26.14.6 VGCS-VBS / GCC-BCC Procedures

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

26.14.6.1 VGCS-VBS / GCC-BCC Procedures / MO call establishment

26.14.6.1.1 Conformance requirement

1. The MS in idle updated mode shall initiate a VGCS/VBS call correctly using IMMEDIATE SETUP procedure if a priority level is requested by the user for which the user has the subscription and the fast call setup is enabled.

2. The MS in idle updated mode shall initiate a VGCS/VBS call correctly using SETUP procedure on request.

3. For VGCS call after establishment, the MS shall indicate to the user that an indication of the desire to speak should be made if he wants to speak. If this is not done within a certain time, the MS shall send an UPLINK RELEASE.

Reference(s)

3GPP TS 04.68 subclause 6.2.2.

3GPP TS 04.69 subclause 6.2.2.

3GPP TS 03.68 subclause 11.3.1.1.3.

26.14.6.1.2 Test purpose

To verify that in idle updated mode:

1. The MS initiates a VGCS/VBS call correctly using IMMEDIATE SETUP procedure if a priority level is requested by the user for which the user has the subscription and the fast call setup is enabled.

2. The MS initiates a VGCS/VBS call correctly using SETUP procedure on request.

3. After establishment of VGCS call, the MS indicates that an user action is required if he wants to speak. If such user action is not made within a certain time, the MS sends an UPLINK RELEASE.

26.14.6.1.3 Method of test

Initial Conditions

System Simulator:

1 cell with default parameters for ASCI testing.

Mobile Station:

The MS is in MM-state "idle, updated" with a TMSI allocated.

Specific PICS statements:

– Support eMLPP (TSPC_Serv_eMLPP)

PIXIT Statements:

– Way to configure VGCS or VBS.

– Way to initiate a VGCS/VBS call.

– Way to select the immediate set-up or the normal set-up.

– Way to verify the downlink speech path.

– Way to indicate the desire of speaking.

The allowed duration between an indication of a required user action for speaking and an action performed by user.

Foreseen Final State of the MS

"Idle, updated", with TMSI allocated.

Test Procedure

The MS is in MM-state "idle, updated". The MS is requested to initiate a VGCS or VBS call using immediate setup procedure by selecting the subscribed priority ‘0’ with the appropriate MMI action. The field EFeMLPP associates to the subscribed priority ‘0’ the fast-call setup subscription. It is checked that the MS performs correctly the immediate setup procedure. The call is terminated. The MS is requested to initiate a VGCS or VBS call using setup procedure by selecting the priority ‘4’ with the appropriate MMI action. It is checked that the MS performs correctly the setup procedure. The call is cleared.

Maximum Duration of Test

5 minutes.

Expected Sequence

Steps 0 to 18 are executed if MS supports eMLPP.

Step

Direction

Message

Comments

0

MS

The MS is in idle updated state.

1

MS

MMI action to select a priority level 0 and MMI action to initiate VGCS/VBS call with immediate setup.

2

MS -> SS

CHANNEL REQUEST

3

SS -> MS

IMMEDIATE ASSIGNMENT

TCH/F, single RF channel

GSM 450: 275,

GSM 480: 322,

GSM 900: 50,

DCS 1 800: 750

PCS 1 900: 650

GSM710: 470

GSM 750: 470

T-GSM 810: 470

GSM 850: 177

4

MS -> SS

IMMEDIATE SETUP

L2: SABM / UA

5

SS -> MS

AUTHENTICATION REQUEST

6

MS -> SS

AUTHENTICATION RESPONSE

7

SS -> MS

CIPHERING MODE COMMAND

no ciphering

8

MS -> SS

CIPHERING MODE COMPLETE

9

SS -> MS

CHANNEL MODE MODIFY

very early assignment

10

MS -> SS

CHANNEL MODE MODIFY ACKNOWLEDGE

11

SS -> MS

CONNECT

verify that the TCH is through connected

12

SS -> MS

GET STATUS

13

MS -> SS

STATUS

check that the MS is in state U2sr (for VGCS) or U2 (for VBS).

for VGCS call

A14

MS

check that the MS indicates a user action needed for a desire of speaking.

A15

MS

user does not answer the indication.

