26.6.13 Test of starting time
3GPP51.010-1Mobile Station (MS) conformance specificationPart 1: Conformance specificationTS
The Assignment, Handover and immediate assignment procedures can include a delayed change of frequency list, MAIO and HSN. This series of tests checks the behaviour of the Mobile Station when receiving channel allocation messages with a starting time and channel description for both before and after the starting time. Tests checking the phase 1 usage of the starting time (that is without a channel description for before the time) are included in the series related to immediate assignment, dedicated assignment and handover.
Throughout subclause 26.6.13 the defaults in the following subclauses
Table 26.6
Band |
Defaults sub-clause |
GSM 450 |
26.6.16 |
GSM 480 |
26.6.17 |
GSM 710 |
26.6.21 |
GSM 750 |
26.6.19 |
T-GSM 810 |
26.6.22 |
GSM 850 |
26.6.20 |
GSM 900 |
26.6.14 |
DCS 1 800 |
26.6.15 |
PCS 1 900 |
26.6.18 |
are used with the following exceptions:
Contents of IMMEDIATE ASSIGNMENT message, unless otherwise defined in the individual test cases:
L2 pseudo length |
This is the sum of the lengths of all the information elements present in the message except for the IA rest octets and L2 pseudo length IEs. For the default message the L2 pseudo length is 11. |
Protocol Discriminator |
RR Management. |
Skip Indicator |
0000 |
Message Type |
00111111 |
Page Mode |
|
– Page Mode |
Normal Paging. |
Channel Description |
|
– Channel Type and TDMA offset |
Chosen arbitrarily (see initial conditions). |
– Timeslot Number |
Chosen arbitrarily by the test house; |
– Training Sequence Code |
Chosen arbitrarily by the test house |
– Hopping |
Yes. |
– Hopping parameters |
Chosen arbitrarily. |
Request Reference |
Pertaining to last Channel Request sent by the MS. |
Timing Advance |
|
– Timing advance value |
30 bit periods. |
Mobile Allocation |
Chosen arbitrarily, at least one frequency. In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
Starting Time |
Not present. |
IA rest octets |
Not used (all bits set to spare). |
Two cells are defined:
Band |
Cell A |
Cell B |
CA Coding format – both cells |
||
BCCH ARFCN |
Cell allocation |
BCCH ARFCN |
Cell allocation |
||
GSM 450 |
263 |
259, 261, 263, 265, 267, 269, 271, 273, 275, 277, 279, 281, 283, 285, 287, 289, 291 |
274 |
260, 262, 264, 266, 268, 270, 272, 274, 276, 279, 281, 283, 285, 287, 289, 291 |
Range 128 |
GSM 480 |
310 |
306, 308, 310, 312, 314, 316, 318, 320, 322, 324, 326, 328, 330, 332, 334, 336, 338 |
321 |
307, 309, 311, 313, 315, 317, 319, 321, 323, 326, 328, 330, 332, 334, 336, 338 |
Range 128 |
GSM 710 |
457 |
447, 454, 457, 463, 471, 479, 482 ,483 ,489, 496, 498, 500, 501, 502, 503, 506, 508 |
477 |
451, 455, 459, 461, 467, 468, 475, 477, 497, 498, 500, 501, 502, 503, 506, 508 |
Range 128 |
GSM 750 |
457 |
447, 454, 457, 463, 471, 479, 482 ,483 ,489, 496, 498, 500, 501, 502, 503, 506, 508 |
477 |
451, 455, 459, 461, 467, 468, 475, 477, 497, 498, 500, 501, 502, 503, 506, 508 |
Range 128 |
T-GSM 810 |
457 |
447, 454, 457, 463, 471, 479, 482 ,483 ,489, 496, 498, 500, 501, 502, 503, 506, 508 |
477 |
451, 455, 459, 461, 467, 468, 475, 477, 497, 498, 500, 501, 502, 503, 506, 508 |
Range 128 |
GSM 850 |
147 |
137, 144, 147, 153, 161, 169, 172, 173, 179, 186, 193, 200, 201, 202, 203, 235, 241 |
167 |
141, 145, 149, 151, 157, 158, 165, 167, 187, 193, 200, 201, 202, 203, 235, 241 |
Range 128 |
GSM 900 |
20 |
10, 17, 20, 26, 34, 42, 45, 46, 52, 59, 66, 73, 74, 75, 76, 108, 114 |
40 |
14, 18, 22, 24, 30, 31, 38, 40, 60, 66, 73, 74, 75, 76, 108, 114 |
Bitmap 0 |
DCS 1 800 |
747 |
737, 741, 747, 754, 759, 762, 766, 767, 773, 775, 779, 782, 791, 798, 829, 832, 844 |
764 |
739, 743, 746, 749, 756, 758, 761, 764, 771, 779, 782, 791, 798, 829, 832, 844 |
Range 256 |
PCS 1 900 |
647 |
637, 641, 647, 654, 659, 662, 666, 667, 673, 675, 679, 682, 691, 698, 729, 732, 744 |
664 |
639, 643, 646, 649, 656, 658, 661, 664, 671, 679, 682, 691, 698, 729, 732, 744 |
Range 256 |
For DCS 1 800, PCS 1 900 the BCCH ARFCNs shall be added to the default BA-List.
For all other bands the BCCH ARFCNs are already included in the default BA-List.
26.6.13.1 Dedicated assignment with starting time / successful case / time not elapsed
26.6.13.1.1 Conformance requirement
A Mobile Station receiving an ASSIGNMENT COMMAND message with a starting time and channel descriptions for both after and before the starting time, and ready to access before the indicated time has elapsed, shall perform the assignment on the channels as described for before the starting time and shall start using the new frequency parameters (frequencies and hopping sequence, or single frequency) in the correct time slot indicated by the starting time.
The Mobile Station shall accept the ASSIGNMENT COMMAND message for different message formatting, differing by the information elements used to describe frequency lists.
Reference(s)
3GPP TS 04.08 / 3GPP TS 44.018 subclauses 3.4.3.1 and 9.1.2.
26.6.13.1.2 Test purpose
To verify that the MS, after receiving an ASSIGNMENT COMMAND message with a starting time and channel descriptions both for before and after the starting time, and ready to access before the indicated time, performs correctly the assignment using the description for before the time, and eventually starts using the frequency parameters for after the time at the time indicated in the message.
