20.22 GPRS Cell Selection and Reselection

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

The absolute accuracy of the MS signal level measurements is assumed to be ±6 dB. A difference of at least 8 dB is allowed for cases of discrimination between C1, C31, C32 values and 0.

The relative accuracy of the MS signal level measurements is assumed to be ±3 dB for the signal levels used in the tests of this subclause. A difference of at least 5 dB is allowed for cases of discrimination between C1 and C31 and C32 values on different carriers.

NOTE 1: The accuracy of MS signal level measurements is specified in 3GPP TS 05.08/45.008. For all of the tests in this subclause, the signal levels used are greater than 1 dB above reference sensitivity level.

NOTE 2: The tolerance on timers specified in 3GPP TS 05.08/45.008 is ±10 % except for PENALTY_TIME where it is ±2 s. In the tests of this subclause, the test requirements include these tolerances. Consequently, the times stated in the test requirement sometimes differ from the corresponding timer in the conformance requirement.

Where pulsed signals are specified, the SS tolerance on pulse width is ±2 % and the SS tolerance on power level ±1 dB.

The MS shall perform cell re-selection according to the idle mode procedures defined in clause 6 of 3GPP TS 05.08/45.008 and therefore tests defined in clause 20 of TS 51.010 apply.

The support of GPRS shall be indicated in SYSTEM INFORMATION TYPE 3 message. In addition, the support of GPRS shall be indicated in either SYSTEM INFORMATION TYPE 4 or SYSTEM INFORMATION TYPE 7 and 8 messages. If GPRS is supported, SYSTEM INFORMATION TYPE 13 message shall be sent. SI 13 message shall not be sent if GPRS is not supported (3GPP TS 04.08 / 3GPP TS 44.018, subclause 3.2.2.1). Additional requirements for the broadcast of system information in a cell supporting GPRS are specified in 3GPP TS 04.60/44.060. The GPRS support is indicated by the presence of the field GPRS Indicator in the SI Rest Octets (3GPP TS 04.08 / 3GPP TS 44.018, subclauses 10.5.2.34; 10.5.2.35, 10.5.2.36 and 10.5.2.37).

The following definitions are applicable to tests 20.22.1 to 20.22.33

– Carrier X supports GPRS : the SS includes the field GPRS Indicator in SI 3 Rest Octets and in SI 4 Rest Octets.

– The SS enables GPRS on carrier X : the SS starts including the field GPRS Indicator in SI 3 Rest Octets and in SI 4 Rest Octets.

– The SS disables GPRS on carrier X : the SS stops including the field GPRS Indicator in SI 3 Rest Octets and in SI 4 Rest Octets.

– Carrier X supports EC-GSM-IoT : the SS indicates the support of EC-GSM-IoT with the use of EC-SCH.

Unless otherwise stated in the method of test, in all of the tests of this subclause:

– The SIM is in the idle updated state in the default registration area with a TMSI and PTMSI assigned at the beginning of each test.

– By default idle paging is transmitted on the PCH according to 3GPP TS 04.08 / 3GPP TS 44.018, subclause 3.2.2.2.

– Where MS paging is specified within a test, TMSI is to be used on CCCH

– The Scheduling of System Information should be such that a complete set of consistent SI messages, including SI13 were applicable, can be decoded within 8 multiframes (8  51 frames).

– The Scheduling of EC System Information should be such that a complete set of consistent EC SI messages, can be decoded within 24 51-multiframes (3 x 8  51 frames).

– The MS is configured to automatically attach to GPRS at switch on by using the PICS/PIXIT Statement "Automatic GPRS attach procedure at switch on or power on Yes/No" as in GPRS Attach procedure tests (see subclause 44.2.1). For MS that does attach at power on, the SS shall accept access request with cause ‘one phase access’ in determining test verdict where applicable.

– The network simulation settings as specified in section 40 shall be applied unless otherwise stated in section 20.22.

Table 20.22.1: Default values of the system information or Packet Measurement Order fields

Parameter

3GPP TS 04.60 / 44.060 or 44.018 reference

Abbr.

Normal Setting

PRIORITY_CLASS

11.2.20

PC

1

HCS_THR

11.2.20

HT

-110dBm

GPRS_RESELECT_OFFSET

11.2.20

GRO

0 dB

NC_REPORTING_PERIOD_I

11.2.23

RP

61.44s

NETWORK_CONTROL_ORDER

11.2.23

NCO

NC0

CELL_RESELECT_HYST

11.2.20

CRH

0 dB

GPRS_TEMPORARY_OFFSET

11.2.20

GTO

0 db

GPRS_PENALTY_TIME

11.2.20

GPT

10s

GPRS_MS_TXPWR_MAX_CCH

11.2.20

GMTMC

Max. output power of MS

GPRS_RXLEV_ACCESS_MIN

11.2.20

GRAM

‑90 dBm

BA(GPRS) ARFCN

11.2.20

BA

All 0 except values in Table 20.22.1a (broadcast in in SYSTEM INFORMATION TYPE 2 and 2bis.)

PEO_DSC

11.7.2.37c

Not included if not stated otherwise

C1_DELTA_MIN

11.7.2.37c

Not included if not stated otherwise

C1_DELTA_MAX

11.7.2.37c

Not included if not stated otherwise

RCC

10.5.2.16

Not included if not stated otherwise

Table 20.22.1a: ARFCNs for Single Band Tests

Band

ARFCNs

GSM 450

259, 263, 269, 275, 279, 283, 287, 292

GSM 480

306, 310, 316, 322, 326, 330, 334, 339

GSM 710

441, 446, 452, 455, 461, 462, 466, 470, 477, 485, 493, 511

GSM 750

441, 446, 452, 455, 461, 462, 466, 470, 477, 485, 493, 511

T-GSM 810

441, 446, 452, 455, 461, 462, 466, 470, 477, 485, 493, 511

GSM 850

130, 136, 145, 152, 168, 170, 176, 177, 181, 185, 189, 193, 197, 207,219, 251

GSM 900

both P-GSM and E-GSM ARFCNs are broadcast:

GSM: 3, 9, 18, 25, 41, 43, 49, 50, 54, 58, 62, 66, 70, 80, 92, 124

E-GSM: 985, 989, 995, 1010, 1014

DCS 1800

512, 543, 568, 589, 602, 641, 662, 683, 696, 711, 732, 754, 794, 851, 870, 871, 872, 884

PCS1900

512, 543, 568, 589, 602, 629, 641, 653, 662, 683, 696, 711, 727, 732, 754, 777, 794, 809

Table 20.22.2: Default values of the EC-SI

Parameter

44.018 reference

Normal Setting

EC_RXLEV_ACCESS_MIN

9.1.43q

-110dBm

MS_TXPWR_MAX_CCH

9.1.43q

Max. output power of MS

C1_DELTA_MIN

9.1.43q

Default value = 3dB

C1_DELTA_MAX

9.1.43q

Default value = 9dB

BT_Threshold_DL

9.1.43q

-105 dBm

BT_Threshold_UL

9.1.43q

-105 dBm

EC_CELL_RESELECT_OFFSET

9.1.43q

0

NOTE: Parameters defined also for GPRS should have the same value as for GPRS values defined in 20.22 or 40 sections if not specified otherwise

20.22.1 Void

20.22.2 Void

20.22.3 Void

20.22.4 Void

20.22.5 Void

20.22.6 Void

20.22.7 Void

20.22.8 Cell selection when the best cell does not support GPRS

20.22.8.1 Definition

Cell selection is a process in which an MS, whenever a new PLMN is selected, attempts to find a suitable cell of that PLMN to camp on. Two methods of searching for a suitable cell are possible, normal cell selection and stored list cell selection. The process ensures that the MS is camped on a cell from which it can reliably decode downlink data and with which it has a high probability of communications on the uplink. The support of GPRS is not a condition to select a cell. Once the MS is camped on a cell, access to the network is allowed.

20.22.8.2 Conformance requirement

1. … the MS shall be able to select the correct (fourth strongest) cell and be able to respond to paging on that cell within 30 seconds of switch on, when the three strongest cells are not suitable. This assumes a valid SIM with PIN disabled and ideal radio conditions

3GPP TS 05.08 / 3GPP TS 45.008, subclause 6.1.

2. There are various requirements that a cell must satisfy before an MS can perform normal camping on it:

2.1 (i) It should be a cell of the selected PLMN;

2.2 (ii) It should not be "barred" (see subclause 3.5.1);

2.3 (iii) It should not be in an LA which is in the list of "forbidden LAs for roaming";

2.4 (iv) The radio path loss between MS and BTS must be below a threshold set by the PLMN operator. This is estimated as shown in subclause 3.6. 3GPP TS 03.22, subclause 3.2.1.

NOTE: Criteria 2.3 (iii) is not applicable for Cell Selection.

3. Initially the MS looks for a cell which satisfies these 4 constraints ("suitable cell") by checking cells in descending order of received signal strength. If a suitable cell is found, the MS camps on it, 3GPP TS 03.22, subclause 3.2.1.

4. The MS shall be able to calculate correctly the path loss criterion parameter C1, used for cell selection and reselection, 3GPP TS 05.08, subclause 6.4.

20.22.8.3 Test purpose

1. To verify that the MS meets conformance requirement 1. even when one of the other cells supports GPRS.

2. To verify that:

2.1 The MS does not select a cell of a PLMN, which is not the selected PLMN.

2.2 The MS does not select a cell which is "barred".

2.4 The MS does not select a cell with C1 < 0.

3. To verify that the MS selects suitable cells in descending order of received signal strength.

4. To verify that the MS does not select a cell with C1 < 0.

20.22.8.4 Method of test

20.22.8.4.1 Initial conditions

Parameters changed from the default values in table 20.22.1.

Parameter

Cell A

Cell B

Cell C

Cell D

Cell E

Carrier 1

Carrier 2

Carrier 3

Carrier 4

Carrier 5

Channel Type Carried

BCCH

BCCH

BCCH

BCCH

BCCH

RF Signal Level (dBm)

-75

-80

-70

-60

-70

GPRS Support

N

Y

N

N

N

CBA

0

0

0

1

0

RXLEV_ACCESS_MIN (dBm)

-90

-90

-90

-90

-60

GPRS_RXLEV_ACCESS_MIN

MNC

Default

Default

See Table 20.1c

Default

Default

MCC

Default

Default

002

Default

Default

C1

15

10

20

30

-10

NOTE 1: For an E-GSM MS carrier 1 and carrier 5 ARFCNs are chosen in the E-GSM band, carrier 3 and carrier 4 ARFCNs in the P-GSM band.

NOTE 2: Carrier 2 supports GPRS without PBCCH channel in the cell.

NOTE 3: Carriers 1, 3, 4 and 5 do not support GPRS.

20.22.8.4.2 Procedure

a) The SS activates and pages on the MS on all carriers. All Carriers are monitored for RA requests from the MS.

b) The MS is switched on.

20.22.8.5 Test requirements

1) After step b), the first response from the MS shall be on carrier 1 within 33 s. There shall be no response from the MS on any other carrier.

20.22.9 Cell reselection when the best cell does not support GPRS

20.22.9.1 Definition

While camped on a cell of the selected PLMN the MS may need to select a different cell in order to fulfil the normal service state. This ensures that the MS is camped on a cell from which it can reliably decode downlink data and with which it has a high probability of communications on the uplink. The target cell should be reselected despite it does not support GPRS.

20.22.9.2 Conformance requirement

1. While camped on a cell of the selected PLMN ("camped normally"), the MS may need to select a different cell ("normal cell reselection" state). The following events trigger a cell reselection:

1.1 (iii) The cell camped on (current serving cell) has become barred.

1.2 (iv) There is a better cell (in terms of the path loss criterion C2) in the same LA, or a much better cell in another LA of the selected PLMN (using the CRH parameter).

The MS will then reselect a new cell in order to fulfil the process goal.; 3GPP TS 03.22, subclause 4.5.

NOTE 1: Criterion (i) is tested in subclause 20.8 (Cell reselection when C1(serving cell) < 0 for 5 s).

NOTE 2: Criterion (ii) is tested subclause 20.16 (Downlink signalling failure).

NOTE 3: Criterion (v) is tested in subclause 20.6 (Cell reselection timings).

2. There are various requirements that a cell must satisfy before an MS can perform normal camping on it:

2.1 (ii) It should not be "barred".

2.2 (iv) The radio path loss between MS and BTS must be below a threshold set by the PLMN operator. 3GPP TS 03.22, subclause 3.2.1.

