Content for TS 29.503 Word version: 18.6.0

1… 5… 5.3… 5.4… 6… 6.2… 6.3… 6.4… 6.5… A…

3.1 Definitions 3.2 Abbreviations 4.1 Introduction
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1 Scope p. 24

The present document specifies the stage 3 protocol and data model for the Nudm Service Based Interface. It provides stage 3 protocol definitions and message flows, and specifies the API for each service offered by the UDM.

The 5G System stage 2 architecture and procedures are specified in TS 23.501 and TS 23.502.

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. 24

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]

TS 33.501: "Security Architecture and Procedures for 5G System".

[7]

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

[8]

TS 23.003: "Numbering, addressing and identification".

[9]

TS 29.504: "5G System; Unified Data Repository Services; Stage 3".

[10]

TS 29.505: "5G System; Usage of the Unified Data Repository Services for Subscription Data; Stage 3".

[11]

TS 32.255: "Charging management; 5G data connectivity domain charging".

[12]

TS 32.298: "Charging management; Charging Data Record (CDR) parameter description".

[13]

RFC 9113: "HTTP/2".

[14]

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

[15]

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

[16]

RFC 9457: "Problem Details for HTTP APIs".

[17]

RFC 7396: "JSON Merge Patch".

[18]

RFC 6749: "The OAuth 2.0 Authorization Framework".

[19]

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

[20]

TS 23.122: "Non-Access-Stratum (NAS) functions related to Mobile Station in idle mode".

[21]

TS 29.002: "Mobile Application Part (MAP) specification".

[22]

TS 29.338: "Diameter based protocols to support Short Message Service (SMS) capable Mobile Management Entities (MMEs)"

[23]

ITU-T Recommendation E.164: "The international public telecommunication numbering plan".

[24]

TS 29.509: "Authentication Server Services; Stage 3".

[25] Void

[26]

RFC 9111: "HTTP Caching".

[27]

TS 24.501: "Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3".

[28]

ETSI TS 102 225: "Smart Cards; Secured packet structure for UICC based applications".

[29]

RFC 7542: "The Network Access Identifier".

[30]

TR 21.900: "Technical Specification Group working methods".

[31]

RFC 3986: "Uniform Resource Identifier (URI): Generic Syntax".

[32]

TS 23.632: "User Data Interworking, Coexistence and Migration"

[33]

TS 29.519: "Policy Data, Application Data and Structured Data for Exposure; Stage 3".

[34]

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

[35]

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

[36]

TS 29.518: "Access and Mobility Management Services".

[37]

TS 23.316: "Wireless and wireline convergence access support for the 5G System (5GS); Stage 2".

[38]

TS 23.273: "5G System (5GS) Location Services (LCS); Stage 2".

[39]

TS 29.515: "5G System; Gateway Mobile Location Services; Stage 3".

[40]

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

[41]

RFC 6902: "JavaScript Object Notation (JSON) Patch".

[42]

BBF TR-069: "CPE WAN Management Protocol".

[43]

BBF TR-369: "User Services Platform (USP)".

[44]

TS 29.524: "5G System; Cause codes mapping between 5GC interfaces; Stage 3".

[45]

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

[46]

TS 24.008: "Mobile radio interface Layer 3 specification; Core network protocols; Stage 3".

[47]

TS 22.071: "Location Services (LCS); Service description; Stage 1".

[48]

TS 32.422: "Telecommunication management; Subscriber and equipment trace; Trace control and configuration management".

[49]

TS 24.302: "Access to the 3GPP Evolved Packet Core (EPC) via non-3GPP access networks".

[50]

RFC 9110: "http Semantics".

[51]

TS 23.287: "Architecture enhancements for 5G System (5GS) to support Vehicle-to-Everything (V2X) services".

[52]

TS 29.328: "IP Multimedia (IM) Subsystem Sh interface; Signalling flows and message contents".

[53]

TS 23.040: "Technical realization of the Short Message Service (SMS)".

[54]

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

[55]

TS 33.535: "Authentication and Key Management for Applications (AKMA) based on 3GPP credentials in the 5G System (5GS)".

