Content for TS 29.520 Word version: 18.4.0

1 Scope p. 17

The present specification provides the stage 3 definition of the Network Data Analytics Function Services of the 5G System.

The 5G System Architecture is defined in TS 23.501. The stage 2 definition and related procedures for Network Data Analytics Function Services are specified in TS 23.288 and TS 23.503.

The 5G System stage 3 call flows are provided in TS 29.552 and TS 29.513.

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.

The Network Data Analytics Function Services are provided by the Network Data Analytics Function (NWDAF).

2 References p. 17

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] Void.

[4]

TS 23.503: "Policy and Charging Control Framework for the 5G System; Stage 2".

[5]

TS 29.513: "5G System; Policy and Charging Control signalling flows and QoS parameter mapping; Stage 3".

[6]

TS 29.500: "5G System; Technical Realization of Service Based Architecture; Stage 3".

[7]

TS 29.501: "5G System; Principles and Guidelines for Services Definition; Stage 3".

[8]

TS 29.571: "5G System; Common Data Types for Service Based Interfaces; Stage 3".

[9]

RFC 9113: "HTTP/2".

[10]

RFC 8259: "The JavaScript Object Notation (JSON) Data Interchange Format".

[11]

OpenAPI: "OpenAPI Specification Version 3.0.0", https://spec.openapis.org/oas/v3.0.0

[12]

TS 29.510: "5G System; Network Function Repository Services; Stage 3".

[13]

TS 33.501: "Security architecture and procedures for 5G system".

[14]

RFC 6749: "The OAuth 2.0 Authorization Framework".

[15]

RFC 9457: "Problem Details for HTTP APIs".

[16]

TR 21.900: "Technical Specification Group working methods".

[17]

TS 23.288: "Architecture enhancements for 5G System (5GS) to support network data analytics services".

[18]

TS 29.554: "5G System; Background Data Transfer Policy Control Service; Stage 3".

[19]

TS 29.122: "T8 reference point for Northbound APIs".

[20]

TS 29.523: "5G System; Policy Control Event Exposure Service; Stage 3".

[21]

TS 29.514: "5G System; Policy Authorization Service; Stage 3".

[22]

TS 29.517: "5G System; Application Function (AF) event exposure service".

[23]

TS 29.503: "5G System; Unified Data Management Services; Stage 3".

[24]

TS 29.531: "5G System; Network Slice Selection Services; Stage 3".

[25]

TS 29.552: "5G System; Network Data Analytics signalling flows; Stage 3".

[26]

TS 29.574: "5G System; Data Collection Coordination Services; Stage 3".

[27]

TS 29.575: "5G System; Analytics Data Repository Services; Stage 3".

[28]

TS 29.576: "5G System; Messaging Framework Adaptor Services; Stage 3".

[29]

TS 29.508: "5G System; Session Management Event Exposure Service; Stage 3".

[30]

TS 29.572: "5G System; Location Management Services; Stage 3".

[31]

IANA: "SMI Network Management Private Enterprise Codes", http://www.iana.org/assignments/enterprise-numbers.

[32]

TS 29.522: "5G System; Network Exposure Function Northbound APIs; Stage 3".

[33]

RFC 6733: "Diameter Base Protocol".

3 Definitions and abbreviations p. 18

3.1 Definitions p. 18

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 Abbreviations p. 18

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.

5QI

5G QoS Identifier

ADRF

Analytics Data Repository Function

Application Function

AI/ML

Artificial Intelligence/Machine Learning

AMF

Access and Mobility Management Function

AOI

Area of Interest

API

Application Programming Interface

CEF

Charging Enablement Function

DCCF

Data Collection Coordination Function

DNN

Data Network Name

Federated Learning

GFBR

Guaranteed Flow Bit Rate

GMLC

Gateway Mobile Location Centre

HTTP

Hypertext Transfer Protocol

JSON

JavaScript Object Notation

LADN

Local Area Data Network

LMF

Location Management Function

MFAF

Messaging Framework Adaptor Function

Machine Learning

MTLF

Model Training Logical Function

NEF

Network Exposure Function

Network Function

NLOS

Non Line Of Sight

NRF

Network Repository Function

NSSF

Network Slice Selection Function

NWDAF

Network Data Analytics Function

OAM

Operation, Administration, and Maintenance

PCF

Policy Control Function

PFD

Packet Flow Description

PFDF

Packet Flow Description Function

S-NSSAI

Single Network Slice Selection Assistance Information

SMCC

Session Management Congestion Control

SMCCE

Session Management Congestion Control Experience

SMF

Session Management Function

SSC

Session and Service Continuity

SUPI

Subscription Permanent Identifier

UDM

Unified Data Management

UPF

User Plane Function

URI

Uniform Resource Identifier

URSP

UE Route Selection Policy

UTC

Universal Time Coordinated