26.17 Adaptive Multi Rate Signalling – 8PSK
3GPP51.010-1Mobile Station (MS) conformance specificationPart 1: Conformance specificationTS
26.17.1 Void
26.17.2 Inband Signalling, Uplink Codec Adaptation
26.17.2.1 Conformance Requirement
The MS shall after reception of a Codec Mode Command apply the corresponding codec mode in the uplink direction for the next possible speech frame and no more than three speech frames later.
NOTE: This test is not intended to verify these conformance requirements, but to verify the correctness of the involved layer 1 and layer 3 signalling.
References:
3GPP TS 45.009 subclauses 3.3 and 3.4.
26.17.2.2 Test Purpose
This test is concerned with the link adaptation for AMR uplink and the related inband signalling. The test shall verify that the MS in the uplink direction applies the codec mode indicated by the network transmitted Codec Mode Commands, and that the MS correctly signals the used codec as Codec Mode Indication in the uplink inband signalling.
NOTE: The inband signals are L1 signalling transmitted every speech frame, as defined in 3GPP TS 45.009: In uplink directions Codec Mode Requests and Codec Mode Indications are transmitted alternately, whereas downlink signalling contains of alternately Codec Mode Commands and Codec Mode Indications.
26.17.2.3 Method of Test
Initial Conditions
The MS is "idle updated", with TMSI allocated.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of MS
"Idle, updated", with TMSI allocated.
Test Procedure
a) A mobile originated call is initiated, following the CHANNEL REQUEST received from the MS the SS sends an IMMEDIATE ASSIGNMENT to the MS commanding it to go to a SDCCH. The MS indicates to the SS that it supports the multi-rate speech codec. The SS allocates the MS a O-TCH/AHS and signals the allowed codec subset and adaptation thresholds as part of the ASSIGNMENT COMMAND. DTX shall not be activated. Hopping is activated. The hopping band is centred around an ARFCN in the Mid ARFCN range. The hopping frequencies are chosen from those defined in clause 6.
The following active codec mode subset shall apply:
Codec Mode |
O-TCH/AHS in kbit/s |
CODEC_MODE_1 |
4,75 |
CODEC_MODE_2 |
5,9 |
CODEC_MODE_3 |
7,95 |
CODEC_MODE_4 |
12,2 |
The following decision threshold and hysteresis values in terms of normalized carrier to interference ratio (C/Inorm), shall apply for Codec Mode Command / Request (MC’, MR’):
MC’/MR’ |
THR_MC_Dn(MC’)/ |
THR_MC_Up(MC’)/ |
CODEC_MODE_4 |
16,5 dB |
+ |
CODEC_MODE_3 |
11,5 dB |
18,5 dB |
CODEC_MODE_2 |
6,5 dB |
13,5 dB |
CODEC_MODE_1 |
|
8,5 dB |
b) The SS signals that a new codec is wanted in uplink direction by changing the value of the Codec Mode Command. The MS shall apply the commanded mode in uplink by changing the mode and correspondingly the value of the Codec Mode Indication to match the used codec. This is repeated for all neighbouring mode transitions in the Active Codec Set.
Maximum Duration of Test
2 minutes
Expected Sequence in step b)
Step |
Direction |
Message |
Comments |
1 |
SS->MS |
Codec Mode Command change |
Codec Mode 3 is commanded by inband signalling |
2 |
MS->SS |
Codec Mode Indication change |
Codec Mode Indication shows current active mode in uplink, thus changed when mode changes |
3 |
SS->MS |
Codec Mode Command change |
Codec Mode 2 is commanded by inband signalling |
4 |
MS->SS |
Codec Mode Indication change |
Codec Mode 2 is indicated in inband signalling with first frame using Codec Mode 2 |
5 |
SS->MS |
Codec Mode Command change |
Codec Mode 1 is commanded by changing inband signal |
6 |
MS->SS |
Codec Mode Indication change |
Codec Mode 1 is indicated in inband signalling with first frame using Codec Mode 1. |
7 |
SS->MS |
Codec Mode Command change |
Codec Mode 2 is commanded by changing inband signal |
8 |
MS->SS |
Codec Mode Indication change |
Codec Mode 2 is indicated in inband signalling with first frame using Codec Mode 2. |
9 |
SS->MS |
Codec Mode Command change |
Codec Mode 3 is commanded by changing inband signal |
10 |
MS->SS |
Codec Mode Indication change |
Codec Mode 3 is indicated in inband signalling with first frame using Codec Mode 3. |
11 |
SS->MS |
Codec Mode Command change |
Codec Mode 4 is commanded by changing inband signal |
12 |
MS->SS |
Codec Mode Indication change |
Codec Mode 4 is indicated in inband signalling with first frame using Codec Mode 4 |
Specific Message Contents
ASSIGNMENT COMMAND
Information Element |
Value/remark |
Assignment Command |
In step a) of Test Procedure: codec mode 4 selected (ref: 3GPP TS 44.018 subclause 9.1.2) |
Codec mode commands, downlink inband signalling
Information Element |
Value/remark |
Channel Mode to be used for uplink |
In step a) of Test Procedure: Codec Mode 4 commanded In step 1-2: Codec Mode 3 commanded In step 3-4: Codec Mode 2 commanded In step 5-6: Codec Mode 1 commanded In step 7-8: Codec Mode 2 commanded In step 9-10: Codec Mode 3 commanded In step 11-12: Codec Mode 4 commanded |
Codec mode indications, uplink inband signalling
Information Element |
Value/remark |
Indicating Codec Mode currently used uplink |
In step a) of Test Procedure: Codec Mode 4 indicated In step 1: Codec Mode 4 indicated In step 2-3: Codec Mode 3 indicated In step 4-5: Codec Mode 2 indicated In step 6-7: Codec Mode 1 indicated In step 8-9: Codec Mode 2 indicated In step 10-11: Codec Mode 3 indicated In step 12: Codec Mode 4 indicated |
26.17.3 8-PSK AMR HR / Structured procedures / MS terminated call / early assignment / no initial codec mode
NOTE: this test is derived from the one described in subclause 26.16 and entitled: "Structured procedures / MS terminated call / early assignment / no initial codec mode"
26.17.3.1 Conformance requirement
1) In acceptance to a SETUP message indicating speech, the MS shall indicate and include in the CALL CONFIRMED message all the speech versions that it supports.
2) Upon receipt of the ASSIGNMENT COMMAND message specifying using CHx/HR the Mobile Station continues a mobile terminating call establishment with early assignment of traffic channel:
a) by replying to the ASSIGNMENT command with an ASSIGNMENT COMPLETE message; and
b) by continuing the call establishment by through connecting TCH in both directions if it supports immediate connect or by sending an ALERTING message otherwise.
3) The ASSIGNMENT command will not specify which of the codec modes the MS should use, but allow the handset to select the default codec mode.
4) For speech calls, the mobile station shall attach the user connection at latest when sending the connect message, except if there is no compatible radio resource available at this time. In this case the attachment shall be delayed until such a resource becomes available.
CHx: identifies any of the Channel Codec mode.
HR: half rate channel.
References:
3GPP TS 44.018 subclauses 9.1.2 and 9.1.5.
3GPP TS 45.009 subclause 3.4.
26.17.3.2 Test purpose
1) To verify that, in acceptance to a SETUP message indicating speech, the MS indicates and includes in the CALL CONFIRMED message all the speech versions that it supports.
2) To verify that upon receipt of the ASSIGNMENT COMMAND message specifying using CHx/HR the Mobile Station continues a mobile terminating call establishment with early assignment of traffic channel:
a) by replying to the ASSIGNMENT COMMAND with an ASSIGNMENT COMPLETE message; and
b) by continuing the call establishment by through connecting TCH in both directions if it supports immediate connect or by sending an ALERTING message otherwise.
3) To verify that upon receipt of an ASSIGNMENT COMMAND with no codec mode specified, the MS shall use the default codec mode.
4) To verify that for speech calls, the mobile station shall attach the user connection at latest when sending the connect message, except if there is no compatible radio resource available at this time. In this case the attachment shall be delayed until such a resource becomes available.
26.17.3.3 Method of Test
Initial Conditions
SS 1 cell, default parameters.
MS in MM-state "idle, updated" with valid TMSI and CKSN.
Specific PICS statements:
– Immediate connect supported for all circuit switched basic services.
PIXIT statements:
– Way to indicate alerting.
– Way to make the MS accept an incoming call after alerting.
Foreseen Final State of MS
"Idle, updated", with TMSI allocated.
