42.7 Packet assignment/ TA Value

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

42.7.1 Void

42.7.2 Packet Assignment / TA Value/TA not present in Packet uplink assignment sent On the PACCH

42.7.2.1 Conformance requirements

If TIMING_ADVANCE_VALUE field is not provided in the assignment message, the mobile station shall use its previous timing advance (either assigned in the previous IMMEDIATE ASSIGNMENT message received on AGCH or in the previous PACKET UPLINK ASSIGNMENT message received on PAGCH, or got through the continuous timing advance procedure).

Reference

3GPP TS 04.60 subclause 7.1.3.5.

42.7.2.2 Test purpose

To verify that the mobile station considers the previous timing advance contained in the PACKET UPLINK ASSIGNMENT allocating the single block allocation for sending the PACKET RESOURCE REQUEST message. When receiving the PACKET UPLINK ASSIGNMENT for the uplink TBF allocation without Timing advance, MS shall use the timing advance value given in the initial PACKET UPLINK ASSIGNMENT message.

42.7.2.3 Method of test

Initial conditions

System Simulator:

1cell, supporting GPRS.

Mobile Station:

The MS is GPRS attached and in packet idle mode. PDP context 2 has been established.

Specific PICS Statements

PIXIT Statements

Test procedure

The MS initiates an uplink data transfer. The SS sends IMMEDIATE ASSIGNMENT with timing advance included with a single block allocation forcing two-phase access procedure. As response to the PACKET RESOURCE REQUEST message, the SS sends PACKET UPLINK ASSIGNMENT message on PACCH (not containing TA value). The MS shall complete the transfer of the uplink data.

Maximum duration of the test

2 minutes.

Expected sequence

Step

Direction

Message

Comments

1

MS

The MS is triggered to initiate packet uplink transfer of an LLC PDU consisting of 500 octets data.

2

MS -> SS

CHANNEL REQUEST

Received on RACH.

3

SS -> MS

IMMEDIATE ASSIGNMENT

Single block assignment, to order the MS to follow the two phase access procedure. Sent on AGCH. Including timing advance value.

4

MS -> SS

PACKET RESOURCE REQUEST

Two phase access procedure. Received on the single block assigned in step 3.

5

SS -> MS

PACKET UPLINK ASSIGNMENT

uplink dynamic allocation, no starting time, no timing advance value. Sent on PACCH of the same PDCH assigned in step 3.

6

SS

{Uplink data transfer}

Macro. Completion of the data transfer procedure.

Specific message contents

None

42.7.3 Packet Assignment / TA Value/ PACKET POWER CONTROL/TIMING ADVANCE during contention resolution

42.7.3.1 Conformance requirements

For a R97 and R98 MS only:

During the contention resolution, the mobile station may receive a non-distribution RLC/MAC control message addressing the mobile station by TLLI or the TFI value associated with the uplink TBF, other than the PACKET UPLINK ACK/NACK message. The mobile station may act on the other non-distribution messages, using the procedure defined for that message when it is received in packet transfer mode during operation on an uplink TBF (see clause 8).

For a R99 or later MS only:

During the contention resolution, the mobile station shall not accept a PACKET MEASUREMENT ORDER message, a PACKET CELL CHANGE ORDER message and a PACKET POWER CONTROL/TIMING ADVANCE message addressing the mobile station with the TFI value associated with the uplink TBF.

Reference:

For a R97 and R98 MS only:

3GPP TS 04.60 subclause 7.1.2.3.

For a R99 or later MS only:

3GPP TS 04.60/44.060 subclause 7.1.2.3a.

42.7.3.2 Test purpose

For a R97 and R98 MS only:

To verify that during contention resolution the mobile station may accept the PACKET POWER CONTROL/TIMING ADVANCE addressed with TFI.

For a R99 or later MS only:

To verify that during contention resolution the mobile station does not accept PACKET POWER CONTROL/TIMING ADVANCE addressed with TFI.

42.7.3.3 Method of test

Initial conditions

System Simulator:

1 cell supporting GPRS.

Mobile Station:

The MS is GPRS attached and in packet idle mode. PDP context 2 has been established.