NOTE 4: Criterion (i) is not relevant for cell reselection and for cell selection it is tested in subclause 20.1.

NOTE 5: Criterion (iv) refers to the C1 parameter.

3. The MS shall be able to calculate correctly the path loss criterion parameter C2 used for cell reselection; 3GPP TS 05.08, subclause 6.4.

4. At least every 5 s the MS shall calculate the value of C1 and C2 for the serving cell and recalculate C1 and C2 values for non serving cells (if necessary). The MS shall then check whether:

i) The path loss criterion (C1) for current serving cell falls below zero for a period of 5 s. This indicates that the path loss to the cell has become too high.

ii) The calculated value of C2 for a non‑serving suitable cell exceeds the value of C2 for the serving cell for a period of 5 s, except in the case of the new cell being in a different location area or, for a GPRS MS, in a different routing area or always for a GPRS MS in ready state in which case the C2 value for the new cell shall exceed the C2 value of the serving cell by at least CELL_RESELECT_HYSTERESIS dB as defined by the BCCH data from the current serving cell, for a period of 5 seconds. This indicates that it is a better cell. 3GPP TS 05.08, subclause 6.6.2.

5. The MS shall attempt to decode the full BCCH data of the serving cell at least every 30 s; 3GPP TS 05.08, subclause 6.6.1.

20.22.9.3 Test purpose

20.22.9.3.1 Test purpose for procedure 1

1. To verify that:

1.1 The MS meets conformance requirement 1.1.

1.2 The MS meets conformance requirement 1.2.

2. To verify that:

2.1 The MS does not reselect a cell which is barred.

    1. The MS does not reselect a cell which has a C1 < 0.
    2. The MS does reselect a cell even if does not support GPRS.
    3. The MS keeps camping on the serving cell despite it does not support GPRS and there is a non‑serving suitable cell with a lower C2 that supports GPRS.
    4. The MS does not attempt to attach to GPRS when camping on a cell that does not support GPRS despite there is a non‑serving suitable cell with a lower C2 that supports GPRS.

3. To verify that the MS takes into account the CELL_RESELECT_HYSTERESIS parameter when reselecting a cell in a different location area or if MS in Ready State, whether this cell supports GPRS or not.

Method of test for procedure 1

Initial Condition

Parameters changed from the default values in table 20.22.1.

Parameter

Carrier 1

Carrier 2

Carrier 3

Carrier 4

Channel Type Carried

BCCH

BCCH

BCCH

BCCH

RF Signal Level (dBV emf() / dBm)

43 / -70

33 / -80

38 / -75

38 / -75

GPRS Support

Y

N

N

N

RXLEV_ACCESS_MIN (dBm)

-85

-90

-85

-67

CRH

10 dB

Default

Default

Default

LAC

Default

Default

Default

Default

CBA

Default

Default

1

Default

CBQ

Default

Default

0

Default

C1

15

10

10

‑8

C2

15

10

10

‑8

NOTE 1: Carrier 1 support GPRS without PBCCH channel in the cell.

NOTE 2: Carriers 2, 3 and 4 do not support GPRS.

The BA(BCCH) list only contains the ARFCNs of the carriers used during the test.

Procedure

a) The SS activates carriers 1, 2, 3 and 4 with paging enabled on Carriers 2, 3 and 4.

b) The MS is switched on.

c) The MS should select and camp onto carrier 1 and complete the GPRS Attach procedure (Ready Timer deactivated).

d) The SS disables GPRS on carrier 1 and enables GPRS on carrier 2.

e) The SS enables GPRS on carrier 1 and disables GPRS on carrier 2.

f) The level of carrier 2 is increased to 43 dBVemf (C2 becomes 20 dB), and the SS monitors carrier 2 for RA requests from the MS.

  1. The level of carrier 2 is increased to 53 dBVemf (C2 becomes 30 dB), and the SS monitors carrier 2 for RA requests from the MS.

Test requirements

1) After step c), there shall be no response from the MS on carriers 2, 3, or 4 within 50 s.

NOTE 1: 33 s for the MS to read the BCCH of carrier 2 (30 s + 10 %), 15 s for the MS to reselect another cell, since the MS already has a running average on carrier 1, allow 50 s.

2) After step d), there shall be no response from the MS on carriers 2, 3, or 4 within 345 s.

NOTE 2: 330 s for the MS to read the BCCH of carrier 2 (300 s + 10 %), 15 s for the MS to reselect another cell, since the MS already has a running average on carrier 1.

3) After step e), there shall be no response from the MS on carriers 2, 3, or 4 within 345 s.

4) After step f), there shall be no response from the MS on carriers 2, 3, or 4 within 50 s.

5) In step g), the MS shall respond on carrier 2 within 20 s of increasing the level of carrier 2.

NOTE 3: 5 s to perform running average, 10 s to detect C2 differences, 2,4 s to read BCCH of carrier 2, 1 s to perform RA. Total 18,4 s, allow 20 s.

20.22.9.3.2 Test purpose for procedure 2

2.1 To verify that the MS does not camp on a barred cell.

4. To verify that the MS decodes the CELL_BAR_ACCESS parameter from the BCCH every 30 s.

Method of test for procedure 2

Initial Condition

Parameters changed from the default values in table 20.22.1.

Parameter

Carrier 1

Carrier 2

Carrier 3

Carrier 4

Channel Type Carried

BCCH

BCCH

BCCH

BCCH

RF Signal Level (dBV emf() / dBm)

38 / -75

43 / -70

43 / -70

38 / -75

GPRS Support

N

Y

Y

N

RXLEV_ACCESS_MIN (dBm)

-85

-90

-90

-85

LAC

Default

Default

different from other carriers

Default

CBA

Default

Default

1

1

CBQ

Default

Default

Default

0

C1

10

20

20

10

C2

10

20

20

10

NOTE 1: Carrier 2 and 3 support GPRS without PBCCH channel in the cell.

NOTE 2: Carriers 1 and 4 do not support GPRS.

The BA(BCCH) list only contains the ARFCNs of the carriers used during the test.

Procedure

a) The SS activates all carriers with paging enabled on Carriers 1, 3 and 4. The MS is switched on. The MS should select and camp onto carrier 2 and complete the GPRS Attach procedure (Ready Timer deactivated).

b) After 33 s, the SS sets CBA = 1 on carrier 2.

Test requirements

1) In step b), the MS shall access Carrier 1 within 50 s of setting CBA=1 on carrier 2.

20.22.10 Void

20.22.11 Void

20.22.12 Cell Selection on "LA Not Allowed"

20.22.12.1 Definition

20.22.12.2 Conformance requirement

If the MS has received the cause "LA Not Allowed" it shall ignore this fact when selecting a cell to camp on (3GPP TS 03.22, subclause 3.2.1).

20.22.12.3 Test purpose

To verify that the MS does not reject a cell because the cell is a part of the LA for which it has received the cause "LA Not Allowed".

NOTE: During GPRS Attach, the MS receives an ATTACH REJECT message with cause ‘LA not allowed". The MS shall then camp on any acceptable cell and shall be able to make emergency calls.

20.22.12.4 Method of test

Initial conditions

Parameter

Cell 1

Cell 2

Channel Type carried

BCCH

BCCH

RF Signal Level (dBm)

-60

-75

Serving Cell Parameters

RXLEV_ACCESS_MI N (dBm)

-90

-90

CELL_BAR_ACCESS

0

1

LAC

Default

Default

C1

30

15

NOTE: Serving Cell Parameters are coded and transmitted on the specified Channel Type

20.22.12.4.2 Procedure

a) The SS activates all the Carriers.

b) MS is Switched on.

c) The SS sends an Attach Reject Message on Cell 1 with cause as "LA not allowed".

d) The MS is manually commanded to set up an emergency call.

20.22.12.5 Test Requirements

1) After Step b) the response shall be on Cell 1.

2) In step d), the MS shall access on Cell 1 with a channel request message, within 15 s of being commanded to set up the emergency call.

NOTE: Cell 2 is barred and hence it is not suitable for Camping.

20.22.13 Void

20.22.14 Void

20.22.15 Cell Reselection/ ready state / no reselection

20.22.15.1 Definition

20.22.15.2 Conformance requirement

At least every 5 s, the MS shall calculate the value of C1 and C2 for the serv­ing cell and recalculate C1 and C2 values for non-serving cells (if necessary). 3GPP TS 05.08 subclause 6.6.2.

The MS shall then check whether:

i) the path loss criterion (C1) for the current serving cell falls below zero for a period of 5 s. This indicates that the path loss to the cell has become too high.

ii) The calculated value of C2 for a non-serving suitable cell exceeds the value of C2 for the serving cell for a period of 5 s except:

a) in the case of a new cell being in a different Location Area or, for a GPRS MS, in a different routing area or always for a GPRS MS in ready state in which case the C2 value for the new cell shall exceed the C2 value of the serving cell by at least CELL_RESELECT_HYSERISIS dB as defined by the BCCH data from the current serving cell, for a period of 5 s.

20.22.15.3 Test purpose

To verify that the MS does not reselect because of a C2 criteria when GMM is in ready state (MS GPRS attached) and when the C2 value for adjacent cell exceeds the C2 value of the serving cell by at least CELL_RESELECT_HYSTERESIS dB for a period of less than 5 s.

NOTE: The serving cell C2 decreases before mobile is out of ready state with the following conditions.

a) C2 (Serving) + CELL_RESELECT_HYSTERESIS > C2 (Adjacent).

b) C2 (Serving) + CELL_RESELECT_HYSTERESIS < C2(Adjacent) for < 5 s.

20.22.15.4 Method of Test

Initial Conditions

Parameters changed from the default values in table 20.22.1.

Parameter

Cell 1

Cell 2

Carrier1

Carrier2

Channel Type carried

BCCH

BCCH

RF Signal Level (dBm)

-55 to –75

-60

RXLEV_ACCESS_MIN (dBm)

-90

-90

CRH

10

Default

C2

35 to 15

30

NOTE 1: MS must be configured to Initiate GPRS Attach on Power On.

NOTE 2: Cell reselection criteria from the above parameters:

[C2(s)+CRH = 25] < [C2(n) = 30]

for a period of less than 5 s, where ‘s’ denotes the serving cell and ‘n’ denotes the non-serving cell. After 5 s, C2 of serving cell goes back to the original higher value.

[C2(s)+CRH = 45 ] > [C2(n) = 30]

NOTE 3: Each Cell Supports GPRS without PBCCH

20.22.15.4.2 Procedure

a) The SS activates both carriers. The MS is paged continuously on Carrier 2.

b) MS is switched on.

c) The SS completes the GPRS Attach procedure (Ready Timer deactivated).

d) The C2 value for carrier 1 is decreased by 20 dB for < 5 s.

20.22.15.5 Test requirements

1) The MS shall camp on carrier 1 within 33 s after step b), and initiate the GPRS Attach procedure.

2) The MS is in GMM Ready State after step c).

3) After step d) there shall be no access on Carrier 2 for 50s.

20.22.16 Cell Reselection/ ready state/ Reselection and Cell update procedure

20.22.16.1 Definition

20.22.16.2 Conformance requirement

The MS is required to perform the following measurements to ensure that the path loss criterion to the serving cell is acceptable.(3GPP TS 05.08 subclause 6.6.2).

At least every 5s the MS shall calculate the value of C1 and C2 for the serving cell and re-calculate C1 and C2 values for non serving cells (if necessary). The MS shall then check whether:

1) The path loss criterion (C1) for current serving cell falls below zero for a period of 5 s. This indicates that the path loss to the cell has become too high.

2) The calculated value of C2 for non -serving suitable cell exceeds the value of C2 for the serving cell for a period of 5 s, except:

a) in the case of new cell being in a different location area, for a GPRS MS, in a different routing area or always for a GPRS Ms in ready state in which case the C2 value for the new cell shall exceed the C2 value of the serving cell by at least CELL_RESELECT_HYSTERSIS dB as defined by the BCCH data from the current serving cell, for a period of 5 s; or

b) in case of a cell reselection occurring within the previous 15 s in which case the C2 value for the new cell shall exceed the C2 value of the serving cell by at least 5dB for a period of 5 s.

This indicates that it is a better cell.

A cell update takes place when the MS enters a new cell inside the current RA and the MS is in READY state. If the RA has changed, a routeing area update is executed instead of a cell update (3GPP TS 03.60 subclause 6.9.11).