Test Procedure
The following test is performed for the half rate channel mode of the multi-rate codec:
– A teleservice is selected that is supported by the MS; if the MS supports speech, the selected teleservice is speech. If necessary, the MS is configured for that teleservice.
– The MS is paged and the resulting call is established. Having reached the active state, the MS is made to clear the call.
Maximum Duration of Test
3 minutes
Expected Sequence
This test is repeated for M = 1, 2, 3, 4.
Step |
Direction |
Message |
Comments |
1 |
SS->MS |
PAGING REQUEST TYPE 1 |
Sent on the correct paging sub-channel |
2 |
MS->SS |
CHANNEL REQUEST |
|
3 |
SS->MS |
IMMEDIATE ASSIGNMENT |
|
4 |
MS->SS |
PAGING RESPONSE |
Message is contained in the SABM |
5 |
SS->MS |
AUTHENTICATION REQUEST |
|
6 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
7 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
8 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
9 |
SS |
SS starts ciphering |
|
10 |
SS->MS |
SETUP |
|
11 |
MS->SS |
CALL CONFIRMED |
|
If the MS supports an Immediate connection then branch A applies. If the MS doesn’t support an immediate connection then branch B applies. |
|||
A12 |
MS->SS |
CONNECT |
sent on the old channel |
A13 |
SS->MS |
ASSIGNMENT COMMAND |
SS allocates allowed subset codec modes, but does not identify a mode for immediate operation. |
A14 |
MS->SS |
ASSIGNMENT COMPLETE |
|
B12 |
SS->MS |
ASSIGNMENT COMMAND |
|
B13 |
MS->SS |
ASSIGNMENT COMPLETE |
Sent on the new channel. SS allocates allowed subset codec modes, but does not identify a mode for immediate operation. |
B14 |
MS->SS |
ALERTING |
|
B15 |
MS |
An alerting indication as defined in the PIXIT statement is given by the MS. |
|
B16 |
MS |
The MS is made to accept the call. |
|
B17 |
MS->SS |
CONNECT |
|
18 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the default codec mode specified. |
|
19 |
SS->MS |
CONNECT ACK |
|
20 |
MS |
The MS is made to release the call. |
|
21 |
MS->SS |
DISCONNECT |
|
22 |
SS->MS |
RELEASE |
|
23 |
MS->SS |
RELEASE COMPLETE |
|
24 |
SS->MS |
CHANNEL RELEASE |
The main signalling link is released. |
Specific Message Content
M = 1
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 0 1 codec mode specified |
M = 2
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 0 2 codec modes and threshold values specified |
M = 3
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 0 3 codec modes and threshold values specified |
M = 4
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 0 4 codec modes and threshold values specified |
26.17.3a 8-PSK AMR HR / Structured procedures / MS terminated call / early assignment / specified initial codec mode
NOTE: this test is derived from the one described in subclause 26.16.3a and entitled: "Structured procedures / MS terminated call / early assignment / specified initial codec mode"
26.17.3a.1 Conformance requirement
1) In acceptance to a SETUP message indicating speech, the MS shall indicate and include in the CALL CONFIRMED message all the speech versions that it supports.
2) Upon receipt of the ASSIGNMENT COMMAND message specifying using CHx/HR the Mobile Station continues a mobile terminating call establishment with early assignment of traffic channel:
a) by replying to the ASSIGNMENT command with an ASSIGNMENT COMPLETE message; and
b) by continuing the call establishment by through connecting TCH in both directions if it supports immediate connect or by sending an ALERTING message otherwise.
3) The ASSIGNMENT COMMAND will specify the subset of codec modes that the MS is allowed to use for the call, the thresholds and the initial codec mode for immediate use by the MS.
4) For speech calls, the mobile station shall attach the user connection at latest when sending the connect message, except if there is no compatible radio resource available at this time. In this case the attachment shall be delayed until such a resource becomes available.
CHx: identifies any of the Channel Codec mode.
HR: half rate channel.
References:
3GPP TS 44.018 subclauses 9.12 and 9.1.5.
3GPP TS 45.009 subclause 3.4.
26.17.3a.2 Test purpose
1) To verify that, in acceptance to a SETUP message indicating speech, the MS indicates and includes in the CALL CONFIRMED message all the speech versions that it supports.
2) To verify that upon receipt of the ASSIGNMENT COMMAND message specifying using CHx/HR the Mobile Station continues a mobile terminating call establishment with early assignment of traffic channel:
a) by replying to the ASSIGNMENT command with an ASSIGNMENT COMPLETE message; and
b) by continuing the call establishment by through connecting TCH in both directions if it supports immediate connect or by sending an ALERTING message otherwise.
3) To verify that upon receipt of an ASSIGNMENT COMMAND with codec mode specified, the MS shall use that specified codec mode.
4) To verify that for speech calls, the mobile station shall attach the user connection at latest when sending the connect message, except if there is no compatible radio resource available at this time. In this case the attachment shall be delayed until such a resource becomes available.
26.17.3a.3 Method of Test
Initial Conditions
SS 1 cell, default parameters
MS in MM-state "idle, updated" with valid TMSI and CKSN
Specific PICS statements:
– Immediate connect supported for all circuit switched basic services.
PIXIT statements:
– Way to indicate alerting.
– Way to make the MS accept an incoming call after alerting.
Foreseen Final State of MS
"Idle, updated", with TMSI allocated.
Test Procedure
The following test is performed for the half rate channel mode of the multi-rate codec:
A teleservice is selected that is supported by the MS; if the MS supports speech, the selected teleservice is speech. If necessary, the MS is configured for that teleservice.
The MS is paged and the resulting call is established. Having reached the active state, the MS is made to clear the call.
Maximum Duration of Test
3 minutes
Expected Sequence
This test is repeated for M=1,2,3,4.
Step |
Direction |
Message |
Comments |
1 |
SS->MS |
PAGING REQUEST TYPE 1 |
Sent on the correct paging sub-channel |
2 |
MS->SS |
CHANNEL REQUEST |
|
3 |
SS->MS |
IMMEDIATE ASSIGNMENT |
|
4 |
MS->SS |
PAGING RESPONSE |
Message is contained in the SABM |
5 |
SS->MS |
AUTHENTICATION REQUEST |
|
6 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
7 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
8 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
9 |
SS |
SS starts ciphering |
|
10 |
SS->MS |
SETUP |
|
11 |
MS->SS |
CALL CONFIRMED |
|
If the MS supports an Immediate connection then branch A applies. If the MS doesn’t support an immediate connection then branch B applies. |
|||
A12 |
MS->SS |
CONNECT |
sent on the old channel |
A13 |
SS->MS |
ASSIGNMENT COMMAND |
SS allocates allowed subset codec modes and identifies a mode for immediate operation. |
A14 |
MS->SS |
ASSIGNMENT COMPLETE |
|
B12 |
SS->MS |
ASSIGNMENT COMMAND |
|
B13 |
MS->SS |
ASSIGNMENT COMPLETE |
SS allocates allowed subset codec modes and identifies a mode for immediate operation. |
B14 |
MS->SS |
ALERTING |
|
B15 |
MS |
An alerting indication as defined in the PIXIT statement is given by the MS. |
|
B16 |
MS |
The MS is made to accept the call. |
|
B17 |
MS->SS |
CONNECT |
|
18 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
19 |
SS->MS |
CONNECT ACK |
|
20 |
MS |
The MS is made to release the call. |
|
21 |
MS->SS |
DISCONNECT |
|
22 |
SS->MS |
RELEASE |
|
23 |
MS->SS |
RELEASE COMPLETE |
|
24 |
SS->MS |
CHANNEL RELEASE |
The main signalling link is released. |
Specific Message Content
M = 1
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 1 Start Mode specified 1 codec mode specified |
M = 2
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 1 Start Mode specified 2 codec modes and threshold vales specified |
M = 3
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 1 Start Mode specified 3 codec modes and threshold vales specified |
M = 4
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 1 Start Mode specified 4 codec modes and threshold vales specified |
26.17.4 8-PSK AMR HR / Structured procedures / MS originated call / late assignment / specified initial codec mode
NOTE: This test is derived from the one described in subclause 26.16.4 and entitled: "Structured procedures / MS originated call / late assignment / specified initial codec mode".
26.17.4.1 Conformance requirement
1) The MS shall indicate and include in the mobile originating SETUP for speech call all the speech versions that it supports.
2) Upon receipt of the ASSIGNMENT COMMAND message using half rate speech version 6, the Mobile Station starts a normal channel assignment procedure. It means that the MS initiates a local end release of link layer connections, disconnects the physical channels, commands the switching to the assigned channels and initiates the establishment of lower layer connections (this includes the activation of the channels, their connection and the establishment of the data links). After the main signalling link is successfully established, the MS returns an ASSIGNMENT COMPLETE message, specifying cause ‘normal event’, to the network on the main DCCH.
