12.4.3 Periodic routing area updating
34.123-13GPPPart 1: Protocol conformance specificationRelease 15TSUser Equipment (UE) conformance specification
12.4.3.1 Periodic routing area updating / accepted
12.4.3.1.1 Definition
12.4.3.1.2 Conformance requirement
The User Equipment shall perform a periodic routing area update procedure after a T3312 timeout.
Reference
3GPP TS 24.008 clauses 4.7.2.2 and 4.7.5.1.
12.4.3.1.3 Test purpose
To test the behaviour of the UE with respect to the periodic routing area updating procedure.
12.4.3.1.4 Method of test
Initial condition
System Simulator:
One cell operating in network operation mode II (in case of UE operation mode A).
The SIB1 IE "CN domain specific NAS system information", for the CS Domain, is set to value "00 00" (T3212 value is set to 0 and ATT flag is set to FALSE).
User Equipment:
The UE has a valid P-TMSI-1 and RAI-1.
The UE has been registered in the CS domain.
Related ICS/IXIT statements
Support of PS service Yes/No
UE operation mode C Yes/No
UE operation mode A Yes/No
USIM removal possible without powering down Yes/No
Switch off on button Yes/No
Automatic PS attach procedure at switch on or power on Yes/No
Test procedure
The UE initiates a PS attach procedure with identity P-TMSI. The SS reallocates the P-TMSI and returns ATTACH ACCEPT message with a new P-TMSI and timer T3312. The UE acknowledge the new P-TMSI by sending ATTACH COMPLETE message. A routing area updating procedure is performed at T3312 timeout.
T3312; set to 6 minutes.
Expected Sequence
|
Step |
Direction |
Message |
Comments |
|
|
UE |
SS |
|||
|
1 |
SS |
The UE is set in UE operation mode C (see ICS). If UE operation mode C not supported, goto step 11. |
||
|
2 |
UE |
The UE is powered up or switched on and initiates an attach (see ICS). |
||
|
2a |
SS |
SS checks that the IE "Establishment cause" in the received RRC CONNECTION REQUEST message is set to "Registration". |
||
|
3 |
-> |
ATTACH REQUEST |
Attach type = ‘GPRS attach’ Mobile identity = P-TMSI-1 Old Routing area identity = RAI-1 |
|
|
3a |
<- |
AUTHENTICATION AND CIPHERING REQUEST |
||
|
3b |
-> |
AUTHENTICATION AND CIPHERING RESPONSE |
||
|
3c |
SS |
The SS starts integrity protection. |
||
|
4 |
<- |
ATTACH ACCEPT |
Attach result = ‘GPRS only attached’ Allocated P-TMSI = P-TMSI-2 P-TMSI Signature = P-TMSI-2 signature Routing area identity = RAI-1 T3312 = 6 minutes |
|
|
5 |
-> |
ATTACH COMPLETE |
||
|
5a |
SS |
The SS releases the RRC connection. |
||
|
5b |
SS |
SS checks that the IE "Establishment cause" in the received RRC CONNECTION REQUEST message is set to "Registration". |
||
|
6 |
-> |
ROUTING AREA UPDATE REQUEST |
Update type = ‘Periodic updating’ Old P-TMSI signature=P-TMSI-2 signature Old Routing area identity = RAI-1 |
|
|
7 |
SS |
The SS verifies that the time between the attach and the periodic RA updating is T3312 |
||
|
7a |
SS |
The SS starts integrity protection. |
||
|
8 |
<- |
ROUTING AREA UPDATE ACCEPT |
No new mobile identity assigned. P-TMSI not included. Update result = ‘RA updated’ Routing area identity = RAI-1 |
|
|
8a |
SS |
The SS releases the RRC connection. |
||
|
9 |
Void |
|||
|
9a |
Void |
|||
|
10 |
Void |
|||
|
10a |
Void |
|||
|
11 |
The SS is set in network operation mode II. |
|||
|
12 |
UE |
The UE is set in UE operation mode A(see ICS) and the test is repeated from step 3 to step 10. |
||
Specific message contents
None.