20.22.16.3 Test purpose

1. To verify that the MS reselects an adjacent cell because of a C2 criteria when GMM is in ready state (MS GPRS attached) and when the C2 value for adjacent cell exceeds the C2 value of the serving cell by at least CELL_RESELECT_HYSTERESIS dB for a period of 5 s.

2. To verify that the MS performs the cell update procedure (when the cell is in the same Routing Area) and

C2(Serving) + CELL_RESELECT_HYSTERESIS < C2(Adjacent) for at least 5 s.

20.22.16.4 Method of Test

Initial Conditions

Parameters changed from the default values in table 20.22.1.

Parameter

Cell 1

Cell 2

Carrier1

Carrier2

Channel Type carried

BCCH

BCCH

RF Signal Level (dBm)

-60 to –75

-65

RXLEV_ACCESS_MIN (dBm)

-90

-90

CRH (dB)

6

Default

C2

30 to 15

25

NOTE 1: Cell reselection criteria from the above parameters:

[C2(s) = 15 ] < [C2(n) = 25] for a period > 5 s.

[C2(s)+CRH = 21] < [C2(n) = 25] for a period > 5 s.

NOTE 2: Each Cell Supports GPRS without PBCCH

Procedure

a) The SS activates both carriers.

b) MS is switched on.

c) The SS completes the GPRS Attach procedure (Ready Timer deactivated). The SS waits 20s.

d) The C2 value for carrier 1 is decreased by 15 dB.

20.22.16.5 Test requirements

1) The MS shall camp on carrier 1 within 33 s after step b) and initiate a GPRS Attach procedure.

2) The MS is in GMM ready state after step c).

3) After step d) the MS shall initiate the Cell Update procedure on Carrier 2 within 22s.

NOTE 1: Time allowed includes 5.9s to perform running average on Carrier 1 (based on BS_PA_MFRMS of 5), 5s to update C2, 5s to check the C2 value for adjacent cell exceeds the C2 value of the serving cell by at least CELL_RESELECT_HYSTERESIS, 2.4s to decode BCCH carrier, 1s for reselection and 10% timer tolerance.

20.22.17 C2 reselection in another RA – no cell reselection

20.22.17.1 Definition

20.22.17.2 Conformance requirement

The MS is required to perform the following measurements to ensure that the path loss criterion to the serving cell is acceptable.(3GPP TS 05.08 subclause 6.6.2)

At least every 5 s the MS shall calculate the value of C1 and C2 for the serving cell and re-calculate C1 and C2 values for non serving cells(if necessary).The MS shall then check whether:

1) The path loss criterion (C1) for current serving cell falls below zero for a period of 5 s. This indicates that the path loss to the cell has become too high.

2) The calculated value of C2 for non -serving suitable cell exceeds the value of C2 for the serving cell for a period of 5 s, except:

a) in the case of new cell being in a different location area, for a GPRS MS, in a different routing area or always for a GPRS Ms in ready state in which case the C2 value for the new cell shall exceed the C2 value of the serving cell by at least CELL_RESELECT_HYSTERSIS dB as defined by the BCCH data from the current serving cell, for a period of 5 s; or

b) in case of a cell reselection occurring within the previous 15 s in which case the C2 value for the new cell shall exceed the C2 value of the serving cell by at least 5dB for a period of 5 s.

This indicates that it is a better cell.

A cell update takes place when the MS enters a new cell inside the current RA and the MS is in READY state. If the RA has changed, a routeing area update is executed instead of a cell update (3GPP TS 03.60 subclause 6.9.11).

20.22.17.3 Test purpose

To verify that the MS does not reselecting an adjacent cell when the cell is in a routing area different from the serving cell’s one and when the C2 value for the adjacent cell does not exceed the C2 value of the serving cell for a period of 5 s by at least CRH dB.

20.22.17.4 Method of Test

Initial Conditions

Parameter

Cell 1

Cell 2

Cell 3

Cell 4

Carrier1

Carrier2

Carrier3

Carrier4

Channel Type carried

BCCH

BCCH

BCCH

BCCH

RF Signal (dBm)

-60 to -80

-65

-75

-75

CBA

0

0

0

0

RXLEV_ACCESS_MI N (dBm)

-100

-100

-100

-100

CRH (dB)

+10

Default

Default

Default

C1

40 to 20

35

25

25

C2

40 to 20

35

25

25

NOTE 1: Carrier 1 and carrier 3 are in same routing area, carrier 2 and carrier 4 are in different routing area from carriers 1 and 3.

NOTE 2: Each Cell Supports GPRS without PBCCH

20.22.17.4.2 Procedure

a) The SS activates all carriers. The MS is continuously paged on Carriers 2, 3 and 4.

b) MS is switched ON.

c) The SS shall complete the GPRS attach procedure (Ready timer deactivated). The SS waits 20s.

d) Decrease the RF level of Carrier 1 such that the following conditions are met for a period of less than 5 s.

– C2(adjacent) > C2(Serving);

– C2+CRH(serving cell) < C2(adjacent cell).

20.22.17.5 Test requirements

1) MS shall camp on Carrier 1 after step b) and initiate a GPRS attach procedure within 33s.

2) The MS is in GMM ready state after step c).

3) After step d) there shall be no access on Carriers 2, 3 or 4 for 50s.

20.22.18 C2 reselection in another Routing Area – Routing Area Update

20.22.18.1 Definition

20.22.18.2 Conformance requirement

The MS is required to perform the following measurements to ensure that the path loss criterion to the serving cell is acceptable.(3GPP TS 05.08 subclause 6.6.2)

At least every 5 s the MS shall calculate the value of C1 and C2 for the serving cell and re-calculate C1 and C2 values for non serving cells(if necessary).The MS shall then check whether:

1) The path loss criterion (C1) for current serving cell falls below zero for a period of 5 s. This indicates that the path loss to the cell has become too high.

2) The calculated value of C2 for non -serving suitable cell exceeds the value of C2 for the serving cell for a period of 5 s, except:

a) in the case of new cell being in a different location area, for a GPRS MS, in a different routing area or always for a GPRS Ms in ready state in which case the C2 value for the new cell shall exceed the C2 value of the serving cell by at least CELL_RESELECT_HYSTERSIS dB as defined by the BCCH data from the current serving cell, for a period of 5 s; or

b) in case of a cell reselection occurring within the previous 15 s in which case the C2 value for the new cell shall exceed the C2 value of the serving cell by at least 5 dB for a period of 5 s.

This indicates that it is a better cell.

A cell update takes place when the MS enters a new cell inside the current RA and the MS is in READY state. If the RA has changed, a routeing area update is executed instead of a cell update (3GPP TS 03.60 subclause 6.9.11).

20.22.18.3 Test purpose

1. To Verify that when the MS is in ready state, the MS reselects an adjacent cell when the cell is in a routing area different from the serving cell’s one and when the C2 value for the adjacent cell exceed the C2 value of the serving cell for a period of 5 s by at least CRH dB.

2. To verify that the MS performs the Normal Routing Area Update procedure.

20.22.18.4 Method of Test

Initial Conditions:

Cell 1

Cell 2

Cell 3

Cell4

Parameter

Carrier1

Carrier2

Carrier3

Carrier4

Channel Type carried

BCCH

BCCH

BCCH

BCCH

RF Signal (dBm)

-60 to –80

-65

-75

-75

CBA

0

0

0

0

RXLEV_ACCESS_MIN (dBm)

-100

-100

-100

-100

CRH (dB)

+10

Default

Default

Default

C1

40 to 20

35

25

25

C2

40 to 20

35

25

25

NOTE 1: Carrier 1 and carrier 3 are in same routing area.

NOTE 2: Carrier 2 and carrier 4 are in different routing area from carrier 1 and carrier 3.

NOTE 3: Each Cell Supports GPRS without PBCCH

20.22.18.4.2 Procedure

a) The SS activates all carriers.

b) MS is switched ON.

c) SS Completes the GPRS attach procedure (Ready timer deactivated).

d) The RF level of Carrier 1 is decreased to –80 dBm such that the following condition is met:

– C2(serving) +CRH< C2(adjacent cell).

20.22.18.5 Test requirements

1) MS shall camp on Carrier 1 after step b) and initiate a GPRS attach procedure within 33s.

2) The MS is in GMM ready state after step c). The SS waits 20s.

3) After step d) the MS shall reselect to carrier 2 within 22s. The MS shall initiate the Routing Area Update procedure.

NOTE 1: Time allowed includes 5.9s to perform running average on Carrier 1 (based on BS_PA_MFRMS of 5), 5s to update C2, 5s to check the C2 value for adjacent cell exceeds the C2 value of the serving cell by at least CELL_RESELECT_HYSTERESIS, 2.4s to decode BCCH carrier, 1s for reselection and 10% timer tolerance.

20.22.19 Borders between routing areas – reselection of a GPRS cell in a homogenous network

20.22.19.1 Definition

20.22.19.2 Conformance requirement

The MS is required to perform the following measurements (see 3GPP TS 03.22) to ensure that the path loss criterion to the serving cell is acceptable.

At least every 5s the MS shall calculate the value of C1 and C2 for the serving cell and re-calculate C1 and C2 values for non serving cells(if necessary).The MS shall then check whether:

1) The path loss criterion (C1) for current serving cell falls below zero for a period of 5 s. This indicates that the path loss to the cell has become too high.

2) The calculated value of C2 for non -serving suitable cell exceeds the value of C2 for the serving cell for a period of 5 s, except:

a) in the case of new cell being in a different location area, for a GPRS MS, in a different routing area or always for a GPRS Ms in ready state in which case the C2 value for the new cell shall exceed the C2 value of the serving cell by at least CELL_RESELECT_HYSTERSIS (CRH) dB as defined by the BCCH data from the current serving cell, for a period of 5 s; or

b) in case of a cell reselection occurring within the previous 15 s in which case the C2 value for the new cell shall exceed the C2 value of the serving cell by at least 5dB for a period of 5 s.

This indicates that it is a better cell.

Reference: 3GPP TS 05.08, section 6.6.2.

20.22.19.3 Test purpose

To Verify that the MS does not reselect a cell in a different routing area when another one is suitable in the same routing area even if C2 is lower.

20.22.19.4 Method of Test

Initial Conditions

Parameter

Cell 1

Cell 2

Cell 3

Cell 4

Carrier1

Carrier2

Carrier3

Carrier4

Channel Type carried

BCCH

BCCH

BCCH

BCCH

RF Signal (dBm)

-60 to –75

-65

-70

-80

CBA

0

0

0

0

RXLEV_ACCESS_MI N (dBm)

-100

-100

-100

-100

CRH

+14

Default

+14

Default

C1

40 to 25–

35

30

20

C2

40 to 25–

35

30

20

NOTE 1: Carrier 1 and carrier 3 are in same routing area.

NOTE 2: Carrier 2 and carrier 4 are in different routing area then carrier 1 and carrier 3.

NOTE 3: Each Cell Supports GPRS without PBCCH

NOTE 4: The Ready Timer length should be set to 0 so that the MS immediately enters the GMM Standby State on completion of the GPRS Attach (ref. 03.60, 6.2.1).

20.22.19.4.2 Procedure

a) The SS activates all carriers. The MS is paged continuously on Carriers 2, 3 and 4.

b) MS is switched ON.

c) The SS completes the GPRS attach procedure.

d) The RF level of Carrier 1 is decreased such that C1 is 25 for 5 s.

20.22.19.5 Test requirements

1) The MS shall camp on carrier 1 after step b) and initiate the GPRS attach procedure.

2) The MS is in GMM Standby State after Step c).

3) After step d) the MS shall reselect to carrier 3 as:

(C2(Carrier 1)+CRH = 39) > (C2(Carrier 2) = 35)

(C2(Carrier 1) = 25) < (C2(Carrier 3) = 30)

The MS should respond to Paging on Carrier 3 only within 30s.

NOTE: Time allowed includes 18.75s running average of neighbour cells (based on max BA list of 20 specified in 20.22 for an E-GSM MS), 5s to update C2, 2.4s to decode BCCH, 1s to reselect and 10% tolerance. Allow 30s.

