Resource Access

3 Resource Access Measurement

DN9813745Issue 10-0 en18/03/2008

# Nokia Siemens Networks 1 (81)

BSC3153Nokia GSM/EDGE BSS, Rel. BSS13, BSC andTCSM, Rel. S13, Product Documentation, v.1

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Contents

Contents 3

List of tables 5

List of figures 6

Summary of changes 7

1 3 Resource Access Measurement 9

2 Counters of Resource Access Measurement 132.1 003000 / PAGING MESSAGES SENT TO BTS 132.2 003001 / IMMEDIATE ASSIGNMENT MESSAGES SENT TO BTS 132.3 003002 / IMMEDIATE ASSIGNMENT REJECT MESSAGES SENT TO

BTS 142.4 003003 / SMS BC REQUEST MESSAGES SENT TO BTS 152.5 003004 / CHANNEL REQUEST MESSAGES RECEIVED FROM BTS 152.6 003005 / DELETE IND MESSAGES RECEIVED FROM BTS 162.7 003006 / AVE RACH SLOT COUNT 172.8 003007 / RES ACC DENOMINATOR 1 172.9 003008 / AVE PCH LOAD ON CCCH 182.10 003009 / RES ACC DENOMINATOR 2 192.11 003010 / PEAK RACH LOAD ON CCCH 192.12 003011 / PEAK PCH LOAD ON CCCH 202.13 003012 / SUCCESS SEIZURE FOR MOBILE TERM CALL 212.14 003013 / SUCCESS SEIZURE FOR MOBILE ORIG CALL 212.15 003014 / AVE RACH BUSY COUNT 222.16 003015 / RES ACC DENOMINATOR 3 232.17 003016 / AVE RACH ACCESS COUNT 232.18 003017 / RES ACC DENOMINATOR 4 242.19 003018 / MIN PAGING BUF 252.20 003019 / SDCCH LOC UPD 252.21 003020 / SDCCH CALL RE EST 262.22 003021 / SDCCH EMERG CALL 272.23 003022 / TCH EMERG CALL 272.24 003023 / TCH MTC 282.25 003024 / TCH MOC 282.26 003025 / TCH CALL RE EST 292.27 003026 / SUCC TCH SMS EST 302.28 003027 / UNSUCC TCH SMS EST 302.29 003028 / SUCC SDCCH SMS EST 312.30 003029 / UNSUCC SDCCH SMS EST 322.31 003030 / GHOST CCCH RES 322.32 003031 / REJ SEIZ ATT DUE DIST 332.33 003032 / TRX IN EXT AREA 342.34 003033 / IMSI DETACH SDCCH 342.35 003034 / IMSI DETACH TCH 352.36 003035 / MAX PAGING BUFFER CAPA 36

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Contents

2.37 003036 / AVE PAGING BUFFER CAPA 362.38 003037 / RES ACC DENOMINATOR 5 372.39 003038 / DELETE PAGING COMMAND 382.40 003039 / BCSU OVERLOAD LOWER LIMIT 392.41 003040 / BCSU OVERLOAD UPPER LIMIT 392.42 003041 / BCSU OVERLOAD DELETED RACH 402.43 003042 / TRX DIAGNOSTICS 402.44 003043 / TRX DIAGNOSTICS FAULT 412.45 003044 / SUCC SEIZ SUPPLEM SERV 422.46 003045 / TCH SUPPLEM SERV 422.47 003046 / AVE PCH GB LOAD ON CCCH 432.48 003047 / RES ACC DENOMINATOR 6 432.49 003048 / AVE PAGING GB BUF 442.50 003049 / RES ACC DENOMINATOR 7 452.51 003050 / MAX PAGING GB BUF 462.52 003051 / AVE PAGING LOAD AIR 462.53 003052 / RES ACC DENOMINATOR 8 472.54 003053 / AVE DRX AGCH LOAD AIR 482.55 003054 / RES ACC DENOMINATOR 9 492.56 003055 / AVE NON DRX AGCH LOAD AIR 492.57 003056 / RES ACC DENOMINATOR 10 502.58 003057 / PS PAGING MSG SENT 512.59 003058 / CS PAGING MSG SENT 522.60 003059 / CALL ASSIGN AFTER SMS 522.61 003060 / SPARE003060 532.62 003061 / SPARE003061 532.63 003062 / SPARE003062 542.64 003063 / SPARE003063 542.65 003064 / SUCC MO SMS SDCCH 552.66 003065 / UNSUCC MO SMS SDCCH 56

3 Signalling charts of Resource Access Measurement 57


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List of tables

Table 1. Measurement description of Resource Access Measurement 9

Table 2. Counters of Resource Access Measurement 9

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List of tables

List of figures

Figure 1. Basic call without counters. 58

Figure 2. Basic call without counters (cont.). 59Figure 3. Basic call with counters. 60

Figure 4. FACCH call setup due to SDCCH congestion. 61

Figure 5. Ghost reservation. 62

Figure 6. Busy AGCH-channel. 63

Figure 7. Unsuccessful channel request. 64

Figure 8. SMS broadcast. 64

Figure 9. Mobile originating SMS on a TCH. 65

Figure 10. Mobile terminating SMS on a TCH. 66

Figure 11. Mobile originating SMS on FACCH. 67

Figure 12. Mobile terminating SMS on FACCH. 68

Figure 13. Mobile originating SMS on an SDCCH. 69

Figure 14. Mobile terminating SMS on an SDCCH. 70

Figure 15. Mobile originating unsuccessful SMS on a TCH. 71

Figure 16. Mobile terminating unsuccessful SMS on a TCH. 72

Figure 17. Mobile originating unsuccessful SMS on FACCH. 73

Figure 18. Mobile terminating unsuccessful SMS on FACCH. 74

Figure 19. Mobile originating unsuccessful SMS on an SDCCH. 75

Figure 20. Mobile terminating unsuccessful SMS on an SDCCH. 76

Figure 21. CCCH load indication. 77

Figure 22. CCCH Load Indication if GPRS is activated in BTS and other conditionsare valid. 79

Figure 23. Unsuccessful channel requests because of BCSU overload. 80

Figure 24. PS Paging in GPRS 80

Figure 25. CS Paging in GPRS. 81


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Summary of changes

Changes between document issues are cumulative. Therefore, the latestdocument issue contains all changes made to previous issues.

Changes made between issues 10-0 and 9-2

Counter table format changed.

Changes made between issues 92 and 91

The Description and Updated fields of counters 003036 and 003037modified.