References:
3GPP TS 44.018 subclauses 9.12 and 9.1.5.
3GPP TS 45.009 subclause 3.4.
26.17.4.2 Test purpose
1) To verify that the MS indicates and includes in the mobile originating SETUP for speech call all the speech versions that it supports.
2) To verify that subsequently after receipt of an IMMEDIATE ASSIGNMENT message allocating an SDCCH, after completion of establishment of the main signalling link, after having sent a CM SERVICE REQUEST message, after having successfully performed authentication and cipher mode setting procedures, after having sent a SETUP message, after having received a CALL PROCEEDING message followed by an ALERTING message and an ASSIGNMENT COMMAND message allocating using half rate speech version 6, the MS sends an ASSIGNMENT COMPLETE message. The ASSIGNMENT COMMAND message will also identify which codec mode the MS is allowed to use for the call, the threshold values and the initial codec mode for immediate use.
26.17.4.3 Method of Test
Initial Conditions
SS 1 cell, default parameters.
MS in MM-state "idle, updated" with valid TMSI and CKSN.
Specific PICS statements:
–
PIXIT statements:
– Way to indicate alerting.
– Way to make the MS accept an incoming call after alerting.
Foreseen Final State of MS
The MS has a MO call in state U10, "active".
Test Procedure
The following test is performed for the half rate channel mode of the multi-rate codec.
The MS is made to initiate a speech call. The call is established with a late assignment.
Maximum Duration of Test
3 minutes.
Expected Sequence
This test is repeated for M = 1, 2, 3, 4.
Step |
Direction |
Message |
Comments |
1 |
MS |
The "called number" is entered |
|
2 |
MS->SS |
CHANNEL REQUEST |
|
3 |
SS->MS |
IMMEDIATE ASSIGNMENT |
|
4 |
MS->SS |
CM SERVICE REQUEST |
Message is contained in SABM |
5 |
SS->MS |
AUTHENTICATION REQUEST |
|
6 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
7 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
8 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
9 |
SS |
SS starts ciphering |
|
10 |
MS->SS |
SETUP |
The MS indicates it supports the HR speech version 6. |
11 |
SS->MS |
CALL PROCEEDING |
|
12 |
SS->MS |
ALERTING |
|
13 |
MS |
An alerting indication as defined in the PIXIT statement is given by the MS. |
|
14 |
SS->MS |
ASSIGNMENT COMMAND |
SS allocates allowed subset codec modes, but does identifies a mode for immediate operation. |
15 |
MS->SS |
ASSIGNMENT COMPLETE |
|
16 |
SS->MS |
CONNECT |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
MS->SS |
CONNECT ACK |
Specific Message Content
M = 1
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 1 Start mode specified 1 codec mode specified |
M = 2
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 1 Start mode specified 2 codec modes and threshold vales specified |
M = 3
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 1 Start mode specified 3 codec modes and threshold vales specified |
M = 4
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 1 Start mode specified 4 codec modes and threshold vales specified |
26.17.4a 8-PSK AMR HR / Structured procedures / MS originated call / late assignment / no initial codec mode
NOTE: This test is derived from the one described in subclause 26.16.4a and entitled: "Structured procedures / MS originated call / late assignment / no initial codec mode".
26.17.4a.1 Conformance requirement
1) The MS shall indicate and include in the mobile originating SETUP for speech call all the speech versions that it supports.
2) Upon receipt of the ASSIGNMENT COMMAND message using half rate speech version 6, the Mobile Station starts a normal channel assignment procedure. It means that the MS initiates a local end release of link layer connections, disconnects the physical channels, commands the switching to the assigned channels and initiates the establishment of lower layer connections (this includes the activation of the channels, their connection and the establishment of the data links). After the main signalling link is successfully established, the MS returns an ASSIGNMENT COMPLETE message, specifying cause ‘normal event’, to the network on the main DCCH. The ASSIGNMENT COMMAND message will also specify the subset of codec modes that the MS is allowed to use for the call and the threshold values. The ASSIGNMENT COMMAND will not specify the initial codec mode but will, rather, allow the MS to select the default codec mode.
– If the Initial Codec Mode is not signalled, then the default Initial Codec Mode is given by the following implicit rule. If the Active Codec Set contains:
1 mode then this shall be the Initial Codec Mode.
2 or 3 modes then the Initial Codec mode shall be the most robust mode of the set (with lowest bit rate).
4 modes then the Initial Codec Mode shall be the second most robust mode of the set (with second lowest bit rate. If the Active Codec Set is changed during the call, then this default Initial Codec Mode shall used until an other ICM is explicitly signalled.
References
3GPP TS 44.018 subclauses 9.12 and 9.1.5.
3GPP TS 45.009 subclause 3.4.
26.17.4a.2 Test purpose
1) To verify that the MS indicates and includes in the mobile originating SETUP for speech call all the speech versions that it supports.
2) To verify that subsequently after receipt of an IMMEDIATE ASSIGNMENT message allocating an SDCCH, after completion of establishment of the main signalling link, after having sent a CM SERVICE REQUEST message, after having successfully performed authentication and cipher mode setting procedures, after having sent a SETUP message, after having received a CALL PROCEEDING message followed by an ALERTING message and an ASSIGNMENT COMMAND message allocating using speech half rate speech version 6, the MS sends an ASSIGNMENT COMPLETE message. The ASSIGNMENT COMMAND message will also specify the subset of codec modes that the MS is allowed to use for the call and the threshold values. The ASSIGNMENT COMMAND will not specify the initial codec mode but will, rather, allow the MS to select the default codec mode.
26.17.4a.3 Method of Test
Initial Conditions
SS 1 cell, default parameters
MS in MM-state "idle, updated" with valid TMSI and CKSN
Specific PICS statements:
–
PIXIT statements:
– Way to indicate alerting.
– Way to make the MS accept an incoming call after alerting.
Foreseen Final State of MS
The MS has a MO call in state U10, "active".
Test Procedure
The following test is performed for the half rate channel mode of the multi-rate codec.
The MS is made to initiate a speech call. The call is established with a late assignment.
Maximum Duration of Test
3 minutes
Expected Sequence
This test is repeated for M=1,2,3,4.
Step |
Direction |
Message |
Comments |
1 |
MS |
The "called number" is entered |
|
2 |
MS->SS |
CHANNEL REQUEST |
|
3 |
SS->MS |
IMMEDIATE ASSIGNMENT |
|
4 |
MS->SS |
CM SERVICE REQUEST |
Message is contained in SABM |
5 |
SS->MS |
AUTHENTICATION REQUEST |
|
6 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
7 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
8 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
9 |
SS |
SS starts ciphering |
|
10 |
MS->SS |
SETUP |
The MS indicates support of the HR speech version 6. |
12 |
SS->MS |
CALL PROCEEDING |
|
13 |
SS->MS |
ALERTING |
|
14 |
MS |
An alerting indication as defined in the PIXIT statement is given by the MS. |
|
15 |
SS->MS |
ASSIGNMENT COMMAND |
SS allocates allowed subset of codec modes and thresholds, but does not identify a mode for immediate operation. |
16 |
MS->SS |
ASSIGNMENT COMPLETE |
|
17 |
SS->MS |
CONNECT |
|
18 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified (M=1 CMI=0, M=2 CMI=0, M=3 CMI=0, M=4 CMI=1). |
|
19 |
MS->SS |
CONNECT ACK |
Specific Message Content
M = 1
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 0 1 codec mode specified |
M = 2
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 0 2 codec modes and threshold vales specified |
M = 3
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 0 3 codec modes and threshold vales specified |
M =4
Assignment Command
Information Element |
value/remark |
Channel mode |
|
Mode |
Half rate speech version 6 |
Multi-Rate configuration |
ICMI = 0 4 codec modes and threshold vales specified |
26.17.5 Void
26.17.6 8-PSK AMR HR / Structured procedures / emergency call
NOTE: this test is derived from subclause 26.16.6 – Structured procedures / emergency call.
26.17.6.1 Conformance requirement
1) For R97/R98 MS: The MS in the "idle, updated" state, after a successful location update, the number 112 (for GSM 900 and DCS 1800 MS), or 911 (for GSM 710, GSM 750, T_GSM 810, GSM 850 and PCS 1 900 MS in USA and Canada), or 08 (for GSM 710, GSM 750, T_GSM 810, GSM 850 and PCS 1 900 MS in Mexico) has been entered by user, shall send a CHANNEL REQUEST message with correct establishment cause ("emergency call").