20.22.20 Void

20.22.21 Void

20.22.22 Cell Reselection with cells in different Routing area

20.22.22.1 Definition

20.22.22.2 Conformance requirement

At least for every new sample or every second, whichever is the greatest, the MS shall update RLA_P and calculate the value of C1, C31 and C32 for the serving cell and the non-serving cells; 3GPP TS 05.08, subclause 10.1.2. The MS shall make a cell re-selection if:

a. The path loss criterion parameter (C1) for the serving cell falls below zero.

b. A non-serving suitable cell (see 3GPP TS 03.22) is evaluated to be better than the serving cell. The best cell is the cell with highest value of C32 among:

– Those cells that have the highest PRIORITY_CLASS among those that fulfill the criterion C31  0; or

– All cells, if no cells fulfill the criterion C31  0;

– If the parameter C32_QUAL is set, positive GRPS_RESELECT_OFFSET values shall be only be applied to the neighbor cell with the highest RLA_P value of those cells for which C32 is compared above.

PRIORITY_CLASS and C32_QUAL are broadcast on PBCCH of the serving cell.

When evaluating the best cell, the following hysteresis values shall be subtracted from the C32 value for the neighbor cells:

– in standby state, if the new cell is in the same routing area: 0.

– in ready state, if the new cell is in the same routing area:

– GPRS_CELL_RESELECT_HYSTERESIS.If the parameter C31_HYST is set;

– GPRS_CELL_RESELECT_HYSTERESIS shall also be subtracted from the C31 value for the neighbour cells.

– in standby or ready state, if the new cell is in a different routing area:

– RA_RESELECT_HYSTERESIS.

– in case of a cell re-selection occurred within the previous 15 s: 5 dB.

– GPRS_CELL_RESELECT_HYSTERESIS,C31_HYST and RA_RESELECT_HYSTERESIS are broadcast on PBCCH of the serving cell.

The cell re-selection procedures defined in subclauses 10.1.1 to 10.1.3 (of 3GPP TS 05.08) apply to the MS attached to GPRS if a PBCCH exists in the serving cell. These procedures shall also apply for cells for which GPRS cell re‑selection parameters are provided to the MS in a Packet Cell Change Order or Packet Measurement Order message. Otherwise the MS shall perform cell re-selection according to the idle mode procedures defined in clause 6 of 3GPP TS 05.08.

20.22.22.3 Test purpose

To verify that the MS reselects to the correct cell by calculating C32 correctly when one of the cells is in a different routing area. When the MS is in the Standby or ready state, on triggering of a reselection, when it considers a suitable cell which happens to be in a different Routing Area, the C32 value of the new cell must be reduced by RARH for comparison.

20.22.22.4 Method of test

Initial conditions

Parameter

Cell 1

Cell 2

Cell 3

Carrier1

Carrier2

Carrier3

Channel Type carried

BCCH

BCCH

BCCH

RF Signal (dBm)

-60 to -80

-65

-70

GPRS_RXLEV_ACCESS_MIN (dBm)

-90

-90

-90

RA COLOUR

001

010

001

RARH (dB)

10

Default

Default

GPRS_PRIORITY_CLASS

0

0

GPRS_HCS_THR

-90

-90

C1

30 to 10

25

20

C31

0

25

20

C32

30 to 10

15

20

NOTE 1: The BA(BCCH) list only contains the ARFCNs of the carriers used during the test.

NOTE 2: The value of RXLEV_ACCESS_MIN is obtained from the SI messages for reselection. NOTE 3: When a neighbouring cell belongs to a different RA, RARH value is deduced from its C32 value during reselection, if the MS is in Standby or Ready state. In absence of PBCCH, when RARH is not available, CRH (from SI messages on BCCH) is used instead (3GPP TS 05.08 subclause 10.1.1).

NOTE 3: GPRS reselection parameters for carrier 1 shall be converted from the idle mode cell reselection parameters received on System Information 4 on BCCH according to 3GPP TS 05.08 table 3a.

20.22.22.4.2 Procedure

a) All the carriers are activated and MS is switched ON. The MS is paged continuously on Carriers 2 and 3.

b) SS completes the GPRS Attach procedure. (Ready Timer is set to default.)

c) Send GPRS reselection parameters through Packet Measurement Order message.

d) SS waits until MS goes into Standby Mode (expiry of Ready Timer). The RF level of carrier 1 is reduced to -80dBm, hence Reselection is triggered.

20.22.22.5 Test Requirements

1) After step a) the MS camps on Carrier 1 and initiates the GPRS Attach procedure.

2) After step d) the MS should respond on Carrier 3 within 11s.

NOTE 1: Time allowed includes 5.9s to perform running average on Carrier 1 (based on BS_PA_MFRMS of 5), 2.4s to decode BCCH carrier, 1s for reselection and 10% timer tolerance.

20.22.23 Void

20.22.24 Void

20.22.25 Void

20.22.26 Void

20.22.27 Void

20.22.28 Void

20.22.29 Packet Measurement order procedure / Downlink transfer / Normal case/ 3G cell reselection dedicated parameters

20.22.29.1 Conformance requirement

For a multi-RAT MS, cells or frequencies with other radio access technologies may be included in 3G Cell Reselection list (see 3GPP TS 04.18). The network controls the measurements for reselection of these cells by the parameter Qsearch_I broadcast on BCCH. Qsearch_I defines a threshold and also indicates whether these measurements shall be performed when RLA_C (see subclause 6.6.1) of the serving cell is below or above the threshold. These measurements may be performed less frequently than measurements of GSM cells as described in subclause 6.6.1, in order to conserve MS power.

The MS shall be able to identify and select a new best UTRAN cell on a frequency, which is part of the 3G Cell Reselection list, within 30 seconds after it has been activated under the condition that there is only one UTRAN frequency in the list and under good radio conditions. For test purposes the following radio conditions can be used: Serving GSM cell at RXLEV= -70 dBm, with 6 GSM neighbours at RXLEV= -75 dBm. Then either an UTRAN FDD neighbour cell or an UTRAN TDD neighbour cell is switched on. The radio conditions for the UTRAN FDD cell are as follows (see TS 25.101 for definitions):

Parameter

Unit

UTRAN FDD Cell

CPICH_Ec/Ior

dB

-10

PCCPCH_Ec/Ior

dB

-12

SCH_Ec/Ior

dB

-12

PICH_Ec/Ior

dB

-15

DPCH_Ec/Ior

dB

-

OCNS_Ec/Ior

dB

-0.94

dB

10

dBm/3.84 MHz

-70

CPICH_Ec/Io

dB

-10.4

CPICH RSCP

dBm

-70

FDD_Qoffset

Integer

5 (-12dB)

FDD_Qmin

Integer

7 (-12 dB)

Qsearch_I

Integer

7 (search always)

Propagation Condition

AWGN

The radio conditions for the UTRAN TDD cell (3.84 Mcps) are as follows (see 3GPP TS 25.123 for definitions and for the values of the remaining configuration parameters):

Parameter

Unit

UTRA TDD Cell

(3.84 Mcps)

Timeslot Number

0

8

P-CCPCH_Ec/Ior

dB

-3

SCH_Ec/Ior

dB

-9

-9

SCH_toffset

Integer

0

0

PICH_Ec/Ior

dB

-3

OCNS_Ec/Ior

dB

-3.12

-3.12

PCCPCH RSCP

dBm

-70

-70

TDD_Qoffset

Integer

5 (-90dBm)

Qsearch_I

Integer

7 (search always)

Propagation Condition

AWGN

NOTE: On timeslot 8 the P-CCPCH is not transmitted; on that timeslot, the PCCPCH RSCP defines the power level of the beacon channel.

The radio conditions for the UNTRAN TDD cell (1.28 Mcps) are as follows:

Parameter

Unit

LCR TDD Cell

(1.28 Mcps)

PCCPCH_Ec/Ior

dB

-3

PICH_Ec/Ior

dB

-3

OCNS_Ec/Ior

dB

-3.12

PCCPCH RSCP

dBm

-70

TDD_Qoffset

Integer

5 (-90dBm)

Qsearch_I

Integer

7 (search always)

Propagation Condition

AWGN

The allowed time is increased by 30 seconds for each additional UTRAN frequency in the 3G Cell Reselection list. However, multiple UTRAN cells on the same frequency in the list do not increase the allowed time.

A multi-RAT MS shall be able to monitor 64 UTRAN cells, divided into (depending on the MS capability):

– FDD cells on up to 3 FDD frequencies, with a maximum of 32 cells per frequency; and/or
– TDD cells on up to 3 TDD frequencies with a maximum of 32 cells per frequency.

The MS shall attempt to read and store UTRAN predefined configurations using the rules defined in 3GPP TS 25.331 with the following exceptions:

– The MS shall build a list of at most 16 predefined configurations, read from the BCCH of the identified UTRAN cells of equivalent PLMNs.

– After PLMN selection (see 3GPP TS 23.122), the MS shall delete any old list of predefined configurations and as soon as possible attempt to read the predefined configurations from one identified UTRAN cell of the selected PLMN or of an equivalent PLMN.

– The MS shall attempt to update the list of predefined configurations every 60 minutes.

In case of a conflict with GSM tasks, the GSM tasks take precedence.

NOTE: Instead of reading new predefined configurations from a PLMN, the MS may use previously received predefined configurations for that PLMN according to the rules in 3GPP TS 25.331.

The MS shall report the list of predefined configurations in the UTRAN CLASSMARK CHANGE message (see 3GPP TS 04.18).

References

3GPP TS 05.08, subclause 6.6.4

20.22.29.2 Test Purpose

To verify that the 3G search parameters and neighbour cell description are correctly used by the MS in order to reselect a 3G cell.

To verify that the individual parameters are used by the MS instead of broadcast 3G cell reselection parameters when the MS receives a PACKET MEASUREMENT ORDER message.

20.22.29.3 Method of test

Initial conditions

System Simulator:

1 GSM/GPRS cell, operating in NC0, 1 UTRAN neighbour cell.

Parameter

Unit

Cell 1

(GSM)

Test Channel

1

RF Signal Level

dBm

-70

For MS supporting FDD:

Parameter

Unit

Cell 2

(UTRAN)

Test Channel

1

CPICH_Ec (FDD)

dBm / 3.84 MHz

OFF to –70

For MS supporting TDD:

Parameter

Unit

Cell 2

(UTRAN)

Test Channel

1

PCCPCH_Ec (TDD)

dBm / 1.28 MHz

OFF to –70

– 3GPP TS 34.108, subclause 6.1 shall be referenced for default parameters of UTRAN Cell.

  • 3GPP TS 34.123-3, subclause 8.3.2 shall be referenced for configuring channels on UTRAN Cell.

– Qrxlevmin value for Cell 2 (UTRAN) is set to -115 dBm in SIB3 and SIB 4 (see specific message contents).

Mobile Station:

MS is in Packet Idle mode and GPRS attached.

PDP context established.

Specific PICS statements:

  • Support of UTRAN FDD (TSPC_Type_UTRAN_FDD)
  • Support of UTRAN TDD (TSPC_Type_UTRAN_TDD)

Foreseen final state of the MS

– MS is in Packet Idle mode.

Test procedure

The GSM/GPRS cell operates in NC0. The MS is brought into downlink packet transfer mode on GSM carrier. The SS sends a PACKET MEASUREMENT ORDER message, setting Qsearch_P to “Never”. The SS activates UTRAN carrier with higher RF signal strength than GSM carrier. The MS shall stay camping in the cell of Carrier 1. During the transfer, the SS sends a PACKET MEASUREMENT ORDER message, setting 3G search to “Always”.

The GPRS 3G Cell Reselection list includes UTRAN frequencies.

If the UTRAN operates in FDD mode, the MS then reselects (see TS 25.304) a UTRAN FDD cell when its measured RSCP value exceeds the value of RLA_P for the serving cell by the value FDD_GPRS_Qoffset for a period of 5 seconds and the UTRAN cell measured Ec/No value is equal or greater than the value FDD_Qmin, where FDD_Qmin and FDD_Qoffset are broadcast on BCCH of the serving cell.

If the UTRAN operates in TDD mode, the MS then reselects a UTRAN TDD cell when its measured RSCP value exceeds the value of TDD_Qoffset.

The UTRAN neighbour cell is suitable and the parameters required to determine if it is suitable are broadcast on BCCH of the UTRAN cell.

Maximum duration of the test

3 minutes

Expected Sequence

This sequence is performed for each UTRAN mode the MS supports.

Step

Direction

Message

Comments

1

MS

The MS is GPRS attached and has activated a PDP context (see PICS) on GSM carrier.

