26.6.5 Test of handover

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

With the Handover procedure, it is possible to completely alter the channels allocated to a MS. This makes it possible in particular to switch a call in progress from one cell to another. The procedure is always initiated by the network and with the MS in a dedicated mode.

Subclauses 26.6.5.1 to 26.6.5.4 contain generic test procedures to be used for executing successful Handover tests. Table 26.6‑1 contains a summary of the different combinations of parameters which have to be tested, together with a reference to the appropriate generic test procedure. If a test uses a channel rate which the MS under test does not support, the test shall be skipped.

Table 26.6‑1

From

To

Timing Adv.

Start

Time

Syn

?

State

of call

Subclause

Exec

Counter

TCH/F, no FH

TCH/F, no FH

20

none

no

U10

26.6.5.1

1

TCH/F, no FH

TCH/F, FH

arbitrary

none

no

U10

26.6.5.1

2

TCH/F, FH

TCH/F, no FH

20

1,1s

no

U10

26.6.5.1

3

TCH/F, no FH

TCH/H, FH

arbitrary

none

no

U10

26.6.5.1

4

TCH/H, FH

TCH/H, FH

20

1,1s

no

U10

26.6.5.1

5

TCH/H, FH

TCH/H, no FH

20

none

no

U10

26.6.5.1

6

TCH/H, no FH

TCH/H, FH

arbitrary

none

no

U10

26.6.5.1

7

TCH/H, FH

TCH/F, no FH

arbitrary

none

no

U10

26.6.5.1

8

SDCCH/4, no FH

TCH/F, FH

20

none

no

estab

26.6.5.2

1

SDCCH/4, no FH

TCH/H, FH

20

none

no

estab

26.6.5.2

2

SDCCH/4, no FH

SDCCH/8, FH

20

none

no

estab

26.6.5.2

3

SDCCH/8, no FH

SDCCH/8, FH

arbitrary

none

no

estab

26.6.5.2

4

TCH/F, no FH

TCH/H, no FH

20

none

no

estab

26.6.5.2

5

TCH/H, FH

TCH/F, FH

20

none

no

estab

26.6.5.2

6

TCH/F, FH

TCH/F, FH

arbitrary

none

no

estab

26.6.5.2

7

SDCCH/8, FH

TCH/F, no FH

20

none

no

estab

26.6.5.2

8

SDCCH/8, no FH

TCH/F, FH

20

none

no

estab

26.6.5.2

9

SDCCH/8, no FH

TCH/H, FH

arbitrary

none

no

estab

26.6.5.2

10

TCH/F, FH

TCH/F, no FH

(2k+y) mod 256

none

yes

U10

26.6.5.3

1

TCH/H, FH

TCH/H, no FH

(2k+y) mod 256

none

yes

U10

26.6.5.3

2

SDCCH/8, FH

SDCCH/8, FH

(2k+y) mod 256

none

yes

estab

26.6.5.4

1

SDCCH/8, FH

SDCCH/4, no FH

(2k+y) mod 256

1,1s

yes

estab

26.6.5.4

2

TCH/F, no FH

TCH/F, FH

(2k+y) mod 256

none

yes

estab

26.6.5.4

3

SDCCH/8, no FH

TCH/F, no FH

(2k+y) mod 256

none

yes

estab

26.6.5.4

4

Table 26.6‑2

TCH/FS

TCH/HS

SDCCH

n

10‑20

5‑10

2‑5

In addition to the successful case of Handover, 2 unsuccessful cases shall be tested. These tests are described in subclauses 26.6.5.8 and 26.6.5.9.

26.6.5.1 Handover / successful / active call / non-synchronized

26.6.5.1.1 Conformance requirements

The MS shall correctly apply the handover procedure in the non-synchronized case when a call is in progress and when handover is performed from a TCH/F without frequency hopping towards a TCH/F without frequency hopping.

The MS shall correctly apply the handover procedure in the non-synchronized case when a call is in progress and when handover is performed from a TCH/H without frequency hopping to a TCH/H with frequency hopping. This does not apply to MSs not supporting TCH/H.

References

3GPP TS 04.08 / 3GPP TS 44.018 subclauses 3.4.4 and 9.1.15.

3GPP TS 04.13 subclause 5.2.6.2.

26.6.5.1.2 Test purpose

To test that when the MS is ordered to make a non-synchronized handover it continuously sends access bursts on the main DCCH (and optionally the SACCH) until it receives a PHYSICAL INFORMATION message from the SS. To test that the MS correctly handles the values of any Starting Time IE in the HANDOVER COMMAND message in the case when none of the information elements referring to before the starting time are present. To test that the MS correctly handles the Timing Advance IE in the PHYSICAL INFORMATION message. To test that the MS activates the new channel correctly and transmits the HANDOVER COMPLETE message without undue delay.

26.6.5.1.3 Method of test

Initial Conditions

System Simulator:

2 cells, A and B with same LAI, default parameters except:

Band

Cell A

Cell B

Both Cells

BCCH ARFCN

Cell Allocation

BCCH ARFCN

Cell Allocation

Format

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

Range 128

DCS 1 800

747

734, 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

634, 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

The frame numbers of cells A and B shall be different by 100.

The timebase of cells A and B shall be such that the edges of their timeslots are not coincident at the antenna connector.

Mobile Station:

The MS is in the active state (U10) of a call on cell A.

Specific PICS statements

– MS supports Speech (TSPC_TS1x_Speech)

PIXIT statements

– supported radio interface rates: 12kbps, 6kbps, 3,6kbps

Foreseen Final State of the MS

The active state (U10) of a call on cell A.

Test Procedure

This procedure is repeated for execution counter M = 1 to 8 (see table 26.6‑1).

The MS is in the active state (U10) of a call. The SS sends a HANDOVER COMMAND on the main DCCH. The MS shall (at the time defined by the Starting Time information element, if included in the message) begin to send access bursts on the new DCCH (and optionally the SACCH) of the target cell. The SS observes the access bursts and after receiving n (n being arbitrarily chosen between values according to table 26.6‑2 of subclause 26.6.5) access bursts, the SS sends one PHYSICAL INFORMATION message with a Timing Advance as specified in table 26.6‑1 of subclause 26.6.5. The MS shall activate the channel in sending and receiving mode. The MS shall establish a signalling link. The MS shall be ready to transmit a HANDOVER COMPLETE message, before "x" MS after the end of the PHYSICAL INFORMATION message, but not before a UA frame has been sent by the SS.

The term "ready to transmit" is defined in 3GPP TS 04.13. The value of "x" depends upon the target channel and is specified in the specific message contents section.

Maximum Duration of Test

5 minutes, including 1 minute for any necessary operator actions.

Expected Sequence

This sequence is performed for an execution counter M = 1, 2, 3 for an MS which only supports TCH/F.

This sequence is performed for an execution counter M = 1, 2.. 8 for an MS which supports TCH/F and H

Step

Direction

Message

Comments

0

MS -> SS

The MS and SS are in the active state of a call on the channel described below.

1

SS -> MS

HANDOVER COMMAND

See Specific message contents.

2

MS -> SS

HANDOVER ACCESS

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. If the HANDOVER COMMAND includes a starting time IE then the first HANDOVER ACCESS message shall be transmitted in the indicated frame (unless the indicated frame is not used by that channel, in which case the next frame used by that channel shall be used).

3

SS -> MS

PHYSICAL INFORMATION

Sent after reception of n HANDOVER ACCESS messages. See specific message contents.

4

MS -> SS

SABM

Sent without information field.

5

SS -> MS

UA

6

MS -> SS

HANDOVER COMPLETE

The message shall be ready to be transmitted before "x" ms after the completion of step 3.

7

MS -> SS

The MS and SS are in the active state of a call on the channel described below.

Specific Message Contents For Mobiles Supporting Speech

For M = 1:

Step 0: The MS and SS are using a full rate TCH in non-hopping mode on cell A.

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Non synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Band

BCCH Carrier Number

GSM 450

274

GSM 480

321

GSM 710

477

GSM 750

477

T-GSM 810

477

GSM 850

167

GSM 900

40

DCS 1 800

764

PCS 1 900

664

PHYSICAL INFORMATION

Information Element

value/remarks

As default message contents.

Step 6: x = 500

Step 7: The MS and SS are using a full rate TCH in non hopping mode on cell B.

For M = 2:

Step 0: The MS and SS are using a full rate TCH in non-hopping mode on cell B.

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/H + ACCHs

– Timeslot number

Chosen arbitrarily, but not Zero.

– Training Sequence Code

Chosen arbitrarily

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency List IE.

– HSN

Chosen arbitrarily from the set (1,2,..63).

Synchronization Indication IE is not included.

Channel Mode IE is not included.

Frequency List after time

– Frequency List

See table below

HANDOVER COMMAND

Band

Frequency List

BCCH Carrier Number

Format

ARFCNs

ARFCN

GSM 450

Range 128

259, 261, 263, 265, 277, 279, 281, 283, 285, 287, 289, 291

263

GSM 480

Range 128

306, 308, 310, 312, 324, 326, 328, 330, 332, 334, 336, 338

310

GSM 710

Range 256

447, 454, 457, 463, 496, 498, 500, 501, 502, 503 ,506, 508

457

GSM 750

Range 256

447, 454, 457, 463, 496, 498, 500, 501, 502, 503 ,506, 508

457

T-GSM 810

Range 256

447, 454, 457, 463, 496, 498, 500, 501, 502, 503 ,506, 508

457

GSM 850

Variable bitmap

137, 144, 147, 153, 186, 193, 200, 201, 202, 203, 235, 241

147

GSM 900

Variable bitmap

10, 17, 20, 26, 59, 66, 73, 74, 75, 76,108, 114

20

DCS 1 800

Range 256

747, 775, 779, 782, 791, 798, 829, 832, 844

747

PCS 1 900

Range 256

647, 675, 679, 682, 691, 698, 729, 732, 744

647

PHYSICAL INFORMATION

Information Element

value/remarks

As default message contents, except:

Timing advance

Arbitrarily selected but different to default value.

Step 6: x = 500.

Step 7: The MS and SS are using a full rate TCH in hopping mode on cell A.

For M = 3:

Step 0: The MS and SS are using a full rate TCH in hopping mode on cell A.

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Non synchronized".

– Normal Cell Indication

Out of range timing advance shall trigger a handover failure procedure.