12.4.3.1.5 Test requirements
At step3, when the UE is powered up or switched on, UE shall:
– initiate the PS attach procedure with the information elements specified in the above Expected Sequence.
At step6, when the timer T3312 is expired, UE shall:
– initiate the routing area updating procedure with Update type = ‘Periodic updating’.
12.4.3.2 Periodic routing area updating / accepted / T3312 default value
12.4.3.2.1 Definition
12.4.3.2.2 Conformance requirement
The User Equipment shall perform a periodic routing area update procedure after a T3312 timeout.
Reference
3GPP TS 24.008 clauses 4.7.2.2 and 4.7.5.2.
12.4.3.2.3 Test purpose
To test the behaviour of the UE with respect to the periodic routing area updating procedure.
12.4.3.2.4 Method of test
Initial condition
System Simulator:
One cell operating in network operation mode I.
User Equipment:
The UE has a valid P-TMSI-1 and RAI-1.
Related ICS/IXIT statements
Support of PS service Yes/No
UE operation mode A Yes/No
Switch off on button Yes/No
Automatic PS attach procedure at switch on or power on Yes/No
Test procedure
The UE initiates a combined PS attach procedure. The SS reallocates the P-TMSI and returns ATTACH ACCEPT message with a new P-TMSI and timer T3312. The UE acknowledge the new P-TMSI by sending ATTACH COMPLETE message. After 54 minutes, a periodic routing area updating procedure is initiated by the UE.
T3312; default value 54 minutes.
Expected Sequence
|
Step |
Direction |
Message |
Comments |
|
|
UE |
SS |
|||
|
1 |
UE |
The UE is powered up or switched on and initiates an attach (see ICS). |
||
|
2 |
-> |
ATTACH REQUEST |
Attach type = ‘Combined GPRS/IMSI attach’ Mobile identity = P-TMSI-1 Old Routing area identity = RAI-1 |
|
|
2a |
<- |
AUTHENTICATION AND CIPHERING REQUEST |
||
|
2b |
-> |
AUTHENTICATION AND CIPHERING RESPONSE |
||
|
2c |
SS |
The SS starts integrity protection. |
||
|
3 |
<- |
ATTACH ACCEPT |
Attach result = ‘Combined GPRS/IMSI attached’ Allocated P-TMSI = P-TMSI-2 P-TMSI Signature = P-TMSI-2 signature Routing area identity = RAI-1 T3312 = 54 min |
|
|
4 |
-> |
ATTACH COMPLETE |
||
|
5 |
-> |
ROUTING AREA UPDATE REQUEST |
Update type = ‘Periodic updating’ Old P-TMSI signature=P-TMSI-2 signature Old Routing area identity = RAI-1 |
|
|
6 |
SS |
The SS verifies that the time between the attach request and the periodic RA updating is T3312 |
||
|
7 |
<- |
ROUTING AREA UPDATE ACCEPT |
No new mobile identity assigned. P-TMSI and TMSI not included. Update result = ‘RA updated’ Routing area identity = RAI-1 |
|
Specific message contents
None.
12.4.3.2.5 Test requirements
At step3, when the UE is powered up or switched on, UE shall:
– initiate the PS attach procedure with the information elements specified in the above Expected Sequence.
At step5, when the timer T3312 is expired, UE shall:
– initiate the routing area updating procedure with Update type = ‘Periodic updating’.
12.4.3.2a Periodic routing area updating / accepted / per-device timer
12.4.3.2a.1 Definition
12.4.3.2a.2 Conformance requirement
Periodic routing area updating is used to periodically notify the availability of the MS to the network. The procedure is controlled in the MS by the periodic RA update timer, T3312. The value of timer T3312 is sent by the network to the MS in the messages ATTACH ACCEPT and ROUTING AREA UPDATE ACCEPT.