2

SS -> MS

IMMEDIATE ASSIGNMENT

Sent on a PCH block corresponding to the MS’s paging group, including a packet downlink assignment with correct TLLI.Triggers the MS to monitor the assigned PDCH. With a valid RRBP.

3

MS -> SS

PACKET CONTROL ACK

MS acknowledges on PACCH the IMMEDIATE ASSIGNMENT

4

SS->MS

PACKET MEASUREMENT ORDER

Sent on PACCH of GSM carrier

PMO message contains

Qsearch_P set to “Never”.

Note: NETWORK_CONTROL_ORDER stil indicates NC0

5

SS->MS

SS sends downlink data,

6

Void

7

For FDD:

Activate UTRAN carrier setting the CPICH Ec level to –70 dBm / 3.84 MHz

For TDD:

Activate UTRAN carrier setting the PCCPCH Ec level to –70 dBm / 1.28 MHz.

Repetition of step 5 for 15 secs during which TBF is maintained

8

The SS verifies that no RRC CONNECTION REQUEST is received from the MS

9

SS->MS

PACKET MEASUREMENT ORDER

Sent on PACCH of GSM carrier; the PMO message contains Qsearch_P set to “Always”.

Note: NETWORK_CONTROL_ORDER stil indicates NC0

Repetition of step 5 for 30 secs during which TBF is maintained.

10

Check that after 15s, the MS does not camp any more on the GSM cell: the MS stops sending PACKET DOWNLINK ACK/NACK messages when requested.

11

MS -> SS

RRC CONNECTION REQUEST

Verify that the MS has reselected the UTRAN carrier. The SS verifies that the time between the end of Step 9 and the RRC CONNECTION REQUEST is between 5 secs and 30 secs.

Specific message contents

System Information Block type 3 and 4

Use the same message type found in clause 6.1.0b of TS 34.108, with the following exceptions:

– Qrxlevmin

-58 (-115)

IMMEDIATE ASSIGNMENT in step 2

As in section 41.2.6.1.

SYSTEM INFORMATION TYPE 2quater (Instance 1 of 1) for FDD mode:

MESSAGE_TYPE

00000111

MP_CHANGE_MARK

0

SI2quater_INDEX

0000

SI2quater_COUNT

0000

3G Neighbour Cells Description

UTRAN FDD Description

Repeated UTRAN FDD Neighbour Cells

FDD-ARFCN

0 See TS 34.108, clause 6.1.5, table 6.1.1,( Parameter UTRA RF Channel Number)

FDD_Indic0

Set to 0

NR_OF_FDD_CELLS

Set to 1

GPRS 3G MEASUREMENT Parameters Description

Qsearch_P

Set to 7: always search for 3G cells..

3G_SEARCH_PRIO

Indicates if 3G cells may be searched when BSIC decoding is required. Set to 1 = yes

3G MEASUREMENT Parameters Description

Qsearch_I

Set to 7: always search for 3G cells..

FDD_Qoffset

Applies an offset to RLA_P for cell re-selection to access technology/mode: -12dB.

FDD_Qmin

Minimum threshold for Ec/No for UTRAN FDD cell re-selection: -12 dB.

SYSTEM INFORMATION TYPE 2quater (Instance 1 of 1) for TDD mode:

MESSAGE_TYPE

00000111

MP_CHANGE_MARK

0

SI2quater_INDEX

0000

SI2quater_COUNT

0000

3G Neighbour Cells Description

UTRAN TDD Description

Repeated UTRAN TDD Neighbour Cells

NR_OF_TDD_CELLS

Set to 1

GPRS 3G MEASUREMENT Parameters Description

Qsearch_P

Set to 7: always search for 3G cells.

3G_SEARCH_PRIO

Indicates if 3G cells may be searched when BSIC decoding is required. Set to 1 = yes

3G MEASUREMENT Parameters Description

Qsearch_I

Set to 7: always search for 3G cells..

TDD_Qoffset

Set to 5: cell re-selection to 3G TDD cell when PCCPCH RSCP of TDD cell exceeds -90dbm.

PACKET MEASUREMENT ORDER in step 4:

MESSAGE_TYPE

0000 11

PAGE_MODE

00 Normal Paging

TLLI

10 (address is TLLI)

Same as the value received from MS

PMO_INDEX

0 0 0 first message

PMO_COUNT

0 0 0 one message expected

{ 0 | 1 < NC Measurement Parameters }

1 NC Measurement Parameters available

NC Measurement Parameters

NETWORK_CONTROL_ORDER

0 0 NC0

{ 0 | 1 < NC_NON_DRX_PERIOD

< NC_REPORTING_PERIOD_I

< NC_REPORTING_PERIOD_T }

1 Additional NC parameters available

NC_NON_DRX_PERIOD = 000

(No non-DRX mode after a measurement report has been sent)

NC_REPORTING_PERIOD_I = 111

(61.44 sec)

NC_REPORTING_PERIOD_T = 011

(3.84 sec)

{ 0 | 1 < NC_FREQUENCY_LIST }

1 NC Frequency list struct available

{ 0 | 1 { < NR_OF_REMOVED_FREQ >

{ 1 < List of added Frequency >}

0 no NC Frequency removed

1 List of added Frequency available

List of added Frequency

< START_FREQUENCY >

< BSIC >

{ 0 | 1 < Cell selection params >}

BCCH ARFCN of Cell BBSIC of Cell B1 cell selection parameters present

Cell selection params

< CELL_BAR_ACCESS_2 >

< EXC_ACC >

< SAME_RA_AS_SERVING_CELL >

{ 0 | 1 < GPRSPower information >

< GPRS_RXLEV_ACCESS_MIN >

< GPRS_MS_TXPWR_MAX_CCH > }

{ 0 | 1 < GPRS Selection Info >

< GPRS_TEMPORARY_OFFSET >

< GPRS_PENALTY_TIME : bit (5) > }

{ 0 | 1 < GPRS Reselection Info > }

< GPRS_RESELECT_OFFSET > }

{ 0 | 1 < HCS parameter Info }

< PRIORITY_CLASS >

< HCS_THR >

{ 0 | 1 < SI13 PBCCH LOCATION Info> } ;

0

1

1

1 GPRS power info present

011111 — -80 dBm

01010

1 GPRS Selection Info present

000

00000

1 GPRS Reselection Info present

10000

1 HCS parameter Info present

001

10100

0 No SI13 PBCCH LOCATION Info present

Frequency Info continued

< NR_OF_FREQUENCIES >

< FREQ_DIFF_LENGTH : bit (3) >

< FREQUENCY_DIFF >

< BSIC >

{ 0 | 1 < Cell selection params > }

< FREQUENCY_DIFF >

< BSIC >

{ 0 | 1 < Cell selection params > }

00010

000

1

BSIC of Cell B0 no cell selection parameters present

1

BSIC of Cell B0 no cell selection parameters present

0;

Ending repetition of < List of added Frequency >

{ 0 | 1 < EXT Measurement Parameters > }

{ null | 0 bit** | 1 Additions in release 98 >

{ 0 | 1 < LSA Parameters > }

{ null | 0 bit** | 1 Additions in release 99 >

{ 0 | 1 < ENH Measurement Parameters > }

0 No EXT Measurement Parameters present

1 Additions in release 98

0 No LSA parameters present

1 Additions in release 99

1 ENH Measurement Parameters present

ENH Measurement Parameters

{ 0 < BA_IND Info | 1 < PSI3_CHANGE_MARK > }

< BA_IND>

< 3G_BA_IND>

< PMO_IND >

< REPORT_TYPE >

< REPORTING_RATE >

< INVALID_BSIC_REPORTING >

{ 0 | 1 < 3G Neighbour Cell Description > }

{ 0 | 1 < GPRS REP PRIORITY Description > }

{ 0 | 1 < GPRS MEASUREMENT Parameters Description > }

{ 0 | 1 < GPRS 3G MEASUREMENT Parameters Description > }

< Qsearch_P >

< 3G_SEARCH_PRIO>

{ 0 | 1 < FDD_REP_QUANT Info > }

{ 0 | 1 < FDD_REPORTING_OFFSET Info >}

{ 0 | 1 < TDD_MULTIRAT_REPORTING Info> }

{ 0 | 1 < TDD_REPORTING_OFFSET Info >}

{ 0 | 1 < CDMA2000_MULTIRAT_REPORTING Info> }

{ 0 | 1 < CDMA2000_REPORTING_OFFSET Info >}

0

0 3G Neighbour Cell Description not present

0 GPRS REP PRIORITY Description not present

0 GPRS MEAS Parameters Description not present

1 GPRS 3G MEASParameters Description present

1111 — never

1

0 FDD_REP_QUANT Info not present

0 FDD_REPORTING_OFFSET Info not present

0 TDD_MULTIRAT_REPORTING Info not present

0 TDD_ REPORTING_OFFSET Info not present

0 CDMA 2000_MULTIRAT_REPORTING info not present

0 CDMA2000_ REPORTING_OFFSET Info not present

{ null | 0 bit** | 1 Additions in release R4 >

< padding bits >

Spare Padding

PACKET MEASUREMENT ORDER in step 9:

Same as PACKET MEASUREMENT ORDER in step 4, except:

Qsearch_P

Set to 7 (“Always”)

20.22.29a Packet Measurement order procedure / Downlink transfer / Normal case/ 3G cell reselection dedicated parameters with GEA2 and UEA2 ciphering

20.22.29a.1 Conformance requirement

Identical to 20.22.29.1

20.22.29a.2 Test Purpose

Identical to 20.22.29.2 but the ciphering algorithms GEA2 and UIA2/UEA2 are used instead.

20.22.29a.3 Method of test

Identical to 20.22.29.3.

Specific message contents

Similar to the specific message contents in 20.22.29 except the Rel-7 IE are used and the UE capability to support UIA2/UEA2 and GEA2 are checked instead.

20.22.29b Packet Measurement order procedure / Downlink transfer / Normal case/ 3G cell reselection dedicated parameters with GEA3 and UEA2 ciphering

20.22.29b.1 Conformance requirement

Identical to 20.22.29.1

20.22.29b.2 Test Purpose

Identical to 20.22.29.2 but the ciphering algorithms GEA3 and UIA2/UEA2 are used instead.

20.22.29b.3 Method of test

Identical to 20.22.29.3.

Specific message contents

Similar to the specific message contents in 20.22.29 except the Rel-7 IE are used and the UE capability to support UIA2/UEA2 and GEA3 are checked instead.

20.22.29c Packet Measurement order procedure / Downlink transfer / Normal case/ 3G cell reselection dedicated parameters with GEA4 and UEA2 ciphering

20.22.29c.1 Conformance requirement

Identical to 20.22.29.1

20.22.29c.2 Test Purpose

Identical to 20.22.29.2 but the ciphering algorithms GEA4 and UIA2/UEA2 are used instead.

20.22.29c.3 Method of test

Identical to 20.22.29.3.

Specific message contents

Similar to the specific message contents in 20.22.29 except the Rel-9 IE are used and the UE capability to support UIA2/UEA2 and GEA4 are checked instead.

20.22.30 Cell Reselection/usage of BA(GPRS)

20.22.30.1 Cell Reselection/usage of BA(GPRS)/ Most suitable cell not in BA(GPRS)

20.22.30.1.1 Conformance requirement

Whilst in packet idle mode (see 03.64) an MS shall continuously monitor all BCCH carriers as indicated by the BA(GPRS) list and the BCCH carrier of the serving cell.References

3GPP TS 05.08, subclause 10.1.1.1

20.22.30.1.2 Test Purpose

To verify that the MS uses the BA(GPRS) list for the reselection and measurement. If the most suitable cell is not in the BA(GPRS) list, then it is not considered for the reselection.

20.22.30.1.3 Method of test

Initial conditions

Parameter

Cell A

Cell B

Cell C

Channel Type Carried

BCCH

BCCH

BCCH

RF Signal Level (dBm)

-60

-70

-70

RXLEV_ACCESS_MIN (dBm)

-85

-85

-85

NETWORK_CONTROL_ORDER

NC2

NC0

NC0

NC_REPORTING_PERIOD_I

3.84 sec

Default

Default

C1

25 to -10

15

15 to 35

C32

25 to -10

15

15 to 35

NOTE 1: All cells support GPRS. Network Control Reporting information is broadcasted using the SI2 Quater.