A16

MS -> SS

UPLINK RELEASE

A17

SS -> MS

UPLINK FREE

A18

SS -> MS

CHANNEL RELEASE

UI format

for VBS call

B14

SS -> MS

TERMINATION

terminate the call.

B15

SS -> MS

CHANNEL RELEASE

The MS releases L2 multiple frame link L2:DISC/UA.

20

MS

MMI action to initiate VGCS/VBS call with setup by selecting the priority ‘4’.

21

MS -> SS

CHANNEL REQUEST

22

SS -> MS

IMMEDIATE ASSIGNMENT

TCH/F, single RF channel

GSM 450: 275,

GSM 480: 322,

GSM 900: 50,

DCS 1 800: 750

PCS 1 900: 650

GSM710: 470

GSM 750: 470

T-GSM 810: 470

GSM 850: 177

23

MS -> SS

CM SERVICE REQUEST

L2: SABM / UA

24

SS -> MS

AUTHENTICATION REQUEST

25

MS -> SS

AUTHENTICATION RESPONSE

26

SS -> MS

CIPHERING MODE COMMAND

no ciphering

27

MS -> SS

CIPHERING MODE COMPLETE

28

MS -> SS

SETUP

29

SS -> MS

CHANNEL MODE MODIFY

very early assignment

30

MS -> SS

CHANNEL MODE MODIFY ACKNOWLEDGE

31

SS -> MS

CONNECT

verify that the TCH is through connected

only for VGCS call

A32

MS

check that the MS indicates a user action needed for a desire of speaking. An user action for speaking.

35

SS -> MS

GET STATUS

36

MS -> SS

STATUS

check that the MS is in state U2sr (for VGCS) or U2 (for VBS).

37

SS -> MS

TERMINATION

terminate the call.

38

SS -> MS

CHANNEL RELEASE

The MS releases L2 multiple frame link L2:DISC/UA.

26.14.6.2 VGCS-VBS / GCC-BCC Procedures / Transaction Identifier

26.14.6.2.1 Conformance requirement

1. The originator of the GCC or BCC transaction shall choose the Transaction Identifier (TI).

2. When the MS (not originator) goes to group transmit mode, it may only send GCC or BCC messages when it has received a GCC or BCC message form network, it shall use the TI value which has been used in the messages from network.

Reference(s)

3GPP TS 04.07 subclause 11.2.3.1.3.

3GPP TS 04.68 clause 5.

3GPP TS 04.69 clause 5.

26.14.6.2.2 Test purpose

1. To verify that The originator of the GCC or BCC transaction chooses the Transaction Identifier (TI).

2. To verify that when the MS (not originator) goes to group transmit mode, if the MS sends GCC or BCC message to network to respond to messages from network, it uses the TI value which is used in the messages received from network.

26.14.6.2.3 Method of test

Initial Conditions

System Simulator:

1 cell with default parameters for ASCI testing.

Mobile Station:

The MS is in MM-state "idle, updated" with a TMSI allocated.

Specific PICS statements:

PIXIT Statements:

– Support VBS originating.

– Way to configure VGCS or VBS.

– Way to accept a group call.

– Way to request uplink access.

– Way to select the immediate set-up or the normal set-up.

– Way to initiate VBS call.

Foreseen Final State of the MS

MM idle updated state.

Test Procedure

If the MS supports only VBS, the MS is requested to initiate a VBS call using setup procedure by MMI action. In the BROADCAST CALL ACTIVE (U2) state, it is checked that the MS uses correct TI in the STATUS message to respond to the GET STATUS message.

If the MS supports VGCS, the MS is brought into group transmit mode. In the SEND and RECEIVE state (U2sr), it is checked that the MS uses correct TI in the STATUS message to respond to the GET STATUS message.

Maximum Duration of Test

5 minutes.

Expected Sequence

Step

Direction

Message

Comments

If the MS supports VBS originating, step 0 to step 13 are executed.

0

MS

the MS is in idle mode

1

MS

MMI action to initiate VBS call with setup procedure.