The User Equipment shall perform a periodic routing area update procedure after a T3312 timeout. Reference.
3GPP TS 24.008 clauses 4.7.2.2 and 4.7.5.1.
12.4.3.2a.3 Test purpose
To verify that the UE uses the per-device timer value for Periodic Routing Area Update received in an Attach Accept or RAU Accept message
12.4.3.2a.4 Method of test
Initial condition
System Simulator:
One cell operating in network operation mode II (in case of UE operation mode A).
The SIB1 IE "CN domain specific NAS system information", for the CS Domain, is set to value "00 00" (T3212 value is set to 0 and ATT flag is set to FALSE).
User Equipment:
The UE has a valid P-TMSI-1 and RAI-1.
If the UE is in UE operation mode A, then the UE has been registered in the CS domain.
The UE is equipped with a USIM containing default values except for those listed below.
|
USIM field |
Value |
|
EFUST |
Service 96 is supported. |
|
EFNASCONFIG |
“NAS_SignallingPriority is set to “NAS signalling low priority” as defined in TS 24.368, clause 5.3. |
|
EFNASCONFIG |
“ExtendedAccessBarring is set to extended access barring is applied for the UE” as defined in TS 24.368, clause 5.8 |
Related ICS/IXIT statements
Support of PS service Yes/No
UE operation mode C Yes/No
UE operation mode A Yes/No
USIM removal possible without powering down Yes/No
Switch off on button Yes/No
Automatic PS attach procedure at switch on or power on Yes/No
Test procedure
The UE initiates a PS attach procedure with identity P-TMSI. The SS reallocates the P-TMSI and returns ATTACH ACCEPT message with a new P-TMSI and timer the extended per-device T3312 timer parameter with a value of 6 minutes. The UE acknowledge the new P-TMSI by sending ATTACH COMPLETE message. A routing area updating procedure is performed at T3312 timeout.
T3312; set to 4 minutes.
Expected Sequence
|
Step |
Direction |
Message |
Comments |
|
|
UE |
SS |
|||
|
1 |
SS |
The UE is set in UE operation mode C (see ICS). If UE operation mode C not supported, goto step 17. |
||
|
2 |
UE |
The UE is powered up or switched on and initiates an attach (see ICS). |
||
|
3 |
SS |
SS checks that the IE "Establishment cause" in the received RRC CONNECTION REQUEST message is set to " delayTolerantAccess". |
||
|
4 |
–> |
ATTACH REQUEST |
Attach type = ‘GPRS attach’ Mobile identity = P-TMSI-1 Old Routing area identity = RAI-1 “MS network feature support”: 1 (MS supports the extended periodic timer in this domain) |
|
|
5 |
<– |
AUTHENTICATION AND CIPHERING REQUEST |
||
|
6 |
–> |
AUTHENTICATION AND CIPHERING RESPONSE |
||
|
7 |
SS |
The SS starts integrity protection. |
||
|
8 |
<– |
ATTACH ACCEPT |
Attach result = ‘GPRS only attached’ Allocated P-TMSI = P-TMSI-2 P-TMSI Signature = P-TMSI-2 signature Routing area identity = RAI-1 Periodic RA update timer = 4 minutes T3312 extended value = 6 min |
|
|
9 |
–> |
ATTACH COMPLETE |
||
|
10 |
SS |
The SS releases the RRC connection. |
||
|
11 |
SS |
SS checks that the IE "Establishment cause" in the received RRC CONNECTION REQUEST message is set to " delayTolerantAccess". |
||
|
12 |
–> |
ROUTING AREA UPDATE REQUEST |
Update type = ‘Periodic updating’ Old P-TMSI signature=P-TMSI-2 signature Old Routing area identity = RAI-1 |
|
|
13 |
SS |
The SS verifies that the time between the attach and the periodic RA updating is 6 minutes |
||
|
14 |
SS |
The SS starts integrity protection. |
||
|
15 |
<- |
ROUTING AREA UPDATE ACCEPT |
No new mobile identity assigned. P-TMSI not included. Update result = ‘RA updated’ Routing area identity = RAI-1 |
|
|
16 |
SS |
The SS releases the RRC connection. |
||
|
17 |
The SS is set in network operation mode II. |
|||
|
18 |
UE |
The UE is set in UE operation mode A(see ICS) and the test is repeated from step 2 to step 16. |
||
Specific message contents
None.
