26.21 VAMOS Signalling
3GPP51.010-1Mobile Station (MS) conformance specificationPart 1: Conformance specificationTS
26.21.0 General
VAMOS signalling test cases in this section are performed with SCPIR = 0 if not otherwise defined in the test case.
VAMOS signalling test cases are performed in VAMOS I mode for MS supporting VAMOS I, VAMOS II mode for MS supporting VAMOS II and in VAMOS III mode for MS supporting VAMOS III. VAMOS II and VAMOS III mode implies testing of shifted SACCH channel.
Table 26.21-1 lists the VAMOS TSC sets and channel types used to achieve a good coverage for the possible TSC sets and channel types within the test procedures of the VAMOS signalling test cases.
Table 26.21-1
|
Test Case |
Exec counter M |
call establishment |
Cell A |
Cell A |
Handover |
Cell B |
Cell B |
|
26.21.1 |
1 |
MO (late assign.) |
TCH/FS |
1 (Set 2) |
– |
– |
– |
|
26.21.1 |
2 |
MO (late assign.) |
TCH/EFS |
3 (Set 2) |
– |
– |
– |
|
26.21.1 |
3 |
MO (late assign.) |
TCH/AFS |
5 (Set 2) |
– |
– |
– |
|
26.21.2 |
1 |
MT (very early assign.) |
TCH/FS |
2 (Set 2) |
– |
– |
– |
|
26.21.2 |
2 |
MT (very early assign.) |
TCH/EFS |
3 (Set 2) |
– |
– |
– |
|
26.21.2 |
3 |
MT (very early assign.) |
TCH/AFS |
4 (Set 2) |
– |
– |
– |
|
26.21.2 |
4 |
MT (very early assign.) |
TCH/HS |
6 (Set 2) |
– |
– |
– |
|
26.21.2 |
5 |
MT (very early assign.) |
TCH/AHS |
7 (Set 2) |
– |
– |
– |
|
26.21.4 |
1 |
MT (late assign.) |
TCH/FS |
1 (Set 2) |
non synced |
TCH/FS |
2 (Set 2) |
|
26.21.4 |
2 |
MT (late assign.) |
TCH/EFS |
3 (Set 2) |
non synced |
TCH/EFS |
4 (Set 2) |
|
26.21.4 |
3 |
MT (late assign.) |
TCH/AFS |
5 (Set 2) |
non synced |
TCH/AFS |
5 (Set 2) |
|
26.21.4 |
4 |
MT (late assign.) |
TCH/FS |
2 (Set 2) |
finely synced |
TCH/FS |
3 (Set 2) |
|
26.21.4 |
5 |
MT (late assign.) |
TCH/EFS |
4 (Set 2) |
finely synced |
TCH/EFS |
5 (Set 2) |
|
26.21.4 |
6 |
MT (late assign.) |
TCH/AFS |
6 (Set 2) |
finely synced |
TCH/AFS |
7 (Set 2) |
|
26.21.5 |
– |
DTM |
TCH/FS |
3 (Set 2) |
– |
– |
– |
|
26.21.6 |
1 |
MO (late assign.) |
TCH/HS |
1 (Set 2) |
non synced |
TCH/FS |
2 (Set 1) |
|
26.21.6 |
2 |
MO (late assign.) |
TCH/AHS |
3 (Set 2) |
non synced |
TCH/EFS |
4 (Set 1) |
|
26.21.6 |
3 |
MO (late assign.) |
TCH/AHS |
5 (Set 2) |
non synced |
TCH/AFS |
5 (Set 1) |
|
26.21.6 |
4 |
MO (late assign.) |
TCH/HS |
0 (Set 2) |
finely synced |
TCH/FS |
1 (Set 1) |
|
26.21.6 |
5 |
MO (late assign.) |
TCH/AHS |
2 (Set 2) |
finely synced |
TCH/EFS |
5 (Set 1) |
|
26.21.6 |
6 |
MO (late assign.) |
TCH/AHS |
4 (Set 2) |
finely synced |
TCH/AFS |
7 (Set 1) |
|
26.21.7 |
1 |
Emergency call |
TCH/FS |
5 (Set 2) |
– |
– |
– |
|
26.21.7 |
2 |
Emergency call |
TCH/EFS |
6 (Set 2) |
– |
– |
– |
|
26.21.7 |
3 |
Emergency call |
TCH/AFS |
7 (Set 2) |
– |
– |
– |
|
26.21.7 |
4 |
Emergency call |
TCH/HS |
0 (Set 2) |
– |
– |
– |
|
26.21.7 |
5 |
Emergency call |
TCH/AHS |
1 (Set 2) |
– |
– |
– |
|
26.21.8 |
1 |
MO (early assign.) |
TCH/AFS 12.2 |
1 (Set 2) |
finely synced |
TCH/AFS 10.2 |
2 (Set 2) |
|
26.21.8 |
2 |
MO (early assign.) |
TCH/AFS7.95 |
3 (Set 2) |
finely synced |
TCH/AHS7.4 |
4 (Set 2) |
|
26.21.8 |
3 |
MO (early assign.) |
TCH/AHS 6.7 |
5 (Set 2) |
finely synced |
TCH/AFS 5.9 |
5 (Set 2) |
|
26.21.8 |
4 |
MO (early assign.) |
TCH/AHS 5.15 |
0 (Set 2) |
finely synced |
TCH/AHS 4.75 |
1 (Set 2) |
NOTE: When procedures in the table are modified or added the affected test case definitions need to be aligned or enhanced.
Editor’s Notes: Additional execution counter M for other speech modes (e.g. TCH/WFS) could be added to the table and test cases.
26.21.1 VAMOS Signalling / MS originated call FR / TSC assignment in ASSIGNMENT COMMAND
26.21.1.1 Conformance requirements
1) VAMOS allows multiplexing of two users simultaneously on the same physical resource in the circuit switched mode both in downlink and in uplink, using the same timeslot number, ARFCN and TDMA frame number. Hence, a basic physical channel capable of VAMOS supports up to 4 TCH channels along with their associated control channels (FACCH and SACCH).
The channel organization for TCH, FACCH and SACCH/T in VAMOS mode shall be done as described in 3GPP TS 45.002.
2) Upon receipt of the ASSIGNMENT COMMAND message, the mobile station initiates a local end release of link layer connections and packet resources, if in dual transfer mode, 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 main signalling links).
Table 26.21.1.1: Channel Description 2 information element
|
Channel type and TDMA offset (octet 2) Bits 8 7 6 5 4 0 0 0 0 0 TCH/F + FACCH/F and SACCH/M at the timeslot indicated by TN, and additional bidirectional or undirectional TCH/Fs and SACCH/Ms according to the multislot allocation information element 0 0 0 0 1 TCH/F + FACCH/F and SACCH/F 0 0 0 1 T TCH/H + ACCHs 0 0 1 T T SDCCH/4 + SACCH/C4 or CBCH (SDCCH/4) 0 1 T T T SDCCH/8 + SACCH/C8 or CBCH (SDCCH/8) 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 1 1 1 0 T TCH/H + ACCHs using TSC Set 2 The T bits indicate the subchannel number coded in binary. In the description below "n" is the timeslot number indicated by TN. The description is valid only if all the indicated timeslot numbers are in the range 0 to 7. |
References
3GPP TS 45.001 subclause 13.1.