For R99 and later MS: When a SIM/USIM containing stored emergency numbers is present, those numbers are identified as emergency numbers. As an optional requirement, the ME shall also identify 112 and 911 as emergency numbers irrespective of whether these are stored in the SIM/USIM. Any other emergency numbers stored in the ME shall be ignored.
When no emergency numbers are stored within the SIM the following numbers shall be stored in the ME for use as emergency numbers: 112, and 911.
When no emergency numbers are stored within the USIM the following numbers shall be stored in the ME for use as emergency numbers: 112, and 911.
2) After assignment of a dedicated channel the first layer message sent by the MS on the assigned dedicated channel shall be a CM SERVICE REQUEST message specifying the correct CKSN and TMSI , with CM Service Type "emergency call establishment".
3) Authentication and cipher mode setting shall be performed successfully.
4) After cipher mode setting acceptance by the network, the MS shall send an EMERGENCY SETUP message.
5) The AMR mobile station shall accept channel assignment to an 8-PSK AMR half rate channel and also select the correct codec mode. The call shall be set up using the 8-PSK AMR HR codec.
6) After receipt of a CONNECT ACKNOWLEDGE message during correct establishment of the emergency call the O-TCH/AHS shall be through connected in both directions if an appropriate channel is available.
7) The call shall be cleared correctly.
References:
3GPP TS 44.018 subclauses 3.4.3.1, 3.4.6, 9.1.2 and 9.1.5.
3GPP TS 02.30, clause 4.
3GPP TS 22.101, clause 8.
26.17.6.2 Test purpose
1) To verify that a R97/R98 MS supporting speech in the MM state "idle, updated", when made to call the number 112 (for GSM 900 and DCS 1800 MS), or 911 (for GSM 710, GSM 750, T_GSM 810, GSM 850 and PCS 1 900 MS in USA and Canada), or 08 (for GSM 710, GSM 750, T_GSM 810, GSM 850 and PCS 1 900 MS in Mexico), sends a CHANNEL REQUEST message with establishment cause "emergency call".
To verify that a R99 and later MS supporting speech in the MM state "idle, updated", when made to call the number 112 or 911, sends a CHANNEL REQUEST message with establishment cause "emergency call".
2) To verify that after assignment of a dedicated channel the first layer message sent by the MS on the assigned dedicated channel is a CM SERVICE REQUEST message specifying the correct CKSN and TMSI, with CM Service Type "emergency call establishment".
3) To verify that authentication and cipher mode setting are performed successfully.
4) To verify that after cipher mode setting acceptance by the SS, the MS sends an EMERGENCY SETUP message.
5) To verify that the AMR mobile station shall accept channel assignment to a O-TCH/AHS and also select the correct codec mode. The call shall be set up using the 8-PSK AMR HR codec.
6) To verify that subsequently the MS has through connected the TCH in both directions.
7) To verify the call is cleared correctly.
26.17.6.3 Method of Test
Initial Conditions
SS: 1 cell default parameters.
MS: The MS is in the MM-state "idle, updated" with valid TMSI and CKSN.
Foreseen Final State of the MS
The MS is in the MM-state "idle, updated" with valid TMSI and CKSN.
Specific PICS statements:
–
PIXIT statements:
–
Test Procedure
The MS is made to initiate an emergency call. The call is established with late assignment. Having reached the active state, the call is cleared by the SS.
Maximum Duration of Test
3 minutes.
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
MS |
The appropriate emergency call number is entered |
|
2 |
MS->SS |
CHANNEL REQUEST |
Establishment cause is emergency call establishment. |
3 |
SS->MS |
IMMEDIATE ASSIGNMENT |
|
4 |
MS->SS |
CM SERVICE REQUEST |
Message is contained in SABM. The CM service type IE indicates "emergency call establishment". |
5 |
SS->MS |
AUTHENTICATION REQUEST |
|
6 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
7 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
8 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
9 |
SS |
SS starts ciphering |
|
10 |
MS->SS |
EMERGENCY SETUP |
The MS indicates which speech it supports. |
11 |
SS->MS |
CALL PROCEEDING |
|
12 |
SS->MS |
ALERTING |
|
13 |
SS->MS |
ASSIGNMENT COMMAND |
See specific message contents. |
14 |
MS->SS |
ASSIGNMENT COMPLETE |
|
15 |
SS->MS |
CONNECT |
|
16 |
MS->SS |
CONNECT ACK |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
DISCONNECT |
|
19 |
MS->SS |
RELEASE |
|
20 |
SS->MS |
RELEASE COMPLETE |
|
21 |
SS->MS |
CHANNEL RELEASE |
Specific Message Contents:
Assignment Command
Information Element |
value/remark |
Channel description |
O-TCH/AHS |
Channel mode |
|
– Mode |
Half rate speech version 6 |
26.17.7 Void
26.17.8 Void
26.17.9 8-PSK AMR HR / RATSCCH Protocol
26.17.9.1 AMR Configuration Change (normal)
26.17.9.1.1 Conformance requirements
The AMR_CONFIG_REQ message may be sent by the BTS during a call to change the AMR configuration on the radio interface without interruption of the speech transmission.
The ACK_OK message serves as an acknowledgement that a RATSCCH REQ message has been detected, correctly decoded (no CRC error) and that it is defined for the Addressee. It defines the exact activation time in direction from Addressee to Initiator.
Reference
3GPP TS 45.009 sub-clauses: 3.2.2.3.1, 3.2.2.3.5
26.17.9.1.2 Test purpose
This test will verify that the MS is able to handle a properly formatted AMR_CONFIG_REQ message.
26.17.9.1.3 Method of test
Initial Conditions
System Simulator:
1 cell with default parameters
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
Idle Updated, TMSI allocated and camped on cell A.
Test Procedure
This sequence is performed for execution counter, k = 1, 2.
When k = 1, DTX is not used:
1) User initiates a Mobile Originated call.
2) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
3) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
4) The call is maintained during a programmable time without variation of RxLev /RxQual.
5) The SS shall send a properly formatted AMR_CONFIG_REQ message during the call at a programmable time.
6) The MS answers with a ACK_OK message within 3 speech frames
7) The network initiates the call release.
When k = 2, DTX is used:
1) In the serving cell, the DTX indicator is set to "MS shall use discontinuous transmission".
2) User initiates a Mobile Originated call.
3) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
4) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
5) The call is maintained during a programmable time without variation of RxLev /RxQual.
6) The SS shall send a properly formatted AMR_CONFIG_REQ message during the call at a programmable time.
7) The MS answers with a ACK_OK message within 3 speech frames.
8) The network initiates the call release.
Maximum Duration of Test
5 minutes
Expected Sequence
When k=1:
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
MS->SS |
Setup |
MS indicates supported speech versions |
11 |
SS->MS |
Call Proceeding |
|
12 |
SS->MS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
See specific message contents. |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
AMR_CONFIG_REQ |
See specific message contents. |
19 |
MS->SS |
ACK_OK |
Message must be received within 3 speech frames |
20 |
SS->MS |
Disconnect |
|
21 |
MS->SS |
Release |
|
22 |
SS->MS |
Release Complete |
|
23 |
SS->MS |
Channel Release |
When k=2:
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
MS->SS |
Setup |
MS indicates supported speech versions |
11 |
SS->MS |
Call Proceeding |
|
12 |
SS->MS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
See specific message contents. |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
AMR_CONFIG_REQ |
Using DTX mode |
19 |
MS->SS |
ACK_OK |
Message must be received within 3 speech frames |
20 |
SS->MS |
Disconnect |
|
21 |
MS->SS |
Release |
|
22 |
SS->MS |
Release Complete |
|
23 |
SS->MS |
Channel Release |
Specific Message Contents
ASSIGNMENT COMMAND
Information Element |
value/remarks |
Channel description |
O-TCH/AHS |
Mode of the first channel – Mode |
Half rate version 6 |
AMR_CONFIG_REQ
Information Element |
value/remarks |
ICM |
CODEC_MODE_1 |
ACS |
2 codec modes |
HYST2 |
Not defined (set to all 1s) |
THRESH2 |
Not defined (set to all 1s) |
HYST1 |
2 dB |
THRESH1 |
12.5 dB |
26.17.9.2 AMR Configuration Change (abnormal)
26.17.9.2.1 Conformance requirements
The AMR_CONFIG_REQ message may be sent by the BTS during a call to change the AMR configuration on the radio interface without interruption of the speech transmission.
The ACK_ERR message serves as a negative acknowledgement that a RATSCCH REQ message has been detected, i.e. the RATSCCH pattern was detected, but could not be decoded correctly (CRC error), or its content is not understandable by the addressee.
