7.3.9 PDCP V2X Sidelink Communication

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

7.3.9.1 PDCP SDU transmission/ V2X Sidelink Communication/ No Confidentiality Protection for both Non-IP type and IP type

7.3.9.1.1 Test Purpose (TP)

(1)

with { UE served by E-UTRAN PLMN supporting V2X sidelink communication }

ensure that {

when { the UE sends an non-IP type PDCP Data PDU for SLRB }

then { there is not header compression and no confidentiality protection for non-IP type PDCP Data PDU }

}

(2)

with { UE served by E-UTRAN PLMN supporting V2X sidelink communication }

ensure that {

when { the UE sends an IP type PDCP Data PDU for SLRB }

then { there is no confidentiality protection for IP type PDCP Data PDU }

}

7.3.9.1.2 Conformance requirements

References: The conformance requirements covered in the current TC are specified in: TS 36.323 subclause 6.3.14.

[TS 36.323, clause 4.4.1.1.1]

SDU Type

Length: 3 bits

PDCP SDU type, i.e. Layer-3 Protocol Data Unit type as specified in [14]. PDCP entity may handle the SDU differently per SDU Type, e.g. header compression is applicable to IP SDU but not ARP SDU and Non-IP SDU.

Table 6.3.14.1: SDU Type

Bit

Description

000

IP

001

ARP

010

PC5 Signalling

011

Non-IP

100-111

reserved

7.3.9.1.3 Test description

7.3.9.1.3.1 Pre-test conditions

System Simulator:

SS-NW

– Cell 1

– System information combination 29 as defined in TS 36.508 [18] clause 4.4.3.1 is used in E-UTRA Cell 1.

SS-UE

– SS-UE1: as defined in TS 36.508 [18], configured for and operating as V2X sidelink Communication Reception on the resources which the UE is expected to use for transmission.

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])

Table 7.3.9.1.3.1-1: 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

EF_V2X_CONFIG

SL-V2X-Preconfiguration field as defined as per TS 36.508 [18] clause 4.9.3.4

Preamble:

– The UE is registered, Idle Mode, UE Test Mode Activated, UE Test Mode E Activated (state 2A) according to [18] on Cell 1 with the RLC UM bearer configured for PDCP SN size for SLRBs (16 bits).

7.3.9.1.3.2 Test procedure sequence

Table 7.3.9.1.3.2-1: Main behaviour

St

Procedure

Message Sequence

TP

Verdict

U – S

Message

1

Force the UE upper layer application to request transmission of non-IP type V2X sidelink communication (e.g. using an MMI command).

–

–

–

–

1A

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

–

–

1B

The UE responds with CLOSE UE TEST LOOP COMPLETE.

–>

CLOSE UE TEST LOOP COMPLETE

–

–

2

Check: Does the UE sends non-IP type STCH PDCP SDU packets?

SS UE extracts the contained SDU type, PGK Index, PTK Identity value.

–>

STCH PDCP SDU packet

(Received by simulated UE)

with PGK Identity, PTK Identity and Counter set to zero, SDU type set to ‘011’

1

P

3

Force the UE upper layer application to request transmission of IP type V2X sidelink communication (e.g. using an MMI command).

–

–

–

–

4

Check: Does the UE sends IP type STCH PDCP SDU packets?

SS UE extracts the contained SDU type, PGK Index, PTK Identity value.

–>

STCH PDCP SDU packet

(Received by simulated UE)

with PGK Identity, PTK Identity and Counter set to zero, SDU type set to ‘000’

2

P

5

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

<–

OPEN UE TEST LOOP

–

–

6

The UE transmits an OPEN UE TEST LOOP COMPLETE message.

–>

OPEN UE TEST LOOP COMPLETE

–

–

7

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

<–

DEACTIVATE TEST MODE

–

–

8

The UE transmits a DEACTIVATE TEST MODE COMPLETE message.

–>

DEACTIVATE TEST MODE COMPLETE

–

–

7.3.9.1.3.3 Specific message contents

Table 7.3.9.1.3.3-1: SystemInformationBlockType21 for Cell 1

Derivation Path: 36.508 [18], table 4.4.3.3-19

Information Element

Value/remark

Comment

Condition

SystemInformationBlockType21-r14 ::= SEQUENCE {

v2x-CommTxPoolNormalCommon-r14 SEQUENCE (SIZE (1..maxSL-V2X-TxPool-r14)) OF SL-CommResourcePoolV2X-r14 {

1 entry

SL-CommResourcePoolV2X-r14[1]

SL-CommResourcePoolV2X-r14-DEFAULT using conditions BITMAP_1 and COND_TX

}

}