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TS 23.287 (SA2) ★
Architecture enhancements for 5GS
to support Vehicle-to-Everything (V2X) Services

use "3GPP‑Page" to get the Word version
for a better overview, the Table of Contents (ToC) is reproduced

V16.0.0 (Wzip) 2019/09 49 p.

Rapporteur: Dr. Kim, Laeyoung

The present document specifies architecture enhancements to the 5G System to facilitate vehicular communications for Vehicle-to-Everything (V2X) services, over the following reference points, based on service requirements defined in TS 22.185 and TS 22.186:

PC5 reference point: NR PC5 RAT, LTE PC5 RAT.
Uu reference point: NR, E-UTRA.

This specification also covers interworking with EPS.

full Table of Contents for TS 23.287 Word version: 16.0.0

1 Scope Word-p. 7

3 Definitions and abbreviations Word-p. 8

3.1 Definitions

3.2 Abbreviations

4 Architecture model and concepts Word-p. 9

4.1 General concept

4.2 Architectural reference model

4.2.1 PC5 and Uu based V2X architecture reference model

4.2.1.1 Non-roaming 5G System architecture for V2X communication over PC5 and Uu reference points

4.2.1.2 Roaming 5G System architecture for V2X communication over PC5 and Uu reference points Word-p. 10

4.2.1.3 Inter-PLMN 5G System architecture for V2X communication over PC5 reference point Word-p. 11

4.2.2 AF-based service parameter provisioning for V2X communications

4.2.3 Reference points Word-p. 12

4.2.4 Service-based interfaces

4.3 Architecture reference model for interworking with EPS V2X Word-p. 13

4.4 Functional entities

4.4.2 PCF Word-p. 14

4.4.3 V2X Application Server

5 High level functionality and features Word-p. 15

5.1 Authorization and Provisioning for V2X communications

5.1.2 Authorization and Provisioning for V2X communications over PC5 reference point

5.1.2.1 Policy/Parameter provisioning

5.1.2.2 Principles for applying parameters for V2X communications over PC5 reference point Word-p. 17

5.1.3 Authorization and provisioning for V2X communications over Uu reference point Word-p. 18

5.1.3.1 Policy/Parameter provisioning

5.2 V2X communication Word-p. 19

5.2.1 V2X communication over PC5 reference point

5.2.1.1 General

5.2.1.2 Broadcast mode communication over PC5 reference point

5.2.1.3 Groupcast mode communication over PC5 reference point

5.2.1.4 Unicast mode communication over PC5 reference point Word-p. 20

5.2.1.5 IP address allocation Word-p. 21

5.2.2 V2X communication over Uu reference point

5.2.2.1 V2X communication via unicast

5.2.3 V2X communication over PC5 or Uu reference point

5.2.3.1 General

5.3 V2X Application Server discovery Word-p. 22

5.3.2 Multiple V2X Application Server and Localized V2X Application Server discovery and routing

5.4 QoS handling for V2X communication Word-p. 23

5.4.1 QoS handling for V2X communication over PC5 reference point

5.4.1.1 QoS model

5.4.1.1.1 General overview

5.4.1.1.2 Deriving PC5 QoS parameters and assigning PFI for PC5 QoS Flow Word-p. 24

5.4.1.1.3 Handling of PC5 QoS Flows based on PC5 QoS Rules

5.4.1.1.4 PC5 Packet Filter Set Word-p. 25

5.4.1.2 QoS handling for broadcast mode V2X communication over PC5 reference point Word-p. 26

5.4.1.3 QoS handling for groupcast mode V2X communication over PC5 reference point

5.4.1.4 QoS handling for unicast mode V2X communication over PC5 reference point

5.4.2 PC5 QoS parameters

5.4.2.2 PC5 Flow Bit Rates

5.4.2.3 PC5 Link Aggregated Bit Rates Word-p. 27

5.4.2.5 Default Values

5.4.3 PC5 QoS characteristics

5.4.3.1 General

5.4.3.2 Resource Type Word-p. 28

5.4.3.3 Priority Level

5.4.3.4 Packet Delay Budget

5.4.3.5 Packet Error Rate

5.4.3.6 Averaging Window

5.4.3.7 Maximum Data Burst Volume

5.4.4 Standardized PQI to QoS characteristics mapping

5.4.5 QoS handling for V2X communication over Uu reference point Word-p. 30

5.4.5.1 General

5.4.5.2 Notification on QoS Sustainability Analytics to the V2X Application Server

5.4.5.2.1 General

5.4.5.2.2 Functional description

5.4.5.3 QoS Change based on Extended NG-RAN Notification to support Alternative Service Requirements

5.5 Subscription to V2X services Word-p. 31

5.6 Identifiers

5.6.1 Identifiers for V2X communication over PC5 reference point

5.6.1.1 General

5.6.1.2 Identifiers for broadcast mode V2X communication over PC5 reference point Word-p. 32

5.6.1.3 Identifiers for groupcast mode V2X communication over PC5 reference point

5.6.1.4 Identifiers for unicast mode V2X communication over PC5 reference point

5.7 Support for V2X communication for UEs in limited service state Word-p. 33

5.8 Interworking between EPS V2X and 5GS V2X

5.8.1 V2X Policy and parameter provisioning

5.8.2 PC5 Operation

5.8.3 Mobility between EPS and 5GS over Uu

6 Functional description and information flows Word-p. 34

6.1 Control and user plane stacks

6.1.1 User plane for NR PC5 reference point supporting V2X services

6.1.2 Control plane for NR PC5 reference point supporting V2X services

6.2 Procedures for Service Authorization and Provisioning to UE

6.2.2 PCF based Service Authorization and Provisioning to UE

6.2.3 PCF discovery Word-p. 35

6.2.4 Procedure for UE triggered V2X Policy provisioning

6.2.5 AF-based service parameter provisioning for V2X communications over control plane Word-p. 36

6.3 Procedures for V2X communication over PC5 reference point

6.3.1 Broadcast mode V2X communication over PC5 reference point

6.3.2 Groupcast mode V2X communication over PC5 reference point Word-p. 37

6.3.3 Unicast mode V2X communication over PC5 reference point Word-p. 38

6.3.3.1 Layer-2 link establishment over PC5 reference point

6.3.3.2 Link identifier update for a unicast link Word-p. 41

6.3.3.3 Layer-2 link release over PC5 reference point Word-p. 42

6.3.3.4 Layer-2 link modification for a unicast link

6.4 Procedures for V2X communication over Uu reference point Word-p. 43

6.4.1 Procedure for notification on potential QoS change to the V2X Application Server

6.5 Procedures for Service Authorization to NG-RAN for V2X communications over PC5 reference point Word-p. 45

6.5.2 Registration procedure

6.5.3 Service Request procedure

6.5.4 N2 Handover procedure Word-p. 46

6.5.5 Xn Handover procedure

6.5.6 Subscriber Data Update Notification to AMF

6.5.7 Delivery of PC5 QoS parameters to NG-RAN

6.5.8 PC5 Capability for V2X indication and V2X related information per PC5 RAT

A Application Function influence based edge computing for V2X services Word-p. 48

B Change history Word-p. 49