26.6.12 Test of channel release

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

The purpose of this procedure is to deactivate the dedicated channels in use. When the channels are released, the MS returns to the CCCH configuration, idle mode.

26.6.12.1 Channel release / SDCCH

26.6.12.1.1 Conformance requirements

After the acknowledgement of the Layer 2 disconnection by the network, the MS shall not produce any further RF-transmission.

References

3GPP TS 04.08 / 3GPP TS 44.018 subclause 3.4.13.1

26.6.12.1.2 Test purpose

To verify that the MS is able to correctly release an SDCCH after having received a CHANNEL RELEASE message.

26.6.12.1.3 Method of test

Initial Conditions

System Simulator:

1 cell, default parameters.

Mobile Station:

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

Specific PICS statements

PIXIT statements

Foreseen Final State of the MS

"Idle, updated", with TMSI allocated.

Test Procedure

The MS is paged and allocated a dedicated channel and the Layer 2 signalling link is established. The SS then sends a CHANNEL RELEASE message, after which the MS shall initiate a Layer 2 disconnection process on the main signalling link. After the acknowledgement of the Layer 2 disconnection by the SS, the MS shall stop transmission of Layer 2 messages. This is verified for 3 s. The MS shall return to the idle state, which is verified through the paging procedure to which the MS shall respond.

Maximum Duration of Test

20 s.

Expected Sequence

Step

Direction

Message

Comments

1

SS -> MS

PAGING REQUEST TYPE 1

2

MS -> SS

CHANNEL REQUEST

Establ. Cause = "Answer to paging".

3

SS -> MS

IMMEDIATE ASSIGNMENT

Channel Type = SDCCH/8

4

MS -> SS

PAGING RESPONSE

5

SS -> MS

CHANNEL RELEASE

With a valid RR cause value.

6

MS -> SS

DISC

The MS may send the DISC message without performing a layer 2 acknowledgement of the CHANNEL RELEASE message.

7

SS -> MS

UA

——–

——–

The SS verifies for 3 s that the MS does not produce any Layer 2 messages.

——–

——–

The SS waits 12 s to allow the MS to perform cell reselection.

8

SS -> MS

PAGING REQUEST TYPE 1

9

MS -> SS

CHANNEL REQUEST

Establ. Cause = "Answer to paging".

10

SS -> MS

IMMEDIATE ASSIGNMENT

11

MS -> SS

PAGING RESPONSE

12

SS -> MS

CHANNEL RELEASE

Specific Message Contents

None.

26.6.12.2 Channel release / SDCCH – no L2 ACK

26.6.12.2.1 Conformance requirements

After the expiry of timer T3110 the MS shall not produce any further RF-transmission.

References

3GPP TS 04.08 / 3GPP TS 44.018 subclause 3.4.13.1.

26.6.12.2.2 Test purpose

To verify that the MS is able to correctly release a SDCCH after having received a CHANNEL RELEASE message, even if the SS does not L2 acknowledge the L2 DISC frame.

26.6.12.2.3 Method of test

Initial Conditions

System Simulator:

1 cell, default parameters.

Mobile Station:

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

Specific PICS statements

PIXIT statements

Foreseen Final State of the MS

"Idle, updated", with TMSI allocated.

Test Procedure

The MS is paged and allocated a dedicated channel and the Layer 2 signalling link is established. The SS then sends a CHANNEL RELEASE message, after which the MS shall send at least 2 L2 DISC frames. The SS does not acknowledge any of the L2 DISC frames. After 2 s, the SS verifies for 3 s that the MS has stopped transmission of Layer 2 messages. The MS shall return to the idle state, which is verified through the paging procedure to which the MS shall respond.

Maximum Duration of Test

25 s.

Expected Sequence

Step

Direction

Message

Comments

1

SS -> MS

PAGING REQUEST TYPE 1

2

MS -> SS

CHANNEL REQUEST

Establ. Cause = "Answer to paging".

3

SS -> MS

IMMEDIATE ASSIGNMENT

Channel Type = SDCCH/8.

4

MS -> SS

PAGING RESPONSE

5

SS -> MS

CHANNEL RELEASE

With a valid RR cause value.

6

MS -> SS

DISC

The MS may send the DISC message without performing a layer 2 acknowledgement of the CHANNEL RELEASE message.

The MS shall send at least 2 L2 DISC frames, to which the SS does not respond. After a period of 2 s, the SS verifies for 3 s that the MS does not produce any further Layer 2 messages.

——–

——–

The SS waits 12 s to allow the MS to perform cell reselection.

7

SS -> MS

PAGING REQUEST TYPE 1

8

MS -> SS

CHANNEL REQUEST

Establ. Cause = "Answer to paging".

9

SS -> MS

IMMEDIATE ASSIGNMENT

10

MS -> SS

PAGING RESPONSE

11

SS -> MS

CHANNEL RELEASE

Specific Message Contents

None.