3GPP TS 44.018 subclauses 3.4.3.1, .10.5.2.5
26.21.1.2 Test purpose
To verify for MO call setup procedure that the MS applies the correct VAMOS TSC set allocated by ASSIGNMENT COMMAND message for full rate speech channels.
26.21.1.3 Method of Test
Initial Conditions
System Simulator:
1 cell, default parameters, TSC as defined in table 26.21-1 Cell A TSC set for execution counter M.
Mobile Station:
in MM-state "idle, updated" with valid TMSI and CKSN
Specific PICS statements:
– VAMOS II supported ( TSPC_VAMOS_Type2)
– VAMOS III supported (TSPC_VAMOS_Type3)
– Speech supported for Full rate version 2 (TSPC_AddInfo_Full_rate_version_2).
– Speech supported for Full rate version 3 (TSPC_AddInfo_Full_rate_version_3)
PIXIT statements:
– Way to indicate mobile originated alerting.
Foreseen Final State of MS
"Idle, updated", with TMSI allocated.
Test Procedure
The MS is made to initiate a speech call. The network and the MS indicate Bearer capabilities IE with supported Full Rate channels. The call is established with a late assignment. VAMOS TSC set 2 according to table 26.21-1 is assigned in ASSIGNMENT COMMAND. It is checked that the TCH is through connected in both directions. The network initiates the call release.
The test is repeated for all full rate channel modes supported by the MS (see table 26.21-1).
Maximum Duration of Test
3 minutes
Expected Sequence
The test is executed for execution counter M = 1, 2 (optional), 3 (optional).
|
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 the supported speech versions. |
|
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 full rate speech channel: M = 1: FS M = 2: EFS M = 3: AFS SS allocates TSC from TSC set 2. |
|
15 |
MS->SS |
ASSIGNMENT COMPLETE |
TSC set 2 is used in uplink and downlink for this and the following messages. |
|
16 |
SS -> MS |
CONNECT |
|
|
17 |
MS -> SS |
CONNECT ACKNOWLEDGE |
|
|
18 |
MS |
The appropriate bearer channel is through connected in both directions. |
|
|
19 |
SS -> MS |
DISCONNECT |
|
|
20 |
MS -> SS |
RELEASE |
|
|
21 |
SS -> MS |
RELEASE COMPLETE |
|
|
22 |
SS -> MS |
CHANNEL RELEASE |
The main signalling link is released. |
Specific Message Content
Assignment Command (step 14)
|
Information Element |
value/remark |
|
CHANNEL DESCRIPTION 2 |
Channel Type and TDMA Offset Bits 8 7 6 5 4 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 |
|
CHANNEL MODE |
M=1: 0 0 0 0 0 0 0 1 speech full rate or half rate version 1 M=2: 0 0 1 0 0 0 0 1 speech full rate or half rate version 2 M=3: 0 1 0 0 0 0 0 1 speech full rate or half rate version 3 |
26.21.2 VAMOS Signalling / MS Terminated call / Channel mode assignment in Channel Mode Modify
26.21.2.1 Conformance requirements
1) VAMOS allows multiplexing of two users simultaneously on the same physical resource in the circuit switched mode both in downlink and in uplink, using the same timeslot number, ARFCN and TDMA frame number. Hence, a basic physical channel capable of VAMOS supports up to 4 TCH channels along with their associated control channels (FACCH and SACCH).
The channel organization for TCH, FACCH and SACCH/T in VAMOS mode shall be done as described in 3GPP TS 45.002.
2) The channel mode modify procedure allows the network to request the mobile station to set the channel mode for one channel or one channel set. The procedure shall not be used if the multislot configuration contains more than one channel set. The channel mode covers the coding, decoding and transcoding mode used on the indicated channel.
Table 26.21.2.1: Channel Description information element
|
Channel type and TDMA offset (octet 2) Bits 8 7 6 5 4 S 0 0 0 1 TCH/F + ACCHs S 0 0 1 T TCH/H + ACCHs 0 0 1 T T SDCCH/4 + SACCH/C4 or CBCH (SDCCH/4); TSC Set 1 shall be used 0 1 T T T SDCCH/8 + SACCH/C8 or CBCH (SDCCH/8); TSC Set 1 shall be used The T bits indicate the subchannel number coded in binary. S, TSC set Bit 8 0 TSC Set 1 shall be used 1 TSC Set 2 shall be used All other values are reserved. |
Table 26.21.2.2: Channel Mode information element
|
The mode field is encoded as follows: (octet 2) Bits 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 signalling only 0 0 0 0 0 0 0 1 speech full rate or half rate version 1 1 1 0 0 0 0 0 1 speech full rate or half rate version 1 in VAMOS mode (Note 3) 0 0 1 0 0 0 0 1 speech full rate or half rate version 2 1 1 0 0 0 0 1 0 speech full rate or half rate version 2 in VAMOS mode (Note 3) 0 1 0 0 0 0 0 1 speech full rate or half rate version 3 1 1 0 0 0 0 1 1 speech full rate or half rate version 3 in VAMOS mode (Note 3) 1 0 0 0 0 0 0 1 speech full rate or half rate version 4 1 0 0 0 0 0 1 0 speech full rate or half rate version 5 1 1 0 0 0 1 0 1 speech full rate or half rate version 5 in VAMOS mode (Note 3) 1 0 0 0 0 0 1 1 speech full rate or half rate version 6 0 1 1 0 0 0 0 1 data, 43.5 kbit/s (downlink)+14.5 kbps (uplink) 0 1 1 0 0 0 1 0 data, 29.0 kbit/s (downlink)+14.5 kbps (uplink) 0 1 1 0 0 1 0 0 data, 43.5 kbit/s (downlink)+29.0 kbps (uplink) 0 1 1 0 0 1 1 1 data, 14.5 kbit/s (downlink)+43.5 kbps (uplink) 0 1 1 0 0 1 0 1 data, 14.5 kbit/s (downlink)+29.0 kbps (uplink) 0 1 1 0 0 1 1 0 data, 29.0 kbit/s (downlink)+43.5 kbps (uplink) 0 0 1 0 0 1 1 1 data, 43.5 kbit/s radio interface rate 0 1 1 0 0 0 1 1 data, 32.0 kbit/s radio interface rate 0 1 0 0 0 0 1 1 data, 29.0 kbit/s radio interface rate 0 0 0 0 1 1 1 1 data, 14.5 kbit/s radio interface rate 0 0 0 0 0 0 1 1 data, 12.0 kbit/s radio interface rate 0 0 0 0 1 0 1 1 data, 6.0 kbit/s radio interface rate 0 0 0 1 0 0 1 1 data, 3.6 kbit/s radio interface rate 0 0 0 1 0 0 0 0 data, 64.0 kbit/s Transparent Data Bearer (Note 2) Other values are reserved for future use. Note 1: The speech versions are also referred as follows (see 3GPP TS 26.103): full rate or half rate version 1: GSM FR or GSM HR full rate or half rate version 2: GSM EFR (half rate version 2 not defined in this version of the protocol) full rate or half rate version 3: FR AMR or HR AMR full rate or half rate version 4: OFR AMR-WB or OHR AMR-WB full rate or half rate version 5: FR AMR-WB (half rate version 5 not defined in this version of the protocol) full rate or half rate version 6: OHR AMR (full rate version 6 not defined in this version of the protocol) Note 2: This code point is only used for channel assignments made in GAN mode Note 3: This code point is only used for a mobile station that indicates support for VAMOS II or VAMOS III (see 3GPP TS 24.008) |
References
3GPP TS 45.001 subclause 13.1.