Changes made between issues 91 and 9

Editorial changes.

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Summary of changes


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1 3 Resource Access MeasurementResource Access Measurement registers information on all commoncontrol channels (CCCH) of the base station controller. The recorded itemsof data comprise the number of messages sent to the Abis interface. Themessages are sorted according to message type, average load on controlchannels, and the number of traffic channel seizures for mobile originating(MOC) and terminating calls (MTC). Signalling charts are drawn with theaccuracy of message interface.

Measurement description

Table 1. Measurement description of Resource Access Measurement

Measurement

Measurement ID

Measurement abbreviation

Resource Access Measurement

3

CCCH_ACC

Product BSC

Product software release S1

Target name BTS+TRX

Measurement counters

Table 2. Counters of Resource Access Measurement

Counter Counter number

Paging messages sent to BTS 003000

Immediate assignment messages sent to BTS 003001

Immediate assignment reject messages sent to BTS 003002SMS CB request messages sent to BTS 003003

Channel request messages received from BTS 003004

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Table 2. Counters of Resource Access Measurement (cont.)


Delete indication messages received from BTS 003005

Average RACH slot counter 003006

Resource access denominator 1 003007

Average PCH load on CCCH 003008


Peak RACH load on CCCH 003010

Peak PCH load on CCCH 003011

Success seizure for MTC 003012

Success seizure for MOC 003013

Average RACH busy counter 003014


Average RACH access counter 003016


Minimum paging buffer 003018

SDCCH location update 003019

SDCCH call re-establishment 003020

SDCCH emergency call 003021

TCH emergency call 003022

TCH MTC 003023

TCH MOC 003024

TCH call re-establishment 003025

Success TCH SMS establishment 003026

Unsuccessful TCH SMS establishment 003027

Success SDCCH SMS establishment 003028

Unsuccessful SDCCH SMS establishment 003029

Ghost CCCH reservation 003030

Rejected seizure attempt due to distance 003031TRX in extended area 003032

IMSI detach SDCCH 003033

IMSI detach TCH 003034

Maximum paging buffer capacity 003035

Average paging buffer capacity 003036


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Table 2. Counters of Resource Access Measurement (cont.)



Delete paging command 003038

BCSU overload lower limit 003039

BCSU overload upper limit 003040

BCSU overload deleted RACH 003041

TRX diagnostics 003042

TRX diagnostics fault 003043

Successful seizures of SDCCHs 003044

Successful seizures of TCHs 003045

Paging load paging buffer space on Gb-interference 003046


Average buffer occupancy percentage 003048


Maximum buffer occupancy percentage 003050

Average CCCH load radio block occupancy paging 003051


Average DRX AGCH 003053


Average NON-DRX AGCH 003055


PS paging command 003057

CS paging command 003058

Call assign after SMS 003059

Spare 003060

Spare 003061

Spare 003062

Spare 003063

Successful mobile-originated SMS establishment onan SDCCH

003064

Unsuccessful mobile-originated SMS establishmenton an SDCCH

003065

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Related topics

. Counters of Resource Access Measurement

. Signalling charts of Resource Access Measurement

. BSC Statistics Administration

. Activating and Testing BSS6037: Improved Solution for ExtendedCell

. BSC Measurement Counters Displaying Program (FOXMEA)

. Performance Measurements

. EDGE System Feature Description

. Extended Cell Range


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2 Counters of Resource AccessMeasurement

2.1 003000 / PAGING MESSAGES SENT TO BTS

Counter ID: 003000 Network element name: PAGING MESSAGES SENT TOBTS

Version: 2.1 NetAct name: PAGING_MSG_SENT

Description: Number of PAGING_COMMAND messages sent to the BTS.

Updated: When a PAGING_COMMAND message is sent to the BTS.

See figure Basic call with counters.

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: S1 Definition updated in release:

2.2 003001 / IMMEDIATE ASSIGNMENT MESSAGESSENT TO BTS

Counter ID: 003001 Network element name: IMMEDIATE ASSIGNMENTMESSAGES SENT TO BTS

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Counters of Resource Access Measurement

Version: 2.1 NetAct name: IMM_ASSGN_SENT

Description: Number of IMMEDIATE_ASSIGN_COMMAND messages sent to the BTS.

Updated: When an IMMEDIATE_ASSIGN_COMMAND message is sent to the BTS.

See figures:Basic call with countersBusy AGCH Channel




Operability class:





2.3 003002 / IMMEDIATE ASSIGNMENT REJECTMESSAGES SENT TO BTS

Counter ID: 003002 Network element name: IMMEDIATE ASSIGNMENTREJECT MESSAGES SENT TO BTS

Version: 2.1 NetAct name: IMM_ASSGN_REJ

Description: Number of IMMEDIATE_ASSIGNMENT_REJECT messages sent to the BTS.

Updated: This counter is updated when an IMMEDIATE_ASSIGNMENT_REJECT message is packedand sent to the BTS. The message can include one to four immediate assignment rejects.

The IMMEDIATE_ASSIGNMENT_REJECT message is sent to MS in the following cases:No free SDCCH.Abis interface process has no internal resources to handle the request.

See figure Unsuccessful channel request




Operability class:


3GPP Measurement name (Clause header):


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3GPP Measurement type:


Used from release: S1 Definition updated in release: S6

2.4 003003 / SMS BC REQUEST MESSAGES SENT TOBTS

Counter ID: 003003 Network element name: SMS BC REQUEST MESSAGESSENT TO BTS

Version: 2.1 NetAct name: SMS_BC_REQ_SENTDescription: Number of SMS_BROADCAST_REQUEST messages sent to the BTS.Updated: When all 4 SMS_BROADCAST_REQUEST messages are sent to the BTS.

See figure SMS broadcast




Operability class:





2.5 003004 / CHANNEL REQUEST MESSAGESRECEIVED FROM BTS

Counter ID: 003004 Network element name: CHANNEL REQUEST MESSAGESRECEIVED FROM BTS

Version: 2.1 NetAct name: CH_REQ_MSG_RECDescription: Number of CHANNEL_REQUIRED messages received from the BTS.

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Updated: When a CHANNEL_REQUIRED message is received from the BTS. These requests arerelated to CSW channels. PSW channel requests have their own counter 072082.

