24.3.1 V2X Uplink Communication / UE in RRC_Connected on an E-UTRAN cell / Utilisation of the UL SPS resources configured by eNB / 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

24.3.1.1 Test Purpose (TP)

(1)

with { UE in E-UTRA RRC_CONNECTED state and configured to provide SPS assistance information }

ensure that {

when { UE prefers a SPS configuration}

then { the UE sends sps-AssistanceInformation in the message UEAssistanceInformation }

}

(2)

with { UE in E-UTRAN RRC CONNECTED state on a cell }

ensure that {

when { UE receives an RRCConnectionReconfiguration message containing sps-Config-v1430 to setup SPS configuration}

then { UE transmits data using the configured SPS resources }

}

(3)

with { UE in E-UTRAN RRC CONNECTED state on a cell }

ensure that {

when { UE receives an RRCConnectionReconfiguration message containing sps-Config-v1430 to release SPS configuration}

then { UE stops data transmission using the configured SPS resources }

}

24.3.1.2 Conformance requirements

References: The conformance requirements covered in the present TC are specified in: TS 36.331, clause 5.6.10.2 and 5.3.10.5, TS 23.285, clause 4.4.5.2.

[TS 36.331, clause 5.6.10.2]

A UE capable of providing SPS assistance information in RRC_CONNECTED may initiate the procedure in several cases including upon being configured to provide SPS assistance information and upon change of SPS assistance information.

Upon initiating the procedure, the UE shall:

1> if configured to provide SPS assistance information:

2> if the UE did not transmit a UEAssistanceInformation message with sps-AssistanceInformation since it was configured to provide SPS assistance information; or

2> if the current SPS assistance information is different from the one indicated in the last transmission of the UEAssistanceInformation message:

3> initiate transmission of the UEAssistanceInformation message in accordance with 5.6.10.3;

[TS 36.331, clause 5.3.10.5]

The UE shall:

1> reconfigure the semi-persistent scheduling in accordance with the received sps-Config;

[TS 23.285, clause 4.4.5.2]

The V2X messages can be delivered via Non-GBR bearer as well as GBR bearer.

The following standardized QCI values defined in TS 23.203 [12] can be used:

– QCI 3 and QCI 79 can be used for the unicast delivery of V2X messages;

24.3.1.3 Test description

24.3.1.3.1 Pre-test conditions

System Simulator:

– Cell 1

UE:

– E-UTRAN UE supporting V2X communication Via Uu.

Preamble:

– The UE is in state Loopback Activated (state 4) according to [18] using UE test loop mode A.

– The condition SRB2-DRB(1,1) is used for step 8 in 4.5.3A.3 according to [18] except for those listed in Table 24.3.1.3.3-4.

– The loop back size is set in such a way that one RLC SDU in DL shall result in 1 RLC SDU’s in UL of same size.

24.3.1.3.2 Test procedure sequence

Table 24.3.1.3.2-1: Main behaviour

St

Procedure

Message Sequence

TP

Verdict

U – S

Message

1

Trigger the UE to send UEAssistanceInformation message to request UL SPS grant for V2X communication over LTE-Uu from eNB.

(Note)

2

Check: Does the UE send a UEAssistanceInformation message within the next 20s?

–>

UEAssistanceInformation

1

P

3

The SS transmits an RRCConnectionReconfiguration message containing a sps-Config-v1430

<–

RRCConnectionReconfiguration

4

The UE transmits an RRCConnectionReconfigurationComplete message.

–>

RRCConnectionReconfigurationComplete

5

The SS transmits a DL MAC PDU containing 10 RLC SDU’s on UM DRB.

<–

MAC PDU

6

The UE transmits a Scheduling Request, indicating that loop back PDUs are ready for transmission in UL RLC

–>

(SR)

7

The SS transmits an UL Grant using UE’s ul-SPS-V-RNTI in SF-Num ‘4’, NDI=0, ‘UL SPS configuration index’ set to ’000’B (i.e. sps-ConfigIndex-r14=1), allowing the UE to transmit one loop back PDU per MAC PDU.

<–

(UL SPS Grant)

8

Check: Does the UE transmit a MAC PDU in SF-Num ‘8’ as per grant in step 7?

–>

MAC PDU

2

P

9

The SS transmits a HARQ ACK

<–

HARQ ACK

10

Check: Does the UE transmit a MAC PDU in SF-Num ‘108(FDD)/107(TDD)’ as per grant in step 7?

–>

MAC PDU

2

P

11

The SS transmits a HARQ ACK

<–

HARQ ACK

12

The SS transmits an UL Grant using UE’s ul-SPS-V-RNTI in SF-Num ‘124’, NDI=0, ‘UL SPS configuration index’ set to ’001’B (i.e. sps-ConfigIndex-r14=2), allowing the UE to transmit one loop back PDU per MAC PDU.