Specific PICS Statements

– Release of GPRS Supported (TSPC_MS_GPRS_RELEASE)

PIXIT Statements

Test procedure

For a R97 and R98 MS only:

The MS is triggered to initiate uplink data transfer. The SS responds with IMMEDIATE ASSIGNMENT message that request one phase access and includes a Timing Advance Value field. The SS shall wait 2 seconds and then sends a PACKET POWER CONTROL/TIMING ADVANCE message with a valid timing advance information. The MS may accept this message even though the contention resolution was not solved. It is verified that the uplink transfer is successfully completed.

For a R99 or later MS only:

The MS is triggered to initiate uplink data transfer. The SS responds with IMMEDIATE ASSIGNMENT message that request one phase access and includes a Timing Advance Value field. The SS shall wait 2 seconds and then sends a PACKET POWER CONTROL/TIMING ADVANCE message with a valid timing advance information. The MS shall not consider this message since the contention resolution was not solved. It is verified that the uplink transfer is successfully completed.

Maximum duration of the test

2 minutes.

Expected sequence

Step

Direction

Message

Comments

1

MS

The MS is triggered to initiate packet uplink transfer of an LLC PDU consisting of 440 octets data.

2

MS -> SS

CHANNEL REQUEST

Received on RACH.

3

SS -> MS

IMMEDIATE ASSIGNMENT

Including Timing Advance Value. Indicating Packet UL Assignment struct. Sent on AGCH.

4

SS

PACKET DOWNLINK DUMMY CONTROL BLOCK

Assigning USF to the MS. Sent at least 3 block periods from the assignment in step 3.

5

MS->SS

RLC DATA BLOCK

with TLLI included

6

SS -> MS

PACKET POWER CONTROL/TIMING ADVANCE

Include a valid Timing Advance Index. Sent on PACCH. Addressing MS with TFI assigned in step 3.

7A

SS

For R97/R98 terminals:

SS waits 3 s. The MS may send access bursts on the PTCCH/U.

7B

SS

For R99 and later terminals:

SS waits 3 s and verifies that the MS does not send access burst on the PTCCH/U.

8

SS->MS

PACKET UPLINK ACK/NACK

Including the TFI and TLLI of the MS, finishing the contention resolution. Assigning USF to the MS.

9

SS

{Uplink data transfer }

Macro. Completion of the macro procedure.

Note: Step 7A is performed for R97/R98 terminals. Step 7B is performed for R99 and later terminals.

Specific message contents

None.

42.7.4 Packet Assignment / TA Value/TAI present/ multislot capabilities

42.7.4.1 Conformance requirements

If the PDCH containing the mobile station’s only assigned TAI value is removed, the mobile station shall, if it is performing an uplink TBF, perform an abnormal release with access retry.

Reference

3GPP TS 04.60 subclause 8.7.

42.7.4.2 Test purpose

To verify that If the PDCH containing the mobile station’s only assigned TAI value is removed, the mobile station shall, if it is performing an uplink TBF, perform an abnormal release with access retry.

42.7.4.3 Method of test

Initial conditions

System Simulator:

1 cell supporting GPRS. SI13, ACCESS_BURST_TYPE indicates 8 bits access.

Mobile Station:

The MS is GPRS attached and in packet idle mode. PDP context 2 has been established.

Specific PICS Statements

PIXIT Statements

Test procedure

The MS is triggered to initiate uplink data packet transfer. The SS responds with IMMEDIATE ASSIGNMENT message for two phase access. The PACKET UPLINK ASSIGNMENT message contains a Timing Advance Index. The MS shall start to send data on the allocated uplink. The SS allows the MS to send the uplink data transfer. During the uplink data transfer, the SS shall verify that the access bursts are sent correctly (by the MS) in the PTCCH. Then PDCH containing the mobile station’s only assigned TAI value is removed. Verify that MS perform an abnormal release with access retry.

Maximum duration of the test

2 minutes.

Expected sequence

Step

Direction

Message

Comments

1

MS

The MS is triggered to initiate packet uplink transfer of 2000 octets data.

2

MS -> SS

CHANNEL REQUEST

Received on RACH.

