26.7.3 Identification

3GPP51.010-1Mobile Station (MS) conformance specificationPart 1: Conformance specificationTS

The purpose of this procedure is to check that the MS gives its identity as requested by the network. If this procedure does not work, it will not be possible for the network to rely on the identity claimed by the MS.

26.7.3.1 General Identification

26.7.3.1.1 Conformance requirement

1) When requested by the network the Mobile Station shall send its IMSI.

2) When requested by the network the Mobile Station shall send the TMSI which it was previously allocated.

3) When requested by the network the Mobile Station shall send its IMEI as stored in the Mobile Equipment.

4) When requested by the network the Mobile Station shall send its IMEISV as stored in the Mobile Equipment.

Reference(s)

3GPP TS 04.08 / 3GPP TS 24.008 subclause 4.3.3.

26.7.3.1.2 Test purpose

1) To verify that the MS sends identity information as requested by the system in the following cases: IMSI and TMSI are requested in non-ciphered mode, IMEI is requested in ciphered mode.

2) To verify that the MS sends its IMEI, when requested to do so, in non-ciphered mode.

3) To verify that the MS sends its IMEISV, when requested to do so, in non-ciphered mode.

26.7.3.1.3 Method of test

26.7.3.1.3.1 Identification / test 1

Initial conditions

System Simulator:

1 cell, default values.

Mobile Station:

The MS has a valid TMSI. It is "idle updated" on the cell.

Specific PICS statements:

PIXIT statements:

– IMEI of the MS

Foreseen final state of the MS

The MS has a valid TMSI. It is "idle updated" on the cell.

Test Procedure

The SS requests identity information from the MS:

– IMSI in non ciphering mode,

– allocated TMSI in non ciphering mode,

– IMEI in ciphering mode.

Maximum duration of test

30 s.

Expected sequence

Step

Direction

Message

Comments

1

SS -> MS

PAGING REQUEST TYPE 1

2

MS -> SS

CHANNEL REQUEST

Establishment Cause: Answer to paging.

3

SS -> MS

IMMEDIATE ASSIGNMENT

4

MS -> SS

PAGING RESPONSE

5

SS -> MS

IDENTITY REQUEST

"Identity type" IE is IMSI.

6

MS -> SS

IDENTITY RESPONSE

"Mobile identity" IE specifies the IMSI of the MS.

7

SS -> MS

IDENTITY REQUEST

"Identity type" IE is TMSI.

8

MS -> SS

IDENTITY RESPONSE

"Mobile identity" IE specifies the allocated TMSI of the MS.

9

SS -> MS

CIPHERING MODE COMMAND

10

MS -> SS

CIPHERING MODE COMPLETE

11

SS -> MS

IDENTITY REQUEST

"Identity type" IE is IMEI.

12

MS -> SS

IDENTITY RESPONSE

"Mobile identity" IE specifies the IMEI stored in the Mobile Equipment.

13

SS -> MS

CHANNEL RELEASE

After the sending of this message, the SS waits for the disconnection of the main signalling link.

Specific message contents:

None.

26.7.3.1.3.2 Identification / test 2

Initial conditions

System Simulator:

1 cell, default values.

Mobile Station:

The MS has a valid TMSI. It is in "idle updated".

Specific PICS statements:

PIXIT statements:

– IMEI of the MS

– IMEISV of the MS

Foreseen final state of the MS

The MS has a valid TMSI. It is "idle updated".

Test Procedure

The SS requests identity information from the MS:

– IMEI in non ciphering mode;

– IMEISV in non ciphering mode.

Maximum duration of test

30 s.

Expected sequence

Step

Direction

Message

Comments

1

SS -> MS

PAGING REQUEST TYPE 1

2

MS -> SS

CHANNEL REQUEST

Establishment Cause: Answer to paging.

3

SS -> MS

IMMEDIATE ASSIGNMENT

4

MS -> SS

PAGING RESPONSE

5

SS -> MS

IDENTITY REQUEST

"Identity type" IE is IMEI.

6

MS -> SS

IDENTITY RESPONSE

"Mobile identity" IE specifies the IMEI of the MS.

7

SS -> MS

IDENTITY REQUEST

"Identity type" IE is IMEIS.

8

MS -> SS

IDENTITY RESPONSE

"Mobile identity" IE specifies the IMEISV of the MS.

9

SS -> MS

CHANNEL RELEASE

After the sending of this message, the SS waits for the disconnection of the main signalling link.

Specific message contents:

None.

26.7.3.2 Handling of IMSI shorter than the maximum length

26.7.3.2.1 Conformance requirement

The MS shall be capable of handling an IMSI that is not of the maximum length.

Reference(s)

3GPP TS 04.08 / 3GPP TS 24.008 subclause 10.5.1.4.

26.7.3.2.2 Test purpose

To check that the MS behaves correctly when activated with an IMSI of length less than the maximum length.

In this condition, the MS shall:

– perform location updating;

– answer to paging with IMSI;

– give the correct IMSI when asked by an IDENTITY REQUEST;

– attempt CM connection establishment when requested to;

– attempt call re-establishment when needed;

– attempt IMSI detach when needed;

– erase its TMSI when the IMSI is sent by the network in a LOCATION UPDATING ACCEPT or a TMSI REALLOCATION COMMAND message.

26.7.3.2.3 Method of test

Initial conditions

System Simulator:

1 cell, default values.

IMSI attach/detach bit set to "1".

Mobile Station:

The MS has no valid TMSI.