26.6.13.1.3 Method of test
Initial condition(s)
System Simulator:
1 cell, CCCH_CONF set to 1 basic physical channel used for CCCH, not combined with SDCCHs.
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated.
Specific PICS statements
– MS supports only SDCCH (TSPC_AddInfo_SDCCHOnly)
– MS supports GSM HR (TSPC_AddInfo_Halfrate)
PIXIT statements
–
Foreseen final state of the MS
"Idle, updated", with TMSI allocated.
Test procedure
The System Simulator pages the MS and after the MS has responded with a CHANNEL REQUEST, the simulator assigns a hopping SDCCH. Then the SS sends an ASSIGNMENT COMMAND message allocating a channel (TCH/F, TCH/H or SDCCH, arbitrarily chosen among the channels supported), with a starting time and channel descriptions (hopping case) for both before and after the starting time, as detailed in the "specific message contents" clause. The indicated time is such that the Mobile Station is ready to access before that time. The Mobile Station then accesses the channel as described for before the starting time. The MS shall eventually, at the TDMA frame defined by the contents of the "Starting Time" information element of the ASSIGNMENT COMMAND message, use the new frequency parameters . The verification is performed at the RF burst level.
Test parameters:
T1 is set to T0+1000 (mod 42 432), where T0 is the frame number at which the first burst of the ASSIGNMENT COMMAND message is sent.
Maximum duration of test
45 s.
Expected sequence
Step |
Direction |
Message |
Comments |
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
|
2 |
MS -> SS |
CHANNEL REQUEST |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
Hopping channel. |
4 |
MS -> SS |
PAGING RESPONSE |
|
5 |
SS -> MS |
ASSIGNMENT COMMAND |
See specific message contents. |
6 |
MS -> SS |
ASSIGNMENT COMPLETE |
Sent on the correct channel (before time parameters) after establishment of the main signalling link. |
7 |
——– |
Time T1 |
The SS checks that the MS is transmitting now on the correct frequencies (after time parameters) and that the transmission started in the correct frame. |
8 |
SS -> MS |
CHANNEL RELEASE |
Specific message contents
ASSIGNMENT COMMAND
Information element |
Value/remark |
Channel Description, after time |
|
Channel Type and TDMA offset |
Chosen arbitrarily among that supported by the Mobile Station. |
Timeslot Number |
Chosen arbitrarily. |
Training Sequence Code |
Chosen arbitrarily. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily. |
Power Command |
|
Power level |
Chosen arbitrarily. |
Channel Mode |
|
Mode |
Signalling Only. |
Mobile Allocation, after time |
Chosen arbitrarily, at least one frequency. In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
Starting Time |
T1 |
Channel Description, before time |
|
Channel Type and TDMA offset |
Same as after time. |
Timeslot Number |
Same as after time. |
Training Sequence Code |
Same as after time. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily, different from "after time". |
Mobile Allocation, before time |
Chosen arbitrarily, at least one frequency and different from "Mobile Allocation, after time". In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
26.6.13.2 Dedicated assignment with starting time / successful case / time elapsed
26.6.13.2.1 Conformance requirement
A Mobile Station receiving an ASSIGNMENT COMMAND message with a starting time and channel descriptions for both after and before the starting time, and ready to access after the indicated time has elapsed, shall perform the assignment on the channels as described for after the starting time.
The Mobile Station shall accept the ASSIGNMENT COMMAND message for different message formattings, differing by the information elements used to describe frequency lists.
Reference(s):
3GPP TS 04.08 / 3GPP TS 44.018 subclauses 3.4.3.1 and 9.1.2.
26.6.13.2.2 Test purpose
To verify that the MS, after receiving an ASSIGNMENT COMMAND message with a starting time and channel descriptions both for before and after the starting time, performs correctly the assignment using the frequency parameters for after the time if the indicated time has already elapsed when the Mobile Station is ready to transmit.
26.6.13.2.3 Method of test
Initial condition(s)
System Simulator:
1 cell, CCCH_CONF set to 1 basic physical channel used for CCCH, not combined with SDCCHs.
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated.
Specific PICS statements
– MS supports only SDCCH (TSPC_AddInfo_SDCCHOnly)
– MS supports GSM HR (TSPC_AddInfo_Halfrate)
PIXIT statements
–
Foreseen final state of the MS
"Idle, updated", with TMSI allocated.
Test procedure
The System Simulator pages the MS and after the MS has responded with a CHANNEL REQUEST, the simulator assigns a hopping SDCCH. Then the SS sends an ASSIGNMENT COMMAND message allocating a channel (TCH/F, TCH/H or SDCCH, arbitrarily chosen among the channels supported), with a starting time and channel descriptions (hopping case) for both before and after the starting time, as detailed in the "specific message contents" clause. The indicated time is such that the Mobile Station is ready to access only after that time. The Mobile Station then accesses the channel as described for after the starting time. The verification is performed at the RF burst level.
Test parameters:
T1 is set to T0+5 (mod 42 432), where T0 is the frame number at which the first burst of the ASSIGNMENT COMMAND message is sent.
Maximum duration of test
45 s.
Expected sequence
Step |
Direction |
Message |
Comments |
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
|
2 |
MS -> SS |
CHANNEL REQUEST |
Hopping channel. |
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
|
4 |
MS -> SS |
PAGING RESPONSE |
|
5 |
SS -> MS |
ASSIGNMENT COMMAND |
See specific message contents. |
6 |
MS -> SS |
ASSIGNMENT COMPLETE |
Sent on the correct channel (after time parameters) after establishment of the main signalling link. |
7 |
SS -> MS |
CHANNEL RELEASE |
Specific message contents
ASSIGNMENT COMMAND
Information element |
Value/remark |
Channel Description, after time |
|
Channel Type and TDMA offset |
Chosen arbitrarily among that supported by the Mobile Station. |
Timeslot Number |
Chosen arbitrarily. |
Training Sequence Code |
Chosen arbitrarily. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily. |
Power Command |
|
Power level |
Chosen arbitrarily. |
Channel Mode |
|
Mode |
Signalling Only. |
Mobile Allocation, after time |
Chosen arbitrarily, at least one frequency. In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
Starting Time |
T1 |
Channel Description, before time |
|
Channel Type and TDMA offset |
Same as after time. |
Timeslot Number |
Same as after time. |
Training Sequence Code |
Same as after time. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily, different from "after time". |
Mobile Allocation, before time |
Chosen arbitrarily, at least one frequency and different from "Mobile Allocation, after time". In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
26.6.13.3 Dedicated assignment with starting time and frequency redefinition / failure case / time not elapsed
26.6.13.3.1 Conformance requirement
An MS, after receiving a FREQUENCY REDEFINITION message, shall keep the provided information until the time is elapsed. The Mobile Station must accept an intervening dedicated assignment, and, in case of failure of this assignment resulting in a return to the old channel before the time indicated in the FREQUENCY REDEFINITION message, shall return on the old channel with the frequency parameters in use at the moment of the reception of the FREQUENCY REDEFINITION message, and shall eventually start using the new frequency parameters in the correct time slot indicated by the starting time of the FREQUENCY REDEFINITION message.
