TS 29.508 – Session Management Event Exposure Service
3GPP TS 29.508 is the 3GPP Technical Specification for Session Management Event Exposure Service. Its official 3GPP title is “5G System; Session Management Event Exposure Service; Stage 3”. It is published in 6 releases (Rel-15 to Rel-20); the latest version is 20.1.0 in Rel-20.
Defines the 5G Nsmf_EventExposure service for subscribing to, managing, and receiving notifications about PDU session events from SMF, I-SMF, and V-SMF.
Releases and versions of TS 29.508
| Release | Latest version | Links |
|---|---|---|
| Rel-20 | 20.1.0 | Read · Download (3GPP) |
| Rel-19 | 19.7.0 | Read · Download (3GPP) |
| Rel-18 | 18.11.0 | Read · Download (3GPP) |
| Rel-17 | 17.17.0 | Read · Download (3GPP) |
| Rel-16 | 16.14.0 | Read · Download (3GPP) |
| Rel-15 | 15.11.0 | Read · Download (3GPP) |
Scope of TS 29.508
Category: Services (Session Management Event Exposure). Technology generation: 5G. Network layer: Services.
Who should read this specification?
- Network operators
- Device manufacturers
- Researchers and academics
Implementation notes
Complexity level: Advanced. Implementation difficulty: High.
Key technologies
Specifications referenced by TS 29.508
- TS 29.571 5G Common Data Types
- TS 29.510 NRF Service-Based Interface
- TS 29.518 AMF Service Based Interface
- TS 29.512 Session Management Policy Control Service Stage 3
- TS 33.501 5G Security Architecture
- TR 21.900 3GPP Document Management Working Methods
- TR 21.905 3GPP Terminology and Definitions
- TS 29.522 NEF Northbound Interface
- TS 23.288 5G Network Data Analytics Architecture
- TS 29.514 Policy Authorization Service
- TS 29.244 PFCP for Control and User Plane Separation
- TS 29.122 T8 SCEF Service Exposure APIs
Specifications that reference TS 29.508
- TS 23.288 5G Network Data Analytics Architecture
- TS 29.122 T8 SCEF Service Exposure APIs
- TS 29.503 UDM Service Based Interface
- TS 29.522 NEF Northbound Interface
- TS 29.514 Policy Authorization Service
- TS 23.700 Study on SEAL Phase 4
- TS 29.520 5G NWDAF Services
- TS 29.512 Session Management Policy Control Service Stage 3
- TS 29.513 5G PCC Signalling Flows
- TS 29.502 5G SMF Service Based Interface Stage 3
- TS 29.505 UDR Services for Subscription Data
- TS 29.523 Policy Control Event Exposure Service
Other specifications in the 29 series
- TS 29.504 Nudr Unified Data Repository Services
- 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 29.509 AUSF Service Based Interface
- 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
Frequently asked questions
What is 3GPP TS 29.508?
3GPP TS 29.508 is the 3GPP Technical Specification for Session Management Event Exposure Service. Defines the 5G Nsmf_EventExposure service for subscribing to, managing, and receiving notifications about PDU session events from SMF, I-SMF, and V-SMF.
Which 3GPP releases include TS 29.508?
TS 29.508 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 29.508 belong to?
TS 29.508 belongs to the Services (Session Management Event Exposure) category of 3GPP specifications. It applies to 5G networks.
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