NOTE 2: Cell C is not a part of BA(GPRS) – i.e. NC frequency List of PMO and BA(BCCH) -, Cell B is part of BA(GPRS)on Cell A

Procedure

a) The SS activates all Cells.

b) MS is switched ON.

c) The MS shall complete the GPRS attach procedure on Cell A(Ready Timer deactivated).

d) SS increases the signal strength of Cell C to -50dBm.

e) SS receives measurement report till the measurements of Cell B are included in it.

f) SS sends a PACKET MEASUREMENT ORDER changing the NC mode to NC0.

g) SS reduces the signal strength of Cell A to -95 dBm.

20.22.30.1.4 Test Requirements

1) MS shall camp on Cell A after step b) and initiate the attach procedure.

2) In step e), MS should not include the measurements of Cell C in the measurement reports. This is checked up to Max{5s, 5 consecutive paging blocks of that MS} to ensure the MS has completed the running average measurements of the neighbour cells.

3) In step f), SS checks that the MS stays on Cell A, and does not reselect to Cell C, even though Cell C is better than Cell A for a period of 5s + Max{5s, 5 consecutive paging blocks of the MS}.

4) In step g), the MS shall respond on Cell B even though the Cell C is better than Cell B for reselection, as Cell C is not a part of BA(GPRS). The response should be within the time given in the note below.

NOTE: Time allowed includes Max{5s, 5 consecutive paging blocks of the MS} for MS to determine C32 of Cell C is greater than Cell A, 2 seconds to decode BCCH and 1 sec for re-selection.

20.22.30.2 Cell Reselection / usage of BA(GPRS) / Change of BA(GPRS)

20.22.30.2.1 Conformance requirement

Whilst in packet idle mode (see 03.64) an MS shall continuously monitor all BCCH carriers as indicated by the BA(GPRS) list and the BCCH carrier of the serving cell.

References

3GPP TS 05.08, subclause 10.1.1.1.

20.22.30.2.2 Test Purpose

To verify that if the BA(GPRS) list is changed in the broadcast, MS uses the new BA(GPRS).

20.22.30.2.3 Method of test

Initial conditions

Parameter

Cell A

Cell B

Cell C

Channel Type Carried

BCCH

BCCH

BCCH

RF Signal Level (dBm)

-60

-70

-70

RXLEV_ACCESS_MIN (dBm)

-90

-90

-90

NETWORK_CONTROL_ORDER

NC2

NC0

NC0

NC_REPORTING_PERIOD_I

3.84 sec

Default

Default

C1

30

20

20

C32

30

20

20

NOTE 1: All cells support GPRS. Network Control Reporting information is broadcasted using the SI2 Quater.

NOTE 2: Cell C is not a part of BA(GPRS) – i.e. NC frequency List of PMO and BA(BCCH) – , Cell B is part of BA(GPRS) on Cell A.

Procedure

a) The SS activates all Cells.

b) MS is switched ON.

c) The SS shall complete the GPRS attach procedure on Cell A(Ready Timer deactivated).

d) The SS increases the signal strength of Cell C to -50dBm.

e) SS receives NC measurement report till the measurements of Cell B are included in the PACKET MEASUREMENT REPORT.

f) SS changes the broadcast information to include Cell C as a part of the BA(GPRS) on Cell A.

g) SS receives NC measurement report till the measurements of Cell B and Cell C are included in the PACKET MEASUREMENT REPORT.

h) SS sends a PACKET MEASUREMENT ORDER changing the NC mode to NC0. PACKET MEASUREMENT ORDER must be sent within NC_REPORTING_PERIOD_I from receiving latest PACKET MEASUREMENT REPORT.

20.22.30.2.4 Test Requirements

1) MS shall camp on Cell A after step b) and initiate the attach procedure.

2) In step e), MS should not include the measurements of Cell C in the measurement reports. This is verified up to Max{5s, 5 consecutive paging blocks of that MS} to ensure the MS has completed the running average measurements of the neighbour cells.

3) In step g), SS checks that the MS stays on Cell A for a minimum period of 8 * 51 Multiframes (complete update of BCCH content) + Max{5s, 5 consecutive paging blocks of the MS} (for MS to update running average) + 5s (to give erroneous MS time to reselect including the periodical SI13 decoding to identify BCCH_CHANGE_MARK change and the following SI update).

4) After step h), the MS shall respond on Cell C within the time given in the note below.

Note: Time allowed includes Max{5s, 5 consecutive paging blocks of the MS} for MS to determine C32 of cell C is greater than cell A, 2 seconds to decode BCCH and 1 sec for re-selection.

20.22.30.3 Cell Reselection/usage of BA(GPRS)/ Measurement on first 32 entries.

20.22.30.3.1 Conformance requirement

Whilst in packet idle mode (see 03.64) an MS shall continuously monitor all BCCH carriers as indicated by the BA(GPRS) list and the BCCH carrier of the serving cell.

The GSM Neighbour Cell list may contain up to 96 GSM Neighbour Cells. The total number of GSM frequencies to measure shall not exceed 32. If the list includes more than 32 frequencies, the MS shall only measure the 32 frequencies with the lowest indices.

References

3GPP TS 05.08, subclause 10.1.1.1

3GPP TS 04.60, subclause 5.6.3.2

20.22.30.3.2 Test Purpose

To verify that if the BA(GPRS) includes more than 32 frequencies in that case MS shall only measure the 32 frequencies with lowest indices.

20.22.30.2.3 Method of test

Initial conditions

Parameter

Cell A

Cell B

Cell C

Channel Type Carried

BCCH

BCCH

BCCH

RF Signal Level (dBm)

-60

-70

-70

RXLEV_ACCESS_MIN (dBm)

-90

-90

-90

NETWORK_CONTROL_ORDER

NC2

NC0

NC0

NC_REPORTING_PERIOD_I

3.84 sec

Default

Default

C1

30

20

20

C32

30

20

20

NOTE 1: All cells support GPRS. Network Control Reporting information is broadcasted using the SI2 Quater.

NOTE 2: Cell B is 32nd while Cell C is 33rd in the BA(GPRS) – i.e. BA(BCCH) – on Cell A.

Procedure

a) The SS activates all Cells.

b) MS is switched ON.

c) The MS shall complete the GPRS attach procedure (Ready Timer deactivated) on Cell A.

d) SS receives 25 NC measurement reports in idle mode.

20.22.30.3.4 Test Requirements

1) After step b) MS shall camp on Cell A and initiate the attach procedure.

2) In step d), SS checks that the MS includes measurements of Cell B in the PACKET MEASUREMENT REPORT while the measurements of Cell C are not included in any of the measurement reports.

20.22.31 Network controlled cell reselection / Transfer mode

20.22.31.1 Network controlled cell reselection / Downlink transfer / Normal case/ Location and Routing Area Update/ NMO I

20.22.31.1.1 Conformance requirement

When a cell reselection is initiated by the network for an individual mobile station, the cell change order procedure is started by sending a PACKET CELL CHANGE ORDER message to the mobile station on the PCCCH or PACCH.

Upon receipt of the PACKET CELL CHANGE ORDER message the mobile station shall start timer T3174.

When a cell reselection is made controlled by the network, the mobile station shall act upon the IMMEDIATE_REL value which has been received in the Packet Cell Change Order: if required, the mobile station shall abort any TBF in progress by immediately ceasing to decode the downlink, ceasing to transmit on the uplink, stopping all RLC/MAC timers except for timers related to measurement reporting. The mobile station shall then switch to the identified specified new cell and shall obey the relevant RLC/MAC procedures on this new cell.

To initiate a combined routing area updating procedure the MS sends the message ROUTING AREA UPDATE REQUEST to the network, starts timer T3330 and changes to state GMM-ROUTING-UPDATING-INITIATED and MM LOCATION UPDATING PENDING. The value of the update type IE in the message shall indicate "combined RA/LA updating". If for the last attempt to update the registration of the location area a MM specific procedure was performed, the value of the update type IE in the ROUTING AREA UPDATE REQUEST message shall indicate "combined RA/LA updating with IMSI attach". Furthermore the MS shall include the TMSI status IE if no valid TMSI is available.

20.22.31.1.2 References

3GPP TS 04.60, subclauses 8.4 and 5.5.1.1.

3GPP TS 04.08 / 3GPP TS 24.008 subclause 4.7.5.2.

20.22.31.1.3 Test Purpose

To test the behaviour of the MS when the network triggers a Packet Cell Change Order to a cell belonging to another routing area, whereas the network mode of operation I is active, i.e:

To verify that the MS switches to the new cell under network control.

To verify that the MS performs the Combined Routing Area Update procedure.

20.22.31.1.4 Method of test

Initial conditions

System simulator:

All 3 Cells should be activated.

Parameters changed from the default values in table 20.22.1.

Parameter

Cell A

Cell B

Cell C

Channel Type Carried

BCCH

BCCH

BCCH

RF Signal Level (dBm)

-60

-80

-70

RXLEV_ACCESS_MIN (dBm)

-100

-100

-100

NETWORK_CONTROL_ORDER

NC2

NC2

NC2

NC_REPORTING PERIOD_T (s)

0,96

0,96

Network Mode of Operation

NMO 1

NMO 1

NMO 1

RAC

Default

Default

Different to default

LAC

Default

Default

Different to default

C1

40-20

20-40

30

C32

40-20

20-40

30

20.22.31.1.5 void

20.22.31.1.6 Foreseen final state of the MS

– MS is in Transfer mode on Cell C.

20.22.31.1.7 Test procedure

a) The MS is switched on and completes GPRS Attach procedure (ready timer deactivated) on Cell A. MS is PDP context activated and brought into packet transfer mode.

b) The RF level of Cell A is reduced to -80 dBm. (C32 becomes 20).

c) The SS waits 15 s after the RF level of Cell A is reduced before sending Packet Cell Change Order, with the IMMEDIATE_REL bit set to FALSE, to the MS to select Cell C. The MS shall complete a combined RA/LA unpdate procedure on Cell C.

d) The RF level of Cell B is increased to -60 dBm. (C32 becomes 40).

e) The SS waits 15 s after increasing the RF level of Cell B to ensure no RA update takes place on Cells A or B.

NOTE: During the TBF, T3158 may expire and thus PACKET MEASUREMENT REPORT could be sent at any time while the downlink transfer is in progress. The SS shall be prepared for this.

20.22.31.1.8 Test Requirements

1) After step b) there should be no response (RA update or cell update) on Cell B or C.

2) After step c) there should be a response on Cell C. Since the LA update is combined with the RA update, there should be no LA update on Cell C.

Note: Time allowed includes 2 seconds to decode BCCH and 5 sec for re-selection.

3) After step d) there should be no response on Cell A or B.

Note: Time allowed includes max(1 second, 1 paging block of the MS) + 2 seconds to decode BCCH + 1s for reselection + 1s tolerance.

20.22.31.1.9 Maximum duration of the test

4 minutes

20.22.31.2 Network controlled cell reselection / Downlink transfer / Normal case/ Location and Routing Area Update/ NMO II

20.22.31.2.1 Conformance requirement

When a cell reselection is initiated by the network for an individual mobile station, the cell change order procedure is started by sending a PACKET CELL CHANGE ORDER message to the mobile station on the PCCCH or PACCH.

Upon receipt of the PACKET CELL CHANGE ORDER message the mobile station shall start timer T3174.

When a cell reselection is made controlled by the network, the mobile station shall act upon the IMMEDIATE_REL value which has been received in the Packet Cell Change Order: if required, the mobile station shall abort any TBF in progress by immediately ceasing to decode the downlink, ceasing to transmit on the uplink, stopping all RLC/MAC timers except for timers related to measurement reporting. The mobile station shall then switch to the identified specified new cell and shall obey the relevant RLC/MAC procedures on this new cell.

To initiate the normal routing area updating procedure, the MS sends the message ROUTING AREA UPDATE REQUEST to the network, starts timer T3330 and changes to state GMM-ROUTING-AREA-UPDATING-INITIATED. The message ROUTING AREA UPDATE REQUEST shall contain the P-TMSI signature when received within a previous ATTACH ACCEPT or ROUTING AREA UPDATE ACCEPT message.

If the routing area updating request has been accepted by the network, a ROUTING AREA UPDATE ACCEPT message shall be sent to the MS. The network may assign a new P-TMSI and/or a new P-TMSI signature for the MS. If a new P-TMSI and/or P-TMSI signature have been assigned to the MS, it/they shall be included in the ROUTING AREA UPDATE ACCEPT message together with the routing area identification.

