24.1.20 V2X Sidelink Communication / Pre-configured authorisation / UE in limited service state on the anchor carrier frequency provisioned for V2X configuration / Transmission

36.523-13GPPEvolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Packet Core (EPC)Part 1: Protocol conformance specificationRelease 17TSUser Equipment (UE) conformance specification

24.1.20.1 Test Purpose (TP)

(1)

with { UE supporting V2X sidelink communication is authorized to use V2X communication over PC5 reference point }

ensure that {

when { UE in limited service state because of receiving a "PLMN not allowed" response to a registration request, and is triggered by an upper layer application to transmit V2X sidelink communication }

then { UE shall only use the radio resources and procedure available in IDLE mode for V2X communication }

}

(2)

with { UE supporting V2X sidelink communication is authorized to use V2X communication over PC5 reference point }

ensure that {

when { UE in limited service state because of receiving a "EPS services not allowed" response to a registration request, and is triggered by an upper layer application to transmit V2X sidelink communication }

then { UE shall only use the radio resources and procedure available in IDLE mode for V2X communication }

}

24.1.20.2 Conformance requirements

References: The conformance requirements covered in the current TC are specified in: TS 23.285, clauses 4.4.8.

[TS 23.285, clause 4.4.8]

For UE in limited service state, only V2X communication over PC5 is allowed.

UEs that are authorized to use V2X communication over PC5 reference point shall be able to use V2X communication over PC5 reference point when in limited service state following the principles defined in clause 4.4.1.1.3 for V2X communication over PC5 reference point when the UE enters in limited service state:

– because it cannot find a suitable cell of the selected PLMN as described in TS 23.122 [23] or

– as the result of receiving one of the following reject reasons defined in TS 23.122 [23]:

– a "PLMN not allowed" response to a registration request or;

– a "GPRS not allowed" response to a registration request

A UE in limited service state shall only use the radio resources and procedure available in ECM-IDLE mode for V2X communication over PC5 reference point, for details see TS 36.300 [10].

UEs shall not use V2X communication over PC5 reference point using the "operator-managed" radio resources, as specified in clause 4.4.1.1.2, if the UE has entered in limited service state due to all other situations (e.g. no SIM in the MS, an "illegal MS" or "illegal ME" response to a registration request, or an "IMSI unknown in HLR" response to a registration request) defined in TS 23.122 [23], where the UE is unable to obtain normal service from a PLMN. The UEs may use V2X communication over PC5 reference point using the "non-operator-managed" radio resources, as specified in clause 4.4.1.1.2, according to the principles defined in clause 4.4.1.1.3.

24.1.20.3 Test description

24.1.20.3.1 Pre-test conditions

System Simulator:

SS-NW

– Cell 1

Table 24.1.20.3.1-1: Cell parameters values

Cell

Frequency

PLMN

1

f1

HPLMN (PLMN1)

Note 1: The Frequency f1 shall be the anchor frequency pre-configured in the UE.

– System information combination 29 as defined in TS 36.508 [18] clause 4.4.3.1 is used in all active cells.

UE:

– V2X sidelink related configuration.

– The UE is authorised to perform V2X Sidelink Communication

– The UE is equipped with below information in UE or in a USIM containing default values (as per TS 36.508 [18]) except for those listed in Table 24.1.20.3.1-2.

Table 24.1.20.3.1-2: UE/ USIM configuration

USIM field

Priority

Value

Access Technology Identifier

EFUST

Service n°119 (V2X) supported

EFVST

As per TS 36.508 [18] clause 4.9.3.4

EFV2X_CONFIG

SL-V2X-Preconfiguration field as defined in Table 24.1.20.3.3-4

Preamble:

– The UE is in State Switched OFF (state 1) according to TS 36.508 [18].

24.1.20.3.2 Test procedure sequence

Table 24.1.20.3.2-1: Main behaviour

St

Procedure

Message Sequence

TP

Verdict

U – S

Message

1

The SS configures:

SS-NW

– Cell 1 transmits SystemInformationBlockType21

–

–

–

–

2

The UE is switched on.

–

–

–

–

3

UE transmits an RRCConnectionRequest message.

–>

RRC: RRCConnectionRequest

–

–

4

SS transmits an RRCConnectionSetup message.

<–

RRC: RRCConnectionSetup

–

–

5

The UE transmits an RRCConnectionSetupComplete message to confirm the successful completion of the connection establishment and to initiate the Attach procedure by including the ATTACH REQUEST message. The PDN CONNECTIVITY REQUEST message is piggybacked in ATTACH REQUEST

–>

RRC: RRCConnectionSetupComplete

NAS: ATTACH REQUEST

NAS: PDN CONNECTIVITY REQUEST

–

–

6

The SS transmits an ATTACH REJECT message with the EMM cause #11 "PLMN not allowed".

<–

RRC: DLInformationTransfer

NAS: ATTACH REJECT

–

–

7

The SS transmits an ACTIVATE TEST MODE message to activate UE radio bearer test mode procedure.

<–

RRC: DLInformationTransfer

TC: ACTIVATE TEST MODE

–

–

8

The UE transmits an ACTIVATE TEST MODE COMPLETE message.

–>

RRC: ULInformationTransfer

TC: ACTIVATE TEST MODE COMPLETE

–

–

9

Close UE Test Loop with bit E0 in UE test loop mode E LB setup IE set to one (transmission mode).

<–

CLOSE UE TEST LOOP

–

–

10

The UE responds with CLOSE UE TEST LOOP COMPLETE.

