Content for TS 29.562 Word version: 18.5.0
1 Scope
2 References
3 Definitions of terms, symbols and abbreviations
3.1 Terms
3.2 Symbols
3.3 Abbreviations
4 Overview
...
...
1 Scope p. 13
The present document specifies the stage 3 protocol, including message flows and API specification details, for the Nhss services, as part of the 5G Service-Based Architecture, offered by the HSS.
The HSS services specified in the present document include:
- Services for interworking with the IP Multimedia Subsystem (IMS)
- Services for interworking with the Generic Bootstrapping Architecture (GBA)
2 References p. 13
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 23.228: "IP Multimedia Subsystem (IMS); Stage 2".
[7]
TS 29.335: "User Data Repository Access Protocol over the Ud interface; Stage 3".
[8]
RFC 9113: "HTTP/2".
[9]
OpenAPI Initiative, "OpenAPI Specification Version 3.0.0", https://spec.openapis.org/oas/v3.0.0 .
[10]
RFC 8259: "The JavaScript Object Notation (JSON) Data Interchange Format".
[11]
RFC 9457: "Problem Details for HTTP APIs".
[12]
RFC 6902: "JavaScript Object Notation (JSON) Patch".
[13]
TS 23.003: "Numbering, addressing and identification".
[14]
TS 33.203: "Access security for IP-based services".
[15]
TS 29.503: "Unified Data Management Services; Stage 3".
[16]
TS 29.571: "5G System; Common Data Types for Service Based Interfaces Stage 3".
[17]
RFC 4740: "Diameter Session Initiation Protocol (SIP) Application".
[18]
TS 24.229: "IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3".
[19]
RFC 4412: "Communications Resource Priority for the Session Initiation Protocol".
[20]
TS 29.228: "IP Multimedia (IM) Subsystem Cx and Dx interfaces;Signalling flows and message contents".
[21]
TS 23.218: "IP Multimedia (IM) session handling; IM call model; Stage 2".
[22]
RFC 3261: "SIP: Session Initiation Protocol".
[23]
RFC 8497: "Marking SIP messages to be logged".
[24]
TS 24.323: "3GPP IP Multimedia Subsystem (IMS) service level tracing Management Object (MO)".
[25]
TS 23.060: "General Packet Radio Service (GPRS); Service description; Stage 2".
[26]
TS 29.273: "Evolved Packet System (EPS); 3GPP EPS AAA interfaces".
[27]
RFC 4776: "Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration Information".
[28]
RFC 2045: "Multipurpose Internet Mail Extensions(MIME) Part One: Format of Internet Message Bodies".
[29]
ETSI ES 283 034: "Network Attachment Sub-System (NASS); e4 interface based on the DIAMETER protocol".
[30]
TS 29.002: "Mobile Application Part (MAP) specification".
[31]
TS 23.078: "Customised Applications for Mobile network Enhanced Logic (CAMEL) Phase 3 - Stage 2".
[32]
TS 29.272: "Evolved Packet System; MME and SGSN Related Interfaces Based on Diameter Protocol".
[33]
TS 29.518: 5G System; Access and Mobility Management Services; Stage 3".
[34]
TR 21.900: "Technical Specification Group working methods".
[35]
RFC 6749: "The OAuth 2.0 Authorization Framework".
[36]
TS 29.510: "Network Function Repository Services; Stage 3".
[37]
TS 23.380: "IP Multimedia Subsystem (IMS); IMS Restoration Procedures".
[38]
TS 29.328: "IP Multimedia (IM) Subsystem Sh interface; Signalling flows and message contents".
[39]
TS 29.563: "Home Subscriber Server (HSS) services for interworking with Unified Data Management (UDM); Stage 3".
[40]
TS 33.220: "Generic Authentication Architecture (GAA); Generic Bootstrapping Architecture (GBA)".
[41]
TS 33.223: "Generic Authentication Architecture (GAA); Generic Bootstrapping Architecture (GBA) Push function".