12.4.3.2a.5 Test requirements
At step 4, when the UE is powered up or switched on, UE shall:
– initiate the PS attach procedure with the information elements specified in the above Expected Sequence.
At step 12, when the timer T3312 is expired, UE shall:
– initiate the routing area updating procedure with Update type = ‘Periodic updating’.
12.4.3.2b Periodic routing area updating / accepted / PSM / T3312 Extended Value
12.4.3.2b.1 Definition
Void
12.4.3.2b.2 Conformance requirement
An MS supporting PSM may request the network to assign a value for T3324 by including a requested timer value in:
– the ATTACH REQUEST or ROUTING AREA UPDATE REQUEST message (in A/Gb mode and Iu mode ); or
– the ATTACH REQUEST or TRACKING AREA UPDATE REQUEST message (in S1 mode).
The value of timer T3324 can be sent by the network to the MS in:
– the ATTACH ACCEPT or ROUTING AREA UPDATE ACCEPT message (in A/Gb mode and Iu mode ); and
– the ATTACH ACCEPT or TRACKING AREA UPDATE ACCEPT message (in S1 mode).
…
The network accepts the use of PSM by providing a specific value for timer T3324 when accepting the attach or routing area updating procedure. The MS may use PSM only if the network has provided the T3324 value IE during the last attach or routing area updating procedure with a value different from "deactivated".
…
Periodic routing area updating is used to periodically notify the availability of the MS to the network. The value of the update type IE in the ROUTING AREA UPDATE REQUEST message shall indicate "periodic updating". The procedure is controlled in the MS by timer T3312. When timer T3312 expires, the periodic routing area updating procedure is started. Start and reset of timer T3312 is described in subclause 4.7.2.2.
The normal routing area updating procedure is initiated:
– when the MS detects a change of the routing area in state GMM-REGISTERED;
– when the MS determines that GPRS resumption shall be performed;
– when the MS needs to update the network with the new MS Radio Access Capability IE;
– when the MS needs to update the network with the new DRX parameter IE;
– in Iu mode, to re-synchronize the PMM mode of MS and network after RRC connection release with cause "Directed signalling connection re-establishment", see subclause 4.7.2.5;
– in Iu mode, to re-synchronize the PMM mode of MS and network after inter-system change not due to PS handover from PMM-CONNECTED mode in Iu mode to A/Gb mode or S1 mode, if the MS performs an inter – system change back to Iu mode without sending a ROUTING AREA UPDATE REQUEST message while in A/Gb mode or a TRACKING AREA UPDATE REQUEST message while in S1 mode;
– in Iu mode and A/Gb mode, after intersystem change from S1 mode, and the GMM receives an indication of "RRC connection failure" from lower layers due to lower layer failure while in S1 mode. In this case, if the TIN indicates "RAT-related TMSI", the MS shall set the TIN to "GUTI" before initiating the routing area updating procedure;
– in A/Gb mode, after intersystem change from S1 mode if the TIN indicates "RAT-related TMSI", but the MS is required to perform routing area updating for IMS voice termination as specified in annex P.4;
– when the MS enters GMM-REGISTERED.NORMAL-SERVICE and the TIN indicates "GUTI";
– when the MS has selected a CSG cell whose CSG identity and associated PLMN identity are not included in the Allowed CSG list; or in the Operator CSG list;
– when the MS supports SRVCC and changes the mobile station classmark 2, mobile station classmark 3 or the supported codecs;
– when the MS changes the MS network capability information;
– when the UE’s usage setting or the voice domain preference for E-UTRAN change in the MS;
– when the MS activates mobility management for IMS voice termination as specified in annex P.2 and the TIN indicates "RAT-related TMSI";
– upon reception of a paging indication, using P-TMSI, even if the timer T3346 is running and the MS is in state GMM-REGISTERED.ATTEMPTING-TO-UPDATE;
– in A/Gb mode, after intersystem change from S1 mode via cell change order procedure not due to CS fallback, if the TIN indicates "RAT-related TMSI"; in this case the MS shall set the TIN to "GUTI" before initiating the routing area updating procedure;
– in A/Gb mode, after Inter RAT handover from S1 mode or Iu mode;
– when the UE needs to request the use of PSM or needs to stop the use of PSM; or
– when a change in the PSM usage conditions at the MS requires a different timer T3312 value or different timer T3324 value.
