6.5 PC5 RRC messages

36.3313GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Protocol specificationRadio Resource Control (RRC)Release 15TS

NOTE: The messages included in this clause reflect the current status of the discussions. Additional messages may be included at a later stage.

6.5.1 General message structure

PC5-RRC-Definitions

This ASN.1 segment is the start of the PC5 RRC PDU definitions.

— ASN1START

PC5-RRC-Definitions DEFINITIONS AUTOMATIC TAGS ::=

BEGIN

IMPORTS

TDD-ConfigSL-r12

FROM EUTRA-RRC-Definitions;

— ASN1STOP

SBCCH-SL-BCH-Message

The SBCCH-SL-BCH-Message class is the set of RRC messages that may be sent from the UE to the UE via SL-BCH on the SBCCH logical channel.

— ASN1START

SBCCH-SL-BCH-Message ::= SEQUENCE {

message SBCCH-SL-BCH-MessageType

}

SBCCH-SL-BCH-MessageType ::= MasterInformationBlock-SL

— ASN1STOP

SBCCH-SL-BCH-Message-V2X

The SBCCH-SL-BCH-Message-V2X class is the set of RRC messages that may be sent from the UE to the UE via SL-BCH on the SBCCH logical channel for V2X sidelink communication.

— ASN1START

SBCCH-SL-BCH-Message-V2X-r14 ::= SEQUENCE {

message SBCCH-SL-BCH-MessageType-V2X-r14

}

SBCCH-SL-BCH-MessageType-V2X-r14 ::= MasterInformationBlock-SL-V2X-r14

— ASN1STOP

6.5.2 Message definitions

MasterInformationBlock-SL

The MasterInformationBlock-SL includes the information transmitted by a UE transmitting SLSS, i.e. acting as synchronisation reference, via SL-BCH.

Signalling radio bearer: N/A

RLC-SAP: TM

Logical channel: SBCCH

Direction: UE to UE

MasterInformationBlock-SL

— ASN1START

MasterInformationBlock-SL ::= SEQUENCE {

sl-Bandwidth-r12 ENUMERATED {

n6, n15, n25, n50, n75, n100},

tdd-ConfigSL-r12 TDD-ConfigSL-r12,

directFrameNumber-r12 BIT STRING (SIZE (10)),

directSubframeNumber-r12 INTEGER (0..9),

inCoverage-r12 BOOLEAN,

reserved-r12 BIT STRING (SIZE (19))

}

— ASN1STOP

MasterInformationBlock-SL field descriptions

directFrameNumber

Indicates the frame number in which SLSS and SL-BCH are transmitted. The subframe in the frame corresponding to directFrameNumber is indicated by directSubframeNumber.

inCoverage

Value TRUE indicates that the UE transmitting the MasterInformationBlock-SL is in E-UTRAN coverage.

sl-Bandwidth

Parameter: transmission bandwidth configuration. n6 corresponds to 6 resource blocks, n15 to 15 resource blocks and so on.

MasterInformationBlock-SL-V2X

The MasterInformationBlock-SL-V2X includes the information transmitted by a UE transmitting SLSS, i.e. acting as synchronisation reference, via SL-BCH for V2X sidelink communication.

Signalling radio bearer: N/A

RLC-SAP: TM

Logical channel: SBCCH

Direction: UE to UE

MasterInformationBlock-SL-V2X

— ASN1START

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

sl-Bandwidth-r14 ENUMERATED {

n6, n15, n25, n50, n75, n100},

tdd-ConfigSL-r14 TDD-ConfigSL-r12,

directFrameNumber-r14 BIT STRING (SIZE (10)),

directSubframeNumber-r14 INTEGER (0..9),

inCoverage-r14 BOOLEAN,

reserved-r14 BIT STRING (SIZE (27))

}

— ASN1STOP

MasterInformationBlock-SL-V2X field descriptions

directFrameNumber

Indicates the frame number in which SLSS and SL-BCH for V2X sidelink communication are transmitted. The subframe in the frame corresponding to directFrameNumber is indicated by directSubframeNumber.

inCoverage

Value TRUE indicates that the UE transmitting the MasterInformationBlock-SL-V2X for V2X sidelink communication is in E-UTRAN coverage.

sl-Bandwidth

Parameter: transmission bandwidth configuration. n6 corresponds to 6 resource blocks, n15 to 15 resource blocks and so on.

– End of PC5-RRC-Definitions

— ASN1START

END

— ASN1STOP