Reference:
3GPP TS 45.009 sub-clauses: 3.2.2.3.2, 3.2.2.3.5
26.17.9.2.2 Test purpose
This test will verify that the MS is able to handle an improperly formatted AMR_CONFIG_REQ message.
26.17.9.2.3 Method of test
Initial Conditions
System Simulator:
1 cell with default parameters
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
Idle Updated, TMSI allocated and camped on cell A.
Test Procedure
1) User initiates a Mobile Originated call.
2) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
3) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
4) The call is maintained during a programmable time without variation of RxLev /RxQual.
5) The SS shall send an AMR_CONFIG_REQ message, with an incorrect CRC, during the call at a programmable time.
6) The MS answers with a ACK_ERR message within 3 speech frames
7) The network initiates the call release.
Maximum Duration of Test
5 minutes
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
MS->SS |
Setup |
MS indicates supported speech versions |
11 |
SS->MS |
Call Proceeding |
|
12 |
SS->MS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
See specific message contents. |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
AMR_CONFIG_REQ |
Message contains an incorrect CRC |
19 |
MS->SS |
ACK_ERR |
Message must be received within 3 speech frames |
20 |
SS->MS |
Disconnect |
|
21 |
MS->22 |
Release |
|
22 |
SS->MS |
Release Complete |
|
23 |
SS->MS |
Channel Release |
Specific Message Contents
ASSIGNMENT COMMAND
Information Element |
value/remarks |
Channel description |
O-TCH/AHS |
Mode of the first channel – Mode |
Half rate version 6 |
AMR_CONFIG_REQ
Information Element |
value/remarks |
ICM |
CODEC_MODE_1 |
ACS |
2 codec modes |
HYST2 |
Not defined (set to all 1s) |
THRESH2 |
Not defined (set to all 1s) |
HYST1 |
2 dB |
THRESH1 |
12.5 dB |
26.17.9.3 Codec Mode Phase Change (normal)
26.17.9.3.1 Conformance requirements
The CMI_PHASE_REQ message may be sent by the BTS to change the phase of the Codec Mode Indication in downlink.
The ACK_OK message serves as an acknowledgement that a RATSCCH REQ message has been detected, correctly decoded (no CRC error) and that it is defined for the Addressee. It defines the exact activation time in direction from Addressee to Initiator.
Reference:
3GPP TS 45.009 sub-clauses: 3.2.2.3.1, 3.2.2.3.4
26.17.9.3.2 Test purpose
This test will verify that the MS can correctly handle a properly formatted CMI_PHASE_REQ message.
26.17.9.3.3 Method of test
Initial Conditions
System Simulator:
1 cell with default parameters
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
Idle Updated, TMSI allocated and camped on cell A.
Test Procedure
1) User initiates a Mobile Originated call.
2) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
3) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
4) The call is maintained during a programmable time without variation of RxLev /RxQual.
5) The SS shall send the CMI_PHASE_REQ message during the call at a programmable time. The CMI_PHASE_REQ shall be sent either in place of a "CMI" speech frame, or in place of a "CMC" speech frame, to cover both kinds of changes.
6) The MS answers with a ACK_OK message within 3 speech frames.
7) The downlink CMI phase is changed (or not) according to the CMI_PHASE_REQ message starting with speech frame N+12.
8) The network initiates the call release.
Maximum Duration of Test
5 minutes
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
MS->SS |
Setup |
MS indicates supported speech versions |
11 |
SS->MS |
Call Proceeding |
|
12 |
SS->MS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
See specific message contents. |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
CMI_PHASE_REQ |
See specific message contents. |
19 |
MS->SS |
ACK_OK |
Message must be received within 3 speech frames |
20 |
SS->MS |
Disconnect |
|
21 |
MS->SS |
Release |
|
22 |
SS->MS |
Release Complete |
|
23 |
SS->MS |
Channel Release |
Specific Message Contents
ASSIGNMENT COMMAND
Information Element |
value/remarks |
Channel description |
O-TCH/AHS |
Mode of the first channel – Mode |
Half rate version 6 |
CMI_PHASE_REQ
Information Element |
value/remarks |
CMIP |
1 (default) |
26.17.9.4 Codec Mode Phase Change (abnormal)
26.17.9.4.1 Conformance requirements
The CMI_PHASE_REQ message may be sent by the BTS to change the phase of the Codec Mode Indication in downlink.
The ACK_ERR message serves as a negative acknowledgement that a RATSCCH REQ message has been detected, i.e. the RATSCCH pattern was detected, but could not be decoded correctly (CRC error), or its content is not understandable by the addressee.
Reference
3GPP TS 45.009 sub-clauses: 3.2.2.3.2, 3.2.2.3.4
26.17.9.4.2 Test purpose
This test will verify that the MS can correctly handle an improperly formatted CMI_PHASE_REQ message.
26.17.9.4.3 Method of test
Initial Conditions
System Simulator:
1 cell with default parameters
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
Idle Updated, TMSI allocated and camped on cell A.
Test Procedure
1) User initiates a Mobile Originated call.
2) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
3) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
4) The call is maintained during a programmable time without variation of RxLev /RxQual.
5) The SS shall send the CMI_PHASE_REQ message, with an incorrect CRC, during the call at a programmable time. The CMI_PHASE_REQ shall be sent either in place of a "CMI" speech frame, or in place of a "CMC" speech frame, to cover both kinds of changes.
6) The MS answers with a ACK_ERR message within 3 speech frames.
7) The network initiates the call release.
Maximum Duration of Test
5 minutes
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
MS->SS |
Setup |
MS indicates supported speech versions |
11 |
SS->MS |
Call Proceeding |
|
12 |
SS->MS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
See specific message contents. |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
CMI_PHASE_REQ |
Message contains an incorrect CRC |
19 |
MS->SS |
ACK_ERR |
Message must be received within 3 speech frames |
20 |
SS->MS |
Disconnect |
|
21 |
MS->SS |
Release |
|
22 |
SS->MS |
Release Complete |
|
23 |
SS->MS |
Channel Release |
Specific Message Contents
ASSIGNMENT COMMAND
Information Element |
value/remarks |
Channel description |
O-TCH/AHS |
Mode of the first channel – Mode |
Half rate version 6 |
CMI_PHASE_REQ
Information Element |
value/remarks |
CMIP |
1 (default) |
26.17.9.5 Threshold Change (normal)
26.17.9.5.1 Conformance requirements
The THRESH_REQ message may be sent by the BTS to change the thresholds in the DL Mode Request Generator.
The ACK_OK message serves as an acknowledgement that a RATSCCH REQ message has been detected, correctly decoded (no CRC error) and that it is defined for the Addressee. It defines the exact activation time in direction from Addressee to Initiator.
Reference:
3GPP TS 45.009 sub-clauses: 3.2.2.3.1, 3.2.2.3.6
26.17.9.5.2 Test purpose
This test will verify that an RATSCCH capable MS is able to handle a properly formatted THRESH_REQ message
26.17.9.5.3 Method of test
Initial Conditions
System Simulator:
1 cell with default parameters
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
Idle Updated, TMSI allocated and camped on cell A.
Test Procedure
1) User initiates a Mobile Originated call.
2) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
3) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
4) The call is maintained during a programmable time without variation of RxLev /RxQual.
5) The SS shall send a properly formatted THRESH_REQ message during the call at a programmable time.
6) The MS answers with a ACK_OK message within 3 speech frames
7) The network initiates the call release.
Maximum Duration of Test
5 minutes
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
MS->SS |
Setup |
MS indicates supported speech versions |
11 |
SS->MS |
Call Proceeding |
|
12 |
SS->MS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
See specific message contents. |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
THRESH_REQ |
See specific message contents. |
19 |
MS->SS |
ACK_OK |
Message must be received within 3 speech frames |
20 |
SS->MS |
Disconnect |
|
21 |
MS->SS |
Release |
|
22 |
SS->MS |
Release Complete |
|
23 |
SS->MS |
Channel Release |
Specific Message Contents
ASSIGNMENT COMMAND
Information Element |
value/remarks |
Channel description |
O-TCH/AHS |
Mode of the first channel – Mode |
Half rate version 6 |
Multi-Rate configuration |
2 codec modes specified |
THRESH_REQ
Information Element |
value/remarks |
HYST3 |
Not defined (set to all 1s) |
THRESH3 |
Not defined (set to all 1s) |
HYST2 |
Not defined (set to all 1s) |
THRESH2 |
Not defined (set to all 1s) |
HYST1 |
2 dB |
THRESH1 |
12.5 dB |
26.17.9.6 Threshold Change (abnormal)
26.17.9.6.1 Conformance requirements
The THRESH_REQ message may be sent by the BTS to change the thresholds in the DL Mode Request Generator.