NOTE: A change in the PSM usage conditions at the MS can include e.g. a change in the MS configuration, a change in requirements from upper layers or the battery running low at the MS.
…
If the MS supports PSM and requests the use of PSM, the MS shall include the T3324 value IE with a requested timer value in the ROUTING AREA UPDATE REQUEST message. When the MS includes the T3324 value IE and the MS indicates support for extended periodic timer value in the MS network feature support IE, it may also include the T3312 extended value IE to request a particular T3312 value to be allocated.
Reference
3GPP TS 24.008 clause 4.7.2.8, 4.7.2.9, 4.7.5.1
12.4.3.2b.3 Test purpose
1. To verify that the UE indicates PSM by providing a T3324 value IE during the RAU procedure
2. To verify that an UE accepts the value for timer T3324 provided by the network
3. To verify that the UE indicates support for the extended periodic timer value in the MS network feature support IE and request a particular, extended, value for the T3312 timer
4. To verify that the UE use the Timer T3312 extended value
12.4.3.2b.4 Method of test
Initial condition
System Simulator:
One cell operating in network operation mode II.
The SIB1 IE "CN domain specific NAS system information", for the CS Domain, is set to value "00 00" (T3212 value is set to 0 and ATT flag is set to FALSE to prevent repeated CS domain registration and/or IMSI Detach by UEs in operation mode A).
User Equipment:
The UE has a valid P-TMSI-1 and RAI-1. MS is Idle Updated on cell A.
Related ICS/IXIT statements
Support of PS service Yes/No
UE operation mode A Yes/No
UE operation mode C Yes/No
Switch off on button Yes/No
Automatic PS attach procedure at switch on or power on Yes/No
Support of Power Saving Mode Yes/No
Test procedure
1) The UE sends a ROUTING AREA UPDATE REQUEST message indicating activation of Power Save Mode by including the T3324 timer set to 2 minutes. The UE also indicated support for the extended periodic timer and indicates requested value for timer T3312 of 4 minutes. The SS acknowledge the PSM request by including the T3324 timer set to 2 minutes and the T3312 set to 4 minutes in the ROUTING AREA UPDATE ACCEPT message.
2) When timer T3312 expires the UE initiates a periodic routing area updating procedure.
