TS 25.446 – MBMS Synchronisation Protocol (SYNC)
3GPP TS 25.446 is the 3GPP Technical Specification for MBMS Synchronisation Protocol (SYNC). It is published in 12 releases (Rel-8 to Rel-19); the latest version is 19.0.0 in Rel-19.
Specifies the SYNC protocol for synchronised delivery of MBMS user data over Iu (UTRAN) and M1 (E-UTRAN) interfaces.
Releases and versions of TS 25.446
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.0.0 | Read · Download (3GPP) |
| Rel-18 | 18.0.0 | Read · Download (3GPP) |
| Rel-17 | 17.0.0 | Read · Download (3GPP) |
| Rel-16 | 16.0.0 | Read · Download (3GPP) |
| Rel-15 | 15.0.0 | Read · Download (3GPP) |
| Rel-14 | 14.0.0 | Read · Download (3GPP) |
| Rel-13 | 13.1.0 | Read · Download (3GPP) |
| Rel-12 | 12.2.0 | Read · Download (3GPP) |
| Rel-11 | 11.0.0 | Read · Download (3GPP) |
| Rel-10 | 10.2.0 | Read · Download (3GPP) |
| Rel-9 | 9.2.1 | Read · Download (3GPP) |
| Rel-8 | 8.2.0 | Read · Download (3GPP) |
Scope of TS 25.446
Category: Radio Access (User Plane Protocols). Technology generation: Multi-Gen. Network layer: RAN.
Who should read this specification?
- Network operators
- Device manufacturers
- Researchers and academics
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Specifications referenced by TS 25.446
Specifications that reference TS 25.446
- TS 36.300 E-UTRAN Radio Interface Protocol Architecture
- TS 25.413 Radio Access Network Application Part (RANAP)
- TS 23.246 MBMS Bearer Service Stage 2 Description
- TS 29.061 Packet Domain Interworking Requirements
- TS 25.346 MBMS in UTRA Technical Specification
- TS 24.380 MCPTT Media Plane Control Protocols
- TS 36.440 E-UTRAN MBMS Architecture Description
- TS 29.380 MCPTT-LMR Interworking Media Plane Control
- TR 23.780 MBMS for Mission Critical Communication Services
Other specifications in the 25 series
- TS 25.434 UTRAN Iub Interface Data Transport and Signalling
- TS 25.435 UTRAN Iub Interface User Plane Protocols
- TS 25.442 Node B Implementation Specific O&M Transport via RNC
- TS 25.444 HNB User Data Transport Protocols
- TS 25.450 Iupc Interface Introduction for UTRAN Positioning
- TS 25.451 Iupc Interface Layer 1 Specification
- TS 25.452 Iupc Interface Signalling Transport for PCAP
- TS 25.453 PCAP Protocol Specification
Related glossary terms
Related topics
Related technologies
Frequently asked questions
What is 3GPP TS 25.446?
3GPP TS 25.446 is the 3GPP Technical Specification for MBMS Synchronisation Protocol (SYNC). Specifies the SYNC protocol for synchronised delivery of MBMS user data over Iu (UTRAN) and M1 (E-UTRAN) interfaces.
Which 3GPP releases include TS 25.446?
TS 25.446 is published in 12 releases, from Rel-8 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).
What category does TS 25.446 belong to?
TS 25.446 belongs to the Radio Access (User Plane Protocols) category of 3GPP specifications. It applies to Multi-Gen networks.
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