Reference(s):
3GPP TS 04.08 / 3GPP TS 44.018 subclauses 3.4.3 and 3.4.5.
26.6.13.3.2 Test purpose
To verify that the MS, after receiving a FREQUENCY REDEFINITION and then an ASSIGNMENT COMMAND message with a starting time and channel descriptions both for before and after the starting time, failing the assignment and returning on the old channel, and ready to access before the time indicated in the FREQUENCY REDEFINITION, resumes transmission on the channels used at the time of the reception of the FREQUENCY REDEFINITION message and eventually starts using the new frequency parameters at the time indicated in the FREQUENCY REDEFINITION message.
26.6.13.3.3 Method of test
Initial condition(s)
System Simulator:
1 cell, CCCH_CONF set to 1 basic physical channel used for CCCH, not combined with SDCCHs.
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated.
Specific PICS statements
– MS supports only SDCCH (TSPC_AddInfo_SDCCHOnly)
– MS supports GSM HR (TSPC_AddInfo_Halfrate)
PIXIT statements
–
Foreseen final state of the MS
"Idle, updated", with TMSI allocated.
Test procedure
The System Simulator pages the MS and after the MS has responded with a CHANNEL REQUEST, the simulator assigns allocating a hopping channel (TCH/F, TCH/H or SDCCH, arbitrarily chosen among the channels supported). Then the SS sends a FREQUENCY REDEFINITION message (starting time T1), which modifies the frequency parameters to be used by the MS. Then the SS sends an ASSIGNMENT COMMAND message, with a starting time (T2) and channel descriptions for both before and after the starting time. The channels and hopping sequences so allocated are distinct from those used and from those described by the FREQUENCY REDEFINITION message. The System Simulator does not activate the channels defined in the ASSIGNMENT COMMAND. The MS shall try to activate the new channel (this is not verified) and shall then reactivate the old channel and trigger the establishment of the main signalling link on the old channel. Then the MS shall send an ASSIGNMENT FAILURE message. Time T1 is chosen so it is reached only after the sending of the ASSIGNMENT FAILURE message. The MS shall eventually, at the TDMA frame defined by the contents of the "Starting Time" information element of the FREQUENCY REDEFINITION message, use the new frequency parameters. The verification is performed at the RF burst level.
Test parameters:
T1 is set to T0+5000 (mod 42 432), where T0 is the frame number at which the first burst of the FREQUENCY REDEFINITION message is sent.
T2 is set to T0+4000 (mod 42 432), where T0 is the frame number at which the first burst of the FREQUENCY REDEFINITION message is sent.
Maximum duration of test
180 s.
Expected sequence
Step |
Direction |
Message |
Comments |
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
|
2 |
MS -> SS |
CHANNEL REQUEST |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
Hopping channel. |
4 |
MS -> SS |
PAGING RESPONSE |
|
4A |
SS -> MS |
IDENTITY REQUEST |
Identity type : IMSI |
4B |
MS -> SS |
IDENTITY RESPONSE |
The response is not checked by the SS |
5 |
SS -> MS |
FREQUENCY REDEFINITION |
|
6 |
SS -> MS |
ASSIGNMENT COMMAND |
Hopping channel, type among possible, signalling mode. |
7 |
MS -> SS |
ASSIGNMENT FAILURE |
Sent on the correct channel (original parameters) after establishment of the main signalling link. |
8 |
——– |
Time T1 |
The SS checks that the MS is transmitting now on the correct frequencies (parameters of the FREQUENCY REDEFINITION message) and that the transmissions started in the correct frame. |
9 |
SS -> MS |
CHANNEL RELEASE |
Specific message contents
FREQUENCY REDEFINITION
Information element |
Value/remark |
Channel Description |
|
Channel Type and TDMA offset |
Same as in IMMEDIATE ASSIGNMENT |
Timeslot Number |
Same as in IMMEDIATE ASSIGNMENT |
Training Sequence Code |
Same as in IMMEDIATE ASSIGNMENT |
Hopping |
Yes |
Hopping parameters |
Chosen arbitrarily, different than those of the IMMEDIATE ASSIGNMENT message, HSN same as in IMMEDIATE ASSIGNMENT. |
Mobile Allocation |
Chosen arbitrarily, at least two frequencies, different than those of the IMMEDIATE ASSIGNMENT message. |
Starting Time |
T1 |
ASSIGNMENT COMMAND:
Information element |
Value/remark |
Channel Description, after time |
|
Channel Type and TDMA offset |
Chosen arbitrarily among that supported by the Mobile Station. |
Timeslot Number |
Chosen arbitrarily. |
Training Sequence Code |
Chosen arbitrarily. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily. |
Power Command |
|
Power level |
Chosen arbitrarily. |
Channel Mode |
|
Mode |
Signalling Only. |
Mobile Allocation, after time |
Chosen arbitrarily, at least two frequency. |
Starting Time |
T2 |
Channel Description, before time |
|
Channel Type and TDMA offset |
Same as after time. |
Timeslot Number |
Same as after time. |
Training Sequence Code |
Same as after time. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily, different from "after time". |
Mobile Allocation, before time |
Chosen arbitrarily, at least two frequencies, different from "Mobile Allocation, after time". |
26.6.13.4 Dedicated assignment with starting time and frequency redefinition / failure case / time elapsed
26.6.13.4.1 Conformance requirement
An MS, after receiving a FREQUENCY REDEFINITION message, shall keep the provided information until the time is elapsed. The Mobile Station must accept an intervening dedicated assignment, and, in case of failure of this assignment resulting in a return to the old channel after the time indicated in the FREQUENCY REDEFINITION message, shall return on the old channel with the frequency parameters indicated in the FREQUENCY REDEFINITION message.