–>

CLOSE UE TEST LOOP COMPLETE

–

–

11

SS-NW releases the connection.

<–

RRCConnectionRelease

–

–

12

Check: Does the UE transmit STCH PDCP SDU packets of V2X sidelink communication data over the PC5 interface in accordance with the resources indicated in resource pool 1?

NOTE:1 The UE may send multiple packets. The reception of one of them is sufficient for achieving the Pass verdict.

NOTE 2: The structure of the data is not checked and it is just considered as octetstrings by the SS.

–>

STCH PDCP SDU packet

1

P

13

Steps 1 – 10a7 from the generic test procedure for Generic Radio Bearer Establishment (State 3) defined in TS 36.508 [18] clause 4.5.3 take place.

–

–

–

–

14

The SS transmits an OPEN UE TEST LOOP message to exit the UE test loop mode.

<–

OPEN UE TEST LOOP

–

–

15

The UE transmits an OPEN UE TEST LOOP COMPLETE message.

–>

OPEN UE TEST LOOP COMPLETE

–

–

16

The SS transmits a DEACTIVATE TEST MODE message to de-activate UE radio bearer test mode procedure.

<–

DEACTIVATE TEST MODE

–

–

17

The UE transmits a DEACTIVATE TEST MODE COMPLETE message.

–>

DEACTIVATE TEST MODE COMPLETE

–

–

18

The UE is switched off.

–

–

–

–

19

The UE is switched on.

–

–

–

–

20

UE transmits an RRCConnectionRequest message.

–>

RRC: RRCConnectionRequest

–

–

21

SS transmits an RRCConnectionSetup message.

<–

RRC: RRCConnectionSetup

–

–

22

The UE transmits an RRCConnectionSetupComplete message to confirm the successful completion of the connection establishment and to initiate the Attach procedure by including the ATTACH REQUEST message. The PDN CONNECTIVITY REQUEST message is piggybacked in ATTACH REQUEST

–>

RRC: RRCConnectionSetupComplete

NAS: ATTACH REQUEST

NAS: PDN CONNECTIVITY REQUEST

–

–

23

The SS transmits an ATTACH REJECT message with the EMM cause #7 " EPS services not allowed ".

<–

RRC: DLInformationTransfer

NAS: ATTACH REJECT

–

–

24

The SS transmits an ACTIVATE TEST MODE message to activate UE radio bearer test mode procedure.

<–

RRC: DLInformationTransfer

TC: ACTIVATE TEST MODE

–

–

25

The UE transmits an ACTIVATE TEST MODE COMPLETE message.

–>

RRC: ULInformationTransfer

TC: ACTIVATE TEST MODE COMPLETE

–

–

26

Close UE Test Loop with bit E0 in UE test loop mode E LB setup IE set to one (transmission mode).

<–

CLOSE UE TEST LOOP

–

–

27

The UE responds with CLOSE UE TEST LOOP COMPLETE.

–>

CLOSE UE TEST LOOP COMPLETE

–

–

28

SS-NW releases the connection.

<–

RRCConnectionRelease

–

–

29

Check: Does the UE transmit STCH PDCP SDU packets of V2X sidelink communication data over the PC5 interface in accordance with the resources indicated in resource pool 1?

NOTE:1 The UE may send multiple packets. The reception of one of them is sufficient for achieving the Pass verdict.

NOTE 2: The structure of the data is not checked and it is just considered as octetstrings by the SS.

–>

STCH PDCP SDU packet

2

P

30

Steps 1 – 10a7 from the generic test procedure for Generic Radio Bearer Establishment (State 3) defined in TS 36.508 [18] clause 4.5.3 take place.

–

–

–

–

31

The SS transmits an OPEN UE TEST LOOP message to exit the UE test loop mode.

<–

OPEN UE TEST LOOP

–

–

32

The UE transmits an OPEN UE TEST LOOP COMPLETE message.

–>

OPEN UE TEST LOOP COMPLETE

–

–

33

The SS transmits a DEACTIVATE TEST MODE message to de-activate UE radio bearer test mode procedure.

<–

DEACTIVATE TEST MODE

–

–

34

The UE transmits a DEACTIVATE TEST MODE COMPLETE message.

–>

DEACTIVATE TEST MODE COMPLETE

–

–

24.1.20.3.3 Specific message contents

Table 24.1.20.3.3-1: ATTACH REJECT (step 6, Table 24.1.20.3.2-1)

Derivation Path: 36.508 [18], table 4.7.2-3

Information Element

Value/remark

Comment

Condition

EMM cause

00001011

ESM message container

ESM DUMMY MESSAGE

CIoT_Attach_WithoutPDN

Table 24.1.20.3.3-2: ATTACH REJECT (step 16, Table 24.1.20.3.2-1)

Derivation Path: 36.508 [18], table 4.7.2-3

Information Element

Value/remark

Comment

Condition

EMM cause

00000111

ESM message container

ESM DUMMY MESSAGE

CIoT_Attach_WithoutPDN

Table 24.1.20.3.3-3: SL-V2X-Preconfiguration

Derivation Path: 36.508 [18], table 4.10.1.1-1

Information Element

Value/remark

Comment

Condition

SL-V2X-Preconfiguration-r14 ::= SEQUENCE {

anchorCarrierFreqList-r14 SEQUENCE (SIZE (1..maxFreq)) OF SEQUENCE {

1 entries

ARFCN-ValueEUTRA-r9[1]

f1 in TS 36.508 [18] clause 6.2.3.1

}

}