ETSI TS 123 287 V17.5.0 (2023-01)

5G; Architecture enhancements for 5G System (5GS) to support Vehicle-to-Everything (V2X) services (3GPP TS 23.287 version 17.5.0 Release 17)

RTS/TSGS-0223287vh50

General Information

• Status: Not Published
• Technical Committee: 3GPP SA 2 - Architecture
• Current Stage: 12 - Citation in the OJ (auto-insert)
• Completion Date: 06-Jan-2023

Standards Content (Sample)

ETSI TS 123 287 V17.5.0 (2023-01)






TECHNICAL SPECIFICATION
5G;
Architecture enhancements for 5G System (5GS)
to support Vehicle-to-Everything (V2X) services
(3GPP TS 23.287 version 17.5.0 Release 17)

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3GPP TS 23.287 version 17.5.0 Release 17 1 ETSI TS 123 287 V17.5.0 (2023-01)

Reference
RTS/TSGS-0223287vh50
Keywords
5G
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3GPP TS 23.287 version 17.5.0 Release 17 2 ETSI TS 123 287 V17.5.0 (2023-01)
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3GPP TS 23.287 version 17.5.0 Release 17 3 ETSI TS 123 287 V17.5.0 (2023-01)
Contents
Intellectual Property Rights . 2
Legal Notice . 2
Modal verbs terminology . 2
Foreword . 6
1 Scope . 7
2 References . 7
3 Definitions and abbreviations . 8
3.1 Definitions . 8
3.2 Abbreviations . 9
4 Architecture model and concepts . 10
4.1 General concept . 10
4.2 Architectural reference model . 10
4.2.1 PC5 and Uu based V2X architecture reference model . 10
4.2.1.1 Non-roaming 5G System architecture for V2X communication over PC5 and Uu reference points . 10
4.2.1.2 Roaming 5G System architecture for V2X communication over PC5 and Uu reference points . 11
4.2.1.3 Inter-PLMN 5G System architecture for V2X communication over PC5 reference point . 12
4.2.2 AF-based service parameter provisioning for V2X communications . 12
4.2.3 Reference points . 12
4.2.4 Service-based interfaces . 13
4.3 Architecture reference model for interworking with EPS V2X. 13
4.4 Functional entities . 14
4.4.1 UE . 14
4.4.2 PCF . 15
4.4.3 V2X Application Server . 15
4.4.4 AMF. 15
4.4.5 UDM . 15
4.4.6 UDR . 16
4.4.7 NRF . 16
4.4.8 NEF . 16
5 High level functionality and features . 16
5.1 Authorization and Provisioning for V2X communications . 16
5.1.1 General . 16
5.1.2 Authorization and Provisioning for V2X communications over PC5 reference point . 17
5.1.2.1 Policy/Parameter provisioning . 17
5.1.2.2 Principles for applying parameters for V2X communications over PC5 reference point . 18
5.1.3 Authorization and provisioning for V2X communications over Uu reference point . 20
5.1.3.1 Policy/Parameter provisioning . 20
5.2 V2X communication . 20
5.2.1 V2X communication over PC5 reference point . 20
5.2.1.1 General . 20
5.2.1.2 Broadcast mode communication over PC5 reference point . 21
5.2.1.3 Groupcast mode communication over PC5 reference point . 21
5.2.1.4 Unicast mode communication over PC5 reference point . 22
5.2.1.5 IP address allocation . 23
5.2.2 V2X communication over Uu reference point . 23
5.2.2.1 V2X communication via unicast . 23
5.2.3 V2X communication over PC5 or Uu reference point . 24
5.2.3.1 General . 24
5.3 V2X Application Server discovery. 24
5.3.1 General . 24
5.3.2 Multiple V2X Application Server and Localized V2X Application Server discovery and routing . 25
5.4 QoS handling for V2X communication . 25
5.4.1 QoS handling for V2X communication over PC5 reference point . 25
ETSI

