RELEASES_DUE_PS_RELEASE
105009 DTM_ALLOCATIONS_INITIAL
105016 DTM_REQ_1_UL_PS_TSL or
105017 DTM_REQ_2_UL_PS_TSL
105021 DTM_ALLOC_1_UL_PS_TSL or
105022 DTM_ALLOC_2_UL_PS_TSL
105015 PEAK_DTM_CS_SIMULTANUA
MEASUREMENT RESULT
ASSIGNMENT COMMAND
dummy RLC block
ASSIGNMENT COMPLETEASSIGNMENT COMPLETE
CS connection continues in the CS territory
DTM ASSIGNMENT COMMAND DTM ASSIGNMENT COMMAND
PHYSICAL CONTEXT REQUEST
PHYSICAL CONTEXT CONFIRM
CHANNEL ACTIVATION ACK
PHYSICAL CONTEXT REQUEST
PHYSICAL CONTEXT CONFIRM
CHANNEL ACTIVATION ACK
CHANNEL ACTIVATION
RF CHANNEL RELEASE ACK
MS in dedicated mode, MO call
DTM REQUEST DTM REQUEST
MEASUREMENT REPORT
RR
SABM
ASSIGNMENT COMPLETE
Start DTM_CALL_ASSIGN_TIMER
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Figure 107 DTM-capable MS paging
Related topics
• 1 Traffic Measurement • Counters of Traffic Measurement
• 4 Handover Measurement • Counters of Handover Measurement
• 51 BSC Level Clear Code (PM) Measurement • Counters of 51 BSC Level Clear Code (PM) Measurement
• 71 MS Capability Indication Measurement • Counters of MS Capability Indication Measurement
• 72 Packet Control Unit Measurement • Counters of Packet Control Unit Measurement
• 105 PS DTM Measurement • Counters of PS DTM Measurement
• 106 CS DTM Measurement • Counters of CS DTM Measurement