The ACK_ERR message serves as a negative acknowledgement that a RATSCCH REQ message has been detected, i.e. the RATSCCH pattern was detected, but could not be decoded correctly (CRC error), or its content is not understandable by the addressee.
Reference:
3GPP TS 45.009 sub-clauses: 3.2.2.3.2, 3.2.2.3.6
26.17.9.6.2 Test purpose
This test will verify that an RATSCCH capable MS is able to handle an improperly formatted THRESH_REQ message.
26.17.9.6.3 Method of test
Initial Conditions
System Simulator:
1 cell with default parameters
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
Idle Updated, TMSI allocated and camped on cell A.
Test Procedure
1) User initiates a Mobile Originated call.
2) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
3) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
4) The call is maintained during a programmable time without variation of RxLev /RxQual.
5) The SS shall send an improperly formatted THRESH_REQ message, with an incorrect CRC, during the call at a programmable time.
6) The MS answers with a ACK_ERR message within 3 speech frames
7) The network initiates the call release.
Maximum Duration of Test
5 minutes
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
MS->SS |
Setup |
MS indicates supported speech versions |
11 |
SS->MS |
Call Proceeding |
|
12 |
SS->MS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
See specific message contents. |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
THRESH_REQ |
Message contains an incorrect CRC |
19 |
MS->SS |
ACK_ERR |
Message must be received within 3 speech frames |
20 |
SS->MS |
Disconnect |
|
21 |
MS->SS |
Release |
|
22 |
SS->MS |
Release Complete |
|
23 |
SS->MS |
Channel Release |
Specific Message Contents
ASSIGNMENT COMMAND
Information Element |
value/remarks |
Channel description |
O-TCH/AHS |
Mode of the first channel – Mode |
Half rate version 6 |
THRESH_REQ
Information Element |
value/remarks |
HYST3 |
Not defined (set to all 1s) |
THRESH3 |
Not defined (set to all 1s) |
HYST2 |
Not defined (set to all 1s) |
THRESH2 |
Not defined (set to all 1s) |
HYST1 |
2 dB |
THRESH1 |
12.5 dB |
26.17.9.7 Unknown RATSCCH REQ Message
26.17.9.7.1 Conformance requirements
The ACK_UNKNOWN message serves as an acknowledgement that a RATSCCH REQ message has been detected and correctly decoded, but was unknown to the Addressee.
Reference:
3GPP TS 45.009 sub-clause: 3.2.2.3.3
26.17.9.7.2 Test purpose
This test will verify that the MS can correctly handle an unknown RATSCCH REQ message.
26.17.9.7.3 Method of test
Initial Conditions
System Simulator:
1 cell with default parameters
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
Idle Updated, TMSI allocated and camped on cell A.
Test Procedure
1) User initiates a Mobile Originated call.
2) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
3) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
4) The call is maintained during a programmable time without variation of RxLev /RxQual.
5) The SS shall send an unknown RATSCCH_REQ message, with message content as all zeros, during the call at a programmable time.
6) The MS answers with a ACK_UNKNOWN message within 3 speech frames
7) The network initiates the call release.
Maximum Duration of Test
5 minutes
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
MS->SS |
Setup |
MS indicates supported speech versions |
11 |
SS->MS |
Call Proceeding |
|
12 |
SS->MS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
See specific message contents. |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
Unknown RATSCCH message |
Message contents all 0’s |
19 |
MS->SS |
ACK_UNKNOWN |
Message must be received within 3 speech frames |
20 |
SS->MS |
Disconnect |
|
21 |
MS->SS |
Release |
|
22 |
SS->MS |
Release Complete |
|
23 |
SS->MS |
Channel Release |
Specific Message Contents
ASSIGNMENT COMMAND
Information Element |
value/remarks |
Channel description |
O-TCH/AHS |
Mode of the first channel – Mode |
Half rate version 6 |
RATSCCH_REQ
Information Element |
value/remarks |
all bits |
0 |
26.17.9.8 Ignore subsequent REQ prior to expiry of REQ_Activation counter
26.17.9.8.1 Conformance requirements
If another REQ message is received by the MS before the REQ_Activation counter has elapsed, the MS shall ignore the message.
Reference:
3GPP TS 45.009 sub-clause: 3.2.2.2
26.17.9.8.2 Test purpose
This test will verify that the MS ignores a REQ message which is received before the REQ_Activation counter has elapsed. The test will verify that both the following conditions are satisfied:
– the MS ignores a subsequent REQ message received after it has sent the ACK_OK but before the REQ_Activation counter has elapsed.
26.17.9.8.3 Method of test
Initial Conditions
System Simulator:
1 cell with default parameters
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
Idle Updated, TMSI allocated and camped on cell A.
Test Procedure
1) User initiates a Mobile Originated call.
2) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
3) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
4) The call is maintained during a programmable time without variation of RxLev /RxQual.
5) The SS shall send an AMR_CONFIG_REQ message during the call at a programmable time.
6) The MS answers the AMR_CONFIG_REQ with an ACK_OK message within 3 speech frames of the AMR_CONFIG_REQ.
7) The SS shall send a second AMR_CONFIG_REQ message within 11 speech frames of sending the first AMR_CONFIG_REQ message .
8) The SS shall verify that the codec mode used by the MS after the REQ_Activation counter has elapsed is consistent with the first AMR_CONFIG_REQ message, and not the second AMR_CONFIG_REQ message.
9) The SS initiates the call release.
Maximum Duration of Test
5 minutes
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
MS->SS |
Setup |
MS indicates supported speech versions |
11 |
SS->MS |
Call Proceeding |
|
12 |
SS->MS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
See specific message contents. |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
AMR_CONFIG_REQ |
See specific message contents. |
19 |
MS->SS |
ACK_OK |
Message must be received within 3 speech frames |
20 |
SS->MS |
AMR_CONFIG_REQ |
See specific message contents. To be sent to MS within 11 speech frames of having sent the first message in step 18. |
21 |
MS |
Verify that the codec mode used by the MS is that specified in step 18. |
|
22 |
SS->MS |
Disconnect |
|
23 |
MS->SS |
Release |
|
24 |
SS->MS |
Release Complete |
|
25 |
SS->MS |
Channel Release |
Specific Message Contents
ASSIGNMENT COMMAND
Information Element |
value/remarks |
Channel description |
O-TCH/AHS |
Mode of the first channel – Mode |
Half rate version 6. |
AMR_CONFIG_REQ
In step 18:
Information Element |
value/remarks |
ICM |
CODEC_MODE_1 |
ACS |
2 codec modes |
HYST2 |
Not defined (set to all 1s) |
THRESH2 |
Not defined (set to all 1s) |
HYST1 |
2 dB |
THRESH1 |
12.5 dB |
In step 20:
Information Element |
value/remarks |
ICM |
CODEC_MODE_1 |
ACS |
1 codec mode – different to any codec mode specified in the ACS in step 15. |
HYST2 |
Not defined (set to all 1s) |
THRESH2 |
Not defined (set to all 1s) |
HYST1 |
Not defined (set to all 1s) |
THRESH1 |
Not defined (set to all 1s) |
26.17.9.9 Initiation of Transaction with ACK_ERR or ACK_UNKNOWN
26.17.9.9.1 Conformance requirements
If at either side an ACK_ERR or ACK_UNKNOWN is received although no corresponding REQ has been sent before, the ACK message shall be ignored.
Reference:
3GPP TS 45.009 sub-clause: 3.2.2.2
26.17.9.9.2 Test purpose
This test will verify that the MS ignores any ACK_ERR or ACK_UNKNOWN which is received without a corresponding REQ having been sent.
26.17.9.9.3 Method of test
Initial Conditions
System Simulator:
1 cell with default parameters
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
Idle Updated, TMSI allocated and camped on cell A.
Test Procedure
1) User initiates a Mobile Originated call.
2) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
3) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
4) The call is maintained during a programmable time without variation of RxLev /RxQual.
5) The SS shall send an ACK_ERR message during the call at a programmable time.
6) The SS verifies that no message is received from the MS on the RATSCCH within 12 speech frames.
7) The SS shall send an ACK_UNKNOWN message during the call at a programmable time.
8) The SS verifies that no message is received from the MS on the RATSCCH within 12 speech frames.
9) The network initiates the call release.
