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