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3GPP TS 23.287 version 17.5.0 Release 17 4 ETSI TS 123 287 V17.5.0 (2023-01)
5.4.1.1 QoS model. 25
5.4.1.1.1 General overview. 25
5.4.1.1.2 Deriving PC5 QoS parameters and assigning PFI for PC5 QoS Flow . 27
5.4.1.1.3 Handling of PC5 QoS Flows based on PC5 QoS Rules . 27
5.4.1.1.4 PC5 Packet Filter Set . 29
5.4.1.2 QoS handling for broadcast mode V2X communication over PC5 reference point . 29
5.4.1.3 QoS handling for groupcast mode V2X communication over PC5 reference point . 30
5.4.1.4 QoS handling for unicast mode V2X communication over PC5 reference point . 30
5.4.2 PC5 QoS parameters . 30
5.4.2.1 PQI . 30
5.4.2.2 PC5 Flow Bit Rates . 30
5.4.2.3 PC5 Link Aggregated Bit Rates . 31
5.4.2.4 Range . 31
5.4.2.5 Default Values . 31
5.4.3 PC5 QoS characteristics . 31
5.4.3.1 General . 31
5.4.3.2 Resource Type . 31
5.4.3.3 Priority Level . 32
5.4.3.4 Packet Delay Budget . 32
5.4.3.5 Packet Error Rate . 32
5.4.3.6 Averaging Window . 32
5.4.3.7 Maximum Data Burst Volume . 32
5.4.4 Standardized PQI to QoS characteristics mapping . 32
5.4.5 QoS handling for V2X communication over Uu reference point . 34
5.4.5.1 General . 34
5.4.5.2 Notification on QoS Sustainability Analytics to the V2X Application Server . 34
5.4.5.2.1 General . 34
5.4.5.2.2 Functional description . 34
5.4.5.3 QoS Change based on Extended NG-RAN Notification to support Alternative Service
Requirements . 34
5.5 Subscription to V2X services . 35
5.6 Identifiers . 35
5.6.1 Identifiers for V2X communication over PC5 reference point . 35
5.6.1.1 General . 35
5.6.1.2 Identifiers for broadcast mode V2X communication over PC5 reference point . 36
5.6.1.3 Identifiers for groupcast mode V2X communication over PC5 reference point . 36
5.6.1.4 Identifiers for unicast mode V2X communication over PC5 reference point . 36
5.7 Support for V2X communication for UEs in limited service state . 37
5.8 Interworking between EPS V2X and 5GS V2X . 37
5.8.1 V2X Policy and parameter provisioning . 37
5.8.2 PC5 Operation . 37
5.8.3 Mobility between EPS and 5GS over Uu. 37
5.9 Support of QoS aware NR PC5 power efficiency for pedestrian UEs. 38
6 Functional description and information flows . 39
6.1 Control and user plane stacks . 39
6.1.1 User plane for NR PC5 reference point supporting V2X services . 39
6.1.2 Control plane for NR PC5 reference point supporting V2X services . 39
6.2 Procedures for Service Authorization and Provisioning to UE . 40
6.2.1 General . 40
6.2.2 PCF based Service Authorization and Provisioning to UE . 40
6.2.3 PCF discovery . 41
6.2.4 Procedure for UE triggered V2X Policy provisioning . 41
6.2.5 AF-based service parameter provisioning for V2X communications over control plane . 42
6.3 Procedures for V2X communication over PC5 reference point . 42
6.3.1 Broadcast mode V2X communication over PC5 reference point . 42
6.3.2 Groupcast mode V2X communication over PC5 reference point . 43
6.3.3 Unicast mode V2X communication over PC5 reference point . 44
6.3.3.1 Layer-2 link establishment over PC5 reference point . 44
6.3.3.2 Link identifier update for a unicast link . 48
6.3.3.3 Layer-2 link release over PC5 reference point . 49
6.3.3.4 Layer-2 link modification for a unicast link . 49
ETSI

