TS 29.509 – AUSF Service Based Interface
3GPP TS 29.509 is the 3GPP Technical Specification for AUSF Service Based Interface. Its official 3GPP title is “5G System; Authentication Server Services”. It is published in 6 releases (Rel-15 to Rel-20); the latest version is 20.0.0 in Rel-20.
Specifies stage 3 protocol and data model for Nausf Service Based Interface, including UE authentication, SoR protection, and UPU protection.
Releases and versions of TS 29.509
| Release | Latest version | Links |
|---|---|---|
| Rel-20 | 20.0.0 | Read · Download (3GPP) |
| Rel-19 | 19.6.0 | Read · Download (3GPP) |
| Rel-18 | 18.6.0 | Read · Download (3GPP) |
| Rel-17 | 17.12.0 | Read · Download (3GPP) |
| Rel-16 | 16.11.0 | Read · Download (3GPP) |
| Rel-15 | 15.8.0 | Read · Download (3GPP) |
Scope of TS 29.509
Category: Core Network (Authentication). Technology generation: 5G. Network layer: CoreNetwork.
Who should read this specification?
- Network operators
- Device manufacturers
- Regulators and standards bodies
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Excerpt from TS 29.509
1 Scope
The present document specifies the stage 3 protocol and data model for the Nausf Service Based Interface. It provides stage 3 protocol definitions and message flows, and specifies the API for each service offered by the AUSF.
The 5G System stage 2 architecture and procedures are specified in 3GPP TS 23.501 [2], 3GPP TS 23.502 [3] and 3GPP TS 33.501 [8].
The Technical Realization of the Service Based Architecture and the Principles and Guidelines for Services Definition are specified in 3GPP TS 29.500 [4] and 3GPP TS 29.501 [5].
Excerpt from the official 3GPP document (Rel-20). Read the full specification with interactive table of contents.
Specifications referenced by TS 29.509
- TS 29.571 5G Common Data Types
- TS 29.503 UDM Service Based Interface
- TS 29.510 NRF Service-Based Interface
- TS 31.102 USIM Application Specification
- TR 21.905 3GPP Terminology and Definitions
- TS 24.501 5GS NAS Protocol Specification
- TR 21.900 3GPP Document Management Working Methods
- TS 29.544 Nspaf Service Based Interface for 5G System
- TS 23.316 Wireless and wireline convergence access support
- TS 29.524 5GC to NAS Cause Mapping Specification
- TS 33.503 5G ProSe Security Specification
- TS 23.501 5G System Architecture
Specifications that reference TS 29.509
- TS 29.501 5GC SBI API Design Principles
- TS 29.503 UDM Service Based Interface
- TS 29.505 UDR Services for Subscription Data
- TS 29.524 5GC to NAS Cause Mapping Specification
- TS 29.544 Nspaf Service Based Interface for 5G System
- TS 33.128 Lawful Interception Protocols and Procedures
- TS 29.526 Nnssaaf Service Interface
- TS 33.512 AMF Security Assurance Specification
- TS 29.550 Nsoraf Service Based Interface for SOR-AF
- TS 29.559 5G PKMF Service Based Interface
- TR 33.741 Home Network Triggered Authentication
Other specifications in the 29 series
- TS 29.505 UDR Services for Subscription Data
- TS 29.506 UDR Services for Ambient IoT Data
- TS 29.507 Access and Mobility Policy Control
- TS 29.508 Session Management Event Exposure Service
- TS 29.510 NRF Service-Based Interface
- TS 29.511 N5g-eir Service Based Interface
- TS 29.512 Session Management Policy Control Service Stage 3
- TS 29.513 5G PCC Signalling Flows
Frequently asked questions
What is 3GPP TS 29.509?
3GPP TS 29.509 is the 3GPP Technical Specification for AUSF Service Based Interface. Specifies stage 3 protocol and data model for Nausf Service Based Interface, including UE authentication, SoR protection, and UPU protection.
Which 3GPP releases include TS 29.509?
TS 29.509 is published in 6 releases, from Rel-15 to Rel-20. The latest version on 3GPP Explorer is 20.0.0 (Rel-20).
What category does TS 29.509 belong to?
TS 29.509 belongs to the Core Network (Authentication) category of 3GPP specifications. It applies to 5G networks.
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