Huawei Test Cases Description for MTN Issue: IRAT-eRAN2.1 Total 30 pages
Huawei Technologies Co., Ltd. Website:http://support.huawei.com
E-MAIL:[email protected]
All Rights Reserved. Address:Bantian, Longgang District, Shenzhen, P. R. China
Postal Code:518129
Huawei Test Cases Description for MTN
Issue: IRAT-eRAN2.1 Total 24 pages
Copyright © Huawei Technologies Co., Ltd. 2004. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.
Trademarks and Permissions
and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
NoticeThe information in this document is subject to change without notice. Every effort has been
made in the preparation of this document to ensure accuracy of the contents, but all
statements, information, and recommendations in this document do not constitute the
warranty of any kind, express or implied.
Huawei Technologies Co., Ltd. provides customers with comprehensive technical support
and service. Please feel free to contact our local office or company headquarters.
Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
Huawei Test Cases Description for MTN Internal use
Table of Contents
T01 IRAT Mobility Test...........................................................................................................................1
T01-01 L2U IRAT............................................................................................................................1
T01-0101 LTE to UMTS cell reselection, LTE has higher cell priority...................................1
T01-0102 LTE to UMTS PS handover based on coverage with measurement.........................4
T01-0103 LTE to UMTS redirection based on coverage with measurement............................8
T01-0104 LTE to UMTS redirection based on only serving cell measurement, UE don't
support UTRAN measurement................................................................................................11
T01-02 L2G IRAT..........................................................................................................................14
T01-0201 LTE to GERAN cell reselection for a PS attached UE in idle mode, LTE has
higher cell priority...................................................................................................................14
T01-0202 LTE to GERAN redirection based on only serving cell measurement, UE don't
support GERAN measurement................................................................................................17
Issue: IRAT Huawei Proprietary and Confidential Page of i
Huawei Test Cases Description for MTN Internal use
IRAT Test Case Description
T01 IRAT Mobility Test
T01-01 L2U IRAT
T01-0101 LTE to UMTS cell reselection, LTE has higher cell priority
Objective
If a UMTS cell’s signal quality is better than the threshold and the serving LTE cell’s signal quality is worse
than the threshold of a UE in idle mode, the UE will be directed to the UMTS cell by cell reselection.
This test case aims to verify that the eNodeB supports inter-RAT reselection for UEs in idle mode when the
UEs move from LTE cells to UMTS cells.
Network Diagram
Lab test scenario:
Field test scenario: field test network
Prerequisites
1. The LTE/EPC system is in normal operation.
2. The LTE cell is activated, and its status is normal.
3. The SGSN and GGSN are in normal operation.
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 1 of 20
Huawei Test Cases Description for MTN Internal use
4. The UMTS cell is activated, and its status is normal.
5. The status of the eNodeB is normal. The status can be checked by choosing Workbench > Main
Topology on the M2000.
6. The following tasks have been created on the M2000:
7. Uu interface tracing (by choosing Monitor > Signaling Trace > Signaling Trace Management > Uu
Interface Trace )
8. S1 interface tracing (by choosing Monitor > Signaling Trace > Signaling Trace Management > S1
Interface Trace )
9. Cell DT tracing (by choosing Monitor > Signaling Trace > Signaling Trace Management > Cell DT
Trace )
10. A TCP/UDP test tool such as Iperf has been installed on the server and client.
11. The network is unloaded.
12. The test UE is ready and located at the center of its serving cell.
13. The UE is subscribed on the HSS as follows:
14. QCI = 9, ARP = 11, UL and DL AMBRs = 150 Mbit/s
15. A UE tracing tool, such as HUAWEI GENEX Probe for HUAWEI terminals or XCAL for Samsung
terminals or QXDM, is ready.
16. Add a neighboring UTRA frequency by running the following MML command:
ADD UTRANNFREQ: LocalCellId=0, UtranDlArfcn=10738, UtranFddTddType=UTRAN_FDD,
UtranUlArfcnCfgInd=NOT_CFG, CellReselPriorityCfgInd=CFG, CellReselPriority=5;
Procedure Expected Result
1. Set information related to cell reselection to
UMTS by running the following MML command:
ADD CELLRESELUTRAN: LocalCellId=0,
SpeedStateSfCfgInd=NOT_CFG;
Operation succeeded.