Starting Time

Indicates the frame number of cell B that will occur approximately 1,1 seconds (238 frames have elapsed) after the HANDOVER COMMAND is sent by cell A.

Mode of first channel

Speech (full rate version 1 or half rate version 1).

Band

BCCH Carrier Number

GSM 450

274

GSM 480

321

GSM 710

477

GSM 750

477

T-GSM 810

477

GSM 850

167

GSM 900

40

DCS 1 800

764

PCS 1 900

664

PHYSICAL INFORMATION

Information Element

value/remarks

As default message contents.

Step 6: x = 500.

Step 7: The MS and SS are using a full rate TCH in non-hopping mode on cell B.

For M = 4:

Step 0: The MS and SS are using a full rate TCH in non-hopping mode on cell B.

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/H + ACCHs

– TDMA offset

Chosen arbitrarily.

– Timeslot number

Zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Mobile Allocation.

– HSN

zero (this gives cyclic hopping).

Synchronization Indication IE is not included.

Cell Channel Description

Use format from table below to encode the complete CA of Cell A.

Mobile Allocation after time

Indicates all of the CA of cell A except for the BCCH frequency.

HANDOVER COMMAND

Cell Channel Description

Cell Description

Band

Format

BCCH Carrier Number

GSM 450

Range 128

263

GSM 480

Range 128

310

GSM 710

Range 128

457

GSM 750

Range 128

457

T-GSM 810

Range 128

457

GSM 850

Range 128

147

GSM 900

Bitmap 0

20

DCS 1 800

Range 512

747

PCS 1 900

Range 512

647

PHYSICAL INFORMATION

Information Element

value/remarks

As default message contents, except:

Timing advance

Arbitrarily selected but different to default value.

Step 6: x = 750.

Step 7: The MS and SS are using a half rate TCH in hopping mode on cell A.

For M = 5:

Step 0: The MS and SS are using a half rate TCH in hopping mode on cell A.

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/H + ACCHs

– TDMA offset

Chosen arbitrarily.

– Timeslot number

Chosen arbitrarily, but not Zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency List IE.

– HSN

Chosen arbitrarily from the set.

(1,2,..63).

Frequency List after time

– Frequency List

See table below

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Non synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Starting Time

Indicates the frame number of cell B. that will occur approximately 1,1 seconds (238 frames have elapsed) after the HANDOVER COMMAND is sent by cell A.

HANDOVER COMMAND

Band

Frequency List

BCCH Carrier Number

Format

ARFCNs

ARFCN

GSM 450

Range 128

260, 262, 264, 266, 276, 279, 281, 283, 285, 287, 289, 291

274

GSM 480

Range 128

307, 309, 311, 313, 323, 326, 328, 330, 332, 334, 336, 338

321

GSM 710

Range 128

451, 455, 459, 461, 497, 498, 500, 501, 502, 503, 506, 508

477

GSM 750

Range 128

451, 455, 459, 461, 497, 498, 500, 501, 502, 503, 506, 508

477

T-GSM 810

Range 128

451, 455, 459, 461, 497, 498, 500, 501, 502, 503, 506, 508

477

GSM 850

Range 128

141, 145, 149, 151, 187, 193, 200, 201, 202, 203,235, 241

167

GSM 900

Bitmap 0

14, 18, 22, 24, 60, 66, 73, 74, 75, 76,108, 114

40

DCS 1 800

Range 1 024

749, 758, 761, 764, 771, 779, 782, 791, 798, 829, 832, 844

764

PCS 1 900

Range 1 024

649, 658, 661, 664, 671, 679, 682, 691, 698, 729, 732, 744

664

For M = 6:

Step 0: The MS and SS are using a half rate TCH in hopping mode on cell B.

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/H + ACCHs

– TDMA offset

Chosen arbitrarily.

– Timeslot number

Chosen arbitrarily but not Zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

Single RF channel.

– ARFCN

Chosen arbitrarily from the Cell Allocation of Cell A.

Synchronization Indication IE not included.

ASSIGNMENT COMMAND

Band

Channel Description

ARFCN

GSM 450

263

GSM 480

310

GSM 710

457

GSM 750

457

T-GSM 810

457

GSM 850

147

GSM 900

20

DCS 1 800

747

PCS 1 900

647

PHYSICAL INFORMATION

Information Element

value/remarks

As default message contents.

Step 6: x = 750.

Step 7: The MS and SS are using a half rate TCH in non-hopping mode on cell A.

For M = 7:

Step 0: The MS and SS are using a half rate TCH in non-hopping mode on cell A.

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

Chosen arbitrarily but not Zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency List IE.

– HSN

Chosen arbitrarily from the set.

(1,2,..63).

Frequency List after time

– Frequency List

See table below

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Non synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Mode of first channel

speech (full rate version 1 or half rate version 1).

HANDOVER COMMAND

Band

Frequency List

BCCH Carrier Number

Format

ARFCNs

ARFCN

GSM 450

Range 128

274, 279, 281, 283, 285, 287, 289, 291

274

GSM 480

Range 128

321, 326, 328, 330, 332, 334, 336, 338

321

GSM 710

Range 128

477, 498, 500, 501, 502, 503,506, 508

477

GSM 750

Range 128

477, 498, 500, 501, 502, 503,506, 508

477

T-GSM 810

Range 128

477, 498, 500, 501, 502, 503,506, 508

477

GSM 850

Range 128

167, 193, 200, 201, 202, 203 ,235, 241

167

GSM 900

Range 128

40, 66, 73, 74, 75, 76,108, 114

40

DCS 1 800

Variable Bitmap

764, 779, 782, 791, 798, 829, 832, 844

764

PCS 1 900

Variable Bitmap

(664, 679, 682, 691, 698, 729, 732, 744

664

PHYSICAL INFORMATION

Information Element

value/remarks

As default message contents, except:

Timing advance

Arbitrarily selected but different to default value.

Step 6: x = 750.

Step 7: The MS and SS are using a half rate TCH in hopping mode on cell B.

For M = 8:

Step 0: The MS and SS are using a half rate TCH in hopping mode on cell B.

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

Chosen arbitrarily but not Zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

Single RF channel.

– ARFCN

See table below

Synchronization Indication IE not included.

Band

Cell Description BCCH Carrier Number

and

Channel Description ARFCN

GSM 450

263

GSM 480

310

GSM 710

457

GSM 750

457

T-GSM 810

457

GSM 850

147

GSM 900

20

DCS 1 800

747

PCS 1 900

647

PHYSICAL INFORMATION

Information Element

value/remarks

As default message contents, except:

Timing advance

Arbitrarily selected but different to default value.

Step 6: x = 500.

Step 7: The MS and SS are using a full rate TCH in non-hopping mode on cell A.

Specific Message Contents For Mobiles not Supporting Speech

If the mobile station supports half rate, then the 12 kbps radio interface rate is not used for this test. With this restriction, the radio interface rate is selected arbitrarily from those supported.

The message contents shall be the same for the Mobile Station supporting speech , except for:

M = 3:

HANDOVER COMMAND

Information Element

value/remarks

Mode of first channel

Data, with the full rate radio interface rate that is in use.

M = 4, 7 and 8:

HANDOVER COMMAND

Information Element

value/remarks

Mode of first channel

Data, with half rate radio interface rate that is supported.

26.6.5.2 Handover / successful / call under establishment / non-synchronized

26.6.5.2.1 Conformance requirements

The MS shall correctly apply the handover procedure from SDCCH/8, TCH/F or TCH/H with or without frequency hopping to SDCCH/8, TCH/F or TCH/H with or without frequency hopping in the non-synchronized case during call establishment. The mobile shall correctly apply the handover procedures from non frequency hopping SDCCH/4 to SDCCH/8, TCH/F or TCH/H with or without frequency hopping. If during call establishment a Layer 3 MM or CC message just sent by the MS is not Layer 2 acknowledged before the channel change caused by the HANDOVER COMMAND message, the MS shall send the Layer 3 message to the new cell, using the same value in the N(SD) field, after the handover procedure.

References

3GPP TS 04.08 / 3GPP TS 44.018, subclauses 3.1.4.2, 3.4.4 and 9.1.15.

3GPP TS 04.13, subclause 5.2.6.2.

26.6.5.2.2 Test purpose

To test that when the MS is ordered to make a non-synchronized handover, it continuously sends access bursts on the main DCCH (and optionally the SACCH) until it receives a PHYSICAL INFORMATION message from the SS. To test that the MS correctly takes the values of the Timing Advance information element in the PHYSICAL INFORMATION message into account. To test that the MS activates the new channel correctly and transmits the HANDOVER COMPLETE message without undue delay. To test that the MS correctly retransmits Layer 3 MM or CC messages, that were not acknowledged by Layer 2 before the Handover, after completion of the Handover.

26.6.5.2.3 Method of test

Initial Conditions

System Simulator:

2 cells A and B with same LAI, default parameters, except:

Cell A has:

BCCH ARFCN = See table below.

Cell Allocation = See table below

PLMN colour code, NCC = as defaults.

BS colour code, BCC = as defaults.

PLMN_PERM = 00001010.

Cell B has:

BCCH ARFCN = See table below.

Cell Allocation = See table below

PLMN colour code, NCC = 3.

BS colour code, BCC = 0.

Both cells send SYSTEM INFORMATION TYPE 1 messages containing the complete Cell Allocation of the cell, see table below for format.

The timebase of Cells A and B shall be such that the edges of their timeslots are not coincident at the antenna connector.

For execution counter M = 1, 2 and 3 a combined CCH/SDCCH is used.

For execution counter M = 4 to 10 a non combined SDCCH is used.

Band

Cell A

Cell B

Both Cells

BCCH ARFCN

Cell Allocation

BCCH ARFCN

Cell Allocation

Format

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

734, 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 512

PCS 1 900

647

634, 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 512

Mobile Station:

The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A.

Specific PICS statements

– MS supports Speech (TSPC_TS1x_Speech)

PIXIT statements

– supported radio interface rates: 12kbps, 6kbps, 3,6kbps

Foreseen Final State of the MS

"Idle, updated" with TMSI allocated and camped on cell B.

Test Procedure

This procedure is repeated for execution counter M = 1, 2 .. 10 (See table 26.6‑1.)