See figures:Basic call with countersGhost reservationBusy AGCH channelUnsuccesful channel requestUnsuccesful channel requests due to BCSU overload




Operability class:





2.6 003005 / DELETE IND MESSAGES RECEIVEDFROM BTS

Counter ID: 003005 Network element name: DELETE IND MESSAGESRECEIVED FROM BTS

Version: 2.1 NetAct name: DEL_IND_MSG_REC

Description: Number of DELETE_INDICATION messages received from the BTS.

Updated: When a DELETE_INDICATION message is received from the BTS.

See figure Busy AGCH Channel




Operability class:






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2.7 003006 / AVE RACH SLOT COUNT

Counter ID: 003006 Network element name: AVE RACH SLOT COUNT

Version: 2.1 NetAct name: AVE_RACH_SLOT

Description: Average number of the RACH slots on a CCCH.

Counter 003007 is updated along with this counter.

Updated: When the value of the RACH load is received in a CCCH_LOAD_INDICATION messagefrom the BTS during a measurement period. The new value of the RACH load is added to theprevious value, and the number of events is increased by one.

See figure CCCH load indication.




003007: RES ACC DENOMINATOR 1

Operability class:





2.8 003007 / RES ACC DENOMINATOR 1

Counter ID: 003007 Network element name: RES ACC DENOMINATOR 1

Version: 2.1 NetAct name: RES_ACC_DENOM1

Description: Denominator of the average RACH slot number (always > 0).


Updated: See figure CCCH load indication


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003006: AVE RACH SLOT COUNT

Operability class:





2.9 003008 / AVE PCH LOAD ON CCCH

Counter ID: 003008 Network element name: AVE PCH LOAD ON CCCH

Version: 2.1 NetAct name: AVE_PCH_LOAD

Description: When divided by the value of counter 003009, this counter tells the Average PCH load ona CCCH. It indicates the remaining space for Paging Commands associated with this CCCH timeslot,given as the number of additional Paging Commands that it is possible to store. The smaller thevalue, the greater the load on the PCH.

This counter is updated along with counter 003009.

Updated: Cumulatively during the measurement period every time when the latest value of the PCHload is received in a CCCH_LOAD_INDICATION message from the BTS.






Operability class:






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Description: Denominator of the average PCH load on CCCH (always > 0).


Updated: See figure CCCH load indication.




003008: AVE PCH LOAD ON CCCH

Operability class:





2.11 003010 / PEAK RACH LOAD ON CCCH

Counter ID: 003010 Network element name: PEAK RACH LOAD ON CCCH

Version: 2.1 NetAct name: PEAK_RACH_LOAD

Description: Peak value of the number of busy RACHs on a CCCH.

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Updated: When the value of the RACH load received in a CCCH_LOAD_INDICATION messageexceeds the previous value of the RACH load during the measurement period.

NOTE! This RACH counter is triggered when the RX Level is above -100dBm. Other detectionmethods (like CRC or S/N) are not applied. This means that high load on RACH may occure evenwithout a significant number of CHANNEL_REQUIRED messages. For example, RACHs from differentMSs can clash and cause a high signal level, but the decoding does not find any detectable RACH.The interference causes lots of bursts that trigger the counter, but these bursts are then filtered out inthe detection.


Logical type: Max Trigger type: Event Sampling interval:



Operability class:





2.12 003011 / PEAK PCH LOAD ON CCCH

Counter ID: 003011 Network element name: PEAK PCH LOAD ON CCCH

Version: 2.0 NetAct name: PEAK_PCH_LOAD

Description: This counter is NOT relevant.

This counter has been replaced by counter 003018 MIN PAGING BUF.

Updated:

Logical type: Trigger type: Sampling interval:

Unit: Range: Example values:


003018: MIN PAGING BUF

Operability class:




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2.13 003012 / SUCCESS SEIZURE FOR MOBILE TERMCALL

Counter ID: 003012 Network element name: SUCCESS SEIZURE FOR MOBILETERM CALL

Version: 2.1 NetAct name: SUCC_SEIZ_TERM

Description: Number of successful seizures of SDCCHs for an MTC.

Updated: When an ESTABLISH_INDICATION message with paging response is received on SDCCHfrom the BTS.





Operability class:





2.14 003013 / SUCCESS SEIZURE FOR MOBILE ORIGCALL

Counter ID: 003013 Network element name: SUCCESS SEIZURE FOR MOBILEORIG CALL

Version: 2.1 NetAct name: SUCC_SEIZ_ORIG

Description: Number of successful seizures for SDCCH for an MOC.

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Updated: When an ESTABLISH_INDICATION message with CM service request is received onSDCCH from the BTS.

Note that this counter is updated also in case of an SMS or Supplementary Service Requests.





Operability class:





2.15 003014 / AVE RACH BUSY COUNT

Counter ID: 003014 Network element name: AVE RACH BUSY COUNT

Version: 2.1 NetAct name: AVE_RACH_BUSY

Description: Average number of busy RACHs on a CCCH.


Updated: When the value of the RACH load is received in a CCCH_LOAD_INDICATION messagefrom the BTS during a measurement period. The number of busy RACHs is added to the previousvalue and the number of the events is increased by one.

NOTE! This RACH counter is triggered when the RX Level is above -100dBm. Other detectionmethods (like CRC or S/N) are not applied. This means that high load on RACH may occure evenwithout a significant number of CHANNEL_REQUIRED messages. For example, RACHs from differentMSs can clash and cause a high signal level, but the decoding does not find any detectable RACH.The interference causes lots of bursts that trigger the counter, but these bursts are then filtered out inthe detection.







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Operability class:








Description: Denominator of the average number of busy RACHs (always > 0).






003014: AVE RACH BUSY COUNT

Operability class:





2.17 003016 / AVE RACH ACCESS COUNT

Counter ID: 003016 Network element name: AVE RACH ACCESS COUNT

Version: 2.1 NetAct name: AVE_RACH_ACCESS

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Description: Number of average RACH accesses on a CCCH.


Updated: When the value of the RACH load is received in a CCCH_LOAD_INDICATION messagefrom the BTS during a measurement period. The number of RACH accesses is added to the previousvalue and the number of events is increased by one.

NOTE! This counter is updated by RACH bursts above the -100 dBm level that have passed thedetection (CRC, S/N) in the BTS.






Operability class:








Description: Denominator of the average number of RACH accesses (always > 0).