2. Configure the LTE cell reselection parameter with
higher cell priority than UMTS by running the
following MML command:
MOD CELLRESEL: LocalCellId=0,
CellReselPriority=6;
MOD UTRANNFREQ: LocalCellId=0,
UtranDlArfcn=10738,
CellReselPriorityCfgInd=CFG,
CellReselPriority=5;
3. Set the PS inactivity timer to 10s to increase the
probability of UE state transition to idle mode by
running the following MML command:
MOD RRCCONNSTATETIMER:
UeInactiveTimer=10;
Record the default value of the PS inactivity
timer for post-test restoration.
Operation succeeded.
4. Power on the UE so that it initiates the attach The messages INITIAL UE MSG and the last UL UE
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 2 of 20
Huawei Test Cases Description for MTN Internal use
procedure. MESSAGE (UL NAS TRANS) appear in the S1
tracing result, indicating that the attach procedure is
successful.
The UE camps on the LTE cell.
5. Wait 10s to make the UE in idle mode.The message RRC Connection Release indicates that the UE switches to idle mode.
6. UE moves from LTE cell to UMTS cell. If in the
lab, decrease the power from the LTE cell and
increase the power from the UMTS cell to trigger
reselection to UMTS.
The NAS message Routing Area Update Request in the Initial UE message on the Iu interface indicates that the reselection procedure is successful.
7. Ping 32bytes from UE to FTP server.Ping servie is normal.
8. Disconnect the UE and save the logs.Operation succeeded.
9. Restore the test environment by running the
following MML commands:
RMV UTRANNFREQ: LocalCellId=0,
UtranDlArfcn=10738;
MOD RRCCONNSTATETIMER
Operation succeeded.
Remarks
1. Time required: 1 hour
2. Related specifications: 3GPP TS 36.300, 36.331, 36.413, 24.301, 23.401
3. Message flow:
4.
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 3 of 20
Huawei Test Cases Description for MTN Internal use
T01-0102 LTE to UMTS PS handover based on coverage with measurement
Objective
This test case aims to verify that the eNodeB supports inter-RAT PS handovers due to coverage changes.
Network Diagram
Lab test scenario:
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 4 of 20
Huawei Test Cases Description for MTN Internal use
Field test scenario: field test network
Prerequisites
1. The LTE/EPC system is in normal operation.
2. The UMTS system is in normal operation.
3. The test UE is ready and located at the center of its serving cell.
4. Uu and S1 interface tracing tasks have been created on the M2000 or eNodeB Web LMT, and Iu and Uu
interface tracing tasks have been created on the M2000 or RNC Web LMT.
5. CELL1 is configured in the eNodeB and CELL2 is configured in the RNC. CELL1 and CELL2 have the
same coverage.
6. The UE is subscribed on the HSS as follows:
7. QCI = 9, ARP = 11, UL and DL AMBRs = 150 Mbit/s
8. The UeInactiveTimer parameter is set as follows to keep the UE in connected mode:
MOD RRCCONNSTATETIMER: UeInactiveTimer=0;
9. CELL2 is configured as an inter-RAT neighboring cell of CELL1 in the eNodeB by running the following
MML commands:
ADD UTRANNFREQ: LocalCellId=0, UtranDlArfcn=10738, UtranFddTddType=UTRAN_FDD,
UtranUlArfcnCfgInd=NOT_CFG, CellReselPriorityCfgInd=CFG, CellReselPriority=6;
ADD UTRANEXTERNALCELL: Mcc="460", Mnc="150", UtranCellId=15001, UtranDlArfcn=10738,
UtranUlArfcnCfgInd=NOT_CFG, RncId=1, RacCfgInd=CFG, Rac=0, PScrambCode=150, Lac=1;
ADD UTRANNCELL: LocalCellId=0, Mcc="460", Mnc="150", UtranCellId=15001,
BlindHoPriority=32;
Procedure Expected Result
1. Enable LTE to UMTS PS handover switchby Operation succeeded.
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 5 of 20
Huawei Test Cases Description for MTN Internal use
running the following MML command:
MOD ENODEBALGOSWITCH:
HoModeSwitch=UtranPsHoSwitch-1;
Record the default values of the algorithm
switches for post-test restoration.