Maximum Duration of Test
5 minutes
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
MS->SS |
Setup |
MS indicates supported speech versions |
11 |
SS->MS |
Call Proceeding |
|
12 |
SS->MS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
See specific message contents for codec modes. |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
ACK_ERR |
|
19 |
MS |
Wait at least 12 speech frames to ensure that no message is received from the MS. |
|
20 |
SS->MS |
ACK_UNKNOWN |
|
21 |
MS |
Wait at least 12 speech frames to ensure that no message is received from the MS. |
|
22 |
SS->MS |
Disconnect |
|
23 |
MS->SS |
Release |
|
24 |
SS->MS |
Release Complete |
|
25 |
SS->MS |
Channel Release |
Specific Message Contents
ASSIGNMENT COMMAND
Information Element |
value/remarks |
Channel description |
O-TCH/AHS |
Mode of the first channel – Mode |
Half rate version 6 |
26.17.9.10 Inversion of the Phase of the CMR/CMI
26.17.9.10.1 Conformance requirements
The phase of the Codec Mode Indication in the downlink can be changed during a call by using a CMI_PHASE_REQ message sent on the RATSCCH.
The CMI_PHASE_REQ message may be sent by the BTS during a call to change the phase of the Codec Mode Indication in the downlink without interruption of the speech transmission.
The ACK_OK message serves as an acknowledgement that a RATSCCH REQ message has been detected, correctly decoded (no CRC error) and that it is defined for the Addressee.
References:
3GPP TS 45.009 clauses 3.2.1.3 and 3.2.2.3.4.
26.17.9.10.2 Test purpose
This test shall verify that the MS is able to change the phase of the Codec Mode Indication in the downlink using the RATSCCH protocol.
26.17.9.10.3 Method of test
Initial Conditions
System Simulator:
1 cell with default parameters
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
Idle Updated, TMSI allocated and camped on cell A.
Test Procedure
1) User initiates a Mobile Originated call.
2) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
3) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
4) The network shall indicate Codec Mode Command = 0 and Codec Mode Indication = 1.
5) The SS sends a series of CMI_PHASE_REQ messages during the call to change the phase of the Codec Mode Indication in the downlink.
6) The MS responds to each CMI_PHASE_REQ message with an ACK_OK message on the RATSCCH.
7) The SS shall ensure that the phase request has been handled correctly by checking the Uplink CMI = 0 for 20 speech frames following the receipt of the ACK_OK.
8) The network initiates the call release.
Maximum Duration of Test
5 minutes
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
SS->MS |
Setup |
AMR speech |
11 |
MS->SS |
Call Proceeding |
|
12 |
MS->SS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
Multirate Configuration for 2 codec modes |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
CMI_PHASE_REQ |
See specific message contents |
19 |
MS->SS |
ACK_OK |
|
20 |
MS |
Wait 20 speech frames, then check that UL CMI = 0 |
|
21 |
SS->MS |
CMI_PHASE_REQ |
See specific message contents |
22 |
MS->SS |
ACK_OK |
|
23 |
MS |
Wait 20 speech frames, then check that UL CMI = 0 |
|
24 |
SS->MS |
CMI_PHASE_REQ |
See specific message contents |
25 |
MS->SS |
ACK_OK |
|
26 |
MS |
Wait 20 speech frames, then check that UL CMI = 0 |
|
27 |
SS->MS |
CMI_PHASE_REQ |
See specific message contents |
28 |
MS->SS |
ACK_OK |
|
29 |
MS |
Wait 20 speech frames, then check that UL CMI = 0 |
|
30 |
SS->MS |
Disconnect |
|
31 |
MS->SS |
Release |
|
32 |
SS->MS |
Release Complete |
|
33 |
SS->MS |
Channel Release |
Specific Message Contents
ASSIGNMENT COMMAND
Information Element |
value/remarks |
Channel description |
O-TCH/AHS |
Mode of the first channel – Mode |
Half rate version 6. |
In step 15:
CMI_PHASE_REQ
Information Element |
value/remark |
CMIP |
0: CMI transmitted in even speech frames |
This message should be sent in a RATSCCH frame where the RATSCCH_DATA part for AHS replaces a speech frame which would have carried a Codec Mode Command.
In step 18:
CMI_PHASE_REQ
Information Element |
value/remark |
CMIP |
1: CMI transmitted in odd speech frames (back to default) |
This message should be sent in a RATSCCH frame where the RATSCCH_DATA part for AHS replaces a speech frame which would have carried a Codec Mode Command.
In step 21:
CMI_PHASE_REQ
Information Element |
value/remark |
CMIP |
0: CMI transmitted in even speech frames |
This message should be sent in a RATSCCH frame where the RATSCCH_DATA part for AHS replaces a speech frame which would have carried a Codec Mode Indication.
In step 24:
CMI_PHASE_REQ
Information Element |
value/remark |
CMIP |
1: CMI transmitted in odd speech frames (back to default) |
This message should be sent in a RATSCCH frame where the RATSCCH_DATA part for AHS replaces a speech frame which would have carried a Codec Mode Indication.
26.17.9.11 Change of Active Codec Set
26.17.9.11.1 Conformance requirements
AMR codec mode adaptation is done within a set of 4 codec modes. The codec mode set (Active Codec Set) to be used by the BSS and the MS is defined during call setup and/or handover by layer 3 signalling. The ACS can be changed during a call using an AMR_CONFIG_REQ message sent on the RATSCCH.
The AMR_CONFIG_REQ message may be sent by the BTS during a call to change the AMR configuration on the radio interface without interruption of the speech transmission.
The ACK_OK message serves as an acknowledgement that a RATSCCH REQ message has been detected, correctly decoded (no CRC error) and that it is defined for the Addressee.
If the ACS consists of four modes, then the complete set of thresholds/hysteresis can not be sent with this message. In that case, all THRESHj and HYSTj fields are reserved for future use and shall be set to "1". Similar, if the BTS has no threshold and hysteresis parameters for the given configuration, then all THRESHj and HYSTj field bits shall be set to "1" to indicate that they are undefined. The THRESH_REQ message shall be used to transmit these parameters at a later point in time. As long as the MS has no defined threshold and hysteresis parameters it shall use the Initial Codec Mode for the Codec Mode Request.
References:
3GPP TS 45.009 clauses 3.2.2.3.5 and 3.4.
26.17.9.11.2 Test purpose
This test shall verify that the MS is able to change its Active Codec Set using the RATSCCH protocol, with change of thresholds, and with non-specification of thresholds.
26.17.9.11.3 Method of test
Initial Conditions
System Simulator:
1 cell with default parameters
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
Idle Updated, TMSI allocated and camped on cell A.
Test Procedure
1) User initiates a Mobile Originated call.
2) The network and the MS indicate Bearer capabilities IE with the AMR speech Half Rate (Version 6).
3) The network performs an assignment on a TCH channel with MultiRate configuration to the MS.
4) The SS uses the codec with the highest bit-rate in the current ACS for the Codec Mode Indication, and that with the lowest bit-rate for the Codec Mode Command.
5) The SS sends an AMR_CONFIG_REQ message during the call to reconfigure the Multirate settings.
6) The MS responds to each AMR_CONFIG_REQ message with an ACK_OK message on the RATSCCH.
7) The SS shall ensure that the change occurs correctly for downlink (12 speech frames after AMR_CONFIG_REQ message was sent), and for uplink (12 speech frames after ACK_OK was received) by checking parity of received speech frames, and correct implementation of Uplink Codec mode Request.
8) The SS shall ensure that each of the codecs in the ACS have been implimented correctly by setting the CMC to each of the applicable modes, and ensuring that the UL frames with each CMI are received without parity error. The SS shall then set the CMI and CMC to the codec with highest and lowest bit rates respectively.
9) Steps 4 to 8 shall be repeated for differing AMR_CONFIG_REQ parameters and sending conditions.
10) The network initiates the call release.