A Mobile Originating Call is initiated on Cell A. After the MS has sent the SETUP message (and before the last L2 frame carrying the SETUP message is acknowledged by the SS) the SS sends a HANDOVER COMMAND message, ordering the MS to switch to cell B. The MS shall then begin to send access bursts on the new DCCH (and optionally the SACCH) to cell B. The SS observes the access bursts and after receiving n (n being arbitrarily chosen between values according to table 26.6‑2 of subclause 26.6.5) access bursts, the SS sends one PHYSICAL INFORMATION message with a Timing Advance as specified in table 26.6‑1 of subclause 26.6.5. The MS shall activate the channel in sending and receiving mode. The MS shall establish a signalling link. The MS shall be ready to transmit a HANDOVER COMPLETE message before x ms after the end of the PHYSICAL INFORMATION message, but not before a UA frame has been sent by the SS. The MS shall then again send the SETUP message to the SS, using the same value in the N(SD) field. Finally the SS sends a CHANNEL RELEASE to end the test.

The term "ready to transmit" is defined in 3GPP TS 04.13. The value of "x" depends upon the target channel and is specified in the specific message contents section.

Maximum Duration of Test

5 minutes, including 1 minute for any necessary operator actions.

Expected Sequence

The sequence is performed for execution counter M = 1, 2..10 (unless a particular TCH is not supported).

Step

Direction

Message

Comments

1

——–

——–

A MO call is initiated on cell A.

2

MS -> SS

CHANNEL REQUEST

Establ. Cause = "Originating call, NECI not set to 1

3

SS -> MS

IMMEDIATE ASSIGNMENT

See specific message contents.

4

MS -> SS

CM SERVICE REQUEST

CM Service Type = Mobile Origina- ting Call Establishment.

5

SS -> MS

CIPHERING MODE COMMAND

6

MS -> SS

CIPHERING MODE COMPLETE

7

MS -> SS

SETUP

Last L2 frame not acknowledged by the SS.

8

SS -> MS

HANDOVER COMMAND

See specific message contents.

9

MS -> SS

HANDOVER ACCESS

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

10

SS -> MS

PHYSICAL INFORMATION

Sent after reception of n HANDOVER ACCESS message. Timing Advance as specified in table 26.6‑1 of subclause 26.6.5.

11

MS -> SS

SABM

Sent without information field.

12

SS -> MS

UA

13

MS -> SS

HANDOVER COMPLETE

This message shall be ready to be transmitted before "x" ms after the completion of step 10.

14

MS -> SS

SETUP

Same N(SD) as in step 7.

15

SS -> MS

CHANNEL RELEASE

Specific Message Contents For Mobiles Supporting Speech

M = 1.

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents.

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency Short List IE.

– HSN

Chosen arbitrarily from the set.

(1,2,..63).

Synchronization IE is not included.

Frequency Short List after time

– Frequency Short List

See table below

Mode of the First Channel

Speech (full rate version 1 or half rate version 1).

HANDOVER COMMAND

Band

Frequency Short List

BCCH Carrier Number

Format

ARFCNs

ARFCN

GSM 450

Range 128

260, 262, 264, 266, 268, 270, 272, 292, 279, 281, 283, 285, 287, 289, 291

274

GSM 480

Range 128

307, 309, 311, 313, 315, 317, 319, 339, 326, 328, 330, 332, 334, 336, 338

321

GSM 710

Range 128

451, 455, 459, 461, 467, 468, 475, 490, 498, 500, 501, 502 ,503 , 506, 508

477

GSM 750

Range 128

451, 455, 459, 461, 467, 468, 475, 490, 498, 500, 501, 502 ,503 , 506, 508

477

T-GSM 810

Range 128

451, 455, 459, 461, 467, 468, 475, 490, 498, 500, 501, 502 ,503 , 506, 508

477

GSM 850

Range 128

141, 145, 149, 151, 157, 158, 165, 180, 193, 200, 201, 202, 203, 235, 241

167

GSM 900

Range 128

14, 18, 22, 24, 30, 31, 38, 53, 66, 73, 74, 75, 76, 108, 114

40

DCS 1 800

Range 128

756, 758, 761, 771, 779, 782, 791, 798, 829, 832, 844

764

PCS 1 900

Range 128

656, 658, 661, 671, 679, 682, 691, 698, 729, 732, 744

664

Step 13: "x" = 500.

M = 2.

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents.

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/H + ACCHs

– TDMA offset

Chosen arbitrarily.

– Timeslot number

Chosen arbitrarily but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Mobile Allocation.

– HSN

Chosen arbitrarily from the set (1, 2.. 63).

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Non synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Cell Channel Description

See table below

Mobile Allocation after time

Indicates ARFCNs in table below.

Mode of First Channel

Speech (full rate version 1 or half rate version 1).

HANDOVER COMMAND

Band

BCCH Carrier Number

Frequency Short List

Mobile Allocation after time

ARFCN

Format

ARFCNs

ARFCNs

GSM 450

274

Range 128

274, 279, 281, 283, 285, 287, 289, 291

281, 283, 285

GSM 480

321

Range 128

321, 326, 328, 330, 332, 334, 336, 338

328, 330, 332

GSM 710

477

Range 128

477, 498, 500, 501, 502, 503, 506, 508

500, 501, 502

GSM 750

477

Range 128

477, 498, 500, 501, 502, 503, 506, 508

500, 501, 502

T-GSM 810

477

Range 128

477, 498, 500, 501, 502, 503, 506, 508

500, 501, 502

GSM 850

167

Range 128

167, 193, 200, 201, 202, 203, 235, 241

200, 201, 202

GSM 900

40

Bitmap 0

40, 66, 73, 74, 75, 76, 108, 114

73, 74, 75

DCS 1 800

764

Range 512

761, 764, 771, 779, 782, 791, 798, 829, 832

791, 798, 829

PCS 1 900

664

Range 512

661, 664, 671, 679, 682, 691, 698, 729, 732

691, 698, 729

Step 13: "x" = 750.

M = 3.

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents.

DCS 1 800 or PCS 1 900 begin:

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

DCS 1 800: 764

PCS 1 900: 664

Channel Description

– Channel Type

SDCCH/8

– TDMA offset

Chosen arbitrarily.

– Timeslot number

Zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency Short List IE.

– HSN

Zero (this gives cyclic hopping).

Synchronization Indication IE not included.

Frequency Short List after time

– Frequency Short List

Use Range 128 to encode the following 2 frequencies:

DCS 1 800: 746, 779

PCS 1 900: 646, 679

Mode of First Channel

Signalling Only.

DCS 1 800 or PCS 1 900 end:

Other bands begin:

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

SDCCH/8

– TDMA offset

Chosen arbitrarily.

– Timeslot number

Zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency List IE.

– HSN

Chosen arbitrarily from the set {1, 2, …, 63}.

Synchronization Indication IE is not included

Frequency list after time.

– Frequency List

See table below

Channel Mode IE

signalling only.

HANDOVER COMMAND

Band

Cell Description

Frequency List

BCCH Carrier Number

Format

ARFCNs

GSM 450

274

Range 128

260, 262, 264, 266, 268, 270, 272, 276, 279, 281, 283, 285, 287, 289, 291

GSM 480

321

Range 128

307, 309, 311, 313, 315, 317, 319, 323, 326, 328, 330, 332, 334, 336, 338

GSM 710

477

Range 128

451, 455, 459, 461, 467, 468, 475, 497, 498, 500, 501, 502, 503, 506, 508

GSM 750

477

Range 128

451, 455, 459, 461, 467, 468, 475, 497, 498, 500, 501, 502, 503, 506, 508

T-GSM 810

477

Range 128

451, 455, 459, 461, 467, 468, 475, 497, 498, 500, 501, 502, 503, 506, 508

GSM 850

167

Range 128

141, 145, 149, 151, 157, 158, 165, 187, 193, 200, 201, 202, 203, 235, 241

GSM 900

40

Bitmap 0

14, 18, 22, 24, 30, 31, 38, 60, 66, 73, 74, 75, 76, 108, 114

DCS 1 800

764

Range 128

746, 779

PCS 1 900

664

Range 128

646, 679

Other bands end:

Step 13: "x" = 1 500.

M = 4.

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents except:

– Timeslot number

Arbitrary value, but not zero.

– ARFCN

See table below

Band

ARFCN

GSM 450

263

GSM 480

310

GSM 710

457

GSM 750

457

T-GSM 810

457

GSM 850

147

GSM 900

20

DCS 1 800

747

PCS 1 900

647

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

SDCCH/8

– TDMA offset

Chosen arbitrarily.

– Timeslot number

Arbitrary value but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency List IE.

– HSN

zero (this gives cyclic hopping).

Frequency List after time

– Frequency List

Use format from table below to encode the complete CA of Cell B.

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Non synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Channel Mode IE is not included.

HANDOVER COMMAND

Band

Cell Description

Frequency List

BCCH ARFCN

Format

ARFCNs

GSM 450

274

Range 128

260, 262, 264, 266, 268, 270, 272, 276, 279, 281, 283, 285, 287, 289

GSM 480

321

Range 128

307, 309, 311, 313, 315, 317, 319, 323, 326, 328, 330, 332, 334, 336

GSM 710

477

Range 128

451, 455, 459, 461, 467, 468, 475, 477, 498, 500, 501, 502, 503, 506

GSM 750

477

Range 128

451, 455, 459, 461, 467, 468, 475, 477, 498, 500, 501, 502, 503, 506

T-GSM 810

477

Range 128

451, 455, 459, 461, 467, 468, 475, 477, 498, 500, 501, 502, 503, 506

GSM 850

167

Range 128

141, 145, 149, 151, 157, 158, 165, 167, 193, 200, 201, 202, 203, 235

GSM 900

40

Range 128

14, 18, 22, 24, 30, 31, 38, 40, 66, 73, 74, 75, 76, 108

DCS 1 800

764

Range 1 024

complete CA of Cell B

PCS 1 900

664

Range 1 024

complete CA of Cell B

Step 13: "x" = 1 500.

M = 5.

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents except:

Channel Description

– Channel Type

TCH/F + ACCH’s

– Timeslot number

Arbitrary value but not zero.

– Hopping Channel

Single RF Channel.

– ARFCN

Chosen arbitrarily from the Cell Allocation of cell A.

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/H + ACCH’s

– TDMA offset

Chosen arbitrarily.

– Timeslot number

Arbitrary value but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

Single RF Channel.

– ARFCN

Chosen arbitrarily from the Cell Allocation of cell B.