2. Query the inter-RAT handover policy group ID of
the UE by running the following command.
LST STANDARDQCI: Qci=QCI9;
---------START--------
%%LST STANDARDQCI: Qci=QCI9;%%
RETCODE = 0 Operation succeeded.
...
QoS Class Indication = QCI 9
InterRAT policy config group ID = 3
...
---------END--------
3. Based on the queried inter-RAT handover policy
group ID, enable PS handover to UTRAN in the
group by running the following MML command:
MOD INTERRATPOLICYCFGGROUP:
InterRatPolicyCfgGroupId=3,
UtranHoCfg=PS_HO-1;
Record the default values of the algorithm
switches for post-test restoration.
Operation succeeded.
4. Power on the UE so that it initiates the attach
procedure.The UE attaches to CELL1.
5. Use FTP tool or Iperf to perform downlink data
transmission.Data is transmitted properly.
6. Enable the UE to leave the LTE cell and
approach the UMTS cell until a handover is triggered.
The UE reports event A2 to the eNodeB. After
receiving the report, the eNodeB delivers the inter-
RAT measurement configuration to the UE. The UE
performs inter-RAT measurements. If the signal
quality of the UMTS cell meets the threshold for
reporting event B1, the UE reports event B1 to the
eNodeB. Then, the eNodeB sends a handover
command to the UE.
The RRC_MOBIL_FROM_EURAN_CMD message in
the LTE Uu interface tracing log and the Handover to
UTRAN Complete in Uu interface and PS Handover
Complete messages in the RNC Iu interface tracing
log indicate that the UE is handed over to the UMTS
cell.
The data transmission in UMTS side is normal.
7. Disconnect the UE and save the logs.Operation succeeded.
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 6 of 20
Huawei Test Cases Description for MTN Internal use
8. Restore the test environment by running the
following MML commands:
RMV UTRANNCELL: LocalCellId=0,
Mcc="460", Mnc="150", UtranCellId=15001;
RMV UTRANEXTERNALCELLPLMN:
UtranCellId=15001, Mcc="460", Mnc="150",
ShareMcc="460", ShareMnc="20";
RMV UTRANEXTERNALCELL: Mcc="460",
Mnc="150", UtranCellId=15001;
RMV UTRANNFREQ: LocalCellId=0,
UtranDlArfcn=10738;
MOD ENODEBALGOSWITCH
MOD RRCCONNSTATETIMER
Operation succeeded.
Remarks
Message flow:
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 7 of 20
UE eNodeB RNC MME SGSN
UE Attach Procedure
Adjust Attenuation (if in lab)
RRC_MEA_RPRT(A2)
RRC_CONN_RECFG(B1)
RAU Procedure
RRC_MEA_RPRT(B1)
S1AP Handover Required
S1AP Handover Command
RRC_ HO_UTRA_CMP
RRC_MOBIL_FROM_EURAN_CMD
Huawei Test Cases Description for MTN Internal use
T01-0103 LTE to UMTS redirection based on coverage with measurement
Objective
This test case aims to verify that the eNodeB supports inter-RAT redirections due to coverage changes.
Network Diagram
Lab test scenario:
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 8 of 20
Huawei Test Cases Description for MTN Internal use
Field test scenario: field test network
Prerequisites
1. The LTE/EPC system is in normal operation.
2. The UMTS system is in normal operation.
3. The test UE is ready and located at the center of its serving cell.
4. The UE is subscribed on the HSS as follows:
5. QCI = 9, ARP = 11, UL and DL AMBRs = 150 Mbit/s
6. Uu and S1 interface tracing tasks have been created on the M2000 or eNodeB Web LMT, and Iu and Uu
interface tracing tasks have been created on the M2000 or RNC Web LMT.