003016: AVE RACH ACCESS COUNT

Operability class:


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2.19 003018 / MIN PAGING BUF

Counter ID: 003018 Network element name: MIN PAGING BUF

Version: 2.1 NetAct name: MIN_PAGING_BUF

Description: Minimum size of the paging buffer on a CCCH (Peak value of the average PCH load: thesmaller the value, the greater the load on the PCH).Updated: When the value of the PCH load with the size of the paging buffer received in aCCCH_LOAD_INDICATION message from the BTS is smaller than the previous value during ameasurement period. 0xFFFFFFFF means unknown.


Logical type: Min Trigger type: Event Sampling interval:



Operability class:





2.20 003019 / SDCCH LOC UPD

Counter ID: 003019 Network element name: SDCCH LOC UPD

Version: 2.1 NetAct name: SDCCH_LOC_UPD

Description: Number of successful seizures of SDCCHs for location update.

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Updated: When an ESTABLISH_INDICATION message with request for a location update is receivedon SDCCH from the BTS.





Operability class:





2.21 003020 / SDCCH CALL RE EST

Counter ID: 003020 Network element name: SDCCH CALL RE EST

Version: 2.1 NetAct name: SDCCH_CALL_RE_EST

Description: Number of successful SDCCH seizures for call re-establishment attempts.

Updated: When an ESTABLISHMENT_INDICATION message for a call re-establishment is receivedon SDCCH from the BTS. Note that this counter counts only the number of re-establisment attemptson SDCCH. Counter 057022 gives the number of SDCCH re-establishment assignments.





Operability class:






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2.22 003021 / SDCCH EMERG CALL

Counter ID: 003021 Network element name: SDCCH EMERG CALL

Version: 2.1 NetAct name: SDCCH_EMERG_CALL

Description: Number of successful seizures of SDCCHs for an emergency call.

Updated: When an ESTABLISH_INDICATION message for an emergency call is received on SDCCHfrom the BTS.





Operability class:





2.23 003022 / TCH EMERG CALL

Counter ID: 003022 Network element name: TCH EMERG CALL

Version: 2.1 NetAct name: TCH_EMERG_CALL

Description: Number of successful seizures of TCHs for an emergency call in FACCH call setup dueto SDCCH congestion. If the FACCH call setup is turned off, the counter value is zero.

Updated: When an ESTABLISH_INDICATION message for an emergency call is received on TCHfrom the BTS.

See figure FACCH call setup due to SDCCH congestion




Operability class:

Related to feature:

BSS5290: FACCH Call Setup due to SDCCH Congestion

Related to standard:

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2.24 003023 / TCH MTC

Counter ID: 003023 Network element name: TCH MTC

Version: 2.1 NetAct name: TCH_MTC

Description: Number of successful seizures of TCHs for MTC in FACCH call setup due to SDCCHcongestion. If the FACCH call setup is turned off, the counter value is zero.

Updated: When an ESTABLISH_INDICATION message with a paging response is received on TCHfrom the BTS.





Operability class:

Related to feature:






2.25 003024 / TCH MOC

Counter ID: 003024 Network element name: TCH MOC

Version: 2.1 NetAct name: TCH_MOC

Description: Number of successful seizures of TCHs for MOC in FACCH call setup due to SDCCHcongestion. If the FACCH call setup is turned off, the counter value is zero.


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Updated: When an ESTABLISH_INDICATION message with a request for CM service is received onTCH from the BTS.





Operability class:

Related to feature:






2.26 003025 / TCH CALL RE EST

Counter ID: 003025 Network element name: TCH CALL RE EST

Version: 2.1 NetAct name: TCH_CALL_RE_EST

Description: Number of successful TCH seizures for call re-establishment attempts in FACCH callsetup due to SDCCH congestion. If the FACCH call setup is turned off, the counter value is zero.

Updated: When an ESTABLISH_INDICATION message for a call re-establishment is received on TCHfrom the BTS. Note that this counter counts only the number of re-establisment attempts on TCH.Counter 057032 gives the number of TCH re-establishment assignments.





Operability class:

Related to feature:




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2.27 003026 / SUCC TCH SMS EST

Counter ID: 003026 Network element name: SUCC TCH SMS EST

Version: 2.1 NetAct name: SUCC_TCH_SMS_EST

Description: Number of SMSs successfully established on a TCH.

Updated: When an ESTABLISH_INDICATION message (mobile originating SMS) or anESTABLISH_CONFIRM message (mobile terminating SMS) is received on TCH from the BTS.

See figures:- Mobile originating SMS on a TCH- Mobile terminating SMS on a TCH- Mobile originating SMS on FACCH- Mobile terminating SMS on FACCH




Operability class:





2.28 003027 / UNSUCC TCH SMS EST

Counter ID: 003027 Network element name: UNSUCC TCH SMS EST

Version: 2.1 NetAct name: UNSUCC_TCH_SMS_EST

Description: Number of unsuccessful establishments of SMSs on a TCH.


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Updated: When establishment of SMS fails on TCH.

See figures:- Mobile originating unsuccessful SMS on a TCH- Mobile terminating unsuccessful SMS on a TCH- Mobile originating unsuccessful SMS on FACCH- Mobile terminating unsuccessful SMS on FACCH




Operability class:





2.29 003028 / SUCC SDCCH SMS EST

Counter ID: 003028 Network element name: SUCC SDCCH SMS EST

Version: 2.1 NetAct name: SUCC_SDCCH_SMS_EST

Description: Number of SMSs successfully established on an SDCCH.

Updated: When an ESTABLISH_INDICATION message (mobile originating SMS) or anESTABLISH_CONFIRM message (mobile terminating SMS) is received on SDCCH from the BTS.

See figures:- Mobile originating SMS on an SDCCH- Mobile terminating SMS on an SDCCH




Operability class:





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2.30 003029 / UNSUCC SDCCH SMS EST

Counter ID: 003029 Network element name: UNSUCC SDCCH SMS EST

Version: 2.1 NetAct name: UNSUCC_SDCCH_SMS_EST

Description: Number of unsuccessful establishments of SMSs on an SDCCH.

Updated: When the establishment of an SMS fails on SDCCH.

See figures:- Mobile originating unsuccessful SMS on an SDCCH- Mobile terminating unsuccessful SMS on an SDCCH




Operability class:





2.31 003030 / GHOST CCCH RES

Counter ID: 003030 Network element name: GHOST CCCH RES

Version: 2.1 NetAct name: GHOST_CCCH_RES

Description: Number of ghost reservations on a CCCH.

See also counter 003031.

Updated: When a ghost reservation is detected on a CCCH. This kind of random access can becaused, for example, by white noise or co-channel interference. Note that the ghosts triggering thiscounter have illegal establishment cause. Ghost accessess with legal establishment cause get onSDCCH and later fail typically causing the triggering of counter 0010075.