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Non synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Mode of First Channel

Signalling only.

HANDOVER COMMAND

Band

ARFCN

GSM 450

274

GSM 480

321

GSM 710

477

GSM 750

477

T-GSM 810

477

GSM 850

167

GSM 900

40

DCS 1 800

764

PCS 1 900

664

Step 13: "x" = 750.

M = 6.

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents except:

L2 pseudo length

14 octets (11 + contents of the MA).

Channel Description

Channel Description.

– Channel Type

TCH/H + ACCHs

– TDMA offset

As default message contents.

– Timeslot number

Arbitrary value but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Mobile Allocation.

– HSN

Chosen arbitrarily from the set.

(1,2,..63).

Mobile Allocation

– Length

3 octets.

– Contents

Indicates all of the CA of cell A.

DCS 1 800 or PCS 1 900 begin:

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

DCS 1 800: 764

DCS 1 900: 664

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

Arbitrary value but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency List IE.

– HSN

Chosen arbitrarily from the set.

(1,2,..63).

Frequency List after time

– Frequency List

Use Range 256 to encode the following 9 frequencies:

DCS 1 800: 746, 749, 756, 761, 764, 798, 829, 832,844

PCS 1 900: 646, 649, 656, 661, 664, 698, 729, 732,744

Synchronization Indication IE not included.

Channel Mode

Signalling Only.

DCS 1 800 or PCS 1 900 end:Other bands begin:

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

Arbitrary value but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Mobile Allocation IE.

– HSN

Chosen arbitrarily from the set (1,2,..63).

Cell Channel Description

uses Range 128 to encode the complete CA of cell B.

Mobile Allocation after time

Indicates the following 5 frequencies: (260, 262, 264, 270, 274

Synchronization Indication IE not included.

Channel Mode

Signalling Only.

HANDOVER COMMAND

Band

Cell Description

Cell Channel Description

Mobile Allocation

BCCH ARFCN

Format

ARFCNs

GSM 450

274

Range 128

260, 262, 264, 270, 274

GSM 480

321

Range 128

307, 309, 311, 317, 321

GSM 710

477

Range 128

451, 455, 459, 468, 477

GSM 750

477

Range 128

451, 455, 459, 468, 477

T-GSM 810

477

Range 128

451, 455, 459, 468, 477

GSM 850

167

Range 128

141, 145, 149, 158, 167

GSM 900

40

Bitmap 0

14, 18, 22, 31, 40

Other bands end:

M = 7:

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents except:

L2 pseudo length

14 octets (11 + contents of the MA).

Channel Description

Channel Description.

– Channel Type

TCH/F + ACCHs

– Timeslot number

Zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Mobile Allocation.

– HSN

Zero.

Mobile Allocation

– Length

3 octets.

– Contents

Indicates only one frequency (see table below).

IMMEDIATE ASSIGNMENT

Band

ARFCN

GSM 450

291

GSM 480

338

GSM 710

508

GSM 750

508

T-GSM 810

508

GSM 850

235

GSM 900

114

DCS 1 800

844

PCS 1 900

744

HANDOVER COMMAND

DCS 1 800 or PCS 1 900

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

DCS 1 800: 764

PCS 1 900: 664

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

Arbitrary value but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Mobile Allocation.

– HSN

Chosen arbitrarily from the set.

(1,2,..63).

Cell Channel Description

Use Variable bit map to encode the complete CA of cell B.

Mobile Allocation

Indicates all of the CA of cell B except for the following three frequencies:

DCS 1 800: 764, 832 and 844

PCS 1 900: 664, 732, 744

Mode of First channel

Speech (full rate version 1 or half rate version 1).

Other Bands

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

Arbitrary value but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency List IE.

– HSN

Chosen arbitrarily from the set (1,2,..63).

Synchronization Indication IE is not included:

Frequency list after time.

– Frequency List IE

See table below

Mode of First channel

Speech (full rate version 1 or half rate version 1).

HANDOVER COMMAND

Band

Cell Description

Frequency List

BCCH Carrier Number

Format

ARFCNs

GSM 450

274

Range 128

260, 262, 264, 266, 268, 270, 272, 274, 276, 279, 281, 283, 285, 287, 289, 291

GSM 480

321

Range 128

307, 309, 311, 313, 315, 317, 319, 321, 323, 326, 328, 330, 332, 334, 336, 338

GSM 710

477

Range 128

451, 455, 459, 461, 467, 468, 475, 477, 497, 498, 500, 501, 502, 503, 506, 508

GSM 750

477

Range 128

451, 455, 459, 461, 467, 468, 475, 477, 497, 498, 500, 501, 502, 503, 506, 508

T-GSM 810

477

Range 128

451, 455, 459, 461, 467, 468, 475, 477, 497, 498, 500, 501, 502, 503, 506, 508

GSM 850

167

Range 128

141, 145, 149, 151, 157, 158, 165, 167, 187, 193, 200, 201, 202, 203, 235, 241

GSM 900

40

Bitmap 0

14, 18, 22, 24, 30, 31, 38, 40, 60, 66, 73, 74, 75, 76, 108, 114

Step 13: "x" = 500.

M = 8:

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents except:

L2 pseudo length

14 octets (11 + contents of the MA).

Channel Description

Channel Description.

– Channel Type

SDCCH/8

– TDMA offset

As default message contents.

– Timeslot number

Arbitrary value but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Mobile Allocation.

– HSN

Chosen arbitrarily from the set (1,2,..63).

Mobile Allocation

– Length

3octets.

– Contents

Indicates only three frequencies: (see table below).

IMMEDIATE ASSIGNMENT

Band

ARFCNs

GSM 450

281, 283, 285

GSM 480

328, 330, 332

GSM 710

500, 501, 502

GSM 750

500, 501, 502

T-GSM 810

500, 501, 502

GSM 850

200, 201, 202

GSM 900

73, 74, 75

DCS 1 800

773, 775, 779

PCS 1 900

673, 675, 679

HANDOVER COMMAND

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

Zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

Single RF Channel.

– ARFCN

Chosen arbitrarily from the Cell Allocation of Cell B, but not the BCCH carrier of Cell B.

Synchronization Indication IE not included.

Mode of First Channel

Speech (full rate version 1 or half rate version 1).

HANDOVER COMMAND

Band

ARFCN

GSM 450

274

GSM 480

321

GSM 710

477

GSM 750

477

T-GSM 810

477

GSM 850

167

GSM 900

40

DCS 1 800

764

PCS 1 900

664

Step 13: "x" = 500.

M = 9:

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents.

HANDOVER COMMAND

DCS 1 800 and PCS 1 900 begin:

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

DCS 1 800: 764

PCS 1 900: 664

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

Arbitrary value, but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency Short List IE.

– HSN

Zero (this gives cyclic hopping).

Frequency Short List after time

– Frequency Short List

Use Range 256 to encode the following 3 frequencies: DCS 1 800: 764, 779, 782

PCS 1 900: 664, 679, 682

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Non synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Channel mode

Speech (full rate version 1 or half rate version 1)

DCS 1 800 and PCS 1 900 end:

Other bands begin:

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel

– MAIO

Chosen arbitrarily from the set {0, 1}.

– HSN

Chosen arbitrarily from the set {1, 2,…, 63}.

Synchronization Indication IE is not included

Frequency List, after time.

– Frequency List

allocates the following two frequencies See table below.

Mode of the first channel

Speech (full rate version 1 or half rate version 1).

HANDOVER COMMAND

Band

BCCH Carrier Number

Frequency List ARFCNs

GSM 450

274

260, 291

GSM 480

321

307, 338

GSM 710

447

451, 508

GSM 750

447

451, 508

T-GSM 810

447

451, 508

GSM 850

167

141, 241

GSM 900

40

14, 114

Other bands end:

Step 13: "x" = 500.

M = 10:

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents.

HANDOVER COMMAND

DCS 1 800 or PCS 1 9 00 begin:

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

DCS 1 800: 764

PCS 1 900: 664

Channel Description

– Channel Type

TCH/H + ACCHs

– TDMA offset

Chosen arbitrarily.

– Timeslot number

Arbitrary value, but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency List IE.

– HSN

Zero (this gives cyclic hopping).

Frequency List after time

– Frequency List

Use Variable Bit Map to encode the following 15 frequencies:

DCS 1 800: 739, 743,746,749, 756, 758, 764, 771, 779, 782, 791, 798, 829, 832, 844

PCS 1 900: 639, 643,646,649, 656, 658, 664, 671, 679, 682, 691, 698, 729, 732, 744

Synchronization Indication IE is not included.

Channel mode

Speech (full rate version 1 or half rate version 1).

DCS 1 800 or PCS 1 9 00 end:

Step 13: "x" = 750.

Other bands begin:

Information Element

value/remarks

As default message contents, except:

Cell Description

– Network Colour Code

3

– Base Station Colour Code

0

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/H + ACCHs

– TDMA offset

Chosen arbitrarily.

– Timeslot number

Chosen arbitrarily but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set {0, 1}.

– HSN

Chosen arbitrarily from the set {1, 2,…, 63}.

Synchronization Indication IE is not included

Frequency List, after time

– Frequency List

allocates the following two frequencies { See table below }.

Channel Mode IE

speech (full rate version 1 or half rate version 1).

HANDOVER COMMAND

Band

BCCH Carrier Number

Frequency List ARFCNs

GSM 450

274

274, 291

GSM 480

321

321, 338

GSM 710

447

477, 508

GSM 750

447

477, 508

T-GSM 810

447

477, 508

GSM 850

167

167, 241

GSM 900

40

40, 114

Other bands end:

Step 13: "x" = 750.

Specific Message Contents For Mobiles not Supporting Speech

The message contents shall be the same for the Mobile Station supporting speech , except for:

M = 1, 7, 8 and 9:

HANDOVER COMMAND

Information Element

value/remarks

Mode of first channel

Data, with full rate radio interface rate which is supported.

M = 2 and 10:

HANDOVER COMMAND

Information Element

value/remarks

Mode of first channel

Data, with half rate radio interface rate which is supported.

26.6.5.3 Handover / successful / active call / finely synchronized

26.6.5.3.1 Conformance requirements

The MS shall correctly apply the handover procedure from TCH/F with frequency hopping to TCH/F without frequency hopping in the finely synchronized case when a call is in progress.