3GPP TS 44.018 subclauses 3.4.6 .10.5.2.5
26.21.2.2 Test purpose
To verify for MT call setup procedure that the MS applies the correct VAMOS TSC Set allocated by IMMEDIATE ASSIGNMENT message also check that channel mode modify configure a VAMOS II and VAMOS III channel correctly.
26.21.2.3 Method of Test
Initial Conditions
System Simulator:
1 cell, default parameters, TSC as defined in table 26.21-1 Cell A TSC set for execution counter M.
Mobile Station:
in MM-state "idle, updated" with valid TMSI and CKSN
Specific PICS statements:
– VAMOS II supported ( TSPC_VAMOS_Type2)
– VAMOS III supported (TSPC_VAMOS_Type3)
– Speech supported for Full rate version 2 (TSPC_AddInfo_Full_rate_version_2).
– Speech supported for Full rate version 3 (TSPC_AddInfo_Full_rate_version_3)
– Speech supported for Half rate version 1 (TSPC_AddInfo_Half_rate_version_1)
– Speech supported for Half rate version 3 (TSPC_AddInfo_Half_rate_version_3)
– Immediate connect supported for all circuit switched basic services. (TSPC_AddInfo_ImmConn)
PIXIT statements:
– Way to make the MS accept an incoming call after alerting.
Foreseen Final State of MS
CC state U10-call active.
Test Procedure
The MS is paged and the resulting a speech call is established. The network and the MS indicate Bearer capabilities IE with supported Half Rate channels. The call is established with a late assignment using channel mode modify. It is checked that the TCH is through connected in both directions. The channel mode modify command includes a channel mode for a VAMOS II or VAMOS III mobile.
The test is repeated for all half rate channel modes supported by the MS.
Maximum Duration of Test
3 minutes
Expected Sequence
The test is executed for execution counter M = 1 , 2 (optional) ), 3 (optional) ), 4 (optional) ), 5 (optional).
|
Step |
Direction |
Message |
Comments |
|
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
Sent on the correct paging subchannel. |
|
2 |
MS -> SS |
CHANNEL REQUEST |
Establishment cause indicates "answer to paging". |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
Assignment to if M=1 to 3 TCH/F if M=4 to 5 TCH/HS, SS allocates TSC and TSC set according to table 26.21-1 |
|
4 |
MS -> SS |
PAGING RESPONSE |
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 |
SS -> MS |
SETUP |
Message contains the signal IE. |
|
11 |
MS -> SS |
CALL CONFIRMED |
|
|
A12 |
MS -> SS |
CONNECT |
|
|
B12 |
MS -> SS |
ALERTING |
|
|
B13 |
MS |
An alerting indication as defined in an PIXIT statement is given by the MS. |
|
|
B14 |
MS |
The MS is made to accept the call in the way described in a PIXIT statement. |
|
|
B15 |
MS -> SS |
CONNECT |
|
|
16 |
SS -> MS |
CHANNEL MODE MODIFY |
SS allocates half rate speech channel: M = 1: FS M = 2: EFS M = 3: AFS M = 4: HS M = 5: AHS |
|
17 |
MS -> SS |
CHANNEL MODE MODIFY ACKNOWLEDGE |
|
|
18 |
MS |
If the call is a speech call, the TCH shall be through connected in both directions. |
|
|
19 |
SS -> MS |
CONNECT ACKNOWLEDGE |
|
|
20 |
MS |
The appropriate bearer channel is through connected in both directions. |
Specific Message Content
Channel Mode Modify (Step 16)
For MS supporting VAMOS II or VAMOS III:
|
Information Element |
value/remark |
|
CHANNEL MODE |
M=1: 1 1 0 0 0 0 0 1 speech full rate or half rate version 1 in VAMOS mode (Note 3, Table 26.21.2.2) M=2: 1 1 0 0 0 0 1 0 speech full rate or half rate version 2 in VAMOS mode (Note 3, Table 26.21.2.2) M=3: 1 0 0 0 0 1 1 speech full rate or half rate version 3 in VAMOS mode (Note 3, Table 26.21.2.2) M=4: 1 1 0 0 0 0 0 1 speech full rate or half rate version 1 in VAMOS mode (Note 3, Table 26.21.2.2) M=5: 1 0 0 0 0 1 1 speech full rate or half rate version 3 in VAMOS mode (Note 3, Table 26.21.2.2) |
For MS supporting VAMOS I only:
|
Information Element |
value/remark |
|
CHANNEL MODE |
M=1 and 4: 0 0 0 0 0 0 0 1 speech full rate or half rate version 1 M=2 and 5: 0 0 1 0 0 0 0 1 speech full rate or half rate version 2 M=3 and 6: 0 1 0 0 0 0 0 1 speech full rate or half rate version 3 M=4 and 4: 0 0 0 0 0 0 0 1 speech full rate or half rate version 1 M=5 and 6: 0 1 0 0 0 0 0 1 speech full rate or half rate version 3 |
26.21.3
26.21.4 VAMOS Signalling / MS terminated call / Handover to VAMOS mode
26.21.4.1 Conformance requirements
1) VAMOS allows multiplexing of two users simultaneously on the same physical resource in the circuit switched mode both in downlink and in uplink, using the same timeslot number, ARFCN and TDMA frame number. Hence, a basic physical channel capable of VAMOS supports up to 4 TCH channels along with their associated control channels (FACCH and SACCH).
The channel organization for TCH, FACCH and SACCH/T in VAMOS mode shall be done as described in 3GPP TS 45.002.
2) Upon receipt of the ASSIGNMENT COMMAND message, the mobile station initiates a local end release of link layer connections and packet resources, if in dual transfer mode, 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 main signalling links).
3) Upon receipt of the HANDOVER COMMAND message, the mobile station initiates, as described in sub-clause 3.1.4, the release of link layer connections, disconnects the physical channels (including the packet resources, if in class A mode of operation), 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).