See figure Ghost reservation




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003031: REJ SEIZ ATT DUE DIST

Operability class:





2.32 003031 / REJ SEIZ ATT DUE DIST

Counter ID: 003031 Network element name: REJ SEIZ ATT DUE DIST

Version: 2.1 NetAct name: REJ_SEIZ_ATT_DUE_DIST

Description: Number of seizure attempts rejected due to distance.


Updated: When random access is rejected by the BSC because of a too long distance between theMS and BTS. This kind of random access can be caused, for example, by white noise or co-channelinterference.

See figure Ghost reservation




003030: GHOST CCCH RES

Operability class:

Related to feature:

BSS5280: Distance Checking in Resource Allocation





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2.33 003032 / TRX IN EXT AREA

Counter ID: 003032 Network element name: TRX IN EXT AREA

Version: 2.1 NetAct name: TRX_TYPE

Description: Normal TRX / extended TRX

0 = normal area1= extended area

Updated:

Logical type: Variable Trigger type: Event Sampling interval:



Operability class:

Related to feature:

BSS6037: Extended Cell Range





2.34 003033 / IMSI DETACH SDCCH

Counter ID: 003033 Network element name: IMSI DETACH SDCCH

Version: 2.1 NetAct name: IMSI_DETACH_SDCCH

Description: Number of successful seizures of SDCCHs for IMSI detach.

Updated: When an ESTABLISH_INDICATION message for an IMSI detach is received on SDCCHfrom the BTS.

See figure Basic call with counters





18/03/2008


Operability class:

Related to feature:

BSS7042: Measurement Improvements





2.35 003034 / IMSI DETACH TCH

Counter ID: 003034 Network element name: IMSI DETACH TCH

Version: 2.1 NetAct name: IMSI_DETACH_TCH

Description: Number of successful seizures of TCHs for IMSI detach in FACCH call setup due toSDCCH congestion. If the FACCH call setup is turned off, then the counter value is zero.

Updated: When an ESTABLISH_INDICATION message for an IMSI detach is received on TCH fromthe BTS.





Operability class:

Related to feature:

BSS7042: Measurement Improvements





DN9813745Issue 10-0 en18/03/2008



2.36 003035 / MAX PAGING BUFFER CAPA

Counter ID: 003035 Network element name: MAX PAGING BUFFER CAPA

Version: 2.1 NetAct name: MAX_PAGING_BUFFER_CAPA

Description: Maximum percent of paging buffer capacity. This counter indicates maximum pagingbuffer occupancy percentage during the reporting period. The range of this counter is 0-100% with 1%intervals.

Updated: When the value of the maximum paging buffer received in a CCCH_LOAD_INDICATIONmessage exceeds the previous value of the paging buffer during a measurement period.

See figure CCCH load indication


Unit: % Range: 0-100 Example values:


Operability class:

Related to feature:

BSS7048: CCCH Improvements





2.37 003036 / AVE PAGING BUFFER CAPA

Counter ID: 003036 Network element name: AVE PAGING BUFFER CAPA

Version: 2.1 NetAct name: AVE_PAGING_BUFFER_CAPA_NUMER

Description: The sum of the average paging buffer occupancy percentages. Each time a CCCH loadreporting period ends, the occupancy percentage is calculated and reported in a CCCH LOADINDICATION message. The average is calculated with (100*N)/N(max)%, where N is the occupiedbuffer space and N(max) is the maximum buffer space during the CCCH load reporting period.

The CCCH load reporting period is the time between CCCH LOAD INDICATION message sendings.This counter stores the sum of the average paging buffer values received in CCCH LOADINDICATION messages.



18/03/2008


Updated: When a CCCH LOAD INDICATION message is received from the BTS. The average pagingbuffer value is added to the previous value.



Unit: % Range: Example values:



Operability class:

Related to feature:








Version: 2.1 NetAct name: AVE_PAGING_BUFFER_CAPA_DENOM

Description: Denominator of the counter 003036 AVE PAGING BUFFER CAPA (always > 0).


Updated: When a CCCH LOAD INDICATION message is received from the BTS and the averagepaging buffer occupancy percentage is reported in the message.





003036: AVE PAGING BUFFER CAPA

Operability class:

DN9813745Issue 10-0 en18/03/2008



Related to feature:






2.39 003038 / DELETE PAGING COMMAND

Counter ID: 003038 Network element name: DELETE PAGING COMMAND

Version: 2.1 NetAct name: DELETE_PAGING_COMMAND

Description: Number of the delete paging commands. This counter indicates if some group-specificpaging queue becomes so full that an additional paging command cannot be stored to the buffer. Insuch a case the paging command is deleted.

The message reports the total amount of such deleted paging commands during the reporting period.

Updated: When a CCCH_LOAD_INDICATION message is received from the BTS and the pagingcommand is deleted.

See figure CCCH load indication




Operability class:

Related to feature:







18/03/2008


2.40 003039 / BCSU OVERLOAD LOWER LIMIT

Counter ID: 003039 Network element name: BCSU OVERLOAD LOWER LIMIT

Version: 2.1 NetAct name: BCSU_OVERLOAD_LOWER_LIMIT

Description: Number of refused calls, when BCSU overload lower limit occurs. When the overloadlower limit occurs, all calls except emergency, MOC and MTC calls are refused.

Updated: When the call is refused due to BCSU overload lower limit. Each time a newCHANNEL_REQUIRED message comes from the BTS through the Abis interface, a softwareapplication in the BCSU checks the number of free message buffers in the unit. When the lower limit(more than 34 unhandled messages) is exceeded, the causes moc_data, location_update,other_cases and re_establishment will be omitted.

See figure Unsuccessful channel requests due to BCSU overload




Operability class:





2.41 003040 / BCSU OVERLOAD UPPER LIMIT

Counter ID: 003040 Network element name: BCSU OVERLOAD UPPER LIMIT

Version: 2.1 NetAct name: BCSU_OVERLOAD_UPPER_LIMIT

Description: Number of refused calls, when BCSU overload upper limit occurs. When the overloadupper limit occurs, all calls are refused.

Updated: When the call is refused due to BCSU overload upper limit. Each time a newCHANNEL_REQUIRED message comes from the BTS through the Abis interface, a softwareapplication in the BCSU checks the number of free message buffers in the unit. When the upper limit(more than 53 unhandled messages) is exceeded, no causes will trigger channel reservation in theBSC.