If the network operates in mode II or III, then a GPRS-attached MS that has the capability to be simultaneously GPRS-attached and IMSI-attached shall perform the (non-combined) Routing Area Update procedures, and either:

– access the non-GPRS common control channels for CS operation (the way that CS operation is performed in parallel with GPRS operation is an MS implementation issue outside the scope of the present document); or

– if CS operation is not desired, depending on system information that defines whether or not explicit detach shall be used, either:

– avoid all CS signalling (in which case the MS may be implicitly IMSI detached after a while); or

– perform an explicit IMSI detach via the non-GPRS common control channels (if the MS was already IMSI-attached).

20.22.31.2.2 References

3GPP TS 04.60, subclauses 8.4 and 5.5.1.1.

3GPP TS 04.08 / 3GPP TS 24.008 subclause 4.7.5.1.

3GPP TS 03.60, subclause 6.5

20.22.31.2.3 Test Purpose

To test the behaviour of the MS when the network triggers a Packet Cell Change Order to a cell belonging to another routing area, whereas the network mode of operation II is active, i.e:

To verify that the cell change order procedure is started when the MS receives a PACKET CELL CHANGE ORDER message.

To verify that the MS switches to the new cell under network control.

To verify that the MS performs separate Normal Location and Routing Area Update procedures.

20.22.31.2.4 Method of test

Initial conditions

System simulator:

Parameters changed from the default values in table 20.22.1.

Parameter

Cell A

Cell B

Cell C

Carrier 1

Carrier 2

Carrier 3

Channel Type Carried

BCCH

BCCH

BCCH

RF Signal Level (dBm)

-60

-80

-70

Serving Cell Parameters

RXLEV_ACCESS_MIN (dBm)

-100

-100

-100

NETWORK_CONTROL_ORDER

NC2

NC2

NC2

NC_REPORTING PERIOD_T (s)

0,96

0,96

Network Mode of Operation

NMO 2

NMO 2

NMO 2

RAC

Default

Default

Different to default

LAC

Default

Default

Different to default

C1

40-20

20-40

30

C32

40-20

20-40

30

20.22.31.2.5 void

20.22.31.2.6 Foreseen final state of the MS

– MS is in Transfer mode on carrier 3.

20.22.31.2.7 Test procedure

a) The MS is switched on and completes GPRS Attach procedure (ready timer deactivated) on carrier 1. MS is PDP context activated and brought into packet transfer mode.

b) The RF level of carrier 1 is reduced to -80 dBm. (C32 becomes 20).

c) The SS waits 15 s after the RF level of carrier 1 is reduced before sending Packet Cell Change Order, with the IMMEDIATE_REL bit set to FALSE, to the MS to select carrier 3. The MS shall complete Routing Area Update procedure and Location Update procedure on carrier 3.

d) The RF level of carrier 2 is increased to -60 dBm. (C32 becomes 40).

e) The SS waits 15 s after increasing the RF level of carrier 2 to ensure no RA update takes place on carriers 1 and 2.

NOTE: During the TBF, T3158 may expire and thus PACKET MEASUREMENT REPORT could be sent at any time while the downlink transfer is in progress. The SS shall be prepared for this.

20.22.31.2.8 Test Requirements

1) After step b) there should be no response on carriers 2 or 3.

2) After step c) there should be a response on carrier 3 (the order in which the LA and RA updates occur is not the subject of this test).

NOTE: Time allowed includes 2 seconds to decode BCCH and 5 sec for re-selection.

20.22.31.2.9 Maximum duration of the test

4 minutes

20.22.32 Cell selection and Power Efficiency Operation

20.22.32.1 PEO Reduced Monitoring – Reselection based on C1_DELTA

20.22.32.1.1 Conformance requirement

  • The MS shall keep track of two C1 values:

– C1a, the best C1 value experienced in the serving cell since last performing measurements for cell reselection, or, after cell selection, since selecting the serving cell; and

– C1b, the most recently evaluated C1 (i.e. the current C1 value)

Upon evaluating C1 it determines if the current C1 value (C1b) is less than the best C1 value (C1a) by more than C1_DELTA. C1_DELTA is calculated each time measurements for cell re-selection are performed, see subclause 6.6.1a.4. After cell selection, C1_DELTA shall be set to the value of the C1_DELTA_MIN parameter sent in SI13 for PEO and in EC SI 3 for EC operation – see 3GPP TS 44.018 [17].

The MS shall proceed as described in sub-clause 6.6.1a.4 if any of the following criteria are fulfilled:

– Cell selection has been completed and monitoring of non-serving cells for cell reselection has not yet been performed;

– C1 ≤ 0;

– A change in BSIC is detected;

– A downlink signalling failure is declared;

– C1a – C1b > C1_DELTA; or

– More than 24 hours have passed since the last evaluation of C1 and C2 of non-serving cells.

20.22.32.1.2 References

3GPP TS 45.008, subclauses 6.6.1a.2 and 6.6.1a.3

20.22.32.1.3 Test Purpose

To verify that an MS that has enabled PEO, in packet idle mode, supports a reduced monitoring:

– C1_DELTA could trigger a reselection

– C1a value (Best C1 value on that cell) is updated to compare it with C1_DELTA

– C1_DELTA is updated with neighbour cell measurements

20.22.32.1.4 Method of test

Initial conditions

System simulator:

Parameters changed from the default values in table 20.22.1.

Cell 1 is activated, Cell 2 is not.

Parameter

Cell 1

Cell 2

Carrier1

Carrier2

Channel Type carried

BCCH

BCCH

RF Signal (dBm)

-90

–50

CBA

0

0

RXLEV_ACCESS_MIN (dBm)

-100

-100

CRH (dB)

Default

Default

C1_Delta

12 dBm

C1

10

50

Mobile station:

– MS is in packet idle mode, PEO enabled, on carrier 1, eDRX cycle negotiated to 0000 (1.9s)

Foreseen final state of the MS”

– MS is in packet idle mode, PEO enabled, on carrier 2.

20.22.32.1.7 Test procedure

a) Cell 2 is activated and the SS pages the MS on carrier 2 (RF at -50 dBm),

b) After 1 min, the RF level of carrier 1 is reduced to -95dBm.

c) After 1 min, the RF level of carrier 1 is increased to -80 dBm.

d) After 2 min, the RF level of carrier 1 is reduced to -95 dBm.

e) After 2 min, the RF level of Carrier 2 is reduced to -70 dBm, the RF level of carrier 1 is increased to -85 dBm, and the SS pages the MS on carrier 1.

f) After 2 min, the RF level of Carrier 2 is reduced to -80 dBm, the RF level of carrier 1 is increased to -60 dBm.

20.22.32.1.8 Test Requirements

1) After step a), there should be no response form MS on carrier 2, C1(a and b) should be 10.2) after step b), there should be no response on carrier 2.

NOTE 1: C1(b) =5, C1a – C1b < C1_DELTA and C1_DELTA= C1_DELTA_MIN as initial value.

3) After step c) C1(a) should then be 20, there should be no response on carrier 2.

4) After step d) there should be a response on carrier 2 within 1min as reselection process is triggered by C1a – C1b > C1_DELTA and C2 of carrier 2 identifies this carrier as the best cell.

NOTE 2: As C1(b) =5, C1a – C1b > C1_DELTA and C1_DELTA= C1_DELTA_MIN here as C1 from Carrier 1 < C1 from Carrier 2 and C_DELTA=min(max(D=C1_Cell1 – C1_Cell2, C1_DELTA_MIN), C1_DELTA_MAX). After reselection, C1a of carrier 2 is now 50 after reselection.

5) After step e), there should be no response on carrier 1.

NOTE 3: As C1(b)=30, C1a – C1b > C1_DELTA as a 20 dB drop is generated on carrier 2 so a reselection measurement is triggered but carrier 2 is still considered as the best Cell (as per C2). After reselection, C1a of carrier 2 is updated to 30 as well (-70 ). After the reselection measurements the new C1_DELTA value is 15 (i.e. C1_DELTA_MAX) as D = C1 carrier 2 – C1 carrier 1 = 15 > C1_DELTA_MIN.

6) After step f), there should be no response on carrier 1, this is checked for 2 min.

NOTE 4:As C1(b) =20, C1a – C1b = 10 < C1_DELTA (as updated after step e) as a 10 dB drop is generated on carrier 2 but even if carrier 1 could be considered as the best cell, no reselection process is initiated as C1_DELTA is not C1_DELTA_MIN anymore.

20.22.32.1.9 Maximum duration of the test

10 minutes

20.22.32.2 PEO Reduced Monitoring – Downlink signalling Failure based on PEO_DSC

20.22.32.2.1 Conformance requirement

A MS that has enabled PEO with eDRX shall, upon entering packet idle mode, initialize PCH_DSC to the value indicated by the PEO_DSC field of the SI 13 Rest Octets IE (see 3GPP TS 44.018 [17]). Thereafter, if the MS successfully decodes a message in its paging subchannel (i.e. using its nominal paging group) PCH_DSC is incremented by 1, but not beyond the initial value. Otherwise, it shall decrement PCH_DSC by 1 and begin monitoring PCH blocks according to the shortest eDRX cycle value (i.e. eDRX Cycle Value = 0000, see 3GPP TS 45.002 [22]). While monitoring PCH blocks according to the shortest eDRX cycle value the MS shall still monitor PCH paging occasions determined by its negotiated eDRX value. It repeats the process of incrementing/decrementing PCH_DSC based on the outcome of each attempted PCH decoding until it either successfully decodes a PCH/AGCH message (at which point it resumes monitoring only PCH blocks corresponding to its negotiated eDRX Cycle Value) or PCH_DSC = 0 at which point a downlink signalling failure shall be declared. A MS that has enabled PEO shall use a non-DRX mode period of zero seconds.

NOTE: The network sends the paging subchannel for a given MS every BS_PA_MFRMS multiframes or, in case DRX period split is supported, every 1/NDRX multiframes. An exception is the case of a MS that is using eDRX in which case the network sends paging messages using paging sub-channels as described in 3GPP TS 45.002 [22]. The requirement for network transmission on the paging subchannel is specified in 3GPP TS 44.018 [17] or 3GPP TS 44.060 [19], 3GPP TS 44.118 [20] or 3GPP TS 44.160 [21]. The MS is required to attempt to decode a message every time its paging subchannel is sent.

20.22.32.2.2 References

3GPP TS 45.008, subclauses 6.5

20.22.32.2.3 Test Purpose

To verify that an MS that has enabled PEO and faces a Downlink Signalling Failure will use the PEO_DSC parameter:

1. To verify that the MS that has enabled PEO the PCH_DSC counter in accordance with the conformance requirement. This is verified indirectly.

2. To verify that whenever the MS successfully decodes a message on paging subchannel, the PCH_DSC is increased by 1. This is verified indirectly.

3 To verify that whenever the MS can not successfully decode a message on paging subchannel, the PCH_DSC decreased by 1. This is verified indirectly.

4. To verify that when the MS does not successfully decode a message in its paging subchannel (i.e. using its nominal paging group), it shall and begin monitoring PCH blocks according to the shortest eDRX cycle value and increment or decrement PCH_DSC accordingly.

4. To verify that when the PCH_DSC reaches 0, a downlink signalling failure shall be declared and the MS will perform cell reselection.

20.22.32.2.4 Method of test

Initial conditions

System simulator:

Parameters changed from the default values in table 20.22.1.

Cell 1 and Cell 2 activated.

Parameter

Cell 1

Cell 2

Carrier1

Carrier2

Channel Type carried

BCCH

BCCH

RF Signal (dBm)

-80

-90

CBA

0

0

RXLEV_ACCESS_MIN (dBm)

-100

-100

CRH (dB)

Default

Default

PEO_DSC

10

10

C1

20

10

Mobile station:

– MS is in packet idle mode, PEO enabled (eDRX cycle negotiated = 4) , on carrier 1.

Foreseen final state of the MS

– MS is in packet idle mode, PEO enabled, on carrier 2.

20.22.32.2.5 Test procedure

a) On carrier 1 valid layer 3 messages shall be sent in the MS paging blocks, but not paging the MS (idle paging). On carrier 2 the MS is paged continuously in all paging blocks.

b) After 40 s the SS sends corrupted data (using random data, wrong parity bits see 3GPP TS 45.003, subclauses 4.3 and 4.1.2 or other lower layer error) in 8 successive PCH paging occasions to carrier 1 and then reverts to sending normal data.

