Content for  TS 29.591  Word version:  18.4.0

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1  Scopep. 12

The present document specifies the stage 3 protocol and data model for the Nnef southbound Service Based Interface. It provides stage 3 protocol definitions and message flows, and specifies the API for each service offered by the Network Exposure Function (NEF).
The 5G System stage 2 architecture and procedures are specified in TS 23.501, TS 23.502 and TS 23.288.
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  Referencesp. 12

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.
TR 21.905: "Vocabulary for 3GPP Specifications".
TS 23.501: "System Architecture for the 5G System; Stage 2".
TS 23.502: "Procedures for the 5G System; Stage 2".
TS 29.500: "5G System; Technical Realization of Service Based Architecture; Stage 3".
TS 29.501: "5G System; Principles and Guidelines for Services Definition; Stage 3".
OpenAPI: "OpenAPI Specification Version 3.0.0",
TR 21.900: "Technical Specification Group working methods".
TS 33.501: "Security architecture and procedures for 5G system".
RFC 6749:  "The OAuth 2.0 Authorization Framework".
TS 29.510: "5G System; Network Function Repository Services; Stage 3".
RFC 9113:  "HTTP/2".
RFC 8259:  "The JavaScript Object Notation (JSON) Data Interchange Format".
RFC 9457:  "Problem Details for HTTP APIs".
TS 23.288: "Architecture enhancements for 5G System (5GS) to support network data analytics services".
TS 29.522: "5G System; Network Exposure Function Northbound APIs; Stage 3".
TS 29.571: "5G System; Common Data Types for Service Based Interfaces; Stage 3".
TS 29.520: "5G System; Network Data Analytics Services; Stage 3".
TS 29.517: "5G System; Application Function Event Exposure Service; Stage 3".
TS 29.551: "5G System; Packet Flow Description Management Service; Stage 3".
TS 29.541: "5G System; Network Exposure (NE) function services for Non-IP Data Delivery (NIDD) and Short Message Services (SMS); Stage 3".
TS 29.554: "5G System; Background Data Transfer Policy Control Service; Stage 3".
TS 29.523: "5G System; Policy Control Event Exposure Service; Stage 3".
TS 29.256: "Uncrewed Aerial Systems Network Function (UAS-NF); Aerial Management Services; Stage 3".
TS 26.531: "Data Collection and Reporting; General Description and Architecture".
TS 26.501: "5G Media Streaming (5GMS); General description and architecture".
TS 26.512: "5G Media Streaming (5GMS); Protocols".
TS 23.273: "5G System (5GS) Location Services (LCS); Stage 2".
TS 29.572: "5G System; Location Management Services; Stage 3".
TS 29.122: "T8 reference point for northbound Application Programming Interfaces (APIs)".
TS 29.519: "5G System; Usage of the Unified Data Repository service for Policy Control Data, Application Data and Structured Data for Exposure; Stage 3".
TS 37.355: "LTE Positioning Protocol (LPP)".

3  Definitions, symbols and abbreviationsp. 13

3.1  Definitionsp. 13

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  Symbolsp. 13

For the purposes of the present document, the following symbols apply:

3.3  Abbreviationsp. 13

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.
5G Media Streaming
Application Function
Application Programming Interface
Application Service Provider
Data Collection Coordination Function
Edge Application Server
Edge Hosting Environment
LoCation Services
Location Management FunctionMFAF Messaging Framework Adaptor Function
Network Exposure Function
Network Function
Network Data Analytics Function
Session Management Function
Subscription Permanent Identifier
Uniform Resource Identifier

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