The MS shall correctly apply the handover procedure from TCH/H with frequency hopping to TCH/H without frequency hopping in the finely synchronized case when a call is in progress. This requirement does not apply to MSs not supporting TCH/H.

References

3GPP TS 04.08 / 3GPP TS 44.018 subclauses 3.4.4, 9.1.14, 9.1.15 and 9.1.16.

3GPP TS 04.13 subclause 5.2.6.

3GPP TS 05.05 subclause 4.1.1.

3GPP TS 05.10, subclause 6.6.

26.6.5.3.2 Test purpose

To test that when the MS is ordered to make a finely synchronized handover to a synchronized cell, it sends 4 access bursts on the main DCCH (and optionally on the SACCH) and then activates the channel correctly, taking into account the value of any Starting Time information element, power command and correctly calculating the timing advance to use. To test the MS activates the new channel correctly and transmits the HANDOVER COMPLETE message without undue delay.

26.6.5.3.3 Method of test

Initial Conditions

System Simulator:

2 cells, A and B, with same LAI, default parameters, except:

The BCCH of cell A is sent k bit periods before the BCCH of cell B. The timing advance in cell A sent to the MS is y bit periods. k and y are selected such that 0 < (2k+y) mod 256 < 60.

Cell B BCCH ARFCN

GSM 450

274

GSM 480

321

GSM 710

477

GSM 750

477

T-GSM 810

477

GSM 850

167

GSM 900

40

DCS 1 800

764

PCS 1 900

647

Mobile Station:

The MS is in the active state (U10) of a call (on cell A). The MS is using a power level P. Where P is a power level within the supported range of that type of MS.

Specific PICS statements

  • TSPC_Type_xxx (all appropriate power classes)
  • MS supports Speech (TSPC_TS1x_Speech)

PIXIT statements

– supported radio interface rates: 12kbps, 6kbps, 3,6kbps

Foreseen Final State of the MS

The active state (U10) of a mobile call (on cell B).

Test Procedure

This procedure is repeated for execution counter M = 1 to 2. (See table 26.6‑1.)

The MS is in the active state (U10) of a call on cell A. The SS sends a HANDOVER COMMAND on the main DCCH. The MS shall (at the time specified in the Starting Time information element, if included) send 4 access bursts, in 4 successive slots on the new DCCH to cell B (Note: Before completion of the 4 access bursts on the DCCH, additional access bursts may also be sent on the SACCH). Then the MS shall establish a signalling link indicating the correct Timing Advance and power level and send a HANDOVER COMPLETE message.

The MS shall be "ready to transmit" a HANDOVER COMPLETE message before "x" ms after the end of the HANDOVER COMMAND message, but not before a UA frame has been sent by the SS.

The term "ready to transmit" is defined in 3GPP TS 04.13. The value of "x" depends upon the target channel and is specified in the specific message contents section.

Maximum Duration of Test

5 minutes, including 1 minute for any necessary operator actions.

Expected Sequence

This sequence is performed for execution counter M = 1 for an MS which only supports TCH/F.

This sequence is performed for execution counter M = 1 to 2 for an MS which supports TCH/F and H.

Step

Direction

Message

Comments

0

MS -> SS

M = 1, The MS and SS are using a full rate TCH in hopping mode on cell A. M = 2, The MS and SS are using a half rate TCH in hopping mode on cell A.

1

SS -> MS

HANDOVER COMMAND

See Specific Message Contents.

2

MS -> SS

HANDOVER ACCESS

See specific message contents. Four messages.

3

MS -> SS

HANDOVER ACCESS

are transmitted to Cell B in 4 successive slots.

4

MS -> SS

HANDOVER ACCESS

on the new DCCH.

5

MS -> SS

HANDOVER ACCESS

Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH

6

MS -> SS

SABM

Sent without information field.

7

SS -> MS

UA

8

MS -> SS

HANDOVER COMPLETE

This message shall be ready to be transmitted before "x" ms after the completion of step 1. See specific message contents.

9

SS

The header of the next uplink SACCH is examined and the Timing Advance and Power Level indications are examined. The correct timing advance shall be indicated. A tolerance of ± 2 bit periods is allowed. The power level indication shall indicate the power level used in the handover command (see note).

10

MS, SS

M =1, The MS and SS are using a full rate TCH in non-hopping mode on cell B M = 2, The MS and SS are using a half rate TCH in non-hopping mode on cell B.

NOTE: In case the Handover procedure is completed within 1 SACCH multiframe, the powerlevel indication, of the power level used in the handover command, will be done in the second uplink SACCH sent on the target cell. As the indicated value shall be the power control level actually used by the mobile for the last burst of the previous SACCH period, the first uplink SACCH header will indicate the powerlevel used by the MS on the old cell, if the Handover procedure is completed within 1 SACCH multiframe. In this case the powerlevel examination shall be done in the second uplink SACCH header sent on the target cell. Reference: 05.08/45.008 clause 4.2.

Specific Message Contents

M = 1:

HANDOVER COMMAND

Information Element

value/remark

As default message contents, except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel type

TCH/F + ACCHs

– Timeslot Number

Arbitrary value, but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

Single RF Channel.

– ARFCN

See table below

Handover Reference

– Value

Chosen arbitrarily from the range (0, 1..255).

Power command

– Power Level

Arbitrarily chosen, but different to the one already in use and within the range supported by that type of MS.

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

HANDOVER COMMAND

Band

BCCH Carrier Number and Channel Description ARFCN

GSM 450

274

GSM 480

321

GSM 710

477

GSM 750

477

T-GSM 810

477

GSM 850

167

GSM 90

40

DCS 1 800

764

PCS 1 900

647

HANDOVER ACCESS

Information Element

value/remark

As default message contents except:

Handover Reference

– Value

Same as HANDOVER COMMAND

Step 8: x = 650 ms.

M = 2:

HANDOVER COMMAND

Information Element

value/remark

As default message contents, except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel type

TCH/H + ACCHs

– TDMA offset

Chosen arbitrarily.

– Timeslot Number

Arbitrary value, but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

Single RF Channel.

– ARFCN

See table below

Handover Reference

– Value

Chosen arbitrarily from the range (0, 1..255).

Power command

– Power Level

Arbitrarily chosen, but different to the one already in use and within the range supported by that type of MS.

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Mode of First Channel

If speech supported:

Speech half rate version 1.

if speech not supported:

Arbitrary from the half rate data rates supported.

HANDOVER COMMAND

Band

BCCH Carrier Number and Channel Description ARFCN

GSM 450

274

GSM 480

321

GSM 710

477

GSM 750

477

T-GSM 810

477

GSM 850

167

GSM 90

40

DCS 1 800

764

PCS 1 900

647

HANDOVER ACCESS

Information Element

value/remark

As default message contents except:

Handover Reference

– Value

Same as HANDOVER COMMAND

Step 8: x = 900 ms.

26.6.5.4 Handover / successful / call under establishment / finely synchronized

26.6.5.4.1 Conformance requirements

The MS shall correctly apply the handover procedure from SDCCH/8 or TCH/F with or without frequency hopping to SDCCH4, SDCCH/8 or TCH/F with or without frequency hopping in the finely synchronized case, during call establishment.

If during call establishment a Layer 3 MM or CC message just sent by the MS is not Layer 2 acknowledged before the channel change caused by the HANDOVER COMMAND message, the MS shall send the Layer 3 message to the new cell, using the same value in the N(SD) field, after the handover procedure.

References

3GPP TS 05.10, subclause 6.6.

3GPP TS 04.08 / 3GPP TS 44.018, subclause 3.4.4.

3GPP TS 04.08 / 3GPP TS 44.018, subclause 3.1.4.2.

3GPP TS 04.13, subclause 5.2.6.

26.6.5.4.2 Test purpose

To test that when the MS is ordered to make a finely synchronized handover to a synchronized cell, it sends 4 access bursts on the main DCCH (and optionally the SACCH) and then activates the channel correctly, taking into account the value of any Starting Time information element, power command and correctly calculating the timing advance to use. To test that the MS correctly retransmits Layer 3 MM or CC messages that were not acknowledged by Layer 2 before the Handover, after completion of the Handover. To verify the MS transmits the HANDOVER COMPLETE message without undue delay.

26.6.5.4.3 Method of test

Initial Conditions

System Simulator:

2 cells, A and B, with same LAI, default parameters, except:

The BCCH of cell A is sent k bit periods before the BCCH of cell B. The timing advance in cell A sent to the MS is y bit periods. k and y are selected such that 0 < (2k + y) mod 256 < 60.

The frame numbers of cells A and B shall be different by 100.

Cell A

Call B

Band

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

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

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

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

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

GSM 850

147

137, 144, 147, 153, 161, 169, 172, 173, 179, 186, 193, 200, 201, 202, 203, 235, 24

167

141, 145, 149, 151, 157, 158, 165, 167, 187, 193, 200, 201, 202, 203, 235, 241

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

DCS 1 800

747

734, 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

PCS 1 900

647

634, 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

Mobile Station:

The MS is in the "idle, updated" state, with a TMSI allocated and camped on cell A. The MS is using a power level P, where P is a power level within the supported range of that type of MS.

Specific PICS statements

  • MS supports Speech (TSPC_TS1x_Speech)
  • TSPC_Type_xxx (all appropriate power classes)

PIXIT statements

– supported radio interface rates: 12kbps, 6kbps, 3,6kbps

Foreseen Final State of the MS

"Idle, updated" with TMSI allocated and camped on cell B.

Test Procedure

This procedure is repeated for execution counter M = 1, 2, 3, 4 (see table 26.6‑1).

A Mobile Originating Call is initiated on cell A. After the MS has sent the SETUP message (and before the last L2 frame carrying the SETUP message is acknowledged by the SS) the SS sends a HANDOVER COMMAND message, ordering the MS to switch to cell B. The MS shall then (at the time specified in the Starting Time information element, if included) send 4 access bursts, in successive slots on the new DCCH to cell B (Note: Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH). Then the MS shall establish a signalling link indicating the correct timing advance and power level and send a HANDOVER COMPLETE message. The MS shall be "ready to transmit" the HANDOVER COMPLETE message before "x" ms after the end of the HANDOVER COMMAND message, but not before a UA frame has been sent by the SS. The MS shall then again send the SETUP message to the SS, using the same value in the N(SD) field. Finally the SS sends a CHANNEL RELEASE to end the test.

