Content for TS 29.564 Word version: 18.5.0
1 Scope
2 References
3 Definitions, symbols and abbreviations
3.1 Definitions
3.2 Symbols
3.3 Abbreviations
4 Overview
4.1 Introduction
...
...
1 Scope p. 6
The present document specifies the stage 3 protocol and data model for the Nupf Service Based Interface. It provides stage 3 protocol definitions and message flows, and specifies the API for each service offered by the UPF.
The 5G System stage 2 architecture and procedures are specified in TS 23.501, TS 23.502 and TS 23.548.
The Technical Realization of the Service Based Architecture and the Principles and Guidelines for Services Definition are specified in TS 29.500 and TS 29.501.
2 References p. 6
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]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 23.501: "System Architecture for the 5G System; Stage 2".
[3]
TS 23.502: "Procedures for the 5G System; Stage 2".
[4]
TS 29.500: "5G System; Technical Realization of Service Based Architecture; Stage 3".
[5]
TS 29.501: "5G System; Principles and Guidelines for Services Definition; Stage 3".
[6]
OpenAPI: "OpenAPI Specification Version 3.0.0", https://spec.openapis.org/oas/v3.0.0 .
[7]
TR 21.900: "Technical Specification Group working methods".
[8]
TS 33.501: "Security architecture and procedures for 5G system".
[9]
RFC 6749: "The OAuth 2.0 Authorization Framework".
[10]
TS 29.510: "5G System; Network Function Repository Services; Stage 3".
[11]
RFC 9113: "HTTP/2".
[12]
RFC 8259: "The JavaScript Object Notation (JSON) Data Interchange Format".
[13]
RFC 9457: "Problem Details for HTTP APIs".
[14]
TS 23.548: "5G System Enhancements for Edge Computing; Stage 2".
[15]
TS 29.244: "Interface between the Control Plane and the User Plane Nodes; Stage 3".
[16]
TS 29.571: "5G System; Common Data Types for Service Based Interfaces; Stage 3".
[17]
TS 23.288: "Architecture enhancements for 5G System (5GS) to support network data analytics services".
[18]
TS 24.539: "5G System (5GS); Network to TSN translator (TT) protocol aspects; Stage 3".
[19]
TS 29.512: "5G System; Session Management Policy Control Service; Stage 3".
[20]
TS 29.122: "Technical Specification Group Core Network and Terminals; T8 reference point for Northbound APIs".
3 Definitions, symbols and abbreviations p. 7
3.1 Definitions p. 7
For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
3.2 Symbols p. 7
None in this release.
3.3 Abbreviations p. 8
For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
AF
Application Function
DCCF
Data Collection Coordination Function
L-UPF
Local User Plane Function
L-NEF
Local Network Exposure Function
MFAF
Messaging Framework Adaptor Function
NAT
Network Address Translation
NEF
Network Exposure Function
NWDAF
Network Data Analytics Function
UPF
User Plane Function
SMF
Session Management Function
TSCTSF
Time Sensitive Communication and Time Synchronization Function
TSN
Time Sensitive Networking
4 Overview p. 8
4.1 Introduction p. 8
Within the 5GC, the UPF offers services to the NEF, AF, SMF, NWDAF, DCCF, MFAF, TSCTSF and TSN AF via the Nupf service based interface (see TS 23.501, TS 23.502, TS 23.288 and TS 23.548).
Figure 4.1-1 provides the reference model (in service based interface representation and in reference point representation), with focus on the UPF.
The UPF supports the following functionalities which are provided via Service Based Interface:
- Subscription to notifications of events exposed by the UPF;
- Notification about UPF events; and
- Translation of (NATed) Public UE IP address and port to (5GC) Private UE IP address.
