TS 12.21 – Network Management over A-bis Interface
3GPP TS 12.21 is the 3GPP Technical Specification for Network Management over A-bis Interface. It is published in 4 releases (Ph2 to R98); the latest version is 7.0.0 in R98.
Defines network management procedures and messages across the A-bis interface between BSC and BTS, enabling interoperation between equipment from different manufacturers.
Releases and versions of TS 12.21
| Release | Latest version | Links |
|---|---|---