26.6.12.3 Channel release / TCH-F

26.6.12.3.1 Conformance requirements

After the acknowledgement of the Layer 2 disconnection by the network the MS shall not produce any further RF-transmission.

References

3GPP TS 04.08 / 3GPP TS 44.018 subclause 3.4.13.1.

26.6.12.3.2 Test purpose

To verify that the MS is able to correctly release a full-rate TCH after having received a CHANNEL RELEASE message.

26.6.12.3.3 Method of test

Initial Conditions

System Simulator:

1 cell, default parameters.

Mobile Station:

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

Specific PICS statements

PIXIT statements

Foreseen Final State of the MS

"Idle, updated", with TMSI allocated.

Test Procedure

The MS is paged and allocated a dedicated channel and the Layer 2 signalling link is established. The SS then sends a CHANNEL RELEASE message, after which the MS shall initiate a Layer 2 disconnection process on the main signalling link. After the acknowledgement of the Layer 2 disconnection by the SS, the MS shall stop transmission of Layer 2 messages. This is verified for 3 s. The MS shall return to the idle state, which is verified through the paging procedure to which the MS shall respond.

Maximum Duration of Test

20 s.

Expected Sequence

Step

Direction

Message

Comments

1

SS -> MS

PAGING REQUEST TYPE 1

2

MS -> SS

CHANNEL REQUEST

Establ. Cause = "Answer to paging".

3

SS -> MS

IMMEDIATE ASSIGNMENT

Channel Type = "Bm + ACCHs"

4

MS -> SS

PAGING RESPONSE

5

SS -> MS

CHANNEL RELEASE

With a valid RR cause value.

6

MS -> SS

DISC

The MS may send the DISC message without performing a layer 2 acknowledgement of the CHANNEL RELEASE message.

7

SS -> MS

UA

——–

——–

The SS verifies for 3 s that the MS does not produce any Layer 2 messages.

——–

——–

The SS waits 12 s to allow the MS to perform cell reselection.

8

SS -> MS

PAGING REQUEST TYPE 1

9

MS -> SS

CHANNEL REQUEST

Establ. Cause = "Answer to paging".

10

SS -> MS

IMMEDIATE ASSIGNMENT

11

MS -> SS

PAGING RESPONSE

12

SS -> MS

CHANNEL RELEASE

Specific Message Contents

None.

26.6.12.4 Channel release / TCH-F – no L2 ACK

26.6.12.4.1 Conformance requirements

After the expiry of timer T3110 the MS shall not produce any further RF-transmission.

References

3GPP TS 04.08 / 3GPP TS 44.018 subclause 3.4.13.1

26.6.12.4.2 Test purpose

To verify that the MS is able to correctly release a TCH/F after having received a CHANNEL RELEASE message, even if the SS does not L2 acknowledge the L2 DISC frame.

26.6.12.4.3 Method of test

Initial Conditions

System Simulator:

1 cell, default parameters.

Mobile Station:

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

Specific PICS statements

PIXIT statements

Foreseen Final State of the MS

"Idle, updated", with TMSI allocated.

Test Procedure

The MS is paged and allocated a dedicated channel and the Layer 2 signalling link is established. The SS then sends a CHANNEL RELEASE message (with cause "abnormal release, unspecified"), after which the MS shall send at least 2 L2 DISC frames. The SS does not acknowledge any of the L2 DISC frames. After 2 s, the SS verifies for 3 s that the MS has stopped transmission of Layer 2 messages. The MS shall return to the idle state, which is verified through the paging procedure to which the MS shall respond.

Maximum Duration of Test

25 s.

Expected Sequence

Step

Direction

Message

Comments

1

SS -> MS

PAGING REQUEST TYPE 1

2

MS -> SS

CHANNEL REQUEST

Establ. Cause = "Answer to paging".

3

SS -> MS

IMMEDIATE ASSIGNMENT

Channel Type = "Bm + ACCHs".

4

MS -> SS

PAGING RESPONSE

5

SS -> MS

CHANNEL RELEASE

Cause value = "Abnormal release, unspecified".

6

MS -> SS

DISC

The MS may send the DISC message without performing a layer 2 acknowledgement of the CHANNEL RELEASE message.

The MS shall send at least 2 L2 DISC frames, to which the SS does not respond. After a period of 2 s, the SS verifies for 3 s that the MS does not produce any further Layer 2 messages.

The SS waits 12 s to allow the MS to perform cell reselection.

7

SS -> MS

PAGING REQUEST TYPE 1

8

MS -> SS

CHANNEL REQUEST

Establ. Cause = "Answer to paging".

9

SS -> MS

IMMEDIATE ASSIGNMENT

Channel Type = SDCCH/8.

10

MS -> SS

PAGING RESPONSE

11

SS -> MS

CHANNEL RELEASE

Specific Message Contents

None.