Table 26.21.4.1: Channel Description 2 information element
|
Channel type and TDMA offset (octet 2) Bits 8 7 6 5 4 0 0 0 0 0 TCH/F + FACCH/F and SACCH/M at the timeslot indicated by TN, and additional bidirectional or undirectional TCH/Fs and SACCH/Ms according to the multislot allocation information element 0 0 0 0 1 TCH/F + FACCH/F and SACCH/F 0 0 0 1 T TCH/H + ACCHs 0 0 1 T T SDCCH/4 + SACCH/C4 or CBCH (SDCCH/4) 0 1 T T T SDCCH/8 + SACCH/C8 or CBCH (SDCCH/8) 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 1 1 1 0 T TCH/H + ACCHs using TSC Set 2 The T bits indicate the subchannel number coded in binary. In the description below "n" is the timeslot number indicated by TN. The description is valid only if all the indicated timeslot numbers are in the range 0 to 7. |
References
3GPP TS 45.001 subclause 13.1.
3GPP TS 44.018 subclauses 3.4.4.1, .10.5.2.5, .10.5.2.5a
26.21.4.2 Test purpose
To verify for mobile terminated call setup procedure (late assignment) and handover procedure that the MS applies correctly the assigned VAMOS TSC set.
26.21.4.3 Method of Test
Initial Conditions
System Simulator:
2 cells, default parameters.
Cell A: TSC as defined in table 26.21-1 Cell A TSC set for execution counter M.
Cell B: TSC as defined in table 26.21-1 Cell B TSC set for execution counter M.
Mobile Station:
in MM-state "idle, updated" with valid TMSI and CKSN
Specific PICS statements:
– VAMOS II supported ( TSPC_VAMOS_Type2)
– VAMOS III supported (TSPC_VAMOS_Type3)
– Speech supported for Full rate version 2 (TSPC_AddInfo_Full_rate_version_2).
– Speech supported for Full rate version 3 (TSPC_AddInfo_Full_rate_version_3)
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
A mobile terminated speech call is established. The network and the MS indicate Bearer capabilities IE with supported Full Rate channels. The call is established with a late assignment. VAMOS TSC set 2 according to table 26.21-1 (cell A) is assigned in ASSIGNMENT COMMAND. It is checked that the TCH is through connected in both directions. The SS sends HANDOVER COMMAND to a VAMOS channel with TSC set 2 according to table 26.21-1 (cell B). It is checked that the TCH is through connected in both directions on the new cell. The network initiates the call release.
The test is repeated for all full rate channel modes supported by the MS and non synchronized and finely synchronized handover procedure (see table 26.21-1).
Maximum Duration of Test
12 minutes
Expected Sequence
The test is executed for execution counter M = 1, 2 (optional), 3 (optional), 4, 5 (optional), 6 (optional).
|
Step |
Direction |
Message |
Comments |
|
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
Sent on the correct paging subchannel. |
|
2 |
MS -> SS |
CHANNEL REQUEST |
Establishment cause indicates "answer to paging". |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
|
|
4 |
MS -> SS |
PAGING RESPONSE |
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 |
SS -> MS |
SETUP |
Message contains the signal IE. |
|
11 |
MS -> SS |
CALL CONFIRMED |
|
|
A12 |
MS -> SS |
CONNECT |
|
|
B12 |
MS -> SS |
ALERTING |
|
|
B13 |
MS |
An alerting indication as defined in an PIXIT statement is given by the MS. |
|
|
B14 |
MS |
The MS is made to accept the call in the way described in a PIXIT statement. |
|
|
B15 |
MS -> SS |
CONNECT |
|
|
16 |
SS -> MS |
ASSIGNMENT COMMAND |
SS allocates full rate speech channel: M = 1, 4: FS M = 2, 5: EFS M = 3, 6: AFS SS allocates TSC from TSC set 2. |
|
17 |
MS -> SS |
ASSIGNMENT COMPLETE |
TSC set 2 according to table 26.21.4-1 (cell A) is used in uplink and downlink for this and the following messages. |
|
18 |
MS |
If the call is a speech call, the TCH shall be through connected in both directions. |
|
|
19 |
SS -> MS |
CONNECT ACKNOWLEDGE |
|
|
20 |
MS |
The appropriate bearer channel is through connected in both directions. |
|
|
According to table 26.21-1 ‘non synced’ (steps 21A to 23A) or ‘finely synced’ (steps (21B to 25B) handover are performed. |
|||
|
21A |
SS -> MS |
HANDOVER COMMAND |
See Specific message contents. |
|
22A |
MS -> SS |
HANDOVER ACCESS |
Transmitted on cell B. Repeated on every burst of the uplink main DCCH (and optionally the SACCH) until reception of PHYSICAL INFORMATION. Handover Reference as included in the HANDOVER COMMAND. |
|
23A |
SS -> MS |
PHYSICAL INFORMATION |
Sent after reception of n HANDOVER ACCESS messages. |
|
21B |
SS -> MS |
HANDOVER COMMAND |
See Specific Message Contents. |
|
22B |
MS -> SS |
HANDOVER ACCESS |
Transmitted on Cell B Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH |
|
23B |
MS -> SS |
HANDOVER ACCESS |
|
|
24B |
MS -> SS |
HANDOVER ACCESS |
|
|
25B |
MS -> SS |
HANDOVER ACCESS |
|
|
26 |
MS -> SS |
SABM |
Sent without information field. |
|
27 |
SS -> MS |
UA |
|
|
28 |
MS -> SS |
HANDOVER COMPLETE |
TSC set 2 according to table 26.21-1 (cell B) is used in uplink and downlink for this and the following messages. |
|
29 |
SS -> MS |
DISCONNECT |
|
|
30 |
MS -> SS |
RELEASE |
|
|
31 |
SS -> MS |
RELEASE COMPLETE |
|
|
32 |
SS -> MS |
CHANNEL RELEASE |
The main signalling link is released. |
Specific Message Content
Assignment Command (step 16)
|
Information Element |
value/remark |
|
CHANNEL DESCRIPTION 2 |
Channel Type and TDMA Offset Bits 8 7 6 5 4 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 |
|
CHANNEL MODE |
M=1 and 4: 0 0 0 0 0 0 0 1 speech full rate or half rate version 1 M=2 and 5: 0 0 1 0 0 0 0 1 speech full rate or half rate version 2 M=3 and 6: 0 1 0 0 0 0 0 1 speech full rate or half rate version 3 |
Handover Command (step 21A)
|
Information Element |
value/remark |
|
CHANNEL DESCRIPTION 2 |
Channel Type and TDMA Offset Bits 8 7 6 5 4 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 |
|
CHANNEL MODE |
M=1: 0 0 0 0 0 0 0 1 speech full rate or half rate version 1 M=2: 0 0 1 0 0 0 0 1 speech full rate or half rate version 2 M=3: 0 1 0 0 0 0 0 1 speech full rate or half rate version 3 |
|
Synchronization Indication IE |
Not included |
Handover Command (step 21B)
|
Information Element |
value/remark |
|
CHANNEL DESCRIPTION 2 |
Channel Type and TDMA Offset Bits 8 7 6 5 4 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 |
|
CHANNEL MODE |
M=4: 0 0 0 0 0 0 0 1 speech full rate or half rate version 1 M=5: 0 0 1 0 0 0 0 1 speech full rate or half rate version 2 M=6: 0 1 0 0 0 0 0 1 speech full rate or half rate version 3 |
|
Synchronization Indication |
|
|
– Report Observed Time Difference |
Shall not be included |
|
– Synchronization Indication |
"Synchronized" |
|
– Normal Cell Indication |
Ignore out of range timing advance |
26.21.5 VAMOS Signalling / MT VAMOS call / TSC assignment in DTM Assignment Command
26.21.5.1 Conformance requirements
1) VAMOS allows multiplexing of two users simultaneously on the same physical resource in the circuit switched mode both in downlink and in uplink, using the same timeslot number, ARFCN and TDMA frame number. Hence, a basic physical channel capable of VAMOS supports up to 4 TCH channels along with their associated control channels (FACCH and SACCH).
