TS 29.128 – MME/SGSN Interfaces for PDN Interworking
3GPP TS 29.128 is the 3GPP Technical Specification for MME/SGSN Interfaces for PDN Interworking. Its official 3GPP title is “Mobility Management Entity (MME) and Serving GPRS Support Node (SGSN) interfaces for interworking with packet data networks and applications”. It is published in 7 releases (Rel-13 to Rel-19); the latest version is 19.2.0 in Rel-19.
Specifies Diameter-based interfaces between MME/SGSN and SCEF/IWK-SCEF for PDN interworking, monitoring, and MO/MT data handling.
Releases and versions of TS 29.128
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.2.0 | Read · Download (3GPP) |
| Rel-18 | 18.0.0 | Read · Download (3GPP) |
| Rel-17 | 17.1.0 | Read · Download (3GPP) |
| Rel-16 | 16.6.0 | Read · Download (3GPP) |
| Rel-15 | 15.6.0 | Read · Download (3GPP) |
| Rel-14 | 14.6.0 | Read · Download (3GPP) |
| Rel-13 | 13.5.0 | Read · Download (3GPP) |
Scope of TS 29.128
Category: Core Network (Mobility Management). Technology generation: Multi-Gen. Network layer: CoreNetwork.
Who should read this specification?
- Network operators
- Device manufacturers
- Researchers and academics
Protocols and interfaces
Protocols: Diameter
Interfaces: T6a, T6ai, T6b, T6bi, T7
Key use cases
- Monitoring
- MO/MT Data
- Roaming Policy Enforcement
Implementation notes
Complexity level: Advanced. Implementation difficulty: High.
Key technologies
Specifications referenced by TS 29.128
- TS 29.212 Diameter-Based PCC Reference Points
- TS 25.413 Radio Access Network Application Part (RANAP)
- TS 24.008 NAS Call, Mobility and Session Procedures
- TS 36.413 S1 Application Protocol (S1AP) for E-UTRAN
- TS 48.018 BSS-SGSN Interface for GPRS Control
- TS 29.272 MME and SGSN Diameter interfaces to HSS/CSS/EIR
- TS 29.329 Diameter Protocol for Sh Interface
- TS 23.007 Restoration procedures
- TR 21.905 3GPP Terminology and Definitions
- TS 32.299 Diameter Charging Applications for 3GPP
- TS 32.253 Charging for Control Plane Data Transfer
- TS 23.003 Numbering, Addressing and Identification
Specifications that reference TS 29.128
- TS 23.401 Evolved Packet System Architecture
- TS 23.682 Architecture for MTC and SCEF Enhancements
- TS 29.122 T8 SCEF Service Exposure APIs
- TS 29.061 Packet Domain Interworking Requirements
- TS 32.299 Diameter Charging Applications for 3GPP
- TS 29.272 MME and SGSN Diameter interfaces to HSS/CSS/EIR
- TS 32.298 Charging Data Record Specification
- TS 29.336 Diameter-based Interfaces for MTC and Packet Data Networks
- TS 29.230 3GPP Diameter Protocol Codes Specification
- TS 33.128 Lawful Interception Protocols and Procedures
Other specifications in the 29 series
- TS 29.118 MME-VLR Interface for CS Fallback & SMS
- TS 29.119 GTP for GLR in 3GPP Networks
- TS 29.120 GLR MAP signalling requirements & procedures
- TS 29.122 T8 SCEF Service Exposure APIs
- TS 29.139 H(e)NB - SeGW Interface Specification
- TS 29.153 Ns Reference Point Protocol between SCEF and RCAF
- TS 29.154 Nt Reference Point Protocol
- TS 29.155 REST-based St Reference Point Protocol
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 29.128?
3GPP TS 29.128 is the 3GPP Technical Specification for MME/SGSN Interfaces for PDN Interworking. Specifies Diameter-based interfaces between MME/SGSN and SCEF/IWK-SCEF for PDN interworking, monitoring, and MO/MT data handling.
Which 3GPP releases include TS 29.128?
TS 29.128 is published in 7 releases, from Rel-13 to Rel-19. The latest version on 3GPP Explorer is 19.2.0 (Rel-19).
What category does TS 29.128 belong to?
TS 29.128 belongs to the Core Network (Mobility Management) category of 3GPP specifications. It applies to Multi-Gen networks.
View the full specification with interactive table of contents, version history, and AI analysis.
Read Full Specification →