Reference(s):
3GPP TS 04.08 / 3GPP TS 44.018 subclauses 3.4.3 and 3.4.5.
26.6.13.4.2 Test purpose
To verify that the MS, after receiving a FREQUENCY REDEFINITION and then an ASSIGNMENT COMMAND message with a starting time and channel descriptions both for before and after the starting time, failing the assignment and returning on the old channel, and ready to access after the time indicated in the FREQUENCY REDEFINITION, resumes transmission using the new frequency parameters indicated in the FREQUENCY REDEFINITION message.
26.6.13.4.3 Method of test
Initial condition(s)
System Simulator:
1 cell, CCCH_CONF set to 1 basic physical channel used for CCCH, not combined with SDCCHs.
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated.
Specific PICS statements
–
PIXIT statements
–
Foreseen final state of the MS
"Idle, updated", with TMSI allocated.
Test procedure
The System Simulator pages the MS and after the MS has responded with a CHANNEL REQUEST, the simulator assigns allocating a hopping channel (SDCCH). Then the SS sends a FREQUENCY REDEFINITION message (starting time T1), which modifies the frequency parameters to be used by the MS. Then the SS sends an ASSIGNMENT COMMAND message, with a starting time (T2) and channel descriptions for both before and after the starting time. Time T1 is chosen so it is reached after the sending of the ASSIGNMENT COMMAND message, but before the return on the old channel. The System Simulator does not activate the channels defined in the ASSIGNMENT COMMAND. The MS shall try to activate the new channel (this is not verified) and shall then reactivate the old channel with the new frequency parameters as indicated by the FREQUENCY REDEFINITION message, and trigger the establishment of the main signalling link on the old channel. Then the MS shall send an ASSIGNMENT FAILURE message. The verification is performed at the RF burst level.
Test parameters:
i.e. for SDCCH
T2 is set to T0+5000 (mod 42 432), where T0 is the frame number at which the first burst of the FREQUENCY REDEFINITION message is sent.
T1 is set to T0+214 (mod 42 432), where T0 is the frame number at which the first burst of the FREQUENCY REDEFINITION message is sent.
NOTE: T0 + 214 is calculated for a maximum execution time of:
FREQUENCY REDEFINITION using 1 L2 frame 51 frames
ASSIGNMENT COMMAND using 2 L2 frames 102 frames
+ 120 ms maximum time for a channel change 25 frames
+ some frames conention (here 36)
Maximum duration of test
180 s.
Expected sequence
Step |
Direction |
Message |
Comments |
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
|
2 |
MS -> SS |
CHANNEL REQUEST |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
Hopping channel. |
4 |
MS -> SS |
PAGING RESPONSE |
|
5 |
SS -> MS |
FREQUENCY REDEFINITION |
|
6 |
SS -> MS |
ASSIGNMENT COMMAND |
Hopping channel, type among possible, signalling mode. |
7 |
MS -> SS |
ASSIGNMENT FAILURE |
Sent on the correct channel (parameters from the FREQUENCY REDEFINITION message) after establishment of the main signalling link. |
8 |
SS -> MS |
CHANNEL RELEASE |
Specific message contents
FREQUENCY REDEFINITION
Information element |
Value/remark |
Channel Description |
|
Channel Type and TDMA offset |
Same as in IMMEDIATE ASSIGNMENT |
Timeslot Number |
Same as in IMMEDIATE ASSIGNMENT |
Training Sequence Code |
Same as in IMMEDIATE ASSIGNMENT |
Hopping |
Yes |
Hopping parameters |
Chosen arbitrarily, different than those of the IMMEDIATE ASSIGNMENT message. |
Mobile Allocation |
Chosen arbitrarily, at least two frequencies, different than those of the IMMEDIATE ASSIGNMENT message, HSN same as in IMMEDIATE ASSIGNMENT. |
Starting Time |
T1 |
ASSIGNMENT COMMAND
Information element |
Value/remark |
Channel Description, after time |
|
Channel Type and TDMA offset |
Chosen arbitrarily among that supported by the Mobile Station. |
Timeslot Number |
Chosen arbitrarily. |
Training Sequence Code |
Chosen arbitrarily. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily. |
Power Command |
|
Power level |
Chosen arbitrarily. |
Channel Mode |
|
Mode |
Signalling Only. |
Mobile Allocation, after time |
Chosen arbitrarily, at least two frequencies. |
Starting Time |
T2 |
Channel Description, before time |
|
Channel Type and TDMA offset |
Same as after time. |
Timeslot Number |
Same as after time. |
Training Sequence Code |
Same as after time. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily, different from "after time". |
Mobile Allocation, before time |
Chosen arbitrarily, at least two frequencies, different from "Mobile Allocation, after time". |
26.6.13.5 Handover with starting time / successful case / time not elapsed
26.6.13.5.1 Conformance requirement
A Mobile Station receiving an HANDOVER COMMAND message with a starting time and channel descriptions for both after and before the starting time, and ready to access before the indicated time has elapsed, shall perform the handover on the channels as described for before the starting time and shall, if specified, use the parameters in the frequency list, MAIO and HSN, in the correct time slot indicated by the starting time.
The Mobile Station shall accept the HANDOVER COMMAND message for different message formatting, differing by the information elements used to describe frequency lists.
Reference(s):
3GPP TS 04.08 / 3GPP TS 44.018 subclauses 3.4.4.1 and 9.1.15.
26.6.13.5.2 Test purpose
To verify that the MS, after receiving a HANDOVER COMMAND message with a starting time and channel descriptions both for before and after the starting time, and ready to access before the indicated time, performs correctly the handover using the description for before the time, and then starts using the frequency parameters for after the time at the time indicated in the message.