NOTE 1: Sending corrupted, i.e. non-decodable data on 8 successive paging blocks should decrease the PCH_DSC to 2.

NOTE 2: The first occurrence of the PCH occasion is the MS paging block based on the eDRX cycle negotiated with the SS, the following 7 occurrences based on the lowest eDRX cycle (as per Conformance Requirement). The 8 occurrences last for 64 51 MF (~15s).

c) After 2 min (PCH_DSC should be 6), the SS sends corrupted data in 7 successive paging blocks to carrier 1 and then reverts to sending normal data.

NOTE 3: Sending random, data on 6 successive paging blocks should decrease the PCH_DSC to < 0 and cause a cell reselection.

NOTE 4: The first occurrence of the PCH occasion is the MS paging block based on the eDRX cycle negotiated with the SS, the following 6 occurrences based on the lowest eDRX cycle (as per Conformance Requirement). The 7 occurrences last for 56 51 MF (~13s).

20.22.32.2.6 Test Requirements

1) After step a) or b) there should be no response form MS on carrier 2

2) After step c) there should be a response on carrier 2 within 30 s.

20.22.32.2.7 Maximum duration of the test

5 minutes

20.22.32.3 PEO Reduced Monitoring – Reselection based on RCC change

20.22.32.3.1 Conformance requirement

An MS that has enabled PEO or that supports PEO and that is attempting to decode the Base Station Identity Code (BSIC), shall use the 9 bit BSIC consisting of the 6 bit BSIC field transmitted in the SCH and the 3 bit Radio frequency Colour Code (RCC) field transmitted in System Information and AGCH /PCH (see 3GPP TS 44.018 and 3GPP TS 23.003), for later BSIC verification, see sub-clause 7.2.1.

20.22.32.3.2 References

3GPP TS 45.008, subclauses 6.1

3GPP TS 45.008, subclauses 6.1

20.22.32.3.3 Test Purpose

To verify that an MS that has enabled PEO, in packet idle mode, supports a reduced monitoring:

– C1_DELTA could trigger a reselection

– C1a value (Best C1 value on that cell) is updated to compare it with C1_DELTA

– C1_DELTA is updated with neighbour cell measurements

20.22.32.3.4 Method of test

Initial conditions

System simulator:

Parameters changed from the default values in table 20.22.1.

Cell 1 is activated, Cell 2 and Cell 3 are not. Cell 2 and Cell 1 have the same AFRCN and the same 6 bit BSIC (NCC+BCC) and similar content in the EC-SCH.

Parameter

Cell 1

Cell 2

Cell 3

Carrier1

Carrier2

Carrier3

Channel Type carried

BCCH

BCCH

BCCH

RF Signal (dBm)

-90

-80

-60

CBA

0

0

0

RXLEV_ACCESS_MIN (dBm)

-100

-100

-100

C1_DELTA_MIN

3 dBm

3 dBm

3 dBm

C1_DELTA_MAX

9 dBm

9 dBm

9 dBm

RCC

0

1

1

C1

10

20

40

Mobile station:

– MS is in packet idle mode, PEO enabled, on carrier 1, eDRX cycle negotiated to 0111 (3.25min)

Foreseen final state of the MS”

– MS is in packet idle mode, PEO enabled, on carrier 3.

20.22.32.3.7 Test procedure

a) The SS pages the MS on carrier 1 (RF at -90 dBm),

b) After 3 min, carrier 1 is deactivated and carrier 2 and 3 are activated and SS pages continuously the MS on both activated carriers

20.22.32.3.8 Test Requirements

1) After step a), the MS should answers the paging on carrier 1

2) After step b), the MS should answer the paging on carrier 3within 2 min.

NOTE: The MS would identify the RCC BSIC change on the Cell1 / Cell2 ARFCN and will trigger reselection measurements and select Cell3 and the best suitable Cell.

20.22.33 EC-GSM-IoT Reduced Monitoring

20.22.33.1 EC-GSM-IoT Reduced Monitoring – Cell selection

20.22.33.1.1 Conformance requirement

An EC-GSM-IoT capable MS shall perform EC-GSM-IoT cell selection based on RLA_EC (see subclause 6.9). In case the MS also supports GPRS services using GPRS or EGPRS TBFs, non EC-GSM-IoT cell selection shall be based on RLA_GC (see subclause 6.9a). Therefore, following the RLA_C measurements described above, the MS shall perform a second search of the RF channels within its bands of operation, and measure:

  • RLA_EC for the strongest EC-BCCH carrier, which might include the evaluation of several different carriers, on each RF channel that supports EC-GSM-IoT.
  • RLA_GC for the strongest BCCH carrier on each RF channel that does not support EC-GSM-IoT, in case the MS supports GPRS or EGPRS TBFs.

The cell selected as a result of performing the cell selection procedure shall be the suitable cell (see 3GPP TS 43.022 [11]) with the highest measured value (i.e., RLA_EC or RLA_GC, whichever is applicable). When measuring candidate cells during the selection procedure, RLA_EC and RLA_GC measurements may be omitted (and the corresponding cells not considered for cell selection) for those candidate cells for which the measured RLA_C is more than CELL_SELECTION_RLA_MARGIN dB below the measured RLA_EC or RLA_GC of the best candidate cell identified to that point in the cell selection procedure. CELL_SELECTION_ RLA_MARGIN is broadcast in EC SI in cells supporting EC-GSM-IoT, and in SI in cells not supporting EC-GSM-IoT, see 3GPP TS 44.018 [17].

An EC-GSM-IoT capable MS performing measurements for cell selection on an EC-GSM-IoT capable cell shall search for frequency correction bursts and synchronization bursts carrying EC-SCH when identifying BCCH carriers, see subclause 6.9. Before selecting a BCCH carrier, the MS shall attempt to synchronize to it and read the EC-BCCH data. An EC-GSM-IoT capable MS attempting to synchronize to a BCCH carrier in search for an EC-GSM-IoT cell may assume that the cell is a non EC-GSM-IoT cell if no successful decoding of EC-SCH has been done within [2] s.

An EC-GSM-IoT capable MS shall be able to synchronize to the BCCH carrier of an EC-GSM-IoT cell within [2] s at reference sensitivity level. The maximum time allowed to read the EC-BCCH data, when being synchronized to a BCCH carrier of an EC-GSM-IoT cell, is [12] s or equal to the scheduling period for the EC-BCCH data, whichever is greater (see 3GPP TS 45.002 [22]) in ideal radio conditions. The MS is allowed to camp on a cell and access the cell after decoding all relevant EC-BCCH data.

20.22.33.1.2 References

3GPP TS 45.008, subclauses 6.2

20.22.33.1.3 Test Purpose

To verify that an EC-GSM-IoT and GPRS capable MS, is able to properly select a suitable cell after boot or waking up from a power saving state, independently of the support of EC capability on the Cell target for selection.

20.22.33.1.4 Method of test

Initial conditions

System simulator:

Parameters changed from the default values in table 20.22.1 and 20.22.2.

Parameters:

3 Cells, Cell 1 with GPRS only, Cell 2 with GPRS and EC-GSM-IoT, Cell 3 with EC-GSM-IoT only.

Parameter

Cell 1

Cell 2

Cell 3

Carrier1

Carrier2

Carrier3

BCCH

BCCH/EC-BCCH

BCCH/EC-BCCH

RF Signal (dBm)

-80

-70

-60

CBA (BCCH)

0

0

1

CELL_SELECTION_RLA_MARGIN (dB)

24

24

24

RXLEV_ACCESS_MIN (dBm)

-100

-100

-100

EC_RXLEV_ACCESS_MIN (dBm)

-110

-110

C1_GC *Note2

20

5 *Note1

15 *Note1

C1_EC

40

50

NOTE 1: Cell 2 and 3: Downregulate TS0, except FCCH, by 25 dB and EC-CCCH (TS1) by 25 dB.

NOTE 2: C1_GC shall not be calculated by the MS, it is given as indication.

NOTE 3: Cell 1: Downregulate TS1 to TS7 by 25 dB.

Mobile station:

– EC-GSM-IoT MS is powered Off

Foreseen final state of the MS:

– MS is in packet idle mode, camped on carrier 2

20.22.33.1.5 Test procedure

a) MS is powered on with all cells activated

b) MS is powered off

c) Carrier 3 is deactivated

d) MS is powered on

20.22.33.1.6 Test Requirements

1) After step a), there should be an EC-RACH access on carrier 3 within 45 sec.

2) After step d) there should be a RACH access or EC-RACH access on Cell 2 within 45 sec.

20.22.33.1.7 Maximum duration of the test

3 minutes

20.22.33.2 EC-GSM-IoT Reduced Monitoring – Reselection based on C1_DELTA and Downlink Signalling Failure

20.22.33.2.1 Conformance requirement

The MS shall proceed as described in sub-clause 6.6.1a.4 if any of the following criteria are fulfilled:

– Cell selection has been completed and monitoring of non-serving cells for cell reselection has not yet been performed;

– C1 ≤ 0;

– A change in BSIC is detected;

– A downlink signalling failure is declared;

– C1a – C1b > C1_DELTA; or

– More than 24 hours have passed since the last evaluation of C1 and C2 of non-serving cells.

The MS need not monitor the BCCH carriers of the non-serving cells as long as none of these criteria are fulfilled.

[…]

For a MS that has enabled EC operation downlink signalling failure is declared if the MS fails to decode EC-SCH within [2.5] seconds during an attempt to synchronize to a cell (i.e. neither DSC nor PEO_DSC are used). A MS that has enabled EC operation shall use a non-DRX mode period of zero seconds.

A downlink signalling failure shall result in the MS performing the cell reselection procedure (i.e. if a better cell is found it is used).

20.22.33.2.2 References

3GPP TS 45.008, subclauses 6.5 and 6.6.1a.3

20.22.33.2.3 Test Purpose

To verify that an MS that has enabled EC-GSM-IoT, in packet idle mode, supports a reduced monitoring:

– C1_DELTA could trigger a reselection

– A reselection is done on downlink signalling failure

NOTE: For C1_DELTA fine testing, please refer to 20.22.32.1

20.22.33.2.4 Method of test

Initial conditions

System simulator:

Parameters changed from the default values in table 20.22.1 and 20.22.2

Parameters:

3 Cells, Cell 1 with GPRS only, Cell 2 with GPRS and EC-GSM-IoT, Cell 3 with EC-GSM-IoT Only.

Parameter

Cell 1

Cell 2

Cell 3

Carrier1

Carrier2

Carrier3

BCCH

BCCH / EC-BCCH

BCCH / EC-BCCH

RF Signal (dBm)

-80

-70

-50

CBA (BCCH)

0

0

1

CELL_SELECTION_RLA_MARGIN (dB)

24

24

24

RXLEV_ACCESS_MIN (dBm)

-100

-100

-100

EC_RXLEV_ACCESS_MIN (dBm)

-110

-110

C1_DELTA_MIN

3

3

3

C1_DELTA_MAX

9

6

15

C1_GC *Note2

20

5 *Note1

25 *Note1

C1_EC

40

60

C2_GC

-80

-70

-50

C2_EC

-70

-50

NOTE 1: Cell 2 and 3: Downregulate TS0 by 25 dB and EC-CCCH (TS1) by 25 dB.

NOTE 2: C1_GC shall not be calculated by the MS, it is given as indication.

NOTE 3: Cell 1: Downregulate TS1 to TS7 by 25 dB.

Mobile station:

– EC-GSM-IoT MS in packet-idle mode on Carrier 3, eDRX cycle negotiated to 0000 (1.9s)

Foreseen final state of the MS:

– MS is in packet idle mode, camped on carrier 3.

20.22.33.2.5 Test procedure

a) MS is paged continuously on Carrier 1 / 2 , EC-SCH of carrier 3 is corrupted by SS for 1 min.

b) After 1 min, the RF level of carrier 1 is increased to -60 dBm, MS is paged continuously on Carrier 1 and 3

c) After 2 min, the RF level of carrier 2 is decreased to -85 dBm.

20.22.33.2.6 Test Requirements

1) After step a), there should be an EC-RACH access on carrier 2 within 45 sec.

2) After step b), there should be no access on any carrier (MS remains camped on Cell2)

2) After step c) there should be an EC-RACH access on carrier 3 within 45 sec.

NOTE: The reselection measurement trigger is based on C1_DELTA as C1 as reduced of 15 and C1a – C1b > C1_DELTA.

20.22.33.2.7 Maximum duration of the test

5 minutes