<–

(UL SPS Grant)

13

Check: Does the UE transmit a MAC PDU in SF-Num ‘128’ as per grant in step 12?

–>

MAC PDU

2

P

14

The SS transmits a HARQ ACK

<–

HARQ ACK

15

Check: Does the UE transmit a MAC PDU in SF-Num ‘178(FDD)/177(TDD)’ as per grant in step 12?

–>

MAC PDU

2

P

16

The SS transmits a HARQ ACK

<–

HARQ ACK

17

Check: Does the UE transmit a MAC PDU in SF-Num ‘208(FDD)/207(TDD)’ as per grant in step 7?

–>

MAC PDU

2

P

18

The SS transmits a HARQ ACK

<–

HARQ ACK

19

SS Transmits RRCConnectionReconfiguration to disable SPS-ConfigurationUL.

<–

20

The UE transmits RRCConnectionReconfigurationComplete

–>

21

Check: Does the UE transmit a MAC PDU in SF-Num ‘228 (FDD)/227(TDD)’ as per grant in step 12?

–>

MAC PDU

3

F

22

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

<–

OPEN UE TEST LOOP

23

The UE transmits an OPEN UE TEST LOOP COMPLETE message.

–>

OPEN UE TEST LOOP COMPLETE

24

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

<–

DEACTIVATE TEST MODE

25

The UE transmits a DEACTIVATE TEST MODE COMPLETE message.

–>

DEACTIVATE TEST MODE COMPLETE

Note: This indication may be triggered with the AT command(+CSPSAIR) with interface ="0".

24.3.1.3.3 Specific message contents

Table 24.3.1.3.3-1: UEAssistanceInformation (Step 2)

Derivation path: 36.508 Table 4.6.1-26, conditions Normal

Information Element

Value/remark

Comment

Condition

UEAssistanceInformation-r11 ::= SEQUENCE {

criticalExtensions CHOICE {

c1 CHOICE{

UEAssistanceInformation-r11-IEs SEQUENCE {

nonCriticalExtension SEQUENCE {

sps-AssistanceInformation-r14 SEQUENCE {

trafficPatternInfoListSL-r14

Not checked

trafficPatternInfoListUL-r14 SEQUENCE (SIZE (1..maxTrafficPattern-r14)) OF SEQUENCE{

trafficPeriodicity-r14

Not checked

timingOffset-r14

Not checked

logicalChannelIdentityUL-r14

Not checked

messageSize-r14

Not checked

}

}

DelayBudgetReport-r14

Not Present

}

}

}

}

}

Table 24.3.1.3.3-2: RRCConnectionReconfiguration. RadioResourceConfigDedicated (Step 3)

Derivation path: 36.508 table 4.6.3-16

Information Element

Value/remark

Comment

Condition

RadioResourceConfigDedicated::= SEQUENCE {

sps-Config-v1430 ::= SEQUENCE {

ul-SPS-V-RNTI-r14

‘1034’H

sps-ConfigUL-ToAddModList-r14 SEQUENCE (SIZE (1..maxConfigSPS-r14)) SEQUENCE {

SPS-ConfigUL[1] ::= CHOICE {

setup SEQUENCE {

semiPersistSchedIntervalUL

sf40

40 Subframe

implicitReleaseAfter

e4

p0-Persistent

Not Present

twoIntervalConfig

Not Present

sps-ConfigIndex-r14

1

semiPersistSchedIntervalUL-v1430

sf100

100 Subframe

}

}

SPS-ConfigUL[2] ::= CHOICE {

setup SEQUENCE {

semiPersistSchedIntervalUL

sf40

40 Subframe

implicitReleaseAfter

e4

p0-Persistent

Not Present

twoIntervalConfig

Not Present

sps-ConfigIndex-r14

2

semiPersistSchedIntervalUL-v1430

sf50

50 Subframe

}

}

}

}

}

Table 24.3.1.3.3-3: RRCConnectionReconfiguration. RadioResourceConfigDedicated (step 19 of table 24.3.1.3.2-1)

Derivation path: 36.508 table 4.6.3-16

Information Element

Value/remark

Comment

Condition

RadioResourceConfigDedicated::= SEQUENCE {

sps-Config-v1430 ::= SEQUENCE {

ul-SPS-V-RNTI-r14

‘1034’H

sps-ConfigUL-ToReleaseList-r14 SEQUENCE (SIZE (1..maxConfigSPS-r14)) OF SEQUENCE {

SPS-ConfigIndex-r14[1]

1

SPS-ConfigIndex-r14[2]

2

}

}

}

Table 24.3.1.3.3-4: ACTIVATE DEDICATED EPS BEARER CONTEXT REQUEST (preamble)

Derivation path: 36.508 Table 4.7.3-3

Information Element

Value/Remark

Comment

Condition

EPS QoS

According to reference dedicated EPS bearer context #7 – in TS 36.508 table 6.6.2-1A