26.6.13.5.3 Method of test
Initial condition(s)
System Simulator:
2 cells, CCCH_CONF set to 1 basic physical channel used for CCCH, not combined with SDCCHs.
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated.
Specific PICS statements
– MS supports only SDCCH (TSPC_AddInfo_SDCCHOnly)
– MS supports GSM HR (TSPC_AddInfo_Halfrate)
PIXIT statements
–
Foreseen final state of the MS
"Idle, updated", with TMSI allocated, and camped on cell B.
Test procedure
The System Simulator pages the MS and after the MS has responded with a CHANNEL REQUEST, the simulator assigns a hopping SDCCH. After the SS has received measurements concerning cell B, the SS sends a HANDOVER COMMAND message allocating a channel (TCH/F, TCH/H or SDCCH, arbitrarily chosen among the channels supported), with a starting time and channel descriptions (hopping case) for both before and after the starting time , as detailed in the "specific message contents" clause. The indicated time is such that the Mobile Station is ready to access before that time. The Mobile Station then accesses the channel as described for before the starting time. The MS shall eventually, at the TDMA frame defined by the contents of the "Starting Time" information element of the HANDOVER COMMAND message, use the new frequency parameters. The verification is performed at the RF burst level.
Test parameters:
T1 is set to T0+1000 (mod 42 432), where T0 is the frame number at which the first burst of the HANDOVER COMMAND message is sent.
Maximum duration of test
120 s.
Expected sequence
Step |
Direction |
Message |
Comments |
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
|
2 |
MS -> SS |
CHANNEL REQUEST |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
Hopping channel. |
4 |
MS -> SS |
PAGING RESPONSE |
|
5 |
SS -> MS |
HANDOVER COMMAND |
See specific message contents. |
6 |
MS -> SS |
HANDOVER ACCESS |
Repeated on every burst of the uplink main DCCH (and optionally on the SACCH) until reception of PHYSICAL INFORMATION. |
7 |
SS -> MS |
PHYSICAL INFORMATION |
|
8 |
MS -> SS |
HANDOVER COMPLETE |
Sent on the correct channel (before time parameters) after establishment of the main signalling link. |
9 |
——– |
Time T1 |
The SS checks that the MS is transmitting now on the correct frequencies (after time parameters) and that the transmissions started in the correct frame. |
10 |
SS -> MS |
CHANNEL RELEASE |
Specific message contents
HANDOVER COMMAND:
Information element |
Value/remark |
Cell Description |
As for cell B. |
Channel Description, after time |
|
Channel Type and TDMA offset |
Chosen arbitrarily among that supported by the Mobile Station. |
Timeslot Number |
Chosen arbitrarily. |
Training Sequence Code |
Chosen arbitrarily. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily. |
Power Command |
|
Power level |
Chosen arbitrarily. |
Synchronization indication |
Non synchronized. |
Cell Channel Description |
As for cell B. |
Channel Mode |
|
Mode |
Signalling Only. |
Mobile Allocation, after time |
Chosen arbitrarily, at least one frequency. In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
Starting Time |
T1 |
Channel Description, before time |
|
Channel Type and TDMA offset |
Same as after time. |
Timeslot Number |
Same as after time. |
Training Sequence Code |
Same as after time. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily, different from "after time". |
Mobile Allocation, before time |
Chosen arbitrarily, at least one frequency, different from "Mobile Allocation, after time". In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
26.6.13.6 Handover with starting time / successful case / time elapsed
26.6.13.6.1 Conformance requirement
A Mobile Station receiving a HANDOVER COMMAND message with a starting time and channel descriptions for both after and before the starting time, and ready to access after the indicated time has elapsed, shall perform the handover on the channels as described for after the starting time.
The Mobile Station shall accept the HANDOVER COMMAND message for different message formattings, differing by the information elements used to describe frequency lists.
Reference(s):
3GPP TS 04.08 / 3GPP TS 44.018 sub-clauses 3.4.4.1 and 9.1.15.
26.6.13.6.2 Test purpose:
To verify that the MS, after receiving a HANDOVER COMMAND message with a starting time and channel descriptions both for before and after the starting time, and ready to transmit after the indicated time, performs correctly the handover using the frequency parameters for after the time.
26.6.13.6.3 Method of test
Initial condition(s)
System Simulator:
2 cells, CCCH_CONF set to 1 basic physical channel used for CCCH, not combined with SDCCHs.
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated, and camped on cell A
Specific PICS statements
– MS supports only SDCCH (TSPC_AddInfo_SDCCHOnly)
– MS supports GSM HR (TSPC_AddInfo_Halfrate)
PIXIT statements
–
Foreseen final state of the MS
"Idle, updated", with TMSI allocated, and camped on cell B.
Test procedure
The System Simulator pages the MS and after the MS has responded with a CHANNEL REQUEST, the simulator assigns a hopping SDCCH. After the SS has received measurements concerning cell B, the SS sends a HANDOVER COMMAND message allocating a channel (TCH/F, TCH/H or SDCCH, arbitrarily chosen among the channels supported), with a starting time and channel descriptions (hopping case) for both before and after the starting time., as detailed in the "specific message contents" clause. The indicated time is such that the Mobile Station is ready to access only after that time. The Mobile Station then accesses the channel as described for after the starting time. The verification is performed at the RF burst level.
Test parameters:
T1 is set to T0+5 (mod 42 432), where T0 is the frame number at which the first burst of the HANDOVER COMMAND message is sent.
Maximum duration of test
120 s.