2

MS -> SS

CHANNEL REQUEST

3

SS -> MS

IMMEDIATE ASSIGNMENT

TCH/F, single RF channel

GSM 450: 275,

GSM 480: 322,

GSM 900: 50,

DCS 1 800: 750

PCS 1 900: 650

GSM 710: 470

GSM 750: 470

T-GSM 810: 470

GSM 850: 177

4

MS -> SS

CM SERVICE REQUEST

L2: SABM / UA

5

SS -> MS

CM SERVICE ACCEPT

6

MS -> SS

SETUP

check that the flag of the TI is set to ‘0’B, and the value of the TI is within ‘000’B to ‘110’B.

7

SS -> MS

AUTHENTICATION REQUEST

8

MS -> SS

AUTHENTICATION RESPONSE

9

SS -> MS

CHANNEL MODE MODIFY

10

MS -> SS

CHANNEL MODE MODIFY ACKNOWLEDGE

11

SS -> MS

CONNECT

10

SS -> MS

GET STATUS

TI= the TI in step 6 with the flag=’1’B.

11

MS -> SS

STATUS

TI value is the same as that in step 10 with flag=’0’B.

12

SS -> MS

TERMINATION

13

SS -> MS

CHANNEL RELEASE

The MS releases L2 multiple frame link L2:DISC/UA.

If the MS supports VGCS talking, the following steps are performed.

15

MS

the MS is in group transmit mode (VGCS), but is not the originator of the call.

16

SS -> MS

GET STATUS

TI="0001".

17

MS -> SS

STATUS

TI is set to "1001".

18

SS -> MS

UPLINK RELEASE

19

SS -> MS

CHANNEL RELEASE

UI format.

26.14.6.3 VGCS-VBS / GCC-BCC Procedures / Call Termination / originator / group transmit mode

26.14.6.3.1 Conformance requirement

When in group transmit mode, on request of upper layer, the MS which is the originator of the VGCS/VBS call shall initiate the termination procedure by sending a TERMINATION REQUEST message to its peer entity in the network and setting timer Tterm, entering state U5. The network accepts the termination or on Tterm expiration, the MS returns to idle state.

Reference(s)

3GPP TS 04.68 subclause 6.4.1.

3GPP TS 04.69 subclause 6.4.1.

26.14.6.3.2 Test purpose

To verify that when in group transmit mode, on request of the user, the MS which is the originator of the VGCS/VBS call initiates the termination procedure by sending a TERMINATION REQUEST message to its peer entity in the network and setting timer Tterm, entering state U5. If the termination is accepted or on Tterm is expired, the MS returns to idle mode.

26.14.6.3.3 Method of test

Initial Conditions

System Simulator:

1 cell with default parameters for ASCI testing.

Mobile Station:

The MS is in MM-state "idle, updated" with a TMSI allocated.

Specific PICS statements:

PIXIT Statements:

– Way to configure VGCS or VBS.

– Way to initiate VBS call.

– Way to initiate VGCS call.

– Way to select the immediate set-up or the normal set-up.

– Way to terminate VGCS/VBS call.

Foreseen Final State of the MS

MM idle, updated state.

Test Procedure

A VGCS/VBS call is established and the MS, as the originator, is brought into group transmit mode. The MS is requested to terminate the VGCS/VBS call by MMI action. It is checked that the MS sends TERMINATION REQUEST message and enters state U5.

For execution counter k=1, before Tterm times out, the SS accepts the termination request, the call is terminated. For k=2, the SS does not respond to the termination request. It is checked that after Tterm times out, the MS clears the context related to the group call and returns to idle mode.

Maximum Duration of Test

5 minutes.

Expected Sequence

The test sequence is executed for k = 1, 2.

Step

Direction

Message

Comments

0

MS

the MS is in idle updated mode.

1

MS

MMI action to initiate VGCS/VBS call using setup procedure.

2

MS -> SS

CHANNEL REQUEST

3

SS -> MS

IMMEDIATE ASSIGNMENT

TCH/F, single RF channel

GSM 450: 275,

GSM 480: 322,

GSM 900: 50,

DCS 1 800: 750

PCS 1 900: 650

GSM710: 470

GSM 750: 470

T-GSM 810: 470

GSM 850: 177

4

MS -> SS

CM SERVICE REQUEST

L2: SABM / UA

5

SS -> MS

IDENTITY REQUEST

6

MS -> SS

IDENTITY RESPONSE

7

SS -> MS

CIPHERING MODE COMMAND

no ciphering

8

MS -> SS

CIPHERING MODE COMPLETE

9

MS -> SS

SETUP

10

SS -> MS

CHANNEL MODE MODIFY

11

MS -> SS

CHANNEL MODE MODIFY ACKNOWLEDGE

12

SS -> MS

CONNECT

verify that the TCH is through connected

13

MS

MMI action to terminate the call.