7. CELL1 is configured in the eNodeB and CELL2 is configured in the RNC.
8. The UeInactiveTimer parameter is set as follows to keep the UE in connected mode:
MOD RRCCONNSTATETIMER: UeInactiveTimer=0;
9. CELL2 is configured as an inter-RAT neighboring cell of CELL1 in the eNodeB by running the following
MML commands:
ADD UTRANNFREQ: LocalCellId=0, UtranDlArfcn=10738, UtranFddTddType=UTRAN_FDD,
UtranUlArfcnCfgInd=NOT_CFG, CellReselPriorityCfgInd=CFG, CellReselPriority=6;
ADD UTRANEXTERNALCELL: Mcc="460", Mnc="150", UtranCellId=15001, UtranDlArfcn=10738,
UtranUlArfcnCfgInd=NOT_CFG, RncId=1, RacCfgInd=NOT_CFG, PScrambCode=150, Lac=1;
ADD UTRANNCELL: LocalCellId=0, Mcc="460", Mnc="150", UtranCellId=15001,
BlindHoPriority=16;
Procedure Expected Result
1. On the M2000 or eNodeB Web LMT, query
algorithm switch settings for post-test restoration by Operation succeeded.
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 9 of 20
Huawei Test Cases Description for MTN Internal use
running the following MML commands:
LST ENODEBALGOSWITCH
2. Disable PS handover and redirection to UTRAN
by running the following MML commands:
MOD ENODEBALGOSWITCH:
HoModeSwitch=UtranPsHoSwitch-
0&UtranRedirectSwitch-1;
Operation succeeded.
3. Power on the UE so that it initiates the attach
procedure.
The messages INITIAL UE MSG and the last UL UE
MESSAGE (UL NAS TRANS) appear in the S1
tracing result, indicating that the attach procedure is
successful.
The UE attaches to CELL1.
4. Use FTP tool or Iperf to perform downlink data
transmission.Data is transmitted properly.
5. Enable the UE to leave the LTE cell and
approach the UMTS cell until a redirection is
triggered.
The UE reports event A2 to the eNodeB. After
receiving the report, the eNodeB delivers the inter-
RAT measurement configuration to the UE. The UE
performs inter-RAT measurements. If the signal
quality of the UMTS cell meets the threshold for
reporting event B1, the UE reports event B1 to the
eNodeB. Then, the eNodeB sends a redirection
command to the UE.
The redirected carrierInfo IE in the RRC_CONN_REL
message on the Uu interface indicates that the
redirection is triggered successfully.
The Routing Area Update Request message in the
Initial UE message on the Iu interface indicates that
the redirection procedure is successful.
The data transmission in UMTS side is normal.
6. Disconnect the UE and save the logs.Operation succeeded.
7. Restore the test environment by running the
following MML commands:
RMV UTRANNCELL: LocalCellId=0,
Mcc="460", Mnc="150", UtranCellId=15001;
RMV UTRANEXTERNALCELL: Mcc="460",
Mnc="150", UtranCellId=15001;
RMV UTRANNFREQ: LocalCellId=0,
UtranDlArfcn=10738;
MOD RRCCONNSTATETIMER:
UeInactiveTimer=1800;
Operation succeeded.
Remarks
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 10 of 20
UE eNodeB RNC MME SGSN
UE Attach Procedure
Adjust Attenuation (if in lab)
RRC_MEA_RPRT(A2)
RRC REL
RAU Procedure
RRC Connection Req
RRC Connection Setup
RRC Connection Setup CMP
RRC_CONN_RECFG(B1)
RRC_MEA_RPRT(B1)
Huawei Test Cases Description for MTN Internal use
Message flow:
T01-0104 LTE to UMTS redirection based on only serving cell measurement, UE don't support UTRAN measurement
Objective
If a UE does not support inter-RAT measurement, the eNodeB triggers LTE to UMTS redirection for the UE
only after receiving a measurement report from the UE.
This test case aims to verify that the eNodeB directly triggers LTE to UMTS redirection after receiving an
event A2 report from a UE that does not support inter-RAT measurement.
Network Diagram
Lab test scenario:
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 11 of 20
Huawei Test Cases Description for MTN Internal use
Field test scenario: field test network
Prerequisites
1. The LTE/EPC system is in normal operation.
2. The UMTS system is in normal operation.
3. A TCP/UDP test tool such as Iperf has been installed on the server and client.
4. The test UE is ready and located at the center of its serving cell.
5. Uu and S1 interface tracing tasks have been created on the M2000 or eNodeB Web LMT, and Uu and Iu
interface tracing tasks have been created on the RNC Web LMT.