[42]
TS 29.309: "Bootstrapping Server Function (GBA BSF) Services; Stage 3".
[43]
TS 23.218: "IP Multimedia (IM) session handling; IM call model; Stage 2".
3 Definitions of terms, symbols and abbreviations p. 15
3.1 Terms p. 15
The following terms and definitions given in TS 23.003 apply:
Distinct Public Service Identity
Distinct Public User Identity
Public Service Identity
Public User Identity
Wildcarded Public Service Identity
Wildcarded Public User Identity
In the present document, the following terms and definitions apply.
Common Part (of a user profile):
Contains Initial Filter Criteria instances that should be evaluated both for registered and unregistered Public User Identities, or for unregistered Public Service Identities in the S-CSCF.
Complete user profile:
Contains the Initial Filter Criteria instances of all three different user profile parts; registered part, unregistered part and common part.
IP Multimedia session:
IP Multimedia session and IP Multimedia call are treated as equivalent in this specification.
Authentication pending flag:
A flag that indicates that the authentication of a Public User Identity - Private User Identity pair is pending and waiting for confirmation.
Implicitly registered Public User Identity set:
A set of Public User Identities, which are registered and de-registered simultaneously when any of the Public User Identities belonging to that set is registered or de-registered.
Not Registered State:
Public Identity is not Registered and has no S-CSCF assigned.
Private Identity:
Either a Private User Identity or a Private Service Identity.
Public Identity:
Either a Public User Identity or a Public Service Identity.
Registered State:
Public User Identity is Registered at the request of the user and has an S-CSCF assigned.
Unregistered State:
Public Identity is not Registered but has a serving S-CSCF assigned to execute Unregistered state services as a consequence of a terminating request, or an originating request from an AS on behalf of a user, or there is an S-CSCF keeping the user profile stored.
User information:
The user related data that the S-CSCF requests from the HSS or HSS pushes to the S-CSCF, e.g. user profile, charging information, allowed WAF and/or WWSF identities and authentication information.
User profile:
Data that is sent in the resource associated to the complete user's subscription data.
IP Multimedia session:
IP Multimedia session and IP Multimedia call are treated as equivalent in this specification.
Transparent data:
Data that is understood syntactically but not semantically by the HSS. It is data that an AS may store in the HSS to support its service logic. One example is data that an AS stores in the HSS, using it as a repository.
Non-transparent data:
Data that is understood both syntactically and semantically by the HSS.
AS (Application Server):
a term used to denote either of a SIP Application Server or an OSA Service Capability Server.
3.2 Symbols p. 16
Void
3.3 Abbreviations p. 16
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
AS
Application Server
AMF
Access and Mobility Management Function
CSCF
Call Session Control Function
CSG
Closed Subscriber Group
DCSF
Data Channel Signalling Function
FQDN
Fully Qualified Domain Name
GIBA
GPRS-IMS-Bundled-Authentication
GPSI
Generic Public Subscription Identifier
HSS
Home Subscriber Server
IMS
IP Multimedia Subsystem
I-CSCF
Interrogating CSCF
JSON
Javascript Object Notation
MPS
Multimedia Priority Service
NAI
Network Access Identifier
NRF
Network Repository Function
NSSAI
Network Slice Selection Assistance Information
NWDAF
Network Data Analytics Function
P-CSCF
Proxy CSCF
SBI
Service Based Interface
SIP
Session Initiation Protocol
SPT
Service Point Trigger
S-CSCF
Serving CSCF
UDR
Unified Data Repository
4 Overview p. 16
4.1 Introduction p. 16
Within the 5GC, the HSS offers services to the S-CSCF, I-CSCF, IMS-AS and DCSF (on the IP Multimedia Subsystem) and GBA BSF via the Nhss service based interface (see TS 23.501 and TS 23.502).
Figure 4.1-1 provides the reference model in service-based interface representation with focus on the HSS.