3a

SS -> MS

IMMEDIATE ASSIGNMENT

Single block allocation.

3b

MS->SS

PACKET RESOURCE REQUEST

3c

SS -> MS

PACKET UPLINK ASSIGNMENT

Including Timing Advance Index = 0 (on TN0), Dynamic allocation struct.

Sent on PDCH. Assigning TN0 and TN1

4

MS->SS

PACKET DOWNLINK DUMMY CONTROL BLOCK

USF assigned to MS, sent on TN0

5

MS->SS

UPLINK RLC DATA BLOCK

Received on PDCH0

6

SS->MS

PACKET UPLINK ACK/NACK

With correct TLLI (to complete the contention resolution).

7

SS->MS

PACKET DOWNLINK DUMMY CONTROL BLOCKS

USFs assigned to MS on TN0 and TN1

8

MS->SS

UPLINK RLC DATA BLOCKS

Received on both PDCH0 and PDCH1

9

SS

Repeat steps 7 and 8 20 times.

10

SS->MS

PACKET PDCH RELEASE

Sent on PACCH of PDCH0 with TIMESLOTS_AVAILABLE indicating that only timeslot 1 is available

11

SS

Verify that MS did not continue on both PDCH0 and PDCH1 (max 6 blocks should be received)

12

MS->SS

CHANNEL REQUEST

MS re-initiates the packet access procedure

Verification

During the uplink data transfer (steps 3b to 9) the SS monitors the access burst on PTCCH which are located on slots with numbers FN, such that (FN mod (8*52)) = 12 for Timing Advance Index = 0 (3GPP TS 03.64 subclause 6.5.7.2 and 3GPP TS 05.02 table 6). The access burst contents shall be MESSAGE_TYPE = 011111 and CTRL_ACK = 11.

Specific message contents

None.

42.7.5 Packet Assignment / TA Value/ Update of TA using PACKET POWER CONTROL/TIMING ADVANCE

42.7.5.1 Conformance requirements

The timing advance could be updated using a PACKET POWER CONTROL /TIMING ADVANCE message.

Reference

3GPP TS 04.60 subclause 7.2.2.1.

42.7.5.2 Test purpose

To verify that the mobile station is able to use the updated value received in a PACKET POWER CONTROL/TIMING ADVANCE message.

42.7.5.3 Method of test

Initial conditions

System Simulator:

1 cell supporting GPRS.

Mobile Station:

The MS is GPRS attached and in packet idle mode. PDP context 2 has been established.

Specific PICS Statements

PIXIT Statements

Test procedure

The MS is triggered to initiate uplink data transfer. The SS responds with IMMEDIATE ASSIGNMENT message that request one phase access with Timing Advance Value field (=30bits). After contention resolution SS sends a PACKET POWER CONTROL/TIMING ADVANCE message with TA different from the assigned one. The SS verifies that MS is able to use the value received in PACKET POWER CONTROL/TIMING ADVANCE.

Maximum duration of the test

2 minutes.

Expected sequence

Step

Direction

Message

Comments

1

MS

The MS is triggered to initiate packet uplink transfer of an LLC PDU consisting of 440 octets data.

2

MS -> SS

CHANNEL REQUEST

Received on RACH.

3

SS -> MS

IMMEDIATE ASSIGNMENT

Timing Advance Value=30. Indicating Packet UL Assignment struct. Sent on AGCH.

4

SS->MS

PACKET DOWNLINK DUMMY CONTROL BLOCK

Sent on PACCH with USF assigned to MS

5

MS->SS

UPLINK RLC DATA BLOCK

Received on the assigned PDTCH.

6

SS->MS

PACKET UPLINK ACK/NACK

Sent on the PACCH with correct TLLI.

7

SS -> MS

PACKET POWER CONTROL/TIMING ADVANCE

Include a valid Timing Advance information. Sent on PACCH. Addressing MS with TFI assigned in step 3.

With TA different from the previous value.

(Change SS TA parameters)

8

SS -> MS

PACKET DOWNLINK DUMMY CONTROL BLOCK

Sent on PACCH with USF assigned to MS.

