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 for interworking with the 5G UDM Network Function.
The 5G System stage 2 architecture and procedures are specified in
TS 23.501 and
TS 23.502.
The User Data Interworking, Coexistence and Migration stage 2 architecture and procedures are specified in
TS 23.632.
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 following documents contain provisions which, through reference in this text, constitute provisions of the present document.
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References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
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For a specific reference, subsequent revisions do not apply.
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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 23.335: "User Data Convergence (UDC); Technical realization and information flows".
[7]
TS 29.571: "5G System; Common Data Types for Service Based Interfaces; Stage 3".
[8]
TS 23.632: "User Data Interworking, Coexistence and Migration".
[9]
[10]
[11]
RFC 8259: "The JavaScript Object Notation (JSON) Data Interchange Format".
[12]
[13]
TS 29.503: "5G System; Unified Data Management Services; Stage 3".
[14]
TR 21.900: "Technical Specification Group working methods".
[15]
TS 23.003: "Numbering, addressing and identification".
[16]
TS 29.303: "Domain Name System Procedures; Stage 3".
[17]
TS 29.272: "Evolved Packet System; MME and SGSN Related Interfaces Based on Diameter Protocol".
[18]
TS 23.682: "Architecture enhancements to facilitate communications with packet data networks and applications".
[19]
TS 29.335: "User Data Convergence (UDC); User Data Repository Access Protocol over the Ud interface".
[20]
TS 29.002: "Mobile Application Part (MAP) specification".
[21]
TS 29.336: "Home Subscriber Server (HSS) diameter interfaces for interworking with packet data networks and applications".