14

MS -> SS

TERMINATION REQUEST

for k = 1

A15

SS -> MS

TERMINATION

sent 8 s. from step 14, cause = protocol error, unspecified

A16

SS -> MS

CHANNEL RELEASE

The MS releases L2 multiple frame link L2:DISC/UA.

for k = 2

B15

SS

wait for Tterm timeout (round 10s)

B16

MS -> SS

UPLINK RELEASE

received between 9 – 11 s. from step 14 – for VGCS only.

B17

SS -> MS

CHANNEL RELEASE

UI format

18

SS -> MS

NOTIFICATION/NCH

with a description of VGCS/VBS channel and a VGCS/VBS call reference active in the MS.

19

MS

check that the MS gives an indication containing the notified group call reference

20

MS

MMI action to join the VGCS/VBS call

21

MS

check that the TCH in downlink is through connected and there is no uplink transmission on that channel for 10 s.

22

SS -> MS

CHANNEL RELEASE

UI format

26.14.6.4 VGCS-VBS / GCC-BCC Procedures / Call Termination / originator in group receive mode

26.14.6.4.1 Conformance requirement

When in group receive mode, on request of upper layer, the MS which is the originator of the VGCS call shall enter sub-state U2ws and ask RR to enter group transmit mode. As soon as COMM = T, it shall send a TERMINATION REQUEST message to its peer entity in the network, set timer Tterm, and enter state U5. The network accepts the termination or on Tterm expiration, the MS returns to idle mode.

Reference(s)

3GPP TS 04.68 subclause 6.4.1.

26.14.6.4.2 Test purpose

To verify that when in group receive mode, on request of the user, the MS which is the originator of the VGCS call enters sub-state U2ws and asks RR to enter group transmit mode. As soon as COMM = T, it sends a TERMINATION REQUEST message to its peer entity in the network, set timer Tterm , and enters state U5. The network accepts the termination or on Tterm expiration, the MS returns to idle mode.

26.14.6.4.3 Method of test

Initial Conditions

System Simulator:

1 cell with default parameters for ASCI testing.

Mobile Station:

The MS is in MM-state "idle, updated" with a TMSI allocated.

Specific PICS statements:

– Support of Half Rate Speech (TSPC_AddInfo_Half_rate_version_1)

PIXIT Statements:

– Way to configure VGCS.

– Way to initiate a VGCS call.

– Way to select the immediate set-up or the normal set-up.

– Way to terminate a VGCS call.

Foreseen Final State of the MS

MM idle, updated state.

Test Procedure

The MS originates a VGCS call and is brought into group receive mode. The MS is requested to terminate the VGCS call by MMI action. It is checked that the MS firstly enters group transmit mode and then sends TERMINATION REQUEST message, enters state U5.

For k = 1 , the SS accepts the request, the call is terminated. For k = 2, the SS does not respond to the request. It is checked that after Tterm timeout the MS aborts the call.

Maximum Duration of Test

5 minutes.

Expected Sequence

The test sequence is executed for k = 1, 2.

Step

Direction

Message

Comments

0

MS

the MS is in idle updated mode.

1

MS

MMI action to initiate VGCS call using setup procedure.

2

MS -> SS

CHANNEL REQUEST

3

SS -> MS

IMMEDIATE ASSIGNMENT

4

MS -> SS

CM SERVICE REQUEST

VGC establishment, L2: SABM / UA

5

SS -> MS

CIPHERING MODE COMMAND

no ciphering

6

MS -> SS

CIPHERING MODE COMPLETE

7

MS -> SS

SETUP

8

SS -> MS

AUTHENTICATION REQUEST

9

MS -> SS

AUTHENTICATION RESPONSE

10

SS -> MS

ASSIGNMENT COMMAND

TCH/F, for k = 2 TCH/H if possible

11

MS -> SS

ASSIGNMENT COMPLETE

12

SS -> MS

CONNECT

verify that the TCH is through connected

13

MS

MMI action to quit the VGCS transmit mode

14

MS -> SS

UPLINK RELEASE

check that the TCH in downlink is through connected and there is no uplink transmission on that channel for 10 s.