Expected Sequence
|
Step |
Direction |
Message |
Comments |
|
|---|---|---|---|---|
|
UE |
SS |
|||
|
1 |
UE |
The UE is set to attach to the PS services only (see ICS). If this is not supported by the UE, go to step 19. |
||
|
2 |
UE |
The UE is powered up or switched on and initiates an attach (see ICS). |
||
|
3 |
UE |
Registration on CS |
This step is applied only for UE in UE operation mode A. See TS 34.108 SS allocates Mobile identity = TMSI-1. |
|
|
4 |
-> |
ATTACH REQUEST |
Attach type = ‘GPRS attach’ Mobile identity =P-TMSI-1 Old Routing area identity = RAI-1 |
|
|
5 |
<- |
AUTHENTICATION AND CIPHERING REQUEST |
||
|
6 |
-> |
AUTHENTICATION AND CIPHERING RESPONSE |
||
|
7 |
SS |
The SS starts integrity protection. |
||
|
8 |
<- |
ATTACH ACCEPT |
Attach result = ‘GPRS only attached’ Allocated P-TMSI = P-TMSI-2 P-TMSI Signature = P-TMSI-2 signature Routing area identity = RAI-1 |
|
|
9 |
-> |
ATTACH COMPLETE |
||
|
10 |
The UE requests PSM by MMI or by AT command. |
|||
|
11 |
-> |
ROUTING AREA UPDATE REQUEST |
Update type = ‘RA updating’ Old P-TMSI signature=P-TMSI-2 signature Old Routing area identity T3324 value = 2 minutes “MS network feature support”: 1 (MS supports the extended periodic timer in this domain) T3312 extended value = 4 min |
|
|
12 |
<- |
ROUTING AREA UPDATE ACCEPT |
Update result = ‘RA updated’ No new mobile identity assigned. P-TMSI not included. Routing area identity = RAI-1 T3324 value = 2 minutes T3312 extended value = 4 minutes |
|
|
13 |
-> |
ROUTING AREA UPDATE COMPLETE |
||
|
14 |
-> |
ROUTING AREA UPDATE REQUEST |
Update type = ‘Periodic updating’ Old P-TMSI signature=P-TMSI-2 signature Old Routing area identity = RAI-1 |
|
|
15 |
SS |
The SS verifies that the time between the last RAU and the periodic RA updating is the T3312 extended value |
||
|
16 |
SS |
The SS starts integrity protection. |
||
|
17 |
<- |
ROUTING AREA UPDATE ACCEPT |
No new mobile identity assigned. P-TMSI not included. Update result = ‘RA updated’ P-TMSI-3 signature Routing area identity = RAI-1 |
|
|
18 |
SS |
The SS releases the RRC connection. |
||
|
19 |
UE |
The UE is set to attach to both the PS and non-PS services (see ICS) and the test is repeated from step 2 to step 18. |
||
Specific message contents
None.
12.4.3.2b.5 Test requirements
At step 11 UE shall include the following IEs in the ROUTING AREA UPDATE REQUEST:
T3324 IE set to 2 minutes.
“MS network feature support”: 1 (MS supports the extended periodic timer in this domain).
T3312 extended value = 4 min
At step 14 The UE shall send the ROUTING AREA UPDATE REQUEST when the T3312 extended value has expired.
12.4.3.3 Periodic routing area updating / no cell available / network mode I
12.4.3.3.1 Definition
12.4.3.3.2 Conformance requirement
If the UE is both IMSI attached for PS and non-PS services, and if the UE lost coverage of the registered PLMN and timer T3312 expires; if the UE returns to coverage in a cell that supports PS and the network is in network operation mode I, then the UE shall perform a combined routing area update procedure indicating ‘combined RA/LA updating with IMSI attach’.
Reference
3GPP TS 24.008 clauses 4.7.2.2 and 4.7.5.1.
12.4.3.3.3 Test purpose
To test the behaviour of the UE with respect to the periodic routing area updating procedure.
12.4.3.3.4 Method of test
Initial condition
System Simulator:
Two cells, cell A in MCC1/MNC1/LAC1/RAC1 (RAI-1), cell B in MCC1/MNC1/LAC1/RAC2 (RAI-4).
Cell A is operating in network operation mode II and cell B is in network operation mode I.
User Equipment:
The UE has a valid P-TMSI-1 and RAI-1.
The UE has been registered in the CS domain.
Related ICS/IXIT statements
Support of PS service Yes/No
UE operation mode A Yes/No
Switch off on button Yes/No
Automatic PS attach procedure at switch on or power on Yes/No
Test procedure
The UE initiates a PS attach procedure. The SS reallocates the P-TMSI and returns ATTACH ACCEPT message with a new P-TMSI and timer T3312. The UE acknowledge the new P-TMSI by sending ATTACH COMPLETE message. PS radio contact is distorted before T3312 timeout. PS radio contact is established again (after T3312 timeout), and a routing area updating procedure is performed immediately.
