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.