Expected sequence
Step |
Direction |
Message |
Comments |
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
|
2 |
MS -> SS |
CHANNEL REQUEST |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
Hopping channel. |
4 |
MS -> SS |
PAGING RESPONSE |
|
5 |
SS -> MS |
HANDOVER COMMAND |
See specific message contents. |
6 |
MS -> SS |
HANDOVER ACCESS |
Repeated on every burst of the uplink main DCCH (and optionally on the SACCH) until reception of PHYSICAL INFORMATION. |
7 |
SS -> MS |
PHYSICAL INFORMATION |
|
8 |
MS -> SS |
HANDOVER COMPLETE |
Sent on the correct channel (after time parameters) after establishment of the main signalling link. |
9 |
SS -> MS |
CHANNEL RELEASE |
Specific message contents
HANDOVER COMMAND:
Information element |
Value/remark |
Cell Description |
As for cell B. |
Channel Description, after time |
|
Channel Type and TDMA offset |
Chosen arbitrarily among that supported by the Mobile Station. |
Timeslot Number |
Chosen arbitrarily. |
Training Sequence Code |
Chosen arbitrarily. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily. |
Power Command |
|
Power level |
Chosen arbitrarily. |
Synchronization indication |
Non synchronized. |
Cell Channel Description |
As for cell B. |
Channel Mode |
|
Mode |
Signalling Only. |
Mobile Allocation, after time |
Chosen arbitrarily, at least one frequency. In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
Starting Time |
T1 |
Channel Description, before time |
|
Channel Type and TDMA offset |
Same as after time. |
Timeslot Number |
Same as after time. |
Training Sequence Code |
Same as after time. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily, different from "after time". |
Mobile Allocation, before time |
Chosen arbitrarily, at least one frequency and different from "Mobile Allocation, after time". In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
26.6.13.7 Handover with starting time and frequency redefinition / failure case / time not elapsed
26.6.13.7.1 Conformance requirement
An MS, after receiving a FREQUENCY REDEFINITION message, shall keep the provided information until the time is elapsed. The Mobile Station must accept an intervening handover, and, in case of failure of this handover resulting in a return to the old channel before the time indicated in the FREQUENCY REDEFINITION message, shall return on the old channel with the frequency parameters in use at the moment of the reception of the FREQUENCY REDEFINITION message, and shall eventually start using the new frequency parameters in the correct time slot indicated by the starting time of the FREQUENCY REDEFINITION message.
Reference(s):
3GPP TS 04.08 / 3GPP TS 44.018 subclauses 3.4.4 and 3.4.5.
26.6.13.7.2 Test purpose:
To verify that the MS, after receiving a FREQUENCY REDEFINITION and then a HANDOVER COMMAND message with a starting time and channel descriptions both for before and after the starting time, failing the handover, and ready to access on the old channel before the time indicated in the FREQUENCY REDEFINITION, resumes transmission on the channels used at the time of the reception of the FREQUENCY REDEFINITION message and eventually starts using the new frequency parameters at the time indicated in the FREQUENCY REDEFINITION message.
26.6.13.7.3 Method of test
Initial condition(s)
System Simulator:
2 cells, CCCH_CONF set to 1 basic physical channel used for CCCH, not combined with SDCCHs.
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated, and camped on cell A.
Specific PICS statements
– MS supports only SDCCH (TSPC_AddInfo_SDCCHOnly)
– MS supports GSM HR (TSPC_AddInfo_Halfrate)
PIXIT statements
–
Foreseen final state of the MS
"Idle, updated", with TMSI allocated, and camped on cell A.
Test procedure
The System Simulator pages the MS and after the MS has responded with a CHANNEL REQUEST, the simulator assigns allocating a hopping channel (TCH/F, TCH/H or SDCCH, arbitrarily chosen among the channels supported). Then the SS sends a FREQUENCY REDEFINITION message (starting time T1), which modifies the frequency parameters to be used by the MS. Then the SS sends a HANDOVER COMMAND message, with a starting time (T2) and channel descriptions for both before and after the starting time. The MS shall try to activate the new channel (this is not verified) and shall then reactivate the old channel and trigger the establishment of the main signalling link on the old channel. The System Simulator does not activate the channels defined in the HANDOVER COMMAND. Then the MS shall send a HANDOVER FAILURE message. Time T1 is chosen so it is reached only after the sending of the HANDOVER FAILURE message. The MS shall eventually, at the TDMA frame defined by the contents of the "Starting Time" information element of the FREQUENCY REDEFINITION message, use the new frequency parameters. The verification is performed at the RF burst level.
Test parameters:
T1 is set to T0+5000 (mod 42 432), where T0 is the frame number at which the first burst of the FREQUENCY REDEFINITION message is sent.
T2 is set to T0+4000 (mod 42 432), where T0 is the frame number at which the first burst of the FREQUENCY REDEFINITION message is sent.
Maximum duration of test
180 s.
Expected sequence
Step |
Direction |
Message |
Comments |
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
|
2 |
MS -> SS |
CHANNEL REQUEST |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
Hopping channel. |
4 |
MS -> SS |
PAGING RESPONSE |
|
5 |
SS -> MS |
FREQUENCY REDEFINITION |
|
6 |
SS -> MS |
HANDOVER COMMAND |
Hopping channel, type among possible, signalling mode. |
7 |
MS -> SS |
HANDOVER ACCESS |
Not checked. |
8 |
MS -> SS |
HANDOVER FAILURE |
Sent on the correct channel (original parameters) after establishment of the main signalling link. |
9 |
——– |
Time T1 |
The SS checks that the MS is transmitting now on the correct frequencies (parameters of the FREQUENCY REDEFINITION message) and that the transmissions started in the correct frame. |
10 |
SS -> MS |
CHANNEL RELEASE |
Specific message contents
FREQUENCY REDEFINITION
Information element |
Value/remark |
Channel Description |
|
Channel Type and TDMA offset |
Same as in IMMEDIATE ASSIGNMENT |
Timeslot Number |
Same as in IMMEDIATE ASSIGNMENT |
Training Sequence Code |
Same as in IMMEDIATE ASSIGNMENT |
Hopping |
Yes |
Hopping parameters |
Chosen arbitrarily, different than those of the IMMEDIATE ASSIGNMENT message, HSN same as in IMMEDIATE ASSIGNMENT. |
Mobile Allocation |
Chosen arbitrarily, at least two frequencies, different than those of the IMMEDIATE ASSIGNMENT message. |
Starting Time |
T1 |
HANDOVER COMMAND:
Information element |
Value/remark |
Cell Description |
As for cell B. |
Channel Description, after time |
|
Channel Type and TDMA offset |
Chosen arbitrarily among that supported by the Mobile Station. |
Timeslot Number |
Chosen arbitrarily. |
Training Sequence Code |
Chosen arbitrarily. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily. |
Power Command |
|
Power level |
Chosen arbitrarily. |
Synchronization indication |
Non synchronized. |
Cell Channel Description |
As for cell B. |
Channel Mode |
|
Mode |
Signalling Only. |
Mobile Allocation, after time |
Chosen arbitrarily, at least one frequency. In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
Starting Time |
T2 |
Channel Description, before time |
|
Channel Type and TDMA offset |
Same as after time. |
Timeslot Number |
Same as after time. |
Training Sequence Code |
Same as after time. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily, different from "after time". |
Mobile Allocation, before time |
Chosen arbitrarily, at least one frequency and different from "Mobile Allocation, after time". In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
26.6.13.8 Handover with starting time and frequency redefinition / failure case / time elapsed
26.6.13.8.1 Conformance requirement
An MS, after receiving a FREQUENCY REDEFINITION message, shall keep the provided information until the time is elapsed. The Mobile Station must accept an intervening handover, and, in case of failure of this handover resulting in a return to the old channel after the time indicated in the FREQUENCY REDEFINITION message, shall return on the old channel with the frequency parameters indicated in the FREQUENCY REDEFINITION message.