T3312; set to 6 minutes.
Expected Sequence
|
Step |
Direction |
Message |
Comments |
|
|
UE |
SS |
|||
|
SS |
The following messages are sent and shall be received on cell A. |
|||
|
1 |
SS |
Set the cell type of cell A to the "Serving cell". Set the cell type of cell B to the "Non-Suitable cell". (see note) |
||
|
2 |
SS |
The UE is set in UE operation mode A (see ICS). |
||
|
3 |
UE |
The UE is powered up or switched on and initiates an attach (see ICS). |
||
|
4 |
-> |
ATTACH REQUEST |
Attach type = ‘GPRS attach’ Mobile identity = P-TMSI-1 Old Routing area identity = RAI-1 |
|
|
4a |
<- |
AUTHENTICATION AND CIPHERING REQUEST |
||
|
4b |
-> |
AUTHENTICATION AND CIPHERING RESPONSE |
||
|
4c |
SS |
The SS starts integrity protection. |
||
|
5 |
<- |
ATTACH ACCEPT |
Attach result = ‘GPRS only attached’ Allocated P-TMSI = P-TMSI-2 P-TMSI Signature = P-TMSI-2 signature Routing area identity = RAI-1 T3312 = 6 minutes |
|
|
6 |
-> |
ATTACH COMPLETE |
||
|
7 |
SS |
After 5 minutes, the signal strength is lowered until the UE has lost contact with the SS. Set the cell type of cell A to the "non-suitable cell".(see note) |
||
|
8 |
SS |
Wait 2 minutes. |
||
|
The following messages are sent and shall be received on cell B. |
||||
|
9 |
SS |
Set the cell type of cell B to the "Serving cell". (see note) |
||
|
10 |
UE |
Cell B is preferred by the UE. |
||
|
11 |
UE |
The UE immediately starts a combined RA updating procedure |
||
|
12 |
-> |
ROUTING AREA UPDATE REQUEST |
Update type = ‘Combined RA/LA updating with IMSI attach’ Old P-TMSI signature=P-TMSI-2 signature Old Routing area identity = RAI-1 |
|
|
13 |
<- |
ROUTING AREA UPDATE ACCEPT |
Update result = ‘Combined RA/LA updated’ P-TMSI Signature = P-TMSI-3 signature MS identity = TMSI-2 Routing area identity = RAI-4 |
|
|
14 |
-> |
ROUTING AREA UPDATE COMPLETE |
||
|
NOTE: The definitions for "Suitable neighbour cell" and "Serving cell" are specified in TS34.108 clause 6.1 in the relevant to the RAT of the cells "Reference Radio Conditions" subclauses. |
||||
Specific message contents
None.
12.4.3.3.5 Test requirements
At step4, when the UE is powered up or switched on, UE shall:
– initiate the PS attach procedure with the information elements specified in the above Expected Sequence.
At step12, when the UE is both IMSI attached for PS and non-PS service , and if the UE lost coverage of the reiterated PLMN and the timer T3312 expires, if the UE returns to coverage in a cell that supports PS and the network is in network oration mode I, UE shall:
– perform the combined routing area update procedure indicating "combined RA/LA updating with IMSI attach".
12.4.3.4 Periodic routing area updating / no cell available
12.4.3.4.1 Definition
12.4.3.4.2 Conformance requirement
If the UE is both IMSI attached for PS and non-PS services, and if the UE lost coverage of the registered PLMN and timer T3312 expires; if the UE returns to coverage in a cell that supports PS and the network is in network operation mode II, then the UE shall perform a periodic routing area update procedure and a periodic location update procedure.
Reference
3GPP TS 24.008 clauses 4.7.2.2 and 4.7.5.2.