The channel organization for TCH, FACCH and SACCH/T in VAMOS mode shall be done as described in 3GPP TS 45.002.
2) Upon receipt of the ASSIGNMENT COMMAND message, the mobile station initiates a local end release of link layer connections and packet resources, if in dual transfer mode, 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 main signalling links).
3) A mobile station indicating support for VAMOS I, VAMOS II or VAMOS III (see 3GPP TS 24.008) shall support VAMOS mode of operation while in dual transfer mode. In case of DTM in A/Gb mode the training sequence for the packet data traffic channels (PDTCH) together with associated control channels shall have the same training sequence code (TSC) as the TSC of the traffic channel together with the associated control channels and shall be selected from TSC Set 1.
4) The mobile station shall act on the DTM ASSIGNMENT COMMAND message as specified in 3GPP TS 44.018.
Table 26.21.5.1: Channel Description information element
|
Channel type and TDMA offset (octet 2) Bits 8 7 6 5 4 S 0 0 0 1 TCH/F + ACCHs S 0 0 1 T TCH/H + ACCHs 0 0 1 T T SDCCH/4 + SACCH/C4 or CBCH (SDCCH/4); TSC Set 1 shall be used 0 1 T T T SDCCH/8 + SACCH/C8 or CBCH (SDCCH/8); TSC Set 1 shall be used The T bits indicate the subchannel number coded in binary. S, TSC set Bit 8 0 TSC Set 1 shall be used 1 TSC Set 2 shall be used All other values are reserved. |
References
3GPP TS 45.001 subclause 13.1.
3GPP TS 44.018 subclauses 10.5.2.5
3GPP TS 44.060 subclauses 7.1, 8.9.2.1
3GPP TS 45.002 subclauses 6.4.2.3
26.21.5.2 Test purpose
To verify that a VAMOS mobile is able to operate in DTM mode and packet data traffic channels together with associated control channels shall have the same TSC as TSC of the traffic channel together with associated control channels and shall be selected from TSC set 1
26.21.5.3 Method of Test
Initial Conditions
System Simulator:
1 cell, default parameters, DTM supported, TSC as defined in table 26.21-1 Cell A TSC set.
Mobile Station:
MS is GPRS attached and PDP Context 2 activated.
Specific PICS statements:
– VAMOS II supported ( TSPC_VAMOS_Type2)
– VAMOS III supported (TSPC_VAMOS_Type3)
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
A mobile terminated speech call is established. The network and the MS indicate Bearer capabilities IE with supported Full Rate channels. The call is established with a late assignment. VAMOS TSC set 2 according to table 26.21-1 (cell A) is assigned in ASSIGNMENT COMMAND. It is checked that the TCH is through connected in both directions. MS initiates a data transfer for 5000 octets. The SS sends DTM ASSIGNMENT COMMAND with uplink resources and channel description set to a VAMOS channel with TSC set 2 according to table 26.21-1 (cell A).It is checked that the TCH is through connected in both directions and the packet data traffic channels together with associated control channels shall have the same TSC as TSC of the traffic channel together with associated control channels and shall be selected from TSC set 1 The mobile initiates the call release after the completion of data transfer.
Maximum Duration of Test
10 minutes
Expected Sequence
|
Step |
Direction |
Message |
Comments |
|
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
Sent on the correct paging subchannel. |
|
2 |
MS -> SS |
CHANNEL REQUEST |
Establishment cause indicates "answer to paging". |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
|
|
4 |
MS -> SS |
PAGING RESPONSE |
Message is contained in SABM. |
|
5 |
MS -> SS |
CLASSMARK CHANGE |
|
|
6 |
MS -> SS |
GPRS INFORMATION |
The MS send this message to indicate Cell Update |
|
7 |
SS -> MS |
AUTHENTICATION REQUEST |
|
|
8 |
MS -> SS |
AUTHENTICATION RESPONSE |
SRES specifies correct value. |
|
9 |
SS -> MS |
CIPHERING MODE COMMAND |
SS starts deciphering after sending the message. |
|
10 |
MS -> SS |
CIPHERING MODE COMPLETE |
Shall be sent enciphered. All following messages shall be sent enciphered. |
|
11 |
SS |
SS starts ciphering. |
|
|
12 |
SS -> MS |
SETUP |
Message contains the signal IE. |
|
13 |
MS -> SS |
CALL CONFIRMED |
|
|
A14 |
MS -> SS |
CONNECT |
|
|
B14 |
MS -> SS |
ALERTING |
|
|
B15 |
MS |
An alerting indication as defined in an PIXIT statement is given by the MS. |
|
|
B16 |
MS |
The MS is made to accept the call in the way described in a PIXIT statement. |
|
|
B17 |
MS -> SS |
CONNECT |
|
|
18 |
SS -> MS |
ASSIGNMENT COMMAND |
SS allocates full rate speech channel: SS allocates TSC from TSC set 2. |
|
19 |
MS -> SS |
ASSIGNMENT COMPLETE |
TSC set 2 according to table 26.21.1 (cell A) is used in uplink and downlink for this and the following messages. |
|
20 |
MS |
If the call is a speech call, the TCH shall be through connected in both directions. |
|
|
21 |
SS -> MS |
CONNECT ACKNOWLEDGE |
The appropriate bearer channel is through connected in both directions. |
|
22 |
MS |
Trigger MS to initiate UL data transfer of 5000 octets |
|
|
23 |
MS -> SS |
DTM REQUEST |
|
|
24 |
SS -> MS |
DTM ASSIGNMENT COMMAND |
SS allocates TSC from TSC set 2 for the CS channel |
|
25 |
MS -> SS |
ASSIGNMENT COMPLETE |
|
|
26 |
MS -> SS |
{Completion of uplink RLC data block transfer} |
Macro as per section 40.4.3.10. |
|
27 |
SS |
Verify during step 26 that the MS is using the TSC assigned in step 24 but from the TSC set 1 |
|
|
28 |
SS -> MS |
DISCONNECT |
|
|
29 |
MS -> SS |
RELEASE |
|
|
30 |
SS -> MS |
RELEASE COMPLETE |
|
|
31 |
SS -> MS |
CHANNEL RELEASE |
The main signalling link is released. |
Specific Message Content
Assignment Command (step 18)
|
Information Element |
value/remark |
|
CHANNEL DESCRIPTION 2 |
Channel Type and TDMA Offset Bits 8 7 6 5 4 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 |
|
CHANNEL MODE |
0 0 0 0 0 0 0 1 speech full rate or half rate version 1 |
DTM ASSIGNMENT COMMAND (Step 24):
|
As default message contents except: |
|
|
Description of the CS Channel |
|
|
– Timeslot number |
N (chosen arbitrarily) |
|
– Channel Type and TDMA offset – Training Sequence Code |
1 0 0 0 1 TCH/F + ACCHs using TSC set 2 As defined in table 26.21.1 |
|
RR Packet Uplink Assignment IE |
|
|
– TIMESLOT_ALLOCATION |
(N 1) MOD 8 |
|
RR Packet Downlink Assignment IE |
Not included |
26.21.6 VAMOS Signalling / MS originated call / Handover between different traffic rates
26.21.6.1 Conformance requirements
1) VAMOS allows multiplexing of two users simultaneously on the same physical resource in the circuit switched mode both in downlink and in uplink, using the same timeslot number, ARFCN and TDMA frame number. Hence, a basic physical channel capable of VAMOS supports up to 4 TCH channels along with their associated control channels (FACCH and SACCH).
