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_MR_Dn(MR’)

THR_MC_Up(MC’)/
THR_MR_Up(MR’)

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