Maximum Duration of Test
5 minutes
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
MS |
MS is in idle mode |
|
2 |
MS |
MS initiates Mobile Originated call |
|
3 |
MS->SS |
Channel Request |
Establishment cause is "originating call and the network does not set the NECI bit to 1". |
4 |
SS->MS |
Immediate Assignment |
See Default Messages for AMR |
5 |
MS->SS |
CM Service Request |
CM Service Type = Mobile Originating Call Establishment. |
6 |
SS->MS |
AUTHENTICATION REQUEST |
|
7 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
8 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
9 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
10 |
MS->SS |
Setup |
AMR speech |
11 |
SS->MS |
Call Proceeding |
|
12 |
SS->MS |
Alerting |
|
13 |
SS->MS |
Assignment Command |
Multirate Configuration for 2 codec modes |
14 |
MS->SS |
Assignment Complete |
|
15 |
SS->MS |
Connect |
|
16 |
MS->SS |
Connect Acknowledge |
|
17 |
MS |
The TCH shall be through connected by both directions in the dedicated mode, using the codec mode specified. |
|
18 |
SS->MS |
AMR_CONFIG_REQ |
See specific message contents. |
19 |
MS->SS |
ACK_OK |
|
20 |
MS |
Check that ACS changes have been implemented correctly. Expected CMR = 0. |
|
21 |
SS->MS |
AMR_CONFIG_REQ |
See specific message contents. |
22 |
MS->SS |
ACK_OK |
|
23 |
MS |
Check that ACS changes have been implemented correctly. Expected CMR = 0 or 1. |
|
24 |
SS->MS |
AMR_CONFIG_REQ |
See specific message contents. |
25 |
MS->SS |
ACK_OK |
|
26 |
MS |
Check that ACS changes have been implemented correctly. Expected CMR = 0, 1 or 2. |
|
27 |
SS->MS |
AMR_CONFIG_REQ |
See specific message contents. |
28 |
MS->SS |
ACK_OK |
|
29 |
MS |
Check that ACS changes have been implemented correctly. Expected CMR = 0, 1, 2 or 3. |
|
30 |
SS->MS |
AMR_CONFIG_REQ |
See specific message contents. |
31 |
MS->SS |
ACK_OK |
|
32 |
MS |
Check that ACS changes have been implemented correctly. Expected CMR = 2 (special case where CMR = ICM). |
|
33 |
SS->MS |
Disconnect |
|
34 |
MS->SS |
Release |
|
35 |
SS->MS |
Release Complete |
|
36 |
SS->MS |
Channel Release |
Specific Message Contents
In all cases, the Active Codec Set field of the AMR_CONFIG_REQ messages should be programmed to ensure that the codec rate changes when the new configuration takes effect.
ASSIGNMENT COMMAND
Information Element |
value/remarks |
Channel description |
O-TCH/AHS |
Mode of the first channel – Mode |
Half rate version 6. |
Multi-Rate configuration |
Arbitrary set of codec modes, thresholds and hysteresis specified according to 3GPP TS 45.009 |
In step 18:
AMR_CONFIG_REQ
Information Element |
value/remark |
ICM |
CODEC_MODE_1 |
ACS |
1 codec mode (different from that in Assignment Command) |
HYST2 |
n/a – set to all 1’s |
THRESH2 |
n/a – set to all 1’s |
HYST1 |
n/a – set to all 1’s |
THRESH1 |
n/a – set to all 1’s |
This message should be sent in a RATSCCH frame where the RATSCCH_DATA part for AHS replaces a speech frame which would have carried a Codec Mode Command.
In step 21:
AMR_CONFIG_REQ
Information Element |
value/remark |
ICM |
CODEC_MODE_1 |
ACS |
2 codec modes |
HYST2 |
n/a – set to all 1’s |
THRESH2 |
n/a – set to all 1’s |
HYST1 |
2 dB |
THRESH1 |
12.5 dB |
This message should be sent in a RATSCCH frame where the RATSCCH_DATA part for AHS replaces a speech frame which would have carried a Codec Mode Command.
In step 24:
AMR_CONFIG_REQ
Information Element |
value/remark |
ICM |
CODEC_MODE_2 |
ACS |
3 codec modes |
HYST2 |
2 dB |
THRESH2 |
13 dB |
HYST1 |
2 dB |
THRESH1 |
7 dB |
This message should be sent in a RATSCCH frame where the RATSCCH_DATA part for AHS replaces a speech frame which would have carried a Codec Mode Indication.
In step 27:
AMR_CONFIG_REQ
Information Element |
value/remark |
ICM |
CODEC_MODE_3 |
ACS |
4 codec modes |
HYSTc |
2 dB |
THRESH3 |
18 dB |
THRESH2 |
12 dB |
THRESH1 |
6.5 dB |
This message should be sent in a RATSCCH frame where the RATSCCH_DATA part for AHS replaces a speech frame which would have carried a Codec Mode Indication.
In step 30:
AMR_CONFIG_REQ
Information Element |
value/remark |
ICM |
CODEC_MODE_3 |
ACS |
4 codec modes |
HYST2 |
Undefined – set to all 1’s |
THRESH2 |
Undefined – set to all 1’s |
HYST1 |
Undefined – set to all 1’s |
THRESH1 |
Undefined – set to all 1’s |
This message should be sent in a RATSCCH frame where the RATSCCH_DATA part for AHS replaces a speech frame which would have carried a Codec Mode Command.
26.17.10 8-PSK AMR HR signalling/ test of the channel mode modify procedure
NOTE: This test is derived from the test in sub-clause 26.16.10 entitled "AMR signalling/ test of the channel mode modify procedure ".
26.17.10.1 Void
26.17.10.2 8-PSK AMR HR signalling/ test of the channel mode modify procedure/ half rate
26.17.10.2.1 Conformance requirement
The MS with a TCH/H allocated acknowledges a CHANNEL MODE MODIFY message by sending a CHANNEL MODE MODIFY ACKNOWLEDGE message specifying the new mode and by switching to this mode.
References
3GPP TS 04.08 / 3GPP TS 44.018, subclauses 3.4.6.1.1 and 3.4.6.1.2
26.17.10.2.2 Test purpose
To verify that the MS with a TCH/H allocated acknowledges a CHANNEL MODE MODIFY message by sending a CHANNEL MODE MODIFY ACKNOWLEDGE message specifying the new mode and by switching to this mode.
26.17.10.2.3 Method of test
Initial Conditions
System Simulator: 1 cell, default parameters.
Mobile Station: The MS is "idle updated", with TMSI allocated.
Specific PICS statements:
–
PIXIT statements:
–
Foreseen Final State of the MS
"Idle, updated", with TMSI allocated.
Test procedure
A Mobile Terminated call is initiated, however following the CHANNEL REQUEST received from the Mobile Station, the SS sends an IMMEDIATE ASSIGNMENT to the MS commanding it to go to a TCH/H. This sets the Channel Mode automatically to "Signalling Only".
The SS then sends a series of CHANNEL MODE MODIFY messages to the MS. Each time it is checked that the MS responds with a CHANNEL MODE MODIFY ACKNOWLEDGE message specifying the channel mode that has been specified in the CHANNEL MODE MODIFY message (i.e. Half Rate version 6)
Maximum Duration of Test
30 seconds.
Expected Sequence
Step |
Direction |
Message |
Comments |
1 |
SS->MS |
PAGING REQUEST TYPE 1 |
Sent on correct paging sub channel |
2 |
MS->SS |
CHANNEL REQUEST |
Establishment cause indicates "answer to paging" |
3 |
SS->MS |
IMMEDIATE ASSIGNMENT |
Assignment to a non hopping TCH/H signalling only |
4 |
MS->SS |
PAGING RESPONSE |
Message is contained in the SABM |
5 |
SS->MS |
AUTHENTICATION REQUEST |
|
6 |
MS->SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value |
7 |
SS->MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message |
8 |
MS->SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
9 |
SS |
SS starts ciphering |
|
10 |
SS->MS |
CHANNEL MODE MODIFY |
|
11 |
MS->SS |
CHANNEL MODE MODIFY ACKNOWLEDGE |
Verify that Channel description = TCH/H, Channel mode = Half rate version 6 |
12 |
SS->MS |
CHANNEL MODE MODIFY |
|
13 |
MS->SS |
CHANNEL MODE MODIFY ACKNOWLEDGE |
Verify that Channel description = TCH/H, Channel mode = Half rate version 6 |
14 |
SS->MS |
CHANNEL MODE MODIFY |
|
15 |
MS->SS |
CHANNEL MODE MODIFY ACKNOWLEDGE |
Verify that Channel description = TCH/H, Channel mode = Half rate version 6 |
16 |
SS->MS |
CHANNEL MODE MODIFY |
|
17 |
MS->SS |
CHANNEL MODE MODIFY ACKNOWLEDGE |
Verify that Channel description = TCH/H, Channel mode = Half rate version 6 |
18 |
SS->MS |
CHANNEL RELEASE |
Specific Message Contents
In steps 10 – 16:
CHANNEL MODE MODIFY
Information Element |
value/remark |
Channel description |
in steps 10, 12, 14, 16: same as for step 3 |
Channel mode |
|
Mode |
Speech Full or Half rate version 6 |
Multi-Rate configuration |
in steps 10: change of MR configuration, no initial codec mode in steps 12: change of MR configuration, initial codec mode specified in steps 14: change of MR thresholds, no initial codec mode in steps 16: initial codec mode specified |