TS 29.561 – 5G Network Interworking Procedures
3GPP TS 29.561 is the 3GPP Technical Specification for 5G Network Interworking Procedures. Its official 3GPP title is “5G System; Interworking between 5G Network and external Data Networks”. It is published in 6 releases (Rel-15 to Rel-20); the latest version is 20.1.0 in Rel-20.
Defines Stage 3 procedures for 5G interworking with external data networks, network-slice AAA, EPC, and wireline access networks.
Releases and versions of TS 29.561
| Release | Latest version | Links |
|---|---|---|
| Rel-20 | 20.1.0 | Read · Download (3GPP) |
| Rel-19 | 19.6.0 | Read · Download (3GPP) |
| Rel-18 | 18.5.0 | Read · Download (3GPP) |
| Rel-17 | 17.11.0 | Read · Download (3GPP) |
| Rel-16 | 16.9.0 | Read · Download (3GPP) |
| Rel-15 | 15.7.0 | Read · Download (3GPP) |
Scope of TS 29.561
Category: Core Network (Network Interworking). Technology generation: 5G. Network layer: CoreNetwork.
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
Specifications referenced by TS 29.561
- TS 23.228 IP Multimedia Core Network Subsystem
- TS 24.229 IMS SIP/SDP Call Control Protocol
- TR 21.905 3GPP Terminology and Definitions
- TS 23.003 Numbering, Addressing and Identification
- TS 23.501 5G System Architecture
- TS 23.380 IMS Restoration Procedures
- TS 23.502 5G System Procedures
- TS 29.502 5G SMF Service Based Interface Stage 3
- TS 29.229 Diameter Protocol for Cx/Dx Interfaces
- TS 24.501 5GS NAS Protocol Specification
- TS 23.316 Wireless and wireline convergence access support
- TS 29.571 5G Common Data Types
Specifications that reference TS 29.561
Other specifications in the 29 series
- TS 29.556 EASDF Service Based Interface Stage 3
- TS 29.557 5G ProSe Application Function Service
- TS 29.558 Edge Application Enablement APIs
- TS 29.559 5G PKMF Service Based Interface
- TS 29.562 HSS Nhss Services for IMS and GBA
- TS 29.563 Nhss Services for 5G SBA Stage 3
- TS 29.564 Nupf Service Based Interface
- TS 29.565 TSCTSF Service-Based Interface
Frequently asked questions
What is 3GPP TS 29.561?
3GPP TS 29.561 is the 3GPP Technical Specification for 5G Network Interworking Procedures. Defines Stage 3 procedures for 5G interworking with external data networks, network-slice AAA, EPC, and wireline access networks.
Which 3GPP releases include TS 29.561?
TS 29.561 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 29.561 belong to?
TS 29.561 belongs to the Core Network (Network Interworking) category of 3GPP specifications. It applies to 5G networks.
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