DN9813745Issue 10-0 en18/03/2008




Operability class:





2.42 003041 / BCSU OVERLOAD DELETED RACH

Counter ID: 003041 Network element name: BCSU OVERLOAD DELETEDRACH

Version: 2.1 NetAct name: BCSU_OVERLOAD_DELETED_RACH

Description: Number of deleted RACHs on a CCCH when the RACH load is too high and MCMU isprotected against overload.

Updated: When new RACH commands arrive to the CCCH but the maximum number of simultaneousRACH requests have already been sent to the MCMU and therefore there is no free space for anynew RACH requests and the commands are deleted. The maximum number of simultaneous RACHrequests is dynamically changed at BCSU level according to the load of the MCMU. If there are morerequests, the RACHs are deleted and this counter is triggered.





Operability class:




Used from release: S7 Definition updated in release: S11.5

2.43 003042 / TRX DIAGNOSTICS

Counter ID: 003042 Network element name: TRX DIAGNOSTICS


18/03/2008


Version: 2.1 NetAct name: TRX_DIAGNOSTIC

Description: Number of the running times of TRX internal diagnostics.

Updated: When TRX internal diagnostics is started. The base station has requested the blocking ofthe TRX for diagnostics.




Operability class:

Related to feature:

BSS8143: Runtime diagnostics and BTS alarms





2.44 003043 / TRX DIAGNOSTICS FAULT

Counter ID: 003043 Network element name: TRX DIAGNOSTICS FAULT

Version: 2.1 NetAct name: TRX_DIAGNOSTIC_FAULT

Description: Number of times that the TRX internal diagnostics has detected a fault.

Updated: When diagnostics is stopped after fault detection. The BTS has sent a message informingthat the diagnostics has been stopped and that a fault has been detected.




Operability class:

Related to feature:

BSS8143: Runtime diagnostics and BTS alarms





DN9813745Issue 10-0 en18/03/2008



2.45 003044 / SUCC SEIZ SUPPLEM SERV

Counter ID: 003044 Network element name: SUCC SEIZ SUPPLEM SERV

Version: 2.1 NetAct name: SUCC_SEIZ_SUPPLEM_SERV

Description: Number of successful seizures of SDCCHs for supplementary service.

Updated: When an ESTABLISH_INDICATION message with CM service request and service typesupplementary service is received on SDCCH from the BTS.




Operability class:





2.46 003045 / TCH SUPPLEM SERV

Counter ID: 003045 Network element name: TCH SUPPLEM SERV

Version: 2.1 NetAct name: TCH_SUPPLEM_SERV

Description: Number of successful seizures of TCHs for supplementary service in FACCH call setupdue to SDCCH congestion. If FACCH call setup is turned off, the counter value is zero.

Updated: When an ESTABLISH_INDICATION message with CM service request and service typesupplementary service is received on TCH from the BTS.




Operability class:




18/03/2008




2.47 003046 / AVE PCH GB LOAD ON CCCH

Counter ID: 003046 Network element name: AVE PCH GB LOAD ON CCCH

Version: 2.1 NetAct name: AVE_PCH_GB_LOAD_ON_CCCH_SUM

Description: Average paging buffer space on Gb-interface. The counter indicates the remaining spacefor paging commands (CS, PS) and DRX Access Grant. Smaller value means greater load on thePCH.


Updated: When the value of the PCH Gb load is received in a CCCH_LOAD_IND message from theBTS during the measurement period. The new value of the PCH Gb load is added to the previousvalue, and the number of events is increased by one.

When CCCH_LOAD_IND message is received by BSC and GPRS support is configured on CCCH.See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid.





Operability class:

Related to feature:

BSS9006: GPRS Telecom in BCSU and MCMU







DN9813745Issue 10-0 en18/03/2008



Version: 2.1 NetAct name: AVE_PCH_GB_LOAD_ON_CCCH_DEN

Description: Denominator of average PCH Gb load on CCCH.


Updated: See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid




003046: AVE PCH GB LOAD ON CCCH

Operability class:

Related to feature:






2.49 003048 / AVE PAGING GB BUF

Counter ID: 003048 Network element name: AVE PAGING GB BUF

Version: 2.1 NetAct name: AVE_PAGING_GB_BUF_SUM

Description: Average buffer occupancy percentage.

It is used to carry information on the load of the PCH associated with this CCCH timeslot. Thisinformation reports the paging buffer occupancy percentages within the buffer area of approximately15 seconds, in case the GPRS support is configured onto CCCH. The range of this parameter is0...100% with 1% intervals. The occupancy percentage (occupied buffer space vs. maximum space) ofpaging buffer is calculated every fourth 51-multiframe. An average is calculated from these values andreported in CCCH_LOAD_IND message.


Updated: When the value of the average paging Gb buffer load is received in a CCCH_LOAD_INDmessage from the BTS during measurement period. The new value of the average paging Gb bufferload is added to the previous value, and the number of events is increased by one.

When CCCH_LOAD_IND message is received by BSC and GPRS support is configured on CCCH.See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid


18/03/2008



Unit: % Range: 0 - 100 Example values:



Operability class:

Related to feature:








Version: 2.1 NetAct name: AVE_PAGING_GB_BUF_DEN

Description: Denominator of average buffer occupancy percentage.






003048: AVE PAGING GB BUF

Operability class:

Related to feature:




DN9813745Issue 10-0 en18/03/2008





2.51 003050 / MAX PAGING GB BUF

Counter ID: 003050 Network element name: MAX PAGING GB BUF

Version: 2.1 NetAct name: MAX_PAGING_GB_BUF

Description: Maximum buffer occupancy percentage.

It is used to carry information on the load of the PCH associated with this CCCH timeslot. It is thepeak value of all values which are calculated every fourth 51-multiframe during the concernedCCCH_LOAD_IND reporting period. The range of this parameter is 0...100% with 1% intervals.

Updated: When the value of the maximum paging buffer received in a CCCH_LOAD_INDICATIONmessage exceeds the previous value of the paging buffer during the measurement period.

When CCCH_LOAD_IND message is received by BSC and GPRS support is configured on CCCH.See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid




Operability class:

Related to feature:






2.52 003051 / AVE PAGING LOAD AIR

Counter ID: 003051 Network element name: AVE PAGING LOAD AIR

Version: 2.1 NetAct name: AVE_PAGING_LOAD_AIR_SUM


18/03/2008


Description: Average paging load on CCCH indicated by radio block occupancy for paging messages.