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3GPP TS 23.287 version 17.5.0 Release 17 5 ETSI TS 123 287 V17.5.0 (2023-01)
6.3.3.5 Layer-2 link maintenance over PC5 reference point . 50
6.4 Procedures for V2X communication over Uu reference point . 51
6.4.1 Procedure for notification on QoS Sustainability Analytics to the V2X Application Server . 51
6.5 Procedures for Service Authorization to NG-RAN for V2X communications over PC5 reference point . 53
6.5.1 General . 53
6.5.2 Registration procedure . 53
6.5.3 Service Request procedure . 53
6.5.4 N2 Handover procedure . 54
6.5.5 Xn Handover procedure . 54
6.5.6 Subscriber Data Update Notification to AMF . 54
6.5.7 Delivery of PC5 QoS parameters to NG-RAN . 54
6.5.8 PC5 Capability for V2X indication and V2X related information per PC5 RAT . 55
Annex A (informative): Application Function influence based edge computing for V2X
services . 56
Annex B (informative): Road Side Unit (RSU) implementation options . 57
Annex C (informative): Change history . 58
History . 61

ETSI

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3GPP TS 23.287 version 17.5.0 Release 17 6 ETSI TS 123 287 V17.5.0 (2023-01)
Foreword
This Technical Specification has been produced by the 3rd Generation Partnership Project (3GPP).
The contents of the present document are subject to continuing work within the TSG and may change following formal
TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an
identifying change of release date and an increase in version number as follows:
Version x.y.z
where:
x the first digit:
1 presented to TSG for information;
2 presented to TSG for approval;
3 or greater indicates TSG approved document under change control.
y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
updates, etc.
z the third digit is incremented when editorial only changes have been incorporated in the document.
ETSI

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3GPP TS 23.287 version 17.5.0 Release 17 7 ETSI TS 123 287 V17.5.0 (2023-01)
1 Scope
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 [2] and TS 22.186 [3]:
- PC5 reference point: NR PC5 RAT, LTE PC5 RAT.
- Uu reference point: NR, E-UTRA.
This specification also covers interworking with EPS.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including
a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same
Release as the present document.
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 22.185: "Service requirements for V2X services; Stage 1".
[3] 3GPP TS 22.186: "Enhancement of 3GPP support for V2X scenarios; Stage 1".
[4] ISO 17419:2018: "Intelligent transport systems - Cooperative systems - Globally unique
identification".
[5] IEEE Std 1609.12-2016: "IEEE Standard for Wireless Access in Vehicular Environments
(WAVE) - Identifier Allocations".
[6] 3GPP TS 23.501: "System Architecture for the 5G System; Stage 2".
[7] 3GPP TS 23.502: "Procedures for the 5G System; Stage 2".
[8] 3GPP TS 23.285: "Architecture enhancements for V2X services".
[9] 3GPP TS 36.300: "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal
Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2".
[10] 3GPP TS 36.304: "Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE)
procedures in idle mode".
[11] 3GPP TS 38.300: "NR; NR and NG-RAN Overall Description; Stage 2".
[12] 3GPP TS 38.304: "NR; User Equipment (UE) procedures in Idle mode and RRC Inactive state".
[13] 3GPP TS 23.122: "Non-Access-Stratum (NAS) functions related to Mobile Station (MS) in idle
mode".
[14] 3GPP TS 36.331: "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource
Control (RRC); Protocol specification".
[15] 3GPP TS 38.331: "NR; Radio Resource Control (RRC); protocol specification".
[16] 3GPP TS 23.503: "Policy and Charging Control Framework for the 5G System; Stage 2".
ETSI

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3GPP TS 23.287 version 17.5.0 Release 17 8 ETSI TS 123 287 V17.5.0 (2023-01)
[17] 3G
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