TS 29.520 – 5G NWDAF Services
3GPP TS 29.520 is the 3GPP Technical Specification for 5G NWDAF Services. Its official 3GPP title is “5G System; Network Data Analytics Services”. It is published in 6 releases (Rel-15 to Rel-20); the latest version is 20.1.0 in Rel-20.
Defines stage 3 service-based APIs for NWDAF analytics, data management, ML model lifecycle, federated learning, and roaming analytics.
Releases and versions of TS 29.520
| 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 | 17.19.0 | Read · Download (3GPP) |
| Rel-16 | 16.15.0 | Read · Download (3GPP) |
| Rel-15 | 15.11.0 | Read · Download (3GPP) |
Scope of TS 29.520
Category: Services (Network Analytics). 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: Expert. Implementation difficulty: High.
Key technologies
Excerpt from TS 29.520
1 Scope
The present specification provides the stage 3 definition of the Network Data Analytics Function Services of the 5G System.
The 5G System Architecture is defined in 3GPP TS 23.501 [2]. The stage 2 definition and related procedures for Network Data Analytics Function Services are specified in 3GPP TS 23.288 [17] and 3GPP TS 23.503 [4].
The 5G System stage 3 call flows are provided in 3GPP TS 29.552 [25] and 3GPP TS 29.513 [5].
The Technical Realization of the Service Based Architecture and the Principles and Guidelines for Services Definition are specified in 3GPP TS 29.500 [6] and 3GPP TS 29.501 [7].
The Network Data Analytics Function Services are provided by the Network Data Analytics Function (NWDAF).
Excerpt from the official 3GPP document (Rel-20). Read the full specification with interactive table of contents.
Specifications referenced by TS 29.520
- TS 29.510 NRF Service-Based Interface
- TS 33.501 5G Security Architecture
- TR 21.900 3GPP Document Management Working Methods
- TS 23.288 5G Network Data Analytics Architecture
- TS 29.554 BDT Policy Control Service
- TS 29.122 T8 SCEF Service Exposure APIs
- TR 21.905 3GPP Terminology and Definitions
- TS 29.523 Policy Control Event Exposure Service
- TS 29.514 Policy Authorization Service
- TS 29.517 AF Event Exposure Service
- TS 29.503 UDM Service Based Interface
- TS 29.531 Nnssf Service Based Interface Stage 3
Specifications that reference TS 29.520
- TS 29.510 NRF Service-Based Interface
- TS 28.541 5G Network Resource Model (NRM) Stage 2 and 3
- TS 28.552 5G Network Performance Measurements
- TS 29.122 T8 SCEF Service Exposure APIs
- TS 29.503 UDM Service Based Interface
- TS 29.522 NEF Northbound Interface
- TS 32.298 Charging Data Record Specification
- TS 29.518 AMF Service Based Interface
- TS 29.512 Session Management Policy Control Service Stage 3
- TS 32.291 5G Charging Service-Based Interface
- TS 29.513 5G PCC Signalling Flows
- TS 29.519 5G UDR Policy and Application Data Services
Other specifications in the 29 series
- TS 29.515 Ngmlc Location Services API
- TS 29.517 AF Event Exposure Service
- TS 29.518 AMF Service Based Interface
- TS 29.519 5G UDR Policy and Application Data Services
- TS 29.521 Binding Support Management Service
- TS 29.522 NEF Northbound Interface
- TS 29.523 Policy Control Event Exposure Service
- TS 29.524 5GC to NAS Cause Mapping Specification
Frequently asked questions
What is 3GPP TS 29.520?
3GPP TS 29.520 is the 3GPP Technical Specification for 5G NWDAF Services. Defines stage 3 service-based APIs for NWDAF analytics, data management, ML model lifecycle, federated learning, and roaming analytics.
Which 3GPP releases include TS 29.520?
TS 29.520 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 29.520 belong to?
TS 29.520 belongs to the Services (Network Analytics) 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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