Radio Block Occupancy carries information on the Radio interface load in percents of the associatedCCCH timeslot. The radio block occupancy percentage for AGCH messages requiring DRX (occupiedradio blocks vs. all radio blocks during reporting period) is calculated and reported in CCCH_LOAD_IND message.


Updated: When a CCCH_LOAD_INDICATION message is received from the BTS. The averagepaging load value is added to the previous value and the number of events is increased by one.

When CCCH_LOAD_IND message is received by BSC and phase 2 BTS or newer is supported. Seefigure CCCH load indication if GPRS is activated in BTS and other conditions are valid





Operability class:

Related to feature:








Version: 2.1 NetAct name: AVE_PAGING_LOAD_AIR_DEN

Description: Denominator of average radio interference CCCH load radio block occupancy paging.





DN9813745Issue 10-0 en18/03/2008




003051: AVE PAGING LOAD AIR

Operability class:

Related to feature:






2.54 003053 / AVE DRX AGCH LOAD AIR

Counter ID: 003053 Network element name: AVE DRX AGCH LOAD AIR

Version: 2.1 NetAct name: AVE_DRX_AGCH_LOAD_AIR_SUM

Description: Average radio interference CCCH load radio block occupancy DRX AGCH.

It is used to carry information on the Radio interface load of the associated CCCH timeslot. The rangeof this parameter is 0...100% with 1% intervals. The radio block occupancy percentage for AGCHmessages requiring DRX (occupied radio blocks vs. all radio blocks during reporting period) iscalculated and reported in CCCH_LOAD_ IND message.


Updated: When a CCCH_LOAD_INDICATION message is received from the BTS. The average DRXAGCH LOAD AIR value is added to the previous value and the number of events is increased by one.

When CCCH_LOAD_IND message is received by BSC and phase 2 BTS or newer is supported. Seefigure CCCH load indication if GPRS is activated in BTS and other conditions are valid





Operability class:


18/03/2008


Related to feature:








Version: 2.1 NetAct name: AVE_DRX_AGCH_LOAD_AIR_DEN

Description: Denominator of average radio interference CCCH load radio block occupancy DRXAGCH.






003053: AVE DRX AGCH LOAD AIR

Operability class:





2.56 003055 / AVE NON DRX AGCH LOAD AIR

Counter ID: 003055 Network element name: AVE NON DRX AGCH LOAD AIR

DN9813745Issue 10-0 en18/03/2008



Version: 2.1 NetAct name: AVE_NON_DRX_AGCH_LOAD_AIR_SUM

Description: Average radio interference CCCH load radio block occupancy NON-DRX AGCH.

It is used to carry information on the Radio interface load of the associated CCCH timeslot. The rangeof this parameter is 0...100% with 1% intervals. The radio block occupancy percentage for AGCHmessages not requiring DRX (occupied radio blocks vs. all radio blocks during reporting period) iscalculated and reported in CCCH_LOAD_ IND message.


Updated: When a CCCH_LOAD_INDICATION message is received from the BTS. The average NONDRX AGCH LOAD AIR value is added to the previous value and the number of events is increased byone.

When CCCH_LOAD_IND message is received by BSC and phase 2 BTS or the newer is supported.See figure CCCH load indication if GPRS is activated in BTS and other conditions are valid





Operability class:

Related to feature:








Version: 2.1 NetAct name: AVE_NON_DRX_AGCH_LOAD_AIR_DEN

Description: Denominator of average radio interference CCCH load radio block occupancy NON-DRXAGCH.





18/03/2008




003055: AVE NON DRX AGCH LOAD AIR

Operability class:

Related to feature:






2.58 003057 / PS PAGING MSG SENT

Counter ID: 003057 Network element name: PS PAGING MSG SENT

Version: 2.1 NetAct name: PS_PAGING_MSG_SENT

Description: This message is sent from the BSC/PCU to the BTS to request PS paging of a GPRSMS.

Updated: When a PS-PAGING COMMAND message is sent to the BTS. The MS needs to be pagedonly when it is in MM-idle state. A GPRS paging message is sent only to cells that support GPRSservices.

When a PS-PAGING COMMAND message is sent from the BSC to the BTS. See figure PS paging inGPRS




Operability class:

Related to feature:





DN9813745Issue 10-0 en18/03/2008




2.59 003058 / CS PAGING MSG SENT

Counter ID: 003058 Network element name: CS PAGING MSG SENT

Version: 2.1 NetAct name: CS_PAGING_MSG_SENT

Description: This message is sent from BSC/PCU to BTS to request CS paging of a GPRS MS.

Updated: When a CS-PAGING COMMAND is sent to the BTS.

When a CS-PAGING COMMAND message is sent from BSC to the BTS. See figure CS Paging inGPRS




Operability class:

Related to feature:






2.60 003059 / CALL ASSIGN AFTER SMS

Counter ID: 003059 Network element name: CALL ASSIGN AFTER SMS

Version: 2.1 NetAct name: CALL_ASSIGN_AFTER_SMS

Description: Number of calls started directly after an SMS on the already reserved SDCCH.

Updated: When an ASSIGNMENT REQUEST message is received directly after a successful SMS onSDCCH from the MSC.





18/03/2008


Operability class:




Used from release: S10.5 Definition updated in release:

2.61 003060 / SPARE003060

Counter ID: 003060 Network element name: SPARE003060

Version: 2.0 NetAct name: SPARE003060

Description: Spare

Updated:




Operability class:





2.62 003061 / SPARE003061



Description: Spare

Updated:




DN9813745Issue 10-0 en18/03/2008



Operability class:





2.63 003062 / SPARE003062



Description: Spare

Updated:




Operability class:





2.64 003063 / SPARE003063



Description: Spare

Updated:





18/03/2008


Operability class:





2.65 003064 / SUCC MO SMS SDCCH

Counter ID: 003064 Network element name: SUCC MO SMS SDCCH

Version: 2.1 NetAct name: SUCC_MO_SMS_SDCCH

Description: Number of mobile originated SMSs successfully established on an SDCCH.

Counter 003028 is updated together with this counter.

Updated: At the same time as counter 003028 (SUCC SDCCH SMS EST) but only when ESTABLISHINDICATION message for a mobile originated SMS is received on SDCCH from the BTS.