15

SS -> MS

UPLINK FREE

17

MS

MMI action to terminate the call, a pending request

18

MS -> SS

UPLINK ACCESS

RR attempts to enter group transmit mode

19

MS -> SS

UPLINK ACCESS

20

SS -> MS

UPLINK BUSY

21

SS -> MS

VGCS UPLINK GRANT

Reference to step 19

22

MS -> SS

TALKER INDICATION

L2: SABM / UA

23

MS -> SS

TERMINATION REQUEST

for k = 1

A25

SS -> MS

TERMINATION

sent 8 s. from step 23, cause = protocol error, unspecified

A26

SS -> MS

CHANNEL RELEASE

The MS releases L2 multiple frame link L2:DISC/UA.

for k = 2

B25

SS

wait for Tterm timeout (round 10s)

B26

MS -> SS

UPLINK RELEASE

received 9 – 11 s. from step 23.

B27

SS -> MS

CHANNEL RELEASE

UI format

28

SS -> MS

NOTIFICATION/NCH

with a description of VGCS/VBS channel and a VGCS/VBS call reference active in the MS.

29

MS

check that the MS gives an indication containing the notified group call reference

30

MS

MMI action to join the VGCS/VBS call

31

MS

check that the TCH in downlink is through connected and there is no uplink transmission on that channel for 10 s.

32

SS -> MS

CHANNEL RELEASE

UI format

26.14.6.5 VGCS-VBS / GCC-BCC Procedures / Call Termination / not originator

26.14.6.5.1 Conformance requirement

1. If the MS is not the originator of the VGCS/VBS call, on request of upper layer, the MS shall not attempt to terminate the call.

Reference(s)

3GPP TS 04.68, subclause 6.4.1 (implicitly).

3GPP TS 04.69, subclause 6.4.1 (implicitly).

26.14.6.5.2 Test purpose

To verify that when the MS is not the originator of the VGCS/VBS call, on request of the user, the MS does not attempt to terminate the call.

26.14.6.5.3 Method of test

Initial Conditions

System Simulator:

1 cell with default parameters for ASCI testing.

Mobile Station:

The MS is in group receive mode (not originator).

Specific PICS statements:

PIXIT Statements:

– Way to configure VGCS or VBS.

– Way to join a VGCS/VBS call.

– Way to terminate a call.

Foreseen Final State of the MS

MM-state idle, updated.

Test Procedure

The MS is brought into group receive mode (not originator). The MS is requested to terminate the call by MMI action. It is checked that the MS does not attempt the termination.

Maximum Duration of Test

2 minutes.

Expected Sequence

Step

Direction

Message

Comments

0

MS

the MS is in group receive mode (not the originator).

1

MS

MMI action to terminate the call.

2

SS

check that there is no transmission from the MS for 10 s.

3

SS -> MS

CHANNEL RELEASE

UI format

26.14.6.6 VGCS-VBS / GCC-BCC Procedures / GCC states

26.14.6.6.1 Conformance requirement

1. The GCC entity of the MS performs transitions between (main) states. In main state GROUP CALL ACTIVE (U2) it performs transitions between sub-states. It has certain parameters and attributes, which it sets and changes based on interaction with higher layer and lower layers and on message exchanges with its peer entity. These states and parameters shall be consistent as defined.

2. The mobile station in group transmit mode shall mute the downlink speech if SET STATUS message is received with DA bit set to 1. The mobile station shall no longer mute the downlink after receipt of a downlink SET STATUS message with a reset DA bit.

Reference(s)

3GPP TS 04.68, subclauses 6.1.2.1, 6.1.2.1.1 to 6.1.2.1.11, 6.5.1.1, 8.4 and 9.5.7.

26.14.6.6.2 Test purpose

1. To verify that the GCC states and parameters of the MS are consistent as defined.

2. To verify that the MS in group transmit mode mutes the downlink speech if downlink SET STATUS message is received setting DA bit. The mobile station no longer mutes the downlink speech after a SET STATUS message is received.