The channel organization for TCH, FACCH and SACCH/T in VAMOS mode shall be done as described in 3GPP TS 45.002.
2) Upon receipt of the ASSIGNMENT COMMAND message, the mobile station initiates a local end release of link layer connections and packet resources, if in dual transfer mode, 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 main signalling links).
3) Upon receipt of the HANDOVER COMMAND message, the mobile station initiates, as described in sub-clause 3.1.4, the release of link layer connections, disconnects the physical channels (including the packet resources, if in class A mode of operation), 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).
Table 26.21.6.2: Channel Description 2 information element
|
Channel type and TDMA offset (octet 2) Bits 8 7 6 5 4 0 0 0 0 0 TCH/F + FACCH/F and SACCH/M at the timeslot indicated by TN, and additional bidirectional or undirectional TCH/Fs and SACCH/Ms according to the multislot allocation information element 0 0 0 0 1 TCH/F + FACCH/F and SACCH/F 0 0 0 1 T TCH/H + ACCHs 0 0 1 T T SDCCH/4 + SACCH/C4 or CBCH (SDCCH/4) 0 1 T T T SDCCH/8 + SACCH/C8 or CBCH (SDCCH/8) 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 1 1 1 0 T TCH/H + ACCHs using TSC Set 2 The T bits indicate the subchannel number coded in binary. In the description below "n" is the timeslot number indicated by TN. The description is valid only if all the indicated timeslot numbers are in the range 0 to 7. |
References
3GPP TS 45.001 subclause 13.1.
3GPP TS 44.018 subclauses 3.4.4.1, .10.5.2.5, .10.5.2.5a
26.21.6.2 Test purpose
To verify that during a mobile originated call, the MS applies TSC set and different channel rates during handover from VAMOS to non VAMOS mode
26.21.6.3 Method of Test
Initial Conditions
System Simulator:
2 cells, default parameters.
Cell A: TSC as defined in table 26.21-1 Cell A TSC set for execution counter M.
Cell B: TSC as defined in table 26.21-1 Cell B TSC set for execution counter M.
Mobile Station:
in MM-state "idle, updated" with valid TMSI and CKSN
Specific PICS statements:
– VAMOS II supported ( TSPC_VAMOS_Type2)
– VAMOS III supported (TSPC_VAMOS_Type3)
– Speech supported for Full rate version 2 (TSPC_AddInfo_Full_rate_version_2).
– Speech supported for Full rate version 3 (TSPC_AddInfo_Full_rate_version_3)
– Speech supported for Half rate version 1 (TSPC_AddInfo_Half_rate_version_1).
– Speech supported for Half rate version 3 (TSPC_AddInfo_Half_rate_version_3).
PIXIT statements:
– Way to indicate mobile originated alerting.
Foreseen Final State of MS
"Idle, updated", with TMSI allocated.
Test Procedure
A mobile originated speech call is established. The network and the MS indicate Bearer capabilities IE with supported Half Rate channels. The call is established with a late assignment. VAMOS TSC set 2 according to table 26.21-1 (cell A) is assigned in ASSIGNMENT COMMAND. It is checked that the TCH is through connected in both directions. The SS sends HANDOVER COMMAND to a non VAMOS TSC according to table 26.21-1 (cell B). It is checked that the TCH is through connected in both directions on the new cell. The network initiates the call release.
The test is repeated for all half rate channel modes supported by the MS and non synchronized and finely synchronized handover procedure (see table 26.21-1).
Maximum Duration of Test
12 minutes
Expected Sequence
The test is executed for execution counter M = 1, 2, 3 , 4, 5, 6 according to the channels supported by the MS.
|
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 the supported speech versions. |
|
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 half rate speech channel: M = 1,4: HS M = 2,3,5,6: AHS SS allocates TSC from TSC set 2. |
|
15 |
MS->SS |
ASSIGNMENT COMPLETE |
TSC set 2 is used in uplink and downlink for this and the following messages. |
|
16 |
SS -> MS |
CONNECT |
|
|
17 |
MS -> SS |
CONNECT ACKNOWLEDGE |
|
|
18 |
MS |
The appropriate bearer channel is through connected in both directions. |
|
|
According to table 26.21-1 ‘non synced’ (steps 19A to 21A) or ‘finely synced’ (steps (19B to 23B) handover are performed. |
|||
|
19A |
SS -> MS |
HANDOVER COMMAND |
See Specific message contents. |
|
20A |
MS -> SS |
HANDOVER ACCESS |
Transmitted on cell B. Repeated on every burst of the uplink main DCCH (and optionally the SACCH) until reception of PHYSICAL INFORMATION. Handover Reference as included in the HANDOVER COMMAND. |
|
21A |
SS -> MS |
PHYSICAL INFORMATION |
Sent after reception of n HANDOVER ACCESS messages. |
|
19B |
SS -> MS |
HANDOVER COMMAND |
See Specific Message Contents. |
|
20B |
MS -> SS |
HANDOVER ACCESS |
Transmitted on Cell B Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH |
|
21B |
MS -> SS |
HANDOVER ACCESS |
|
|
22B |
MS -> SS |
HANDOVER ACCESS |
|
|
23B |
MS -> SS |
HANDOVER ACCESS |
|
|
24 |
MS -> SS |
SABM |
Sent without information field. |
|
25 |
SS -> MS |
UA |
|
|
26 |
MS -> SS |
HANDOVER COMPLETE |
TSC set 1 according to table 26.21-1 (cell B) is used in uplink and downlink for this and the following messages. |
|
27 |
SS -> MS |
DISCONNECT |
|
|
28 |
MS -> SS |
RELEASE |
|
|
29 |
SS -> MS |
RELEASE COMPLETE |
|
|
30 |
SS -> MS |
CHANNEL RELEASE |
The main signalling link is released. |
Specific Message Content
Assignment Command (step 14)
|
Information Element |
value/remark |
|
CHANNEL DESCRIPTION 2 |
Channel Type and TDMA Offset Bits 8 7 6 5 4 1 1 1 0 T TCH/H + ACCHs using TSC Set 2 M=1, 3, 5: T = 0 (subchannel 0) M=2, 4, 6: T = 1 (subchannel 1) |
|
CHANNEL MODE |
M=1, 4: 0 0 0 0 0 0 0 1 speech full rate or half rate version 1 M=2, 3, 5, 6: 0 1 0 0 0 0 0 1 speech full rate or half rate version 3 |
Handover Command (step 19A)
|
Information Element |
value/remark |
|
CHANNEL DESCRIPTION 2 |
Channel Type and TDMA Offset Bits 8 7 6 5 4 0 0 0 0 1 TCH/F + FACCH/F and SACCH/F |
|
CHANNEL MODE |
M=1: 0 0 0 0 0 0 0 1 speech full rate or half rate version 1 M=2: 0 0 1 0 0 0 0 1 speech full rate or half rate version 2 M=3: 0 1 0 0 0 0 0 1 speech full rate or half rate version 3 |
|
Synchronization Indication IE |
Not included |
Handover Command (step 19B)
|
Information Element |
value/remark |
|
CHANNEL DESCRIPTION 2 |
Channel Type and TDMA Offset Bits 8 7 6 5 4 0 0 0 0 1 TCH/F + FACCH/F and SACCH/F |
|
CHANNEL MODE |
M=4: 0 0 0 0 0 0 0 1 speech full rate or half rate version 1 M=5: 0 0 1 0 0 0 0 1 speech full rate or half rate version 2 M=6: 0 1 0 0 0 0 0 1 speech full rate or half rate version 3 |
|
Synchronization Indication |
|
|
– Report Observed Time Difference |
Shall not be included. |
|
– Synchronization Indication |
"Synchronized". |
|
– Normal Cell Indication |
Ignore out of range timing advance. |
26.21.7 VAMOS Signalling / Emergency call
26.21.7.1 Conformance requirements
1) VAMOS allows multiplexing of two users simultaneously on the same physical resource in the circuit switched mode both in downlink and in uplink, using the same timeslot number, ARFCN and TDMA frame number. Hence, a basic physical channel capable of VAMOS supports up to 4 TCH channels along with their associated control channels (FACCH and SACCH).