It is "idle updated".

The IMSI has the value 001011234.

Specific PICS statements:

– On/Off switch (TSPC_Feat_OnOff)

PIXIT statements:

Foreseen final state of MS

The MS has no valid TMSI. It is in "idle, updated".

Test Procedure

The MS is paged with its IMSI. The MS shall answer to paging and include the correct IMSI in the PAGING RESPONSE message. During call establishment, the SS asks for the IMSI of the MS. The MS shall answer by an IDENTITY RESPONSE message including the correct IMSI. During the active phase of the call, the SS stops sending valid SACCH frames. The MS performs call re-establishment. The MS shall include the correct IMSI in the CM RE-ESTABLISHMENT message. a TMSI REALLOCATION COMMAND including a TMSI is sent to the MS. The MS acknowledges this message. The call is release.

The MS is paged with its TMSI. The MS shall answer to paging and includes its TMSI in the PAGING RESPONSE message. During call establishment, the SS sends a TMSI REALLOCATION COMMAND including the IMSI to the MS. The MS shall acknowledge this message. The MS shall erase its TMSI. The call is released.

The MS is switched off or has its power source removed. The MS performs IMSI detach. The MS shall include the correct IMSI in the IMSI DETACH INDICATION message.

The MS is switched on or powered on. The MS performs IMSI attach. The MS shall include the correct IMSI in the LOCATION UPDATING REQUEST message. A TMSI is allocated to the MS.

The LAC of the cell is changed. The MS performs location updating. The SS includes the IMSI in the LOCATION UPDATING ACCEPT message.

A mobile originated CM connection is attempted. The MS shall include the correct IMSI in the CM SERVICE REQUEST message.

Maximum duration of test

5 minutes.

Expected sequence

Step

Direction

Message

Comments

1

SS -> MS

PAGING REQUEST TYPE 1

"mobile identity 1" contains IMSI of MS.

2

MS -> SS

CHANNEL REQUEST

Establishment cause: Answer to paging.

3

SS -> MS

IMMEDIATE ASSIGNMENT

4

MS -> SS

PAGING RESPONSE

"mobile identity" contains the IMSI of the MS.

5

SS -> MS

IDENTITY REQUEST

"identity type" IE is IMSI.

6

MS -> SS

IDENTITY RESPONSE

"mobile identity" IE contains the IMSI of the MS.

7

The call is established using the sequence of the generic terminating call set-up procedure.

8

SS

The SS stops sending valid SACCH frames.

9

MS -> SS

CHANNEL REQUEST

10

SS -> MS

IMMEDIATE ASSIGNMENT

11

MS -> SS

CM REESTABLISHMENT REQUEST

"mobile identity" IE contains IMSI of the MS.

12

SS -> MS

TMSI REALLOCATION COMMAND

"mobile identity" contains a TMSI.

13

MS -> SS

TMSI REALLOCATION COMPLETE

14

SS -> MS

CHANNEL RELEASE

After sending this message, the SS waits for the disconnection of the main signalling link.

15

SS -> MS

PAGING REQUEST TYPE 1

"mobile identity 1" contains TMSI of MS.

16

MS -> SS

CHANNEL REQUEST

Establishment cause: Answer to paging.

17

SS -> MS

IMMEDIATE ASSIGNMENT

18

MS -> SS

PAGING RESPONSE

"mobile identity" contains the TMSI of the MS.

19

SS -> MS

AUTHENTICATION REQUEST

20

MS -> SS

AUTHENTICATION RESPONSE

21

SS -> MS

TMSI REALLOCATION COMMAND

"mobile identity" contains a IMSI of MS.

22

MS -> SS

TMSI REALLOCATION COMPLETE

23

SS -> MS

CHANNEL RELEASE

24

MS

If possible (see PICS) the MS is switched off, otherwise the MS has its power source removed.

25

MS -> SS

CHANNEL REQUEST

If the MS was switched off it performs IMSI detach.

26

SS -> MS

IMMEDIATE ASSIGNMENT

27

MS -> SS

IMSI DETACH INDICATION

"mobile identity" contains IMSI of MS.

28

SS -> MS

CHANNEL RELEASE

29

MS

The MS is switched on or has power restored.

30

MS -> SS

CHANNEL REQUEST

31

SS -> MS

IMMEDIATE ASSIGNMENT

32

MS -> SS

LOCATION UPDATING REQUEST

"mobile identity" contains IMSI of MS.

33

SS -> MS

LOCATION UPDATING ACCEPT

"mobile identity" contains a TMSI.

34

MS -> SS

TMSI REALLOCATION COMPLETE

35

SS -> MS

CHANNEL RELEASE

36

SS

The SS changes the LAC of the cell.

37

MS -> SS

CHANNEL REQUEST

Shall be sent within 35s of the LAC being changed.

38

SS -> MS

IMMEDIATE ASSIGNMENT

39

MS -> SS

LOCATION UPDATING REQUEST

"mobile identity" contains TMSI of the MS.

40

SS -> MS

LOCATION UPDATING ACCEPT

"mobile identity" contains IMSI of the MS.

41

SS -> MS

CHANNEL RELEASE

42

MS

a mobile originated CM connection is attempted.

43

MS -> SS

CHANNEL REQUEST

44

SS -> MS

IMMEDIATE ASSIGNMENT

45

MS -> SS

CM SERVICE REQUEST

"mobile identity" contains IMSI of the MS.

46

SS -> MS

CHANNEL RELEASE

Specific message contents

None.