Reference(s):
3GPP TS 04.08 / 3GPP TS 44.018 subclauses 3.4.4 and 3.4.5.
26.6.13.8.2 Test purpose:
To verify that the MS, after receiving a FREQUENCY REDEFINITION and then a HANDOVER COMMAND message with a starting time and channel descriptions both for before and after the starting time, failing the handover and returning on the old channel, and ready to access after the time indicated in the FREQUENCY REDEFINITION, resumes transmission using the new frequency parameters indicated in the FREQUENCY REDEFINITION message.
26.6.13.8.3 Method of test
Initial condition(s)
System Simulator:
2 cells, CCCH_CONF set to 1 basic physical channel used for CCCH, not combined with SDCCHs.
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", with TMSI allocated, and camped on cell A.
Test procedure
The System Simulator pages the MS and after the MS has responded with a CHANNEL REQUEST, the simulator assigns a hopping channel (SDCCH). Then the SS sends a FREQUENCY REDEFINITION message (starting time T1), which modifies the frequency parameters to be used by the MS. Then the SS sends a HANDOVER COMMAND message, with a starting time (T2) and channel descriptions for both before and after the starting time. Time T1 is chosen so it is reached after the sending of the HANDOVER COMMAND message, but before the return on the old channel. The System Simulator does not activate the channels defined in the HANDOVER COMMAND. The MS shall try to activate the new channel (this is not verified) and shall then reactivate the old channel with the new frequency parameters as indicated by the FREQUENCY REDEFINITION message, and trigger the establishment of the main signalling link on the old channel. Then the MS shall send a HANDOVER FAILURE message. The verification is performed at the RF burst level.
Test parameters:
i.e. for SDCCH
T2 is set to T0+5000 (mod 42 432), where T0 is the frame number at which the first burst of the FREQUENCY REDEFINITION message is sent.
T1 is set to T0+265(mod 42 432), where T0 is the frame number at which the first burst of the FREQUENCY REDEFINITION message is sent.
NOTE: T0 + 265 is calculated for a maximum execution time of:
FREQUENCY REDEFINITION using 1 L2 frame 51 frames
HANDOVER COMMAND using 3 L2 frames 153 frames
+ 120 ms maximum time for a channel change 25 frames
+ some frames contention (here 36)
Maximum duration of test
180 s.
Expected sequence
Step |
Direction |
Message |
Comments |
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
|
2 |
MS -> SS |
CHANNEL REQUEST |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
Hopping channel. |
4 |
MS -> SS |
PAGING RESPONSE |
|
5 |
SS -> MS |
FREQUENCY REDEFINITION |
|
6 |
SS -> MS |
HANDOVER COMMAND |
Hopping channel, type among possible, signalling mode. |
7 |
MS -> SS |
HANDOVER ACCESS |
Not checked. |
8 |
MS -> SS |
HANDOVER FAILURE |
Sent on the correct channel (parameters from the FREQUENCY REDEFINITION message) after establishment of the main signalling link. |
9 |
SS -> MS |
CHANNEL RELEASE |
Specific message contents
FREQUENCY REDEFINITION
Information element |
Value/remark |
Channel Description |
|
Channel Type and TDMA offset |
Same as in IMMEDIATE ASSIGNMENT |
Timeslot Number |
Same as in IMMEDIATE ASSIGNMENT |
Training Sequence Code |
Same as in IMMEDIATE ASSIGNMENT |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily, different than those of the IMMEDIATE ASSIGNMENT message, HSN same as in IMMEDIATE ASSIGNMENT. |
Mobile Allocation |
Chosen arbitrarily, at least two frequencies, different than those of the IMMEDIATE ASSIGNMENT message |
Starting Time |
T1 |
HANDOVER COMMAND
Information element |
Value/remark |
Cell Description |
As for cell B. |
Channel Description, after time |
|
Channel Type and TDMA offset |
Chosen arbitrarily among that supported by the Mobile Station. |
Timeslot Number |
Chosen arbitrarily. |
Training Sequence Code |
Chosen arbitrarily. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily. |
Power Command |
|
Power level |
Chosen arbitrarily. |
Synchronization indication |
Non synchronized. |
Cell Channel Description |
As for cell B. |
Channel Mode |
|
Mode |
Signalling Only. |
Mobile Allocation, after time |
Chosen arbitrarily, at least one frequency. In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
Starting Time |
T2 |
Channel Description, before time |
|
Channel Type and TDMA offset |
Same as after time. |
Timeslot Number |
Same as after time. |
Training Sequence Code |
Same as after time. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily, different from "after time". |
Mobile Allocation, before time |
Chosen arbitrarily, at least one frequency and different from "Mobile Allocation, after time". In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
26.6.13.9 Immediate assignment with starting time / successful case / time not elapsed
26.6.13.9.1 Conformance requirement
A Mobile Station receiving an IMMEDIATE ASSIGNMENT message with a starting time and channel descriptions for both after and before the starting time, and ready to access before the indicated time has elapsed, shall perform the assignment on the channels as described for before the starting time and shall start using the new frequencies and hopping sequence in the correct time slot when the MS is allocated a dedicated channel.
Reference(s):
3GPP TS 04.08 / 3GPP TS 44.018 subclauses 3.3.1.1.3.1 and 9.1.18.