The channel organization for TCH, FACCH and SACCH/T in VAMOS mode shall be done as described in 3GPP TS 45.002.
2) Upon receipt of the ASSIGNMENT COMMAND message, the mobile station initiates a local end release of link layer connections and packet resources, if in dual transfer mode, 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 main signalling links).
Table 26.21.7.1: Channel Description 2 information element
|
Channel type and TDMA offset (octet 2) Bits 8 7 6 5 4 0 0 0 0 0 TCH/F + FACCH/F and SACCH/M at the timeslot indicated by TN, and additional bidirectional or unidirectional TCH/Fs and SACCH/Ms according to the multislot allocation information element 0 0 0 0 1 TCH/F + FACCH/F and SACCH/F 0 0 0 1 T TCH/H + ACCHs 0 0 1 T T SDCCH/4 + SACCH/C4 or CBCH (SDCCH/4) 0 1 T T T SDCCH/8 + SACCH/C8 or CBCH (SDCCH/8) 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 1 1 1 0 T TCH/H + ACCHs using TSC Set 2 The T bits indicate the subchannel number coded in binary. In the description below "n" is the timeslot number indicated by TN. The description is valid only if all the indicated timeslot numbers are in the range 0 to 7. |
References
3GPP TS 45.001 subclause 13.1.
3GPP TS 44.018 subclauses 3.4.3.1, .10.5.2.5
26.21.7.2 Test purpose
To verify for emergency call setup procedure that the MS applies the correct VAMOS TSC set allocated by ASSIGNMENT COMMAND message.
26.21.7.3 Method of Test
Initial Conditions
System Simulator:
1 cell, default parameters, TSC as defined in table 26.21-1 Cell A TSC set for execution counter M.
Mobile Station:
in MM-state "idle, updated" with valid TMSI and CKSN
Specific PICS statements:
– VAMOS II supported ( TSPC_VAMOS_Type2)
– VAMOS III supported (TSPC_VAMOS_Type3)
– Speech supported for Full rate version 2 (TSPC_AddInfo_Full_rate_version_2).
– Speech supported for Full rate version 3 (TSPC_AddInfo_Full_rate_version_3)
– Speech supported for Half rate version 1 (TSPC_AddInfo_Half_rate_version_1).
– Speech supported for Half rate version 3 (TSPC_AddInfo_Half_rate_version_3).
PIXIT statements:
– Way to indicate mobile originated alerting.
Foreseen Final State of MS
"Idle, updated", with TMSI allocated.
Test Procedure
The MS is made to initiate an emergency call. The network and the MS indicate Bearer capabilities IE with supported full rate and half rate channels. The emergency call is established with a late assignment. VAMOS TSC set 2 according to table 26.21-1 is assigned in ASSIGNMENT COMMAND. It is checked that the TCH is through connected in both directions. The network initiates the call release.
The test is repeated for all channel modes supported by the MS (see table 26.21-1).
Maximum Duration of Test
10 minutes
Expected Sequence
The test is executed for execution counter M = 1, 2 (optional), 3 (optional), 4 (optional), 5 (optional).
|
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 the supported speech versions. |
|
11 |
SS->MS |
CALL PROCEEDING |
|
|
12 |
SS->MS |
ALERTING |
|
|
13 |
SS->MS |
ASSIGNMENT COMMAND |
SS allocates a speech channel: M = 1: FS M = 2: EFS M = 3: AFS M = 4: HS M = 5: AHS SS allocates TSC from TSC set 2. |
|
14 |
MS->SS |
ASSIGNMENT COMPLETE |
TSC set 2 is used in uplink and downlink for this and the following messages. |
|
15 |
SS -> MS |
CONNECT |
|
|
16 |
MS -> SS |
CONNECT ACKNOWLEDGE |
|
|
17 |
MS |
The appropriate bearer channel is through connected in both directions. |
|
|
18 |
SS -> MS |
DISCONNECT |
|
|
19 |
MS -> SS |
RELEASE |
|
|
20 |
SS -> MS |
RELEASE COMPLETE |
|
|
21 |
SS -> MS |
CHANNEL RELEASE |
The main signalling link is released. |
Specific Message Content
Assignment Command (step 13)
|
Information Element |
value/remark |
|
CHANNEL DESCRIPTION 2 |
Channel Type and TDMA Offset For M = 1, 2, 3: Bits 8 7 6 5 4 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 For M = 4: Bits 8 7 6 5 4 1 1 1 0 1 TCH/H + ACCHs using TSC Set 2 (subchannel 1) For M = 5: Bits 8 7 6 5 4 1 1 1 0 0 TCH/H + ACCHs using TSC Set 2 (subchannel 0) |
|
CHANNEL MODE |
M=1,4: 0 0 0 0 0 0 0 1 speech full rate or half rate version 1 M=2: 0 0 1 0 0 0 0 1 speech full rate or half rate version 2 M=3,5: 0 1 0 0 0 0 0 1 speech full rate or half rate version 3 |
26.21.8 VAMOS Signalling / MS Originated call / Early assignment / Handover to different AMR codec rates
26.21.8.1 Conformance requirements
1) VAMOS allows multiplexing of two users simultaneously on the same physical resource in the circuit switched mode both in downlink and in uplink, using the same timeslot number, ARFCN and TDMA frame number. Hence, a basic physical channel capable of VAMOS supports up to 4 TCH channels along with their associated control channels (FACCH and SACCH).