12.4.3.4.3 Test purpose
To test the behaviour of the UE with respect to the periodic routing area updating procedure.
12.4.3.4.4 Method of test
Initial condition
System Simulator:
One cell operating in network operation mode II.
The SIB1 IE "CN domain specific NAS system information", for the CS Domain, is set to value "00 00" (T3212 value is set to 0 and ATT flag is set to FALSE to prevent repeated CS domain registration and/or IMSI Detach by UEs in operation mode A) in all cells.
User Equipment:
The UE has a valid P-TMSI-1 and RAI-1.
If the UE is in UE operation mode A, then the UE has been registered in the CS domain.
Related ICS/IXIT statements
Support of PS service Yes/No
UE operation mode A Yes/No
UE operation mode C Yes/No
Switch off on button Yes/No
Automatic PS attach procedure at switch on or power on Yes/No
Test procedure
The UE initiates a PS attach procedure. The SS reallocates the P-TMSI and returns ATTACH ACCEPT message with a new P-TMSI and timer T3312. The UE acknowledge the new P-TMSI by sending ATTACH COMPLETE message. PS radio contact is distorted before T3312 timeout. PS radio contact is established again (after T3312 timeout), and a periodic routing area updating procedure is performed immediately (no periodic location update procedure is performed as T3212=infinity).
T3312; set to 6 minutes.
Expected Sequence
|
Step |
Direction |
Message |
Comments |
|
UE |
SS |
||
|
1 |
UE |
The UE is set in UE operation mode A or C (see ICS). The UE is powered up or switched on and initiates an attach (see ICS). |
|
|
1a |
UE |
Registration on CS |
This step is only performed for UE in operation mode A. See TS 34.108 This is applicable only for UE in UE operation mode A. |
|
2 |
-> |
ATTACH REQUEST |
Attach type = ‘GPRS attach’ Mobile identity = P-TMSI-1 Old Routing area identity = RAI-1 |
|
2a |
<- |
AUTHENTICATION AND CIPHERING REQUEST |
|
|
2b |
-> |
AUTHENTICATION AND CIPHERING RESPONSE |
|
|
2c |
SS |
The SS starts integrity protection. |
|
|
3 |
<- |
ATTACH ACCEPT |
Attach result = ‘GPRS only attached’ Allocated P-TMSI = P-TMSI-2 P-TMSI Signature = P-TMSI-2 signature Routing area identity = RAI-1 T3312 = 6 minutes |
|
4 |
-> |
ATTACH COMPLETE |
|
|
5-12 |
(void) |
||
|
13 |
SS |
After 5 minutes, the signal strength is lowered until the UE have lost contact with the SS. |
|
|
14 |
SS |
After 2 minutes, the signal strength is increased until the UE have got contact with the SS. |
|
|
15 |
UE |
The UE immediately start the periodic RA updating procedure |
|
|
16 |
-> |
ROUTING AREA UPDATE REQUEST |
Update type = ‘Periodic updating’ Old P-TMSI signature=P-TMSI-2 signature Old Routing area identity = RAI-1 |
|
17 |
<- |
ROUTING AREA UPDATE ACCEPT |
No new mobile identity assigned. P-TMSI not included. Update result = ‘RA updated’ Routing area identity = RAI-1 |
Specific message contents
RRC System information block type 1
|
Information element |
Comment Value |
|
T3212 (Periodical Location updating) |
Infinity |
12.4.3.4.5 Test requirements
At step2, when the UE is powered up or switched on, UE shall:
– initiate the PS attach procedure with the information elements specified in the above Expected Sequence.
At step16, when the UE is both IMSI attached for PS and non-PS service, and if the UE lost coverage of the reiterated PLMN and the timer T3312 expires, if the UE returns to coverage in a cell in the same RA that supports PS and that indicates that the network is in network operation mode II, UE shall:
– perform the periodic routing area updating procedure indicating "Periodic updating".