6. The UE is subscribed on the HSS as follows:
7. QCI = 9, AMBRMAXUL = 50000000, AMBRMAXDL = 100000000
8. CELL1 is configured in the eNodeB and CELL2 is configured in RNC1.
9. CELL2 is configured as a neighboring cell with blind priority of CELL1 in the eNodeB by running the
following MML commands:
ADD UTRANNFREQ: LocalCellId=0, UtranDlArfcn=10738, UtranFddTddType=UTRAN_FDD,
UtranUlArfcnCfgInd=NOT_CFG, CellReselPriorityCfgInd=CFG, CellReselPriority=6;
ADD UTRANEXTERNALCELL: Mcc="460", Mnc="150", UtranCellId=15001, UtranDlArfcn=10738,
UtranUlArfcnCfgInd=NOT_CFG, RncId=1, RacCfgInd=NOT_CFG, PScrambCode=150, Lac=1;
ADD UTRANNCELL: LocalCellId=0, Mcc="460", Mnc="150", UtranCellId=15001,
BlindHoPriority=16;
Procedure Expected Result
1. On the M2000 or eNodeB Web LMT, query
algorithm switch settings for post-test restoration by
running the following MML commands:
Operation succeeded.
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 12 of 20
Huawei Test Cases Description for MTN Internal use
LST ENODEBALGOSWITCH
2. Disable PS handover and enable LTE to UMTS
redirection by running the following MML commands:
MOD ENODEBALGOSWITCH:
HoModeSwitch=UtranPsHoSwitch-
0&UtranRedirectSwitch-1;
Operation succeeded.
3. Power on the UE so that it initiates the attach
procedure.
The messages INITIAL UE MSG and the last UL UE
MESSAGE (UL NAS TRANS) in S1 interface
indicate the success of the attach procedure.
The UE attaches to CELL1.
4. Use FTP tool or Iperf to perform downlink data
transmission.Data is transmitted properly.
5. UE moves from LTE cell to UMTS cell. If in the
lab, adjust the attenuators to decrease the signal
quality of CELL1 and increase that of CELL2 to
trigger LTE to UMTS redirection.
The RRC_MEA_RPRT message with A2 event
report ID sent from the UE to the eNodeB on the Uu
interface indicates that the change of coverage has
triggered measurement of the serving cell.
The redirected carrierInfo IE in the RRC_CONN_REL
message on the Uu interface indicates that the
redirection is triggered successfully.
The Routing Area Update Request message in the
Initial UE message on the Iu interface indicates that
the redirection procedure is successful.
The data transmission in UMTS side is normal.
6. Disconnect the UE and save the logs.Operation succeeded.
7. Restore the test environment by running the
following MML commands:
RMV UTRANNCELL: LocalCellId=0,
Mcc="460", Mnc="150", UtranCellId=15001;
RMV UTRANEXTERNALCELL: Mcc="460",
Mnc="150", UtranCellId=15001;
RMV UTRANNFREQ: LocalCellId=0,
UtranDlArfcn=10738;
Operation succeeded.
Remarks
1. Time required: 0.5 hours
2. Message flow:
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 13 of 20
UE eNodeB RNC MME SGSN
UE Attach Procedure
Adjust Attenuation (if in lab)
RRC_MEA_RPRT(A2)
RRC REL
RAU Procedure
RRC Connection Req
RRC Connection Setup
RRC Connection Setup CMP
Huawei Test Cases Description for MTN Internal use
3. Related specifications: 3GPP TS 36.300, 36.331, 36.413, 24.301, 23.401
T01-02 L2G IRAT
T01-0201 LTE to GERAN cell reselection for a PS attached UE in idle mode, LTE has higher cell priority
Objective
LTE to GERAN cell reselection is classified into two types: reselection to a higher-priority cell and reselection
to a lower-priority cell. In most cases, an LTE cell is assigned a higher priority than a GERAN cell.
This test case aims to verify that when a GERAN cell has better signal quality than an LTE cell, a UE in idle
mode is directed to the GERAN cell by cell reselection even if the LTE cell is assigned a higher cell-
reselection priority than the GERAN cell.