The channel organization for TCH, FACCH and SACCH/T in VAMOS mode shall be done as described in 3GPP TS 45.002.
2) Upon receipt of the ASSIGNMENT COMMAND message, the mobile station initiates a local end release of link layer connections and packet resources, if in dual transfer mode, 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 main signalling links).
3) Upon receipt of the HANDOVER COMMAND message, the mobile station initiates, as described in sub-clause 3.1.4, the release of link layer connections, disconnects the physical channels (including the packet resources, if in class A mode of operation), 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).
Table 26.21.6.2: Channel Description 2 information element
|
Channel type and TDMA offset (octet 2) Bits 8 7 6 5 4 0 0 0 0 0 TCH/F + FACCH/F and SACCH/M at the timeslot indicated by TN, and additional bidirectional or unidirectional TCH/Fs and SACCH/Ms according to the multislot allocation information element 0 0 0 0 1 TCH/F + FACCH/F and SACCH/F 0 0 0 1 T TCH/H + ACCHs 0 0 1 T T SDCCH/4 + SACCH/C4 or CBCH (SDCCH/4) 0 1 T T T SDCCH/8 + SACCH/C8 or CBCH (SDCCH/8) 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 1 1 1 0 T TCH/H + ACCHs using TSC Set 2 The T bits indicate the subchannel number coded in binary. In the description below "n" is the timeslot number indicated by TN. The description is valid only if all the indicated timeslot numbers are in the range 0 to 7. |
References
3GPP TS 45.001 subclause 13.1.
3GPP TS 44.018 subclauses 3.4.4.1, .10.5.2.5, .10.5.2.5a
26.21.8.2 Test purpose
To verify that during a mobile originated call and after handover procedure the MS applies TSC set and different AMR codec rates in VAMOS mode.
26.21.8.3 Method of Test
Initial Conditions
System Simulator:
2 cells, default parameters.
Cell A: TSC as defined in table 26.21-1 Cell A TSC set for execution counter M.
Cell B: TSC as defined in table 26.21-1 Cell B TSC set for execution counter M.
Mobile Station:
in MM-state "idle, updated" with valid TMSI and CKSN
Specific PICS statements:
– VAMOS II supported ( TSPC_VAMOS_Type2)
– VAMOS III supported (TSPC_VAMOS_Type3)
– Speech supported for Full rate version 3 (TSPC_AddInfo_Full_rate_version_3)
– Speech supported for Half rate version 3 (TSPC_AddInfo_Half_rate_version_3).
PIXIT statements:
– Way to indicate mobile originated alerting.
Foreseen Final State of MS
"Idle, updated", with TMSI allocated.
Test Procedure
A mobile originated speech call is established. The network and the MS indicate Bearer capabilities IE with supported Half Rate channels. The call is established with a early assignment. VAMOS TSC set 2 and AMR codec rate according to table 26.21-1 (cell A) is assigned in ASSIGNMENT COMMAND. It is checked that the TCH is through connected in both directions. The SS sends HANDOVER COMMAND to another VAMOS TSC and different AMR codec rate according to table 26.21-1 (cell B). It is checked that the TCH is through connected in both directions on the new cell. The network initiates the call release.
The test is repeated for AMR half rate channel modes if supported by the MS (see table 26.21-1).
Maximum Duration of Test
12 minutes
Expected Sequence
The test is executed for execution counter M = 1, 2, 3 , 4 according to the channels supported by the MS.
|
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 the supported speech versions. |
|
11 |
SS->MS |
CALL PROCEEDING |
|
|
12 |
SS->MS |
ASSIGNMENT COMMAND |
SS allocates speech channel: M = 1,2: AFS M = 3,4: AHS SS allocates TSC from TSC set 2. |
|
13 |
MS->SS |
ASSIGNMENT COMPLETE |
TSC set 2 is used in uplink and downlink for this and the following messages. |
|
14 |
SS->MS |
ALERTING |
|
|
15 |
MS |
An alerting indication as defined in the PIXIT statement is given by the MS. |
|
|
16 |
SS -> MS |
CONNECT |
|
|
17 |
MS -> SS |
CONNECT ACKNOWLEDGE |
|
|
18 |
MS |
The appropriate bearer channel is through connected in both directions. |
|
|
19 |
SS -> MS |
HANDOVER COMMAND |
See Specific Message Contents. |
|
20 |
MS -> SS |
HANDOVER ACCESS |
Transmitted on Cell B Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH |
|
21 |
MS -> SS |
HANDOVER ACCESS |
|
|
22 |
MS -> SS |
HANDOVER ACCESS |
|
|
23 |
MS -> SS |
HANDOVER ACCESS |
|
|
24 |
MS -> SS |
SABM |
Sent without information field. |
|
25 |
SS -> MS |
UA |
|
|
26 |
MS -> SS |
HANDOVER COMPLETE |
TSC set 2 according to table 26.21-1 (cell B) is used in uplink and downlink for this and the following messages. |
|
27 |
MS |
The appropriate bearer channel is through connected in both directions. |
|
|
28 |
SS -> MS |
DISCONNECT |
|
|
29 |
MS -> SS |
RELEASE |
|
|
30 |
SS -> MS |
RELEASE COMPLETE |
|
|
31 |
SS -> MS |
CHANNEL RELEASE |
The main signalling link is released. |
Specific Message Content
Assignment Command (step 12)
|
Information Element |
value/remark |
|
CHANNEL DESCRIPTION 2 |
Channel Type and TDMA Offset M=1, 2: Bits 8 7 6 5 4 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 M=3, 4: Bits 8 7 6 5 4 1 1 1 0 1 TCH/H + ACCHs using TSC Set 2 |
|
CHANNEL MODE |
0 1 0 0 0 0 0 1 speech full rate or half rate version 3 |
|
Multi-Rate configuration |
codec rate according to table 26.21-1 (cell A) |
Handover Command (step 19)
|
Information Element |
Value/remark |
|
CHANNEL DESCRIPTION 2 |
Channel Type and TDMA Offset M=1, 3: Bits 8 7 6 5 4 1 1 0 0 0 TCH/F + ACCHs using TSC Set 2 M=2, 4: Bits 8 7 6 5 4 1 1 1 0 0 TCH/H + ACCHs using TSC Set 2 |
|
CHANNEL MODE |
0 1 0 0 0 0 0 1 speech full rate or half rate version 3 |
|
Synchronization Indication IE |
|
|
– Report Observed Time Difference |
Shall not be included. |
|
– Synchronization Indication |
"Synchronized". |
|
– Normal Cell Indication |
Ignore out of range timing advance. |
|
Multi-Rate configuration |
codec rate according to table 26.21-1 (cell B) |