The term "ready to transmit" is defined in 3GPP TS 04.13. The value "x" depends upon the target channel and is specified in the specific message contents section.

Maximum Duration of Test

5 minutes, including 1 minute for any necessary operator actions.

Expected Sequence

This procedure is repeated for execution counter M = 1, 2, 3, 4 (unless a particular TCH is not supported).

Step

Direction

Message

Comments

1

——–

——–

A MO call is initiated.

2

MS -> SS

CHANNEL REQUEST

Establ. Cause = "Originating call, NECI not set to 1"

3

SS -> MS

IMMEDIATE ASSIGNMENT

See Specific Message contents.

4

MS -> SS

CM SERVICE REQUEST

CM Service Type = Mobile Origina- ting Call Establishment.

5

SS -> MS

CIPHERING MODE COMMAND

6

MS -> SS

CIPHERING MODE COMPLETE

7

MS -> SS

SETUP

Last L2 frame not acknowledged by the SS.

8

SS -> MS

HANDOVER COMMAND

See Specific Message Contents.

9

MS -> SS

HANDOVER ACCESS

10

MS -> SS

HANDOVER ACCESS

11

MS -> SS

HANDOVER ACCESS

See Specific message contents. Four.

12

MS -> SS

HANDOVER ACCESS

Messages are transmitted to cell B in 4 successive slots on the new DCCH. If the HANDOVER COMMAND message includes a starting time IE then the first HANDOVER ACCESS message shall be transmitted in the indicated frame (unless the starting time has elapsed).

Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH.

13

MS -> SS

SABM

Sent without information field.

14

SS -> MS

UA

15

MS -> SS

HANDOVER COMPLETE

The message shall be ready to be transmitted before "x" ms after the completion of step 8.

16

SS

The header of the next uplink SACCH is examined and the Timing Advance and Power Level indications are examined. The correct timing advance shall be indicated. A tolerance of ± 2 bit periods is allowed. The power level indication shall indicate the power level used in the handover command (see note).

17

MS -> SS

SETUP

Same N(SD) as in step 7.

18

SS -> MS

CHANNEL RELEASE

NOTE: In case the Handover procedure is completed within 1 SACCH multiframe, the powerlevel indication, of the power level used in the handover command, will be done in the second uplink SACCH sent on the target cell. As the indicated value shall be the power control level actually used by the mobile for the last burst of the previous SACCH period, the first uplink SACCH header will indicate the powerlevel used by the MS on the old cell, if the Handover procedure is completed within 1 SACCH multiframe. In this case the powerlevel examination shall be done in the second uplink SACCH header sent on the target cell. Reference: 05.08/45.008 clause 4.2.

Specific Message Contents

M = 1:

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents except:

Channel Description

Channel Description.

– Channel Type

SDCCH/8

– TDMA offset

As default message contents.

– Timeslot number

Arbitrary value, but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Mobile Allocation.

– HSN

Chosen arbitrarily from the set.

(1,2,..63).

Mobile Allocation

Indicates all of the CA of cell A except for the BCCH frequency.

HANDOVER COMMAND

Information Element

value/remark

As default message contents except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

SDCCH/8

– TDMA offset

Chosen arbitrarily.

– Timeslot number

Arbitrary value, but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency List IE.

– HSN

Zero (this gives cyclic hopping).

Frequency List after time

– Frequency List

Use format from table below to encode the complete CA of Cell B.

Handover Reference

– Value

Chosen arbitrarily from the range (0, 1..255).

Power command

– Power Level

Arbitrarily chosen, but different to the one already in use and within the range supported by the MS.

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Mode of First Channel

Signalling only

HANDOVER COMMAND

Band

Cell Description

Frequency List

BCCH Carrier Number

Format

GSM 450

274

Range 128

GSM 480

321

Range 128

GSM 710

477

Range 128

GSM 750

477

Range 128

T-GSM 810

477

Range 128

GSM 850

167

Range 128

GSM 900

40

Bitmap 0

DCS 1 800

764

Range 512

PCS 1 900

664

Range 512

HANDOVER ACCESS

Information Element

value/remark

As default message contents except:

Handover Reference

– Value

Same as HANDOVER COMMAND

Step 15: x = 1 500 ms.

M = 2:

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents except:

Channel Description

Channel Description.

– Channel Type

SDCCH/8

– TDMA offset

As default message contents.

– Timeslot number

zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Mobile Allocation.

– HSN

Zero (this gives cyclic hopping).

Mobile Allocation

Indicates all of the CA of cell A except for the following 2 frequencies: See table below.

IMMEDIATE ASSIGNMENT

Band

Mobile Allocation

ARFCNs

GSM 450

263 and 275

GSM 480

310 and 322

GSM 710

457 and 489

GSM 750

457 and 489

T-GSM 810

457 and 489

GSM 850

147 and 179

GSM 900

20 and 52

DCS 1 800

747 and 767

PCS 1 900

647 and 667

HANDOVER COMMAND

Information Element

value/remark

As default message contents except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

SDCCH/4

– TDMA offset

Chosen arbitrarily.

– Timeslot number

zero.

– Training Sequence Code

same as the BCCH.

– Hopping

Single RF Channel.

– ARFCN

See table below

Handover Reference

– Value

Chosen arbitrarily from the range (0, 1..255).

Power command

– Power Level

Arbitrarily chosen, but different to the one already in use and within the range supported by the MS.

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Starting Time

Indicates the frame number of cell B that will occur approximately 1,1 seconds after the HANDOVER COMMAND message is sent by cell A.

HANDOVER COMMAND

Band

BCCH Carrier Number and Channel Description ARFCN

GSM 450

274

GSM 480

321

GSM 710

477

GSM 750

477

T-GSM 810

477

GSM 850

167

GSM 900

40

DCS 1 800

764

PCS 1 900

664

HANDOVER ACCESS

Information Element

value/remark

As default message contents except:

Handover Reference

– Value

Same as HANDOVER COMMAND

Step 15: x = 2 600 ms.

M = 3:

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents except:

Channel Description

Channel Description.

– Channel Type

TCH/F + ACCHs

– Timeslot number

Arbitrary value, but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

Single RF Channel.

– ARFCN

See table below

IMMEDIATE ASSIGNMENT

Band

Channel Description ARFCN

GSM 450

263

GSM 480

310

GSM 710

457

GSM 750

457

T-GSM 810

457

GSM 850

147

GSM 900

20

DCS 1 800

747

PCS 1 900

647

HANDOVER COMMAND

DCS 1 800 or PCS 1 900

Information Element

value/remark

As default message contents except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

DCS 1 800: 764

PCS 1 900; 664

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

zero

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency Short list IE.

– HSN

Chosen arbitrarily from the set (1,2,..63).

Frequency Short List after time

– Frequency Short List

Use Range 128 to encode the following 3 frequencies: DCS 1 800: 758, 761, 771

PCS 1 900: 658, 661, 671

Handover Reference

– Value

Chosen arbitrarily from the range (0, 1..255).

Power command

– Power Level

Arbitrarily chosen, but different to the one already in use and within the range supported by the MS.

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

GSM 450, GSM 480, GSM 850:

Information Element

value/remark

As default message contents except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency List IE.

– HSN

Chosen arbitrarily from the set (1,2,..63).

Frequency List after time

– Frequency List

See table below

Handover Reference

– Value

Chosen arbitrarily from the range (0, 1..255).

Power command

– Power Level

Arbitrarily chosen, but different to the one already in use and within the range supported by the MS.

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Band

BCCH ARFCN

Frequency List after Time

GSM 450

274

279, 285, 287, 289

GSM 480

321

326, 332, 334, 336

GSM 850

167

193, 202, 203, 235

GSM 710, GSM 750, T-GSM 810, GSM 900:

Information Element

value/remark

As default message contents except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

RF hopping channel.

– MAIO

Chosen arbitrarily from the set (0, 1 to N‑1), where N is the number of frequencies encoded in the Frequency Channel Sequence IE.

– HSN

Chosen arbitrarily from the set (1,2,..63).

Frequency Channel Sequence after time

– Frequency Channel Sequence

See table below

Handover Reference

– Value

Chosen arbitrarily from the range (0, 1..255).

Power command

– Power Level

Arbitrarily chosen, but different to the one already in use and within the range supported by the MS.

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Band

BCCH ARFCN

Frequency Channel Sequence

GSM 710

477

498, 502, 503, 506

GSM 750

477

498, 502, 503, 506

T-GSM 810

477

498, 502, 503, 506

GSM 900

40

66, 75, 76, 108

HANDOVER ACCESS

Information Element

value/remark

As default message contents except:

Handover Reference

– Value

Same as HANDOVER COMMAND

Step 15: x = 650 ms.

M = 4:

IMMEDIATE ASSIGNMENT

Information Element

value/remark

As default message contents except:

Channel Description

Channel Description.

– Channel Type

SDCCH/8

– TDMA offset

As default message contents.

– Timeslot number

As default message contents.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

Single RF Channel.

– ARFCN

Chosen arbitrarily from the Cell Allocation of Cell A.

HANDOVER COMMAND

Information Element

value/remark

As default message contents except:

Cell Description

– Network Colour Code

1

– Base Station Colour Code

5

– BCCH Carrier Number

See table below

Channel Description

– Channel Type

TCH/F + ACCHs

– Timeslot number

Arbitrary value, but not zero.

– Training Sequence Code

Chosen arbitrarily.

– Hopping

Single RF Channel.

– ARFCN

Chosen arbitrarily from the Cell Allocation of Cell B.

Handover Reference

– Value

Chosen arbitrarily from the range (0, 1..255).

Power command

– Power Level

Arbitrarily chosen, but different to the one already in use and within the range supported by the MS.

Synchronization Indication

– Report Observed Time Difference

Shall not be included.

– Synchronization Indication

"Synchronized".

– Normal Cell Indication

Ignore out of range timing advance.

Channel Mode

If speech is supported: Speech (full rate version 1 or half rate version 1).

If speech is not supported: arbitrary from those supported (12, 6, 3,6 kbps).

HANDOVER COMMAND

Band

BCCH Carrier Number

GSM 450

274

GSM 480

321

GSM 710

477

GSM 750

477

T-GSM 810

477

GSM 850

167

GSM 900

40

DCS 1 800

764

PCS 1 900

664

HANDOVER ACCESS

Information Element

value/remark

As default message contents except:

Handover Reference

– Value

Same as HANDOVER COMMAND

Step 15: x = 650 ms.