Network Diagram
Lab test scenario:
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 14 of 20
Huawei Test Cases Description for MTN Internal use
Field test scenario: field test network
Prerequisites
1. The LTE/EPC system is in normal operation.
2. The LTE cell is activated, and its status is normal.
3. The SGSN and GGSN are in normal operation.
4. The GERAN cell is activated, and its status is normal.
5. The status of the eNodeB is normal. The status can be checked by choosing Workbench > Main
Topology on the M2000.
6. The following tasks have been created on the M2000:
7. Uu interface tracing (by choosing Monitor > Signaling Trace > Signaling Trace Management > Uu
Interface Trace )
8. S1 interface tracing (by choosing Monitor > Signaling Trace > Signaling Trace Management > S1
Interface Trace )
9. Cell DT tracing (by choosing Monitor > Signaling Trace > Signaling Trace Management > Cell DT
Trace )
10. A TCP/UDP test tool such as Iperf has been installed on the server and client.
11. The network is unloaded.
12. The test UE is ready and located at the center of its serving cell.
13. The UE is subscribed on the HSS as follows:
14. QCI = 9, ARP = 11, UL and DL AMBRs = 150 Mbit/s
15. A UE tracing tool, such as HUAWEI GENEX Probe for HUAWEI terminals or XCAL for Samsung
terminals or QXDM, is ready.
16. The GERAN cell is configured as a neighboring cell of the LTE cell in the eNodeB by running the
following MML command:
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 15 of 20
Huawei Test Cases Description for MTN Internal use
ADD GERANNFREQGROUP: LocalCellId=0, BcchGroupId=0, GeranVersion=EDGE,
StartingArfcn=800, BandIndicator=GSM_dcs1800, CellReselPriorityCfgInd=CFG,
CellReselPriority=6, PmaxGeranCfgInd=NOT_CFG;
Procedure Expected Result
1. Set information about cell reselection to GERAN
for the LTE cell by running the following MML
command:
ADD CELLRESELGERAN: LocalCellId=0,
SpeedStateSfCfgInd=NOT_CFG;
Operation succeeded.
2. Configure the LTE cell reselection parameter with
higher cell priority than UMTS by running the
following MML command:
MOD CELLRESEL: LocalCellId=0,
CellReselPriority=6;
MOD GERANNFREQGROUP: LocalCellId=0,
BcchGroupId=0,
CellReselPriorityCfgInd=CFG,
CellReselPriority=5;
3. Set the PS inactivity timer to 10s to increase the
probability of UE state transition to idle mode by
running the following MML command:
MOD RRCCONNSTATETIMER:
UeInactiveTimer=10;
Record the default value of the PS inactivity
timer for post-test restoration.
Operation succeeded.
4. Power on the UE so that it initiates the attach
procedure.
The messages INITIAL UE MSG and the last UL UE
MESSAGE (UL NAS TRANS) on the S1 interface
indicate that the attach procedure is successful.
The UE camps on the LTE cell.
5. UE moves from LTE cell to GERAN cell. If in the
lab, decrease the power from the LTE cell and
increase the power from the GERAN cell to trigger
reselection to the GERAN cell.
The Routing Area Update Request message in the Initial UE message on the Iu interface indicates that the reselection procedure is successful.
6. Ping 32bytes from UE to FTP server.Ping servie is normal.
7. Disconnect the UE and save the logs.Operation succeeded.
8. Restore the test environment by running the
following MML commands:
RMV CELLRESELGERAN: LocalCellId=0;
MOD RRCCONNSTATETIMER
Operation succeeded.
Remarks
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 16 of 20
Huawei Test Cases Description for MTN Internal use
1. Time required: 1 hour
2. Related specifications: 3GPP TS 36.300, 36.331, 36.413, 24.301, 23.401
3. Message flow:
4.
T01-0202 LTE to GERAN redirection based on only serving cell measurement, UE don't support GERAN measurement
Objective
This test case aims to verify that the eNodeB supports inter-RAT redirection to GERAN for UEs in connected
mode based on coverage.