003028: SUCC SDCCH SMS EST

Operability class:

Related to feature:

BSS115168: CS Statistics Improvements





DN9813745Issue 10-0 en18/03/2008



2.66 003065 / UNSUCC MO SMS SDCCH

Counter ID: 003065 Network element name: UNSUCC MO SMS SDCCH

Version: 2.1 NetAct name: UNSUCC_MO_SMS_SDCCH

Description: Number of mobile originated SMSs unsuccessfully established on an SDCCH.

Counter 003029 is updated together with this counter.

Updated: At the same time as counter 003029 (UNSUCC SDCCH SMS EST) but only whenESTABLISH INDICATION message for a mobile originated SMS is received on SDCCH from the BTS.




003029: UNSUCC SDCCH SMS EST

Operability class:

Related to feature:

BSS115168: CS Statistics Improvements






18/03/2008


3 Signalling charts of Resource AccessMeasurement

The following figures show the signalling charts of Resource AccessMeasurement:

DN9813745Issue 10-0 en18/03/2008


Signalling charts of Resource Access Measurement

Figure 1. Basic call without counters.

BSC:MS: BTS: MSC:

PagingPaging commandPaging request

Channel requestChannel required

Channel activation

Immediate assign

SetupSetup

Call proceeding Call proceeding

Assignment requestPhysical context request

Physical context confirm

Channel activation

Channel activation ack

Assignment command

Ua

Sabm Establish indication

Ua

Assignment complete Assignment complete

Rf channel release

Rf channel release ack

Identification requestIdentification request

Identification response Identification response

Encryption command

Paging part

Radio access part on CCCH


Immediate assign command

Sabm Establish indication Paging response

Authentication requestAuthentification request

Authentification response

SDCCH signalling part

DDCH establishment part

TCH seized, FACCH signalling part

Ciphering mode command

Ciphering mode complete

Authentication response

Ciphering mode command

Ciphering mode complete


18/03/2008


Figure 2. Basic call without counters (cont.).

Alert Alert

Connect Connect

Connect ackConnect ack

Release complete

Clear command

Clear complete

Channel release

Deactivate SACCH

Ua

Release indication

Rf channel release

Rf channel release ack

Disconnect Disconnect

ReleaseRelease

Release complete

BSC:MS: BTS: MSC:

Disc

Conversation phase

Release by MS

DN9813745Issue 10-0 en18/03/2008



Figure 3. Basic call with counters.

BTS: MSC:MS: BSC:

PagingPaging command

Paging request

Channel request

Channel required

Channel activation


Immediate assign

SabmEstablish indication

Paging responseUa

Paging part

Paging messages sent to BTS003000


Channel request messagesreceived from BTS

003004


Immediate assignment messagesent to BTS003001


SDCCH signalling part

TCH seized, FACCH signalling part

Conversation phase

Release by MS

Success seizure for MTC003012

or Success seizure for MOC003013

or SDCCH location update003019

or SDCCH call re-establishment003020

or SDCCH emergency call003021

or IMSI detach SDCCH003033


18/03/2008


Figure 4. FACCH call setup due to SDCCH congestion.

BTS:MS: BSC: MSC:

Sabm

Establish indication

Paging response

Ua


Paging part


TCH signalling part

Conversation phase

Release by MS

TCH emergency call003022

orTCH MTC003023

orTCH MOC003024

orTCH call re-establishm.

003025or

IMSI detach TCH003034

DN9813745Issue 10-0 en18/03/2008



Figure 5. Ghost reservation.

Counter 003031 is updated if distance verifying is activated in the resourceallocation feature and the channel request is rejected due to the distancebetween the MS and BTS.

Ghost

Channel required

BSC:MS: MSC:BTS:


Paging part

Rej seiz att due dist

003031

GHOST CCCH reservation

003030

Channel request messages

received from BTS

003004


18/03/2008


Figure 6. Busy AGCH-channel.

Channel required

Channel activation

Channel request

Delete indication

MS: BSC: MSC:BTS:


Paging part



Immediate assignmentmessages sent to BTS

003001

Delete indication messagesreceived from BTS

003005


003004

DN9813745Issue 10-0 en18/03/2008



Figure 7. Unsuccessful channel request.

Figure 8. SMS broadcast.

Channel required

Channel request

BSC:MS: MSC:BTS:


Paging part

Immediate assignment reject


003004

Immediate assignment rejectmessages sent to BTS

003002

BSC:MS: MSC:BTS:

SMS broadcast request




SMS CB request messagessent to the BTS

003003


18/03/2008


Figure 9. Mobile originating SMS on a TCH.

Cp data

Cm serv req

Ua (SAPI = 3)

Sabm (SAPI = 3)


Cp data

Cp ack Cp ack

Cp data Cp data

Cp ackCp ack

Cm serv req

Cm serv ackCm serv ack

BSC:MS: MSC:BTS:

Active call

Successful TCH SMS003026

Active call continuous

DN9813745Issue 10-0 en18/03/2008



Figure 10. Mobile terminating SMS on a TCH.

Cp data

Establish request

Sabm (SAPI = 3)

Ua (SAPI = 3)

Establish confirm

Cp data

Cp ack Cp ack

Cp data Cp data

Cp ackCp ack

BTS: MSC:MS: BSC:

Active call

Active call continuous



18/03/2008


Figure 11. Mobile originating SMS on FACCH.

MS starts SMS by sending SABM with SAPI = 3

SMS release

Cp ack

Cp ack

Cp data

Cp data

Cp ack

Cp ack

Cp data


Sabm (SAPI = 3)

FACCH call setup

Ua (SAPI = 3)

Instead of sending SETUP -message,

Cp data

BSC:MS: MSC:BTS:


DN9813745Issue 10-0 en18/03/2008



Figure 12. Mobile terminating SMS on FACCH.

Establish request

MSC starts SMS by sending CP DATA -message

SMS release

Cp ack

Cp ack

Cp data

Cp data

Cp ack

Cp ack

Cp data

Establish confirm

Ua (SAPI = 3)

FACCH call setup

Sabm (SAPI = 3)


Cp data

BTS: MSC:MS: BSC:



18/03/2008


Figure 13. Mobile originating SMS on an SDCCH.

Cp data

Ua (SAPI = 3)

Sabm (SAPI = 3)


Cp data

Cp ack Cp ack

Cp data Cp data

Cp ackCp ack

BTS: MSC:MS: BSC:


Connection is set up as in normal MOC

S

Resource Access

Documents

nokiasiemens networks

product documentation

paging messages

ind messages

whichthe document

immediate assignment

channel request messages

sms bc request messages