26.6.5.5 Pre-synchronized handovers

26.6.5.5.1 Handover / successful / active call / pre-synchronized / Timing Advance IE not included

If an MS does not implement the pre-synchronized handover procedure correctly then calls may fail.

26.6.5.5.1.1 Conformance requirements

1 The MS shall correctly apply the handover procedure from TCH/F without frequency hopping to TCH/F without frequency hopping in the pre-synchronized case when a call is active.

2 When the Timing Advance information element is not included in the HANDOVER COMMAND, the MS shall access the new cell with the default timing advance of 1 bit period.

3 The MS shall be ready to transmit the HANDOVER COMPLETE message within 650 ms of the end of the HANDOVER COMMAND message.

References

Conformance requirement 1: 3GPP TS 04.08 / 3GPP TS 44.018 subclause 3.4.4.

Conformance requirement 2: 3GPP TS 05.10, subclause 6.6.

Conformance requirement 3: 3GPP TS 04.13, subclause 5.2.6.1.

26.6.5.5.1.2 Test purpose

To verify that when the MS is ordered to make a pre-synchronized handover to another cell, it sends 4 access bursts on the main DCCH (and optionally on the SACCH) and then activates the channel correctly and correctly calculates the time to transmit.

26.6.5.5.1.3 Method of test

Initial Conditions

System Simulator:

2 cells, A and B, with same LAI, default parameters.

The BCCH of cell A is sent k bit periods before the BCCH of cell B. k is arbitrarily selected.

Mobile Station:

The MS is in the active state (U10) of a call (on cell A) using a full rate TCH in non-hopping mode.

Specific PICS statements

PIXIT statements

Foreseen Final State of the MS

The active state (U10) of a mobile call (on cell B) using a full rate TCH in non-hopping mode.

Test Procedure

The MS is in the active state (U10) of a call on cell A. The SS sends a HANDOVER COMMAND for a pre-synchronized handover without the Timing Advance IE on the main DCCH. The MS shall send 4 access bursts, in 4 successive slots of the new DCCH to cell B with a Timing Advance of zero (Note: Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH). Then the MS shall establish a signalling link using a Timing Advance of one and send a HANDOVER COMPLETE message. The MS shall be ready to transmit the HANDOVER COMPLETE message before 650 ms after the end of the HANDOVER COMMAND message, but not before a UA frame has been sent by the SS.

The term "ready to transmit" is defined in 3GPP TS 04.13.

Maximum Duration of Test

5 s.

Expected Sequence

Step

Direction

Message

Comments

1

SS -> MS

HANDOVER COMMAND

See specific message contents below.

2

MS -> SS

HANDOVER ACCESS

Handover Reference as included in the

3

MS -> SS

HANDOVER ACCESS

HANDOVER COMMAND.

4

MS -> SS

HANDOVER ACCESS

5

MS -> SS

HANDOVER ACCESS

Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH.

6

MS -> SS

SABM

Sent without information field.

7

SS -> MS

UA

8

MS -> SS

HANDOVER COMPLETE

This message shall be ready to be transmitted before 650 ms after the completion of step 1.

9

SS

The SS checks that the timing advance reported in the layer 1 header of the SACCH message that is sent in the first SACCH multiframe following the SABM is 1 bit period.

Specific Message Contents

HANDOVER COMMAND

As default message contents, except:

Synchronization Indication

pre-synchronized; ROT=0; NCI=0.

26.6.5.5.2 Handover / successful / call being established / pre-synchronized / timing advance IE is included / reporting of observed time difference requested

If an MS does not implement the pre-synchronized handover procedure correctly then calls may fail.

If an MS does not report the observed time difference between cells correctly then pseudo synchronized handovers might not be possible for any MS.

26.6.5.5.2.1 Conformance requirements

1 The MS shall correctly apply the handover procedure from an SDCCH/4 to a TCH/F without frequency hopping in the pre-synchronized case while a call is being established.

2 If during call establishment a Layer 3 MM or CC message just sent by the MS is not Layer 2 acknowledged before the channel change caused by the HANDOVER COMMAND message, the MS shall send the Layer 3 message to the new cell, using the same value in the N(SD) field, after the handover procedure.

3 When the Timing Advance information element is included in the HANDOVER COMMAND, the MS shall access the new cell with the timing advance included in the Timing Advance IE.

4 The MS shall be ready to transmit the HANDOVER COMPLETE message within 650 ms of the end of the HANDOVER COMMAND message.

5 When requested to do so in the HANDOVER COMMAND message, the MS shall return the Mobile Time Difference IE in the HANDOVER COMPLETE message indicating the sum of the observed time difference between the cells and the timing advance used on the old cell.

References

Conformance requirement 1: 3GPP TS 04.08 / 3GPP TS 44.018, subclause 3.4.4.

Conformance requirement 2: 3GPP TS 04.08 / 3GPP TS 44.018, subclause 3.1.4.3.

Conformance requirement 3: 3GPP TS 05.10, subclause 6.6.

Conformance requirement 4: 3GPP TS 04.13, subclause 5.2.6.1.

Conformance requirement 5: 3GPP TS 04.08 / 3GPP TS 44.018, subclause 10.5.2.39.

26.6.5.5.2.2 Test purpose

To test that when the MS is ordered to make a pre-synchronized handover to another cell, it sends 4 access bursts on the main DCCH (and optionally on the SACCH) and then activates the channel correctly and correctly calculates the time to transmit. To test that the MS correctly retransmits Layer 3 MM or CC messages that were not acknowledged by Layer 2 before the Handover, after completion of the Handover. To test that the MS correctly reports on the time difference between the cells.

26.6.5.5.2.3 Method of test

Initial Conditions

System Simulator:

2 cells, A and B, with same LAI, default parameters.

The BCCH of cell A is sent k bit periods before the BCCH of cell B.

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 B.

Test Procedure

A Mobile Originating Call is initiated. The SS sends an IMMEDIATE ASSIGNMENT message allocating an SDCCH/4. The MS is commanded to use a timing advance of y bit periods on cell A. After the MS has sent the SETUP message (and before the last L2 frame carrying the SETUP message is acknowledged by the SS) the SS sends a HANDOVER COMMAND, ordering the MS to switch to cell B. The MS shall then send 4 access bursts, in 4 successive slots of the new DCCH to cell B (Note: Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH). Then the MS shall establish a signalling link using the correct timing advance and send a HANDOVER COMPLETE message. The MS shall be ready to transmit the HANDOVER COMPLETE message before 650 ms after the end of the HANDOVER COMMAND message, but not before a UA frame has been sent by the SS.

The term "ready to transmit" is defined in 3GPP TS 04.13.

The MS shall then again send the SETUP message to the SS, using the same value in the N(SD) field. Finally the SS sends a CHANNEL RELEASE to end the test.

Maximum Duration of Test

20 s.

Expected Sequence

Step

Direction

Message

Comments

1

——–

——–

A MO call is initiated.

2

MS -> SS

CHANNEL REQUEST

3

SS -> MS

IMMEDIATE ASSIGNMENT

to an SDCCH/4.

4

MS -> SS

CM SERVICE REQUEST

5

SS -> MS

CIPHERING MODE COMMAND

6

MS -> SS

CIPHERING MODE COMPLETE

7

MS -> SS

SETUP

Last L2 frame not acknowledged by the SS.

8

SS -> MS

HANDOVER COMMAND

See specific message contents below.

9

MS -> SS

HANDOVER ACCESS

Handover Reference as included in the

10

MS -> SS

HANDOVER ACCESS

HANDOVER COMMAND

11

MS -> SS

HANDOVER ACCESS

12

MS -> SS

HANDOVER ACCESS

Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH.

13

MS -> SS

SABM

Sent without information field.

14

SS -> MS

UA

15

MS -> SS

HANDOVER COMPLETE

This message shall be ready to be transmitted before 650 ms after the completion of step 8. Shall include the Mobile Time Difference IE with value (2k+y) mod 2,097,152 half bit periods. A tolerance of ±2 half bit periods is allowed.

16

MS -> SS

SETUP

Same N(SD) as in step 7

17

SS

The SS checks that the timing advance reported in the layer 1 header of the SACCH message that is sent in the first SACCH multiframe following the SABM is 9 bit periods. A tolerance of ± 2 bit periods is allowed.

18

SS -> MS

CHANNEL RELEASE

Specific Message Contents

HANDOVER COMMAND

As default message contents, except:

Synchronization Indication

pre-synchronized; ROT=1; NCI=0.

Timing Advance

9 bit periods.

26.6.5.6 Handover / successful / active call / pseudo synchronized

If MSs that claim to support this procedure do not correctly implement it, then calls may fail.

26.6.5.6.1 Conformance requirements

1 The MS shall correctly apply the handover procedure from TCH/F without frequency hopping to TCH/F without frequency hopping in the pseudo synchronized case when a call is in progress.

2 The MS shall access the new cell with the correct timing advance.

3 The MS shall be ready to transmit the HANDOVER COMPLETE message within 650 ms of the end of the HANDOVER COMMAND message.

4 When requested to do so in the HANDOVER COMMAND message, the MS shall return the Mobile Time Difference IE in the HANDOVER COMPLETE message indicating the sum of the observed time difference between the cells and the timing advance used on the old cell.

References

Conformance requirement 1: 3GPP TS 04.08 / 3GPP TS 44.018 subclause 3.4.4.

Conformance requirement 2: 3GPP TS 05.10, subclause 6.6.

Conformance requirement 3: 3GPP TS 04.13, subclause 5.2.6.1.

Conformance requirement 4: 3GPP TS 04.08 / 3GPP TS 44.018, subclause 10.5.2.39.

26.6.5.6.2 Test purpose

To test that when the MS is ordered to make a pseudo synchronized handover to another cell, it sends 4 access bursts on the main DCCH (and optionally the SACCH) and then activates the channel correctly and correctly calculates the time to transmit. To test that the MS correctly reports the time difference between the cells.

26.6.5.6.3 Method of test

Initial Conditions

System Simulator:

2 cells, A and B, with same LAI, default parameters.

The BCCH of cell A is sent k bit periods before the BCCH of cell B. k is arbitrarily selected.

The MS is being commanded to use a timing advance of y bit periods on cell A, where y is arbitrarily selected from the set {11, 12, … ,62}.