26.14.6.6.3 Method of test

Initial Conditions

System Simulator:

1 cell with default parameters for ASCI testing.

Mobile Station:

The MS is in MM-state "idle, updated" with a TMSI allocated.

Specific PICS statements:

– Support VGCS originating (TSPC_AddInfo_VGCS_Originating)

– Support VGCS listening (TSPC_AddInfo_VGCS_Listening)

PIXIT Statements:

– Way to configure VGCS.

– Way to check downlink is muted or not.

– Way to accept VGCS call.

– Way to initiate VGCS call.

Foreseen Final State of the MS

MM-state Idle, updated.

Test Procedure

If the MS supports VGCS originating, it is requested to initiate a VGCS call. It is checked by getting status that the MS goes through different GCC states with correct parameters. If the MS supports VGCS talking but not VGCS originating, it is brought to group receive mode and then group transmit mode.

When MS is in group transmit mode the SS sends SET PARAMETER message The DA bit in state attributes is set to 0. It is checked that the downlink of the MS is muted. The SS sends SET PARAMETER message with DA bit set to 1. It is checked that the downlink of the MS is unmuted.

Similarly, it is checked that the MS goes through different GCC states with correct parameters.

Maximum Duration of Test

5 minutes.

Expected Sequence

If the MS supports VGCS originating, the step 1 to step 40 are performed.

Step

Direction

Message

Comments

0

MS

The MS is in idle mode.

1

MS

MMI action to initiate VGCS call

2

MS -> SS

CHANNEL REQUEST

3

SS -> MS

IMMEDIATE ASSIGNMENT

TCH/F, single RF channel

GSM 450: 275,

GSM 480: 322,

GSM 900: 50,

DCS 1 800: 750

PCS 1 900: 650

GSM: 470

GSM 750: 470

T-GSM 810: 470

GSM 850: 177

4

MS -> SS

CM SERVICE REQUEST

VGC establishment, L2: SABM / UA

5

SS -> MS

CM SERVICE ACCEPT

6

MS -> SS

SETUP

7

SS -> MS

GET STATUS

8

MS -> SS

STATUS

state U1, ORIG=T COMM=T D-ATT=F U-ATT=F

9

SS -> MS

CONNECT

10

SS -> MS

GET STATUS

11

MS -> SS

STATUS

state U2sl, ORIG=T COMM=T D-ATT=T U-ATT=T

12

SS -> MS

CHANNEL MODE MODIFY

13

MS -> SS

CHANNEL MODE MODIFY ACKNOWLEDGE

14

SS -> MS

GET STATUS

15

MS -> SS

STATUS

state U2sr, ORIG=T COMM=T D-ATT=T U-ATT=T

16

MS

the MS asks to indicate the desire of speaking. MMI action to indicate desire of talking.

17

MS

the MS in group talking mode for 5 s.

18

SS -> MS

SET PARAMETER

DA = ‘0’B

19

MS

check that the downlink is muted

20

SS -> MS

SET PARAMETER

DA = ‘1’B

21

MS

check that the downlink is not muted

22

MS

MMI action to quit group talking

23

MS -> SS

UPLINK RELEASE

24

SS -> MS

UPLINK FREE

25

MS

MMI action to request uplink access

26

MS -> SS

UPLINK ACCESS

27

MS -> SS

UPLINK ACCESS

28

SS -> MS

UPLINK BUSY

29

SS -> MS

VGCS UPLINK GRANT

Reference to step 28

30

MS -> SS

TALKER INDICATION

L2: SABM / UA

31

SS -> MS

GET STATUS

32

MS -> SS

STATUS

state U2sr, ORIG=T COMM=T D-ATT=T U-ATT=T

33

MS

MMI action to terminate the VGCS call

34

MS -> SS

TERMINATION REQUEST

35

SS -> MS

GET STATUS

36

MS -> SS

STATUS

state U5, ORIG=T COMM=T D-ATT=T U-ATT=T

37

SS -> MS

TERMINATION

38

SS -> MS

CHANNEL RELEASE

The MS releases L2 multiple frame link L2:DISC/UA.

The MS is in idle mode.

