TS 04.05 – Link Access Procedures on Dm channel
3GPP TS 04.05 is the 3GPP Technical Specification for Link Access Procedures on Dm channel. It is published in 4 releases (Ph2 to R98); the latest version is 7.1.2 in R98.
LAPDm protocol for data link layer communication between MS and network using Dm channel, based on OSI model and HDLC standards.
Releases and versions of TS 04.05
| Release | Latest version | Links |
|---|---|---|
| R98 | 7.1.2 | Read · Download (3GPP) |
| R97 | 6.0.1 | Read · Download (3GPP) |
| R96 | 5.0.1 | Read · Download (3GPP) |
| Ph2 | 4.0.3 | Read · Download (3GPP) |
Scope of TS 04.05
Category: Core Network (NAS). Technology generation: 2G. Network layer: CoreNetwork.
Who should read this specification?
- Network operators
- Device manufacturers
- Regulators and standards bodies
- Researchers and academics
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Other specifications in the 04 series
- TS 04.01 GSM MS-BSS Interface General Aspects
- TS 04.02 GSM PLMN Access Reference Configuration
- TS 04.03 Channel Types and Configurations for Radio Interface
- TS 04.04 Physical Layer Service Definition
- TS 04.06 LAPDm Protocol for GSM MS-BS Interface
- TS 04.07 Layer 3 Architecture for GSM Um Interface
- TS 04.08 GSM Call Control and Mobility Management
- TS 04.10 Supplementary Services Layer 3 Procedures
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 04.05?
3GPP TS 04.05 is the 3GPP Technical Specification for Link Access Procedures on Dm channel. LAPDm protocol for data link layer communication between MS and network using Dm channel, based on OSI model and HDLC standards.
Which 3GPP releases include TS 04.05?
TS 04.05 is published in 4 releases, from Ph2 to R98. The latest version on 3GPP Explorer is 7.1.2 (R98).
What category does TS 04.05 belong to?
TS 04.05 belongs to the Core Network (NAS) category of 3GPP specifications. It applies to 2G networks.
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