Table of Contents for TS 23.285 Word version: 19.0.0

Scope p. 6

References p. 6

Definitions and abbreviations p. 7

3.1	Definitions p. 7
3.2	Abbreviations p. 8

Architecture model and concepts p. 8

4.1

General concept p. 8

4.2

Architectural reference model p. 9

4.2.1

PC5 and LTE-Uu based V2X architecture reference model p. 9

4.2.1.1	Non-roaming architecture for PC5 and LTE-Uu based V2X communication p. 9
4.2.1.2	Roaming architecture for PC5 and LTE-Uu based V2X communication p. 9
4.2.1.3	Inter-PLMN architecture for PC5 and LTE-Uu based V2X communication p. 10

4.2.2

MBMS for LTE-Uu based V2X architecture reference model p. 11

4.2.3

Reference points p. 12

4.3

Functional entities p. 13

4.3.1

V2X Control Function p. 13

4.3.1.1	General p. 13
4.3.1.2	V2X Control Function discovery p. 13

4.3.2

UE p. 13

4.3.3

V2X Application Server p. 14

MME p. 14

BM-SC p. 14

MBMS-GW p. 14

High level function p. 15

4.4.1

Authorization and Provisioning for V2X communications p. 15

4.4.1.1

Authorization and provisioning for V2X communications over PC5 reference point p. 15

4.4.1.1.1	General p. 15
4.4.1.1.2	Policy/Parameter provisioning p. 15
4.4.1.1.3	Principles for applying parameters for V2X communications over PC5 reference point p. 16

4.4.1.2

Authorization and provisioning for V2X communications over LTE-Uu reference point p. 17

4.4.1.2.1	General p. 17
4.4.1.2.2	Policy/Parameter provisioning p. 17

4.4.2

V2X message transmission/reception over PC5 reference point p. 18

4.4.3

V2X message transmission/reception over LTE-Uu reference point p. 19

4.4.3.1	General p. 19
4.4.3.2	V2X message transmission/reception via unicast p. 19
4.4.3.3	V2X message reception via MBMS p. 19

4.4.4

V2X Application Server discovery p. 20

4.4.4.1	General p. 20
4.4.4.2	Multiple V2X Application Server and Localized V2X Application Server discovery and routing p. 20

4.4.5

QoS handling for V2X communication p. 20

4.4.5.1	QoS handling for V2X communication over PC5 reference point p. 20
4.4.5.1a	QoS handling for V2X communication over NR PC5 reference point \|R16\| p. 21
4.4.5.2	QoS handling for V2X communication over LTE-Uu reference point p. 21

4.4.6

Subscription to V2X services p. 21

4.4.7

MBMS bearer announcement for V2X use p. 22

4.4.7.1	General p. 22
4.4.7.2	User Service Description for V2X Communication (V2X USD) p. 22
4.4.7.3	User Service Description for V2X Application Server Discovery (V2X Server USD) p. 22

4.4.8

Support for V2X communication for UEs in limited service state p. 23

4.4.9

Charging support for V2X communication p. 23

4.4.9.1	Charging support for V2X communication over PC5 reference point p. 23
4.4.9.2	Charging support for V2X communication over LTE-Uu reference point p. 24

4.4.10

Security and privacy protection support for V2X communication p. 24

4.5

Identifiers p. 24

4.5.1

Identifiers for V2X communication over PC5 reference point p. 24

Functional description and information flows p. 24

5.1

Control and user plane stacks p. 24

5.1.1

User plane for PC5 reference point supporting V2X services p. 24

5.2

Service authorization and update for V2X communications p. 25

5.2.1	Service authorization procedures p. 25
5.2.2	Service authorization update procedures p. 25

5.3

Procedure for V2X communication over PC5 reference point p. 25

5.4

Procedure for V2X communication over LTE-Uu reference point p. 25

5.4.1

V2X Application Server discovery using MBMS p. 25

5.4.1.1	General p. 25
5.4.1.2	Procedures for receiving V2X Application Server information via MBMS p. 26

5.4.2

Procedure for V2X communication with MBMS p. 26

5.4.2.1

MBMS service area mapping p. 26

5.4.2.1.1	General p. 26
5.4.2.1.2	Functional Description p. 27

5.4.2.2

Local MBMS based MBMS data delivery p. 27

5.5

V2X impacts to EPC procedures p. 29

5.5.1	E-UTRAN attach procedure for UE p. 29
5.5.2	Service Request procedures for UE p. 29
5.5.3	S1 Handover procedures for UE p. 29
5.5.4	X2 Handover procedures for UE p. 30
5.5.5	Tracking Area Update procedure for UE p. 30
5.5.6	Insert Subscriber Data procedure for UE p. 30
5.5.7	Delete Subscriber Data procedure for UE p. 30
5.5.8	V2X capability indication and V2X related information per PC5 RAT \|R16\| p. 30
5.5.9	Support of V2X communication over NR PC5 reference point \|R16\| p. 30

Road Side Unit (RSU) implementation options p. 32

Localized MBMS deployment options p. 33

B.1	General Description p. 33
B.2	Option of localized MBMS CN functions p. 33
B.3	Option of localized user plane of MBMS CN functions p. 34

Example hybrid operation modes for V2X communication over PC5 and LTE-Uu p. 35

C.1	General p. 35
C.2	PC5 based V2X communication with MBMS reception p. 35
C.3	Simultaneous LTE-Uu based and PC5 based V2X communication without MBMS p. 35

V2X Message Distribution Server deployment option p. 37

D.1	General Description p. 37

Change history p. 38