Mobile Station:

The MS is in the active state (U10) of a call (on cell A) using a full rate TCH in non-hopping mode.

Specific PICS statements

PIXIT statements

– .

Foreseen Final State of the MS

The active state (U10) of a mobile call (on cell B) using a full rate TCH in non-hopping mode.

Test Procedure

The MS is in the active state (U10) of a call on cell A. The SS sends a HANDOVER COMMAND for a pseudo‑synchronized handover with the Real Time Difference IE included. The Time Difference value is set to (2k+10) modulo 256. The MS shall send 4 access bursts, , in 4 successive slots of the new DCCH to cell B with a Timing Advance of zero (Note: Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH). Then the MS shall establish a signalling link using a Timing Advance of (y‑10) bit periods and send a HANDOVER COMPLETE message. The MS shall be ready to transmit the HANDOVER COMPLETE message before 650 ms after the end of the HANDOVER COMMAND message, but not before a UA frame has been sent by the SS.

The term "ready to transmit" is defined in 3GPP TS 04.13.

Maximum Duration of Test

5 s.

Expected Sequence

Step

Direction

Message

Comments

1

SS -> MS

HANDOVER COMMAND

See specific message contents below.

2

MS -> SS

HANDOVER ACCESS

Handover Reference as included in the

3

MS -> SS

HANDOVER ACCESS

HANDOVER COMMAND.

4

MS -> SS

HANDOVER ACCESS

5

MS -> SS

HANDOVER ACCESS

Before completion of the 4 access bursts on the new DCCH, additional access bursts may also be sent on the SACCH.

6

MS -> SS

SABM

Sent without information field.

7

SS -> MS

UA

8

MS -> SS

HANDOVER COMPLETE

This message shall be ready to be transmitted before 650 ms after the completion of step 1. Shall include the Mobile Time Difference IE with value (2k+y) mod 2,097,152 half bit periods. A tolerance of ±2 half bit periods is allowed.

9

SS

The SS checks that the timing advance reported in the layer 1 header of the SACCH message that is sent in the first SACCH multiframe following the SABM is (y‑10) bit periods. A tolerance of ± 2 bit periods is allowed.

Specific Message Contents

HANDOVER COMMAND

As default message contents, except:

Synchronization Indication

pseudo-synchronized; ROT=1; NCI=0.

Time Difference

(2k+10) mod 256.

26.6.5.7 Handover / successful / active call / non-synchronized / reporting of observed time difference requested

If an MS does not report the observed time difference between cells correctly then pseudo synchronized handovers might not be possible for any MS.

26.6.5.7.1 Conformance requirements

1 The MS shall correctly apply the handover procedure from a TCH/F without frequency hopping to a TCH/F without frequency hopping in the non-synchronized case while a call is active.

2 When requested to do so in the HANDOVER COMMAND message, the MS shall return the Mobile Time Difference IE in the HANDOVER COMPLETE message indicating the sum of the observed time difference between the cells and the timing advance used on the old cell.

References

Conformance requirement 1: 3GPP TS 04.08 / 3GPP TS 44.018, subclause 3.4.4.

Conformance requirement 2: 3GPP TS 04.08 / 3GPP TS 44.018, subclause 10.5.2.39.

26.6.5.7.2 Test purpose

To verify that when the MS is ordered to make a non-synchronized handover to another cell and is ordered to report on the time difference between the cells, that it does so correctly.

26.6.5.7.3 Method of test

Initial Conditions

System Simulator:

2 cells, A and B with default parameters except the LAI of cell B has MNC = 02 (PCS 1 900: MNC = 021) decimal,
MCC = 315 decimal, and LAC = 5344 H.

The BCCH of cell A is sent k bit periods before the BCCH of cell B.

The MS is commanded to use a timing advance of y bit periods on cell A.

Mobile Station:

The MS is in the active state (U10) of a call (on cell A) using a full rate TCH in non-hopping mode.

Specific PICS statements

PIXIT statements

Foreseen Final State of the MS

The active state (U10) of a mobile call (on cell B) using a full rate TCH in non-hopping mode.

Test Procedure

The MS is in the active state (U10) of a call on cell A. The SS sends a HANDOVER COMMAND on the main DCCH. The HANDOVER COMMAND includes a Synchronization Indication IE that instructs the MS to supply the observed time difference between the cells. The MS shall begin to send access bursts on the new DCCH (and otionally the SACCH) to cell B and the SS sends one PHYSICAL INFORMATION message. The MS shall activate the channel in sending and receiving mode and establish a signalling link using the correct timing advance. The MS shall transmit a HANDOVER COMPLETE message containing the Mobile Time Difference IE with a correct value.

Maximum Duration of Test

5 s.

Expected Sequence

Step

Direction

Message

Comments

1

SS -> MS

HANDOVER COMMAND

See specific message contents below.

2

MS -> SS

HANDOVER ACCESS

Repeated on every burst of the uplink main DCCH until reception of PHYSICAL INFORMATION. Handover Reference as included in the HANDOVER COMMAND.

3

SS -> MS

PHYSICAL INFORMATION

4

MS -> SS

SABM

Sent without information field.

5

SS -> MS

UA

6

MS -> SS

HANDOVER COMPLETE

Shall include the Mobile Time Difference IE with value (2k+y) mod 2,097,152 half bit periods. A tolerance of ±2 half bit periods is allowed.

Specific Message Contents

HANDOVER COMMAND

as default message contents, except:

Synchronization Indication

"not synchronized"; ROT=1; NCI=0.

26.6.5.8 Handover / layer 3 failure

26.6.5.8.1 Conformance requirements

The MS shall return to the old channel in the case of an handover failure caused by the non reception of the PHYSICAL INFORMATION message. On the old channel the MS shall use the Power Level that it was previously using on that channel.

References

3GPP TS 04.08 / 3GPP TS 44.018 subclause 3.4.4.

26.6.5.8.2 Test purpose

To verify the function of timer T3124 and the contents in the message HANDOVER FAILURE and in the layer 1 header on the SACCH.

26.6.5.8.3 Method of test

Initial Conditions

System Simulator:

2 cells with same LAI, default parameters.

Mobile Station:

The MS is in the active state (U10) of a call (on cell A). Used power level is the maximum supported by the MS.

Specific PICS statements

PIXIT statements

Foreseen Final State of the MS

The active state (U10) of a mobile call (on cell A). Used power level is the maximum supported by the MS.

Test Procedure

The MS is in the active state (U10) of a call on cell A. The SS sends a HANDOVER COMMAND with Power Command set to 8 on the main DCCH. The MS shall begin to send access bursts on the new DCCH (and optionally the SACCH) to cell B. The SS activates the SACCH, but does not send PHYSICAL INFORMATION (thus causing a time-out of T3124). The MS shall re-establish the old link on cell A and send a HANDOVER FAILURE within 3 s from the transmission of HANDOVER COMMAND, using the old Power Control Level.

Maximum Duration of Test

5 minutes, including 1 minute for any necessary operator actions.

Expected Sequence

Step

Direction

Message

Comments

0

SS

The SS records the Power Control Level in the layer 1 header of the last SACCH message sent by the MS before step 1.

1

SS -> MS

HANDOVER COMMAND

Channel description: non-hopping, full rate Power Command: 8. Synchronization Indication: non synchronized.

2

MS -> SS

HANDOVER ACCESS

Several messages are sent, all with correct Handover References.

3

MS -> SS

HANDOVER FAILURE

Sent on old channel, RR cause value = "Abnormal release, unspecified", "Abnormal release, channel unacceptable", "Abnormal release, timer expired", "Abnormal release, no activity on the radio path" or "Protocol error unspecified". Shall be sent within 3 s from the transmission of HANDOVER COMMAND.

4

SS

The SS checks that the Power Control Level reported in the layer 1 header of the SACCH message that is sent in the first SACCH multiframe following the SABM is the same as in step 0.

Specific Message Contents

None.

26.6.5.9 Handover / layer 1 failure

26.6.5.9.1 Conformance requirements

The MS shall return to the old channel in the case of an handover failure caused by a layer 1 failure on the target cell. On the old channel the MS shall use the Power Level that it was previously using on that channel.

References

3GPP TS 04.08 / 3GPP TS 44.018 subclause 3.4.4.

26.6.5.9.2 Test purpose

To verify the function of timer T3124 and the contents in the message HANDOVER FAILURE and in the layer 1 header on the SACCH.

26.6.5.9.3 Method of test

Initial Conditions

System Simulator:

2 cells with same LAI, default parameters.

Mobile Station:

The MS is in the active state (U10) of a call (on cell A). Used power level is the maximum supported by the MS.

Specific PICS statements

PIXIT statements

Foreseen Final State of the MS

The active state (U10) of a mobile call (on cell A). Used power level is the maximum supported by the MS.

Test Procedure

The MS is in the active state (U10) of a call on cell A. The SS sends a HANDOVER COMMAND on the main DCCH. The MS shall begin to send access bursts at the commanded Power Control Level on the new DCCH (and optionally the SACCH) to cell B ( the commanded Power Control Level must be different than that already used for Cell A). With the exception of normal BCCH signalling, the SS does not transmit anything on cell B (thus causing a time-out of T3124). The MS shall re-establish the old link on cell A and send a HANDOVER FAILURE within 3 s from the transmission of HANDOVER COMMAND, using the old Power Control Level.

Maximum Duration of Test

5 minutes, including 1 minute for any necessary operator actions.

Expected Sequence

Step

Direction

Message

Comments

0

SS

The SS records the Power Control Level in the layer 1 header of the last SACCH message sent by the MS before step 1.

1

SS -> MS

HANDOVER COMMAND

Channel description: non-hopping, full rate. Synchronization Indication: non synchronized.

Power Level: different than that recorded in step 0.

2

MS -> SS

HANDOVER ACCESS

Several messages are sent, all with correct Handover References.

3

MS -> SS

HANDOVER FAILURE

Sent on old channel, RR cause value = "Abnormal release, unspecified", "Abnormal release, channel unacceptable", "Abnormal release, timer expired", "Abnormal release, no activity on the radio path" or "Protocol error unspecified". Shall be sent within 3 s from the transmission of HANDOVER COMMAND.

4

SS

The SS checks that the Power Control Level reported in the layer 1 header of the SACCH message that is sent in the first SACCH multiframe following the SABM is the same as in step 0.

Specific Message Contents

None.