TS 29.518 – AMF Service Based Interface
3GPP TS 29.518 is the 3GPP Technical Specification for AMF Service Based Interface. Its official 3GPP title is “5G System; Access and Mobility Management Services”. It is published in 6 releases (Rel-15 to Rel-20); the latest version is 20.1.0 in Rel-20.
Defines the Namf stage 3 APIs, data models, procedures, and service operations provided by the 5G AMF.
Releases and versions of TS 29.518
| Release | Latest version | Links |
|---|---|---|
| Rel-20 | 20.1.0 | Read · Download (3GPP) |
| Rel-19 | 19.8.0 | Read · Download (3GPP) |
| Rel-18 | 18.15.0 | Read · Download (3GPP) |
| Rel-17 | 17.18.0 | Read · Download (3GPP) |
| Rel-16 | 16.19.0 | Read · Download (3GPP) |
| Rel-15 | 15.13.0 | Read · Download (3GPP) |
Scope of TS 29.518
Category: Services (Core Network Service Based Interface). Technology generation: 5G. Network layer: Services.
Who should read this specification?
- Network operators
- Device manufacturers
- Regulators and standards bodies
- Researchers and academics
Implementation notes
Complexity level: Advanced. Implementation difficulty: High.
Key technologies
Excerpt from TS 29.518
1 Scope
The present document specifies the stage 3 protocol and data model for the Namf Service Based Interface. It provides stage 3 protocol definitions and message flows, and specifies the API for each service offered by the AMF.
The 5G System stage 2 architecture and procedures are specified in TS 23.501 [2], TS 23.502 [3] and TS 23.247 [55].
The Technical Realization of the Service Based Architecture and the Principles and Guidelines for Services Definition are specified in TS 29.500 [4] and 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 29.518
- TS 24.501 5GS NAS Protocol Specification
- TS 38.413 NG Application Protocol (NGAP) Specification
- TS 36.355 LTE Positioning Protocol (LPP)
- TS 24.007 Layer 3 Architecture for GSM/UMTS/EPS/5GS
- TS 29.502 5G SMF Service Based Interface Stage 3
- TS 38.455 NR Positioning Protocol A
- TS 29.531 Nnssf Service Based Interface Stage 3
- TR 21.905 3GPP Terminology and Definitions
- TS 23.041 Cell Broadcast Service and Public Warning System
- TS 24.008 NAS Call, Mobility and Session Procedures
- TS 36.413 S1 Application Protocol (S1AP) for E-UTRAN
- TS 29.572 5G LMF Service-Based Interface
Specifications that reference TS 29.518
- TS 23.501 5G System Architecture
- TS 23.502 5G System Procedures
- TS 29.510 NRF Service-Based Interface
- TS 29.500 5G Service Based Architecture
- TS 23.288 5G Network Data Analytics Architecture
- TS 28.541 5G Network Resource Model (NRM) Stage 2 and 3
- TS 28.552 5G Network Performance Measurements
- TS 23.273 5G Location Services Architecture Stage 2
- TS 29.503 UDM Service Based Interface
- TS 29.522 NEF Northbound Interface
- TS 23.700 Study on SEAL Phase 4
- TS 38.305 NG-RAN UE Positioning Stage 2
Other specifications in the 29 series
- TS 29.513 5G PCC Signalling Flows
- TS 29.514 Policy Authorization Service
- TS 29.515 Ngmlc Location Services API
- TS 29.517 AF Event Exposure Service
- TS 29.519 5G UDR Policy and Application Data Services
- TS 29.520 5G NWDAF Services
- TS 29.521 Binding Support Management Service
- TS 29.522 NEF Northbound Interface
Frequently asked questions
What is 3GPP TS 29.518?
3GPP TS 29.518 is the 3GPP Technical Specification for AMF Service Based Interface. Defines the Namf stage 3 APIs, data models, procedures, and service operations provided by the 5G AMF.
Which 3GPP releases include TS 29.518?
TS 29.518 is published in 6 releases, from Rel-15 to Rel-20. The latest version on 3GPP Explorer is 20.1.0 (Rel-20).
What category does TS 29.518 belong to?
TS 29.518 belongs to the Services (Core Network Service Based Interface) category of 3GPP specifications. It applies to 5G networks.
View the full specification with interactive table of contents, version history, and AI analysis.
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