39

SS -> MS

NOTIFICATON/NCH

with VGCS call reference active in the MS, but without VGCS channel description

40

MS

MMI action to join the VGCS call

41

MS -> SS

CHANNEL REQUEST

42

SS -> MS

IMMEDIATE ASSIGNMENT

a signalling channel

43

MS -> SS

NOTIFICATION RESPONSE

L2: SABM / UA

44

SS -> MS

GET STATUS

45

MS -> SS

STATUS

state U2wr, ORIG=F COMM=T D-ATT=F U-ATT=F

46

SS -> MS

CHANNEL RELEASE

I format, with group channel description. The MS releases L2 multiple frame link L2:DISC/UA.

47

SS -> MS

UPLINK FREE

48

MS

MMI action to request uplink access

49

MS -> SS

UPLINK ACCESS

50

MS -> SS

UPLINK ACCESS

51

SS -> MS

UPLINK BUSY

52

SS -> MS

VGCS UPLINK GRANT

Reference to step 54

53

MS -> SS

TALKER INDICATION

L2: SABM / UA

54

SS -> MS

GET STATUS

55

MS -> SS

STATUS

state U2sr, ORIG=F COMM=T D-ATT=T U-ATT=T

56

SS -> MS

UPLINK RELEASE

57

SS -> MS

CHANNEL RELEASE

UI format, the MS returns to idle updated.The MS releases L2 multiple frame link L2:DISC/UA.

26.14.6.7 VGCS-VBS / GCC-BCC Procedures / BCC states

26.14.6.7.1 Conformance requirement

The BCC entity of the MS performs transitions between states. It has certain parameters and attributes, which it sets and changes based on interaction with higher layer and lower layers and on message exchanges with its peer entity. These states and parameters shall be consistent as defined.

Reference(s)

3GPP TS 04.69 subclauses 6.1.2.1 to 6.1.2.11 and 6.5.1.1.

26.14.6.7.2 Test purpose

To verify that the BCC states and parameters of the MS are consistent as defined.

26.14.6.7.3 Method of test

Initial Conditions

System Simulator:

1 cell with default parameters for ASCI testing.

Mobile Station:

The MS is in MM-state "idle, updated" with a TMSI allocated.

Specific PICS statements:

PIXIT Statements:

– Way to configure VBS.

– Way to select the immediate set-up or the normal set-up.

– Way to initiate VBS call.

Foreseen Final State of the MS

MM-state Idle, updated.

Test Procedure

The MS is requested to initiate VBS call. Then it is checked by getting status procedure that the MS goes through different GCC states with correct parameters.

Maximum Duration of Test

5 minutes.

Expected Sequence

Step

Direction

Message

Comments

0

MS

The MS is in idle mode.

1

MS

MMI action to initiate VBS call

2

MS -> SS

CHANNEL REQUEST

3

SS -> MS

IMMEDIATE ASSIGNMENT

TCH/F, single RF channel

GSM 450: 275,

GSM 480: 322,

GSM 900: 50,

DCS 1 800: 750

PCS 1 900: 650

GSM710: 470

GSM 750: 470

T-GSM 810: 470

GSM 850: 177

4

MS -> SS

CM SERVICE REQUEST

VBC establishment, L2: SABM / UA

5

SS -> MS

GET STATUS

6

MS -> SS

STATUS

state U0.p, ORIG=T COMM=F D-ATT=F U-ATT=F

7

SS -> MS

CM SERVICE ACCEPT

8

MS -> SS

SETUP

9

SS -> MS

GET STATUS

10

MS -> SS

STATUS

state U1, ORIG=T COMM=T D-ATT=F U-ATT=F

11

SS -> MS

CONNECT

12

SS -> MS

GET STATUS

13

MS -> SS

STATUS

state U2, ORIG=T COMM=T D-ATT=T U-ATT=T

14

SS -> MS

CHANNEL MODE MODIFY

15

MS -> SS

CHANNEL MODE MODIFY ACKNOWLEDGE

16

MS

MMI action to terminate VBS call

17

MS -> SS

TERMINATION REQUEST

18

SS -> MS

GET STATUS

19

MS -> SS

STATUS

state U5, ORIG=T COMM=T D-ATT=T U-ATT=T

20

SS -> MS

TERMINATION

21

SS -> MS

CHANNEL RELEASE

The MS releases L2 multiple frame link L2:DISC/UA.