26.6.13.9.2 Test purpose
To verify that the MS, after receiving an IMMEDIATE ASSIGNMENT message with a starting time and channel descriptions both for before and after the starting time, and ready to access before the indicated time, performs correctly the assignment using the description for before the time, and then starts using the frequency parameters for after the time at the time indicated in the message.
26.6.13.9.3 Method of test
Initial condition(s)
System Simulator:
1 cell, CCCH_CONF set to 1 basic physical channel used for CCCH, not combined with SDCCHs.
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated.
Specific PICS statements
– MS supports only SDCCH (TSPC_AddInfo_SDCCHOnly)
– MS supports GSM HR (TSPC_AddInfo_Halfrate)
PIXIT statements
–
Foreseen final state of the MS
"Idle, updated", with TMSI allocated.
Test procedure
The System Simulator pages the MS and after the MS has responded with a CHANNEL REQUEST, the simulator sends an IMMEDIATE ASSIGNMENT message allocating a hopping channel (TCH/F, TCH/H or SDCCH, arbitrarily chosen among the channels supported), with a starting time and channel descriptions for both before and after the starting time. The indicated time is such that the Mobile Station is ready to access before that time. The Mobile Station then accesses the channel as described for before the starting time. The MS shall eventually, at the TDMA frame defined by the contents of the "Starting Time" information element of the IMMEDIATE ASSIGNMENT message, use the new frequency parameters. The verification is performed at the RF burst level.
Test parameters:
T1 is chosen arbitrarily to be between T0+60 and T0+100 (mod 42 432), where T0 is the frame number at which the first burst of the IMMEDIATE ASSIGNMENT COMMAND message is sent.
Maximum duration of test
45 s.
Expected sequence
Step |
Direction |
Message |
Comments |
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
|
2 |
MS -> SS |
CHANNEL REQUEST |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
See specific message contents. |
4 |
MS -> SS |
PAGING RESPONSE |
|
5 |
——– |
Time T1 |
The SS checks that the MS is transmitting now on the correct frequencies (after time parameters) and that the transmissions started in the correct frame. |
6 |
SS -> MS |
CHANNEL RELEASE |
Specific message contents
IMMEDIATE ASSIGNMENT
Information element |
Value/remark |
Page Mode |
Normal. |
Channel Description |
|
Channel Type and TDMA offset |
Chosen arbitrarily among that supported by the Mobile Station. |
Timeslot Number |
Chosen arbitrarily. |
Training Sequence Code |
Chosen arbitrarily. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily. |
Timing Advance |
As needed. |
Mobile Allocation (after time) |
Chosen arbitrarily, at least one frequency. In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
Starting Time |
T1 |
IA Rest Octet |
|
MAIO |
Chosen arbitrarily, different from "after time". |
Mobile Allocation (before time) |
Chosen arbitrarily, at least one frequency and different from "Mobile Allocation, after time". In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
26.6.13.10 Immediate assignment with starting time / successful case / time elapsed
26.6.13.10.1 Conformance requirement
A Mobile Station receiving an IMMEDIATE ASSIGNMENT message with a starting time and channel descriptions for both after and before the starting time, and ready to access after the indicated time has elapsed, shall perform the assignment on the channels as described for after the starting time.
Reference(s):
3GPP TS 04.08 / 3GPP TS 44.018 subclauses 3.3.1.1.3.1 and 9.1.18.
26.6.13.10.2 Test purpose
To verify that the MS, after receiving an IMMEDIATE ASSIGNMENT message with a starting time and channel descriptions both for before and after the starting time, performs correctly the assignment using the frequencies and hopping sequence for after the time if the indicated time has already elapsed when the Mobile Station is ready to transmit.
26.6.13.10.3 Method of test
Initial condition(s)
System Simulator:
1 cell, CCCH_CONF set to 1 basic physical channel used for CCCH, not combined with SDCCHs.
Mobile Station:
The MS is in the "idle, updated" state, with a TMSI allocated.
Specific PICS statements
– MS supports only SDCCH (TSPC_AddInfo_SDCCHOnly)
– MS supports GSM HR (TSPC_AddInfo_Halfrate)
PIXIT statements
–
Foreseen final state of the MS
"Idle, updated", with TMSI allocated.
Test procedure
The System Simulator pages the MS and after the MS has responded with a CHANNEL REQUEST, the simulator sends an IMMEDIATE ASSIGNMENT message allocating a hopping channel (TCH/F, TCH/H or SDCCH, arbitrarily chosen among the channels supported), with a starting time and channel descriptions for both before and after the starting time. The indicated time is such that the Mobile Station is ready to access only after that time. The Mobile Station then accesses the channel as described for after the starting time. The verification is performed at the RF burst level.
Test parameters:
T1 is set to T0+5 (mod 42 432), where T0 is the frame number at which the first burst of the IMMEDIATE ASSIGNMENT COMMAND message is sent.
Maximum duration of test
45 s
Expected sequence
Step |
Direction |
Message |
Comments |
1 |
SS -> MS |
PAGING REQUEST TYPE 1 |
|
2 |
MS -> SS |
CHANNEL REQUEST |
|
3 |
SS -> MS |
IMMEDIATE ASSIGNMENT |
See specific message contents. |
4 |
MS -> SS |
PAGING RESPONSE |
The SS checks that the MS is transmitting now on the correct frequencies (after time parameters). |
5 |
SS -> MS |
CHANNEL RELEASE |
Specific message contents
IMMEDIATE ASSIGNMENT:
Information element |
Value/remark |
Page Mode |
Normal. |
Channel Description |
|
Channel Type and TDMA offset |
Chosen arbitrarily among that supported by the Mobile Station. |
Timeslot Number |
Chosen arbitrarily. |
Training Sequence Code |
Chosen arbitrarily. |
Hopping |
Yes. |
Hopping parameters |
Chosen arbitrarily. |
Timing Advance |
As needed. |
Mobile Allocation (after time) |
Chosen arbitrarily, at least one frequency. In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |
Starting Time |
T1 |
IA Rest Octet |
|
MAIO |
Chosen arbitrarily, different from "after time". |
Mobile Allocation (before time) |
Chosen arbitrarily, at least one frequency and different from "Mobile Allocation, after time". In case of an MA with just one frequency, the frequency should be different from the BCCH carrier. |