9

MS -> SS

UPLINK RLC DATA BLOCK

Sent on the PACCH with correct TLLI. Verify that MS uses the updated value sent in message of step 7.

10

SS<-> MS

Completion of macro {Uplink data transfer}

Specific message contents

None.

42.7.6 Packet Uplink Assignment / Timing Advance / TA Index change

42.7.6.1 Conformance requirements

If a Timing Advance Index is included in the assignment message, the mobile station shall use the continuous update timing advance mechanism, using its allocation on PTCCH (see 3GPP TS 05.10). If MS receives an other value of TAI in a PACKET POWER CONTROL /TIMING ADVANCE message, it shall use it.

Reference

3GPP TS 04.60 subclause 7.1.2.5.

3GPP TS 03.64 subclause 6.5.7.2.

42.7.6.2 Test purpose

To verify that the mobile station is able to update Timing Advance Index when received as part of PACKET POWER CONTROL /TIMING ADVANCE

42.7.6.3 Method of test

Initial conditions

System Simulator:

1 cell supporting GPRS. SI13, ACCESS_BURST_TYPE indicates 8 bits access.

Mobile Station:

The MS is GPRS attached and in packet idle mode. PDP context 2 has been established.

Specific PICS Statements

PIXIT Statements

Test procedure

The MS is triggered to initiate uplink data packet transfer. The SS responds with IMMEDIATE ASSIGNMENT message for two phase access. The PACKET UPLINK ASSIGNMENT message contains a Timing Advance Index. The MS shall start to send data on the allocated uplink. The SS allows the MS to send the uplink data transfer. During the Uplink data transfer, the SS shall verify that MS sends access bursts correctly in the PTCCH frames. The SS completes the contention resolution by including the TLLI of the MS in the PACKET UPLINK ACK/NACK message. Then SS sends PACKET POWER CONTROL /TIMING ADVANCE with new Timing advance index. Then SS verifies that MS uses correctly these values.

Maximum duration of the test

2 minutes.

Expected sequence

Step

Direction

Message

Comments

1

MS

The MS is triggered to initiate packet uplink transfer of 2000 octets data.

2

MS -> SS

CHANNEL REQUEST

Received on RACH.

3a

SS -> MS

IMMEDIATE ASSIGNMENT

Single block allocation.

3b

MS->SS

PACKET RESOURCE REQUEST

3c

SS -> MS

PACKET UPLINK ASSIGNMENT

Including Timing Advance Index = 0, Dynamic allocation struct.

4

SS->MS

PACKET DOWNLINK DUMMY CONTROL BLOCK

USF assigned to MS.

5

MS->SS

UPLINK RLC DATA BLOCK

Received on the PDTCH

6

SS->MS

PACKET UPLINK ACK/NACK

USF assigned to MS. Including the TLLI of MS in the CONTENTION_RESOLUTION_TLLI field

7

MS->SS

UPLINK RLC DATA BLOCK

Received on the PDTCH

8

Repeat steps 6 and 7 20 times; excluding the TLLI for the contention resolution in step 6.

9

SS -> MS

PACKET POWER CONTROL/TIMING ADVANCE

Include a different Timing Advance Index (=2). Sent on PACCH 6 blocks before the MS PTCCH channel. Addressing MS with TFI assigned in step 3.

10

SS->MS

PACKET DOWNLINK DUMMY CONTROL BLOCK

USF assigned to MS. Sent after the 4 multiframes and 3 blocks of sending the message in step 9.

11

{Uplink data transfer}

Macro. Completion of data transfer. Verification, see below.

Verification

During the uplink data transfer in steps 3 to 8 the SS monitors the access burst on PTCCH which are located on slots with numbers FN, such that (FN mod (8*52)) = 12 for Timing Advance Index = 0 (3GPP TS 03.64/6.5.7.2 and 3GPP TS 05.02 table 6). The access burst contents shall be MESSAGE_TYPE = 011111 and CTRL_ACK = 11.

During the uplink transfer in steps 9 to 11 the SS continues monitoring the access burst on PTCCH such that (FN mod (8*52)) = 64 (TAI =2).

Specific message contents

None.

42.7.7 Void