Network Diagram
Lab test scenario:
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 17 of 20
Huawei Test Cases Description for MTN Internal use
Field test scenario: field test network
Prerequisites
1. The LTE/EPC system is in normal operation.
2. The GERAN system is in normal operation.
3. The test UE is ready and located at the center of its serving cell.
4. Uu and S1 interface tracing tasks have been created on the M2000 or eNodeB Web LMT, and A and Gb
interface tracing tasks have been created on the BSC Web LMT.
5. The UE is subscribed on the HSS as follows:
6. QCI = 9, AMBRMAXUL = 50000000, AMBRMAXDL = 100000000
7. CELL1 is configured in the eNodeB and CELL2 is configured in the BSC.
8. The UeInactiveTimer parameter is set as follows to keep the UE in connected mode:
MOD RRCCONNSTATETIMER: UeInactiveTimer=0;
9. CELL2 is configured as an inter-RAT neighboring cell with blind handover priority of CELL1 in the eNodeB
by running the following MML commands:
ADD GERANNFREQGROUP: LocalCellId=0, BcchGroupId=0, GeranVersion=EDGE,
StartingArfcn=800, BandIndicator=GSM_dcs1800, CellReselPriorityCfgInd= NOT_CFG,
PmaxGeranCfgInd=NOT_CFG;
ADD GERANEXTERNALCELL: Mcc="460", Mnc="150", GeranCellId=121, Lac=57345,
RacCfgInd=NOT_CFG, BandIndicator=GSM_dcs1800, GeranArfcn=800, NetworkColourCode=0,
BaseStationColourCode=0;
ADD GERANNCELL: LocalCellId=0, Mcc="460", Mnc="150", Lac=57345, GeranCellId=121,
BlindHoPriority=30;
10. UE don't support GERAN measurement.
Procedure Expected Result
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 18 of 20
Huawei Test Cases Description for MTN Internal use
1. Enable LTE to GERAN redirection and disable
LTE to GERAN PS handover for the eNodeB by
running the following MML commands:
MOD ENODEBALGOSWITCH:
HoModeSwitch=GeranPsHoSwitch-
0&GeranRedirectSwitch-1;
Operation succeeded.
2. Power on the UE so that it initiates the attach
procedure.
The messages INITIAL UE MSG and the last UL UE
MESSAGE (UL NAS TRANS) appear in the S1
tracing result, indicating that the attach procedure is
successful.
The UE camps on CELL1.
3. Use FTP tool or Iperf to perform downlink data
transmission.Data is transmitted properly.
4. UE moves from LTE cell to GERAN cell. If in the
lab, decrease the LTE signal quality and raise the
GERAN signal quality to trigger a redirection from
LTE to GERAN.
If the signal quality of the LTE cell deteriorates and
meets the threshold for reporting event A2, the UE
reports event A2 to the eNodeB. After receiving the
report, eNodeB sends an RRC CONNECTION
RELEASE message to the UE.
The RRC CONNECTION RELEASE message with
"redirected CarrierInfo" on the Uu interface indicates
the UE redirection from the LTE cell to the GERAN
cell.
The Routing Area Update Request message appears
in the Gb tracing log, indicating that the redirection
procedure is successful.
The data transmission in GERAN side is normal.
5. Disconnect the UE and save the logs.Operation succeeded.
6. Restore the test environment by running the
following MML commands:
RMV GERANNCELL: LocalCellId=0,
Mcc="460", Mnc="150", Lac=57345,
GeranCellId=121;
RMV GERANEXTERNALCELL: Mcc="460",
Mnc="150", GeranCellId=121, Lac=57345;
RMV GERANNFREQGROUP: LocalCellId=0,
BcchGroupId=0;
MOD RRCCONNSTATETIMER:
UeInactiveTimer=1800;
Operation succeeded.
Remarks
1. Time required: 1 hour
2. Related specifications: 3GPP TS 36.300, 36.331, 36.413, 24.301, 23.401
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 19 of 20
UE eNodeB BSC MME SGSN
UE Attach Procedure
Adjust Attenuation (if in lab)
RRC_MEA_RPRT(A2)
RRC_CONN_REL
RAU Procedure
Channel request
Immediate Assignment
Packet Downlink Assignment
Huawei Test Cases Description for MTN Internal use
3. Message flow:
4.
Issue: IRAT-eRAN2.1 Huawei Proprietary and Confidential Page 20 of 20