TS 44.004 – GSM Physical Layer Service Definition
3GPP TS 44.004 is the 3GPP Technical Specification for GSM Physical Layer Service Definition. It is published in 12 releases (Rel-8 to Rel-19); the latest version is 19.0.0 in Rel-19.
Defines physical layer service for GSM MS-BS interface, covering signaling channels, bit transmission, and OSI layering principles.
Releases and versions of TS 44.004
| 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 | 14.1.0 | Read · Download (3GPP) |
| Rel-13 | 13.2.0 | Read · Download (3GPP) |
| Rel-12 | 12.1.0 | Read · Download (3GPP) |
| Rel-11 | 11.0.0 | Read · Download (3GPP) |
| Rel-10 | 10.0.0 | Read · Download (3GPP) |
| Rel-9 | 9.0.0 | Read · Download (3GPP) |
| Rel-8 | 8.0.0 | Read · Download (3GPP) |
Scope of TS 44.004
Category: Radio Access (Physical Layer). Technology generation: 2G. 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 that reference TS 44.004
- TS 44.018 GSM Radio Resource Management Procedures
- TS 44.060 GERAN RLC/MAC Protocol Specification
- TS 44.006 LAPDm Protocol for MS-BS Interface
- TS 43.064 GPRS Radio Interface Lower-Layer Functions
- TS 44.005 LAPDm Protocol Specification
- TS 43.010 PLMN Connection Types and Network Capabilities
- TS 44.071 LMU-SMLC LCS Protocol Specification
Other specifications in the 44 series
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 44.004?
3GPP TS 44.004 is the 3GPP Technical Specification for GSM Physical Layer Service Definition. Defines physical layer service for GSM MS-BS interface, covering signaling channels, bit transmission, and OSI layering principles.
Which 3GPP releases include TS 44.004?
TS 44.004 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 44.004 belong to?
TS 44.004 belongs to the Radio Access (Physical Layer) category of 3GPP specifications. It applies to 2G networks.
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