[56]

TS 37.355: "LTE Positioning Protocol (LPP)".

[57]

TS 23.304: "Proximity based Services (ProSe) in the 5G System (5GS)".

[58]

TS 29.520: "5G System; Network Data Analytics Services; Stage 3".

[59]

TS 23.247: "Architectural enhancements for 5G multicast-broadcast services; Stage 2".

[60]

TS 23.548: "5G System Enhancements for Edge Computing; Stage 2".

[61]

TS 33.220: "Generic Authentication Architecture (GAA); Generic Bootstrapping Architecture (GBA)".

[62]

TS 29.563: "5G System; Home Subscriber Server (HSS) services for interworking with Unified Data Management (UDM); Stage 3"

[63]

TS 33.558: "Security aspects of enhancement of support for enabling edge applications; Stage 2".

[64]

TS 33.503: "Security Aspects of Proximity based Services (ProSe) in the 5G System (5GS)".

[65]

TS 29.562: "5G System; Home Subscriber Server (HSS) Services; Stage 3"

[66]

TS 23.540: "5G System; Technical realization of Service Based Short Message Service; Stage 2".

[67]

TS 32.256: "Charging management; 5G connection and mobility domain charging; Stage 2".

[68]

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

[69] Void

[70]

TS 23.256: "Support of Uncrewed Aerial Systems (UAS) connectivity, identification and tracking; Stage 2".

[71]

TS 23.015: "Technical realization of Operator Determined Barring (ODB)".

[72]

TS 33.533: "Security aspects of ranging based services and sidelink positioning".

3 Definitions and abbreviations p. 27

3.1 Definitions p. 27

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. 27

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.

5GC

5G Core Network

5G PKMF

5G ProSe Key Management Function

5G ProSe

5G Proximity-based Services

ACS

Auto-Configuration Server

AKMA

Authentication and Key Management for Applications

AMF

Access and Mobility Management Function

AUSF

Authentication Server Function

DCCF

Data Collection Coordination Function

DNN

Data Network Name

EES

Edge Enabler Server

FQDN

Fully Qualified Domain Name

FN-RG

Fixed Network RG

GMLC

Gateway Mobile Location Centre

GPSI

Generic Public Subscription Identifier

GUAMI

Globally Unique AMF Identifier

HGMLC

Home GMLC

JSON

Javascript Object Notation

LCS

LoCation Services

LPHAP

Low Power and High Accuracy Positioning

LPI

LCS Privacy Indicator

MICO

Mobile Initiated Connection Only

N5GC

Non-5G-Capable

NAI

Network Access Identifier

NAS

Non-Access Stratum

NEF

Network Exposure Function

NIDD

Non-IP Data Delivery

NRF

Network Repository Function

NSSAI

Network Slice Selection Assistance Information

NWDAF

Network Data Analytics Function

PEI

Permanent Equipment Identifier

Personal IoT Network

PRU

Position Reference Unit

QFI

QoS Flow Identifier

5G-RG

5G Residential Gateway

Residential Gateway

SBI

Service Based Interface

SLPKMF

SideLink Positioning Key Management Function

SMF

Session Management Function

SMSF

Short Message Service Function

SUCI

Subscription Concealed Identifier

SUPI

Subscription Permanent Identifier

UDM

Unified Data Management

UDR

Unified Data Repository

W-AGF

Wireline Access Gateway Function

4 Overview p. 28

4.1 Introduction p. 28

Within the 5GC, the UDM offers services to the AMF, SMF, SMSF, NEF, GMLC, NWDAF, AUSF, HSS, GBA's BSF, SMS-GMSC, DCCF, 5GDDNMF, PAnF and 5G PKMF via the Nudm service-based interface (see TS 23.501, TS 23.502, TS 23.288, GPP TS 23.304, TS 23.540, and TS 33.503).

Figure 4.1-1 provides the reference model (in service-based interface representation and in reference point representation), with focus on the UDM.

Reproduction of 3GPP TS 29.503, Fig. 4.1-1: Reference model - UDM

Figure 4.1-1: Reference model - UDM

The functionalities supported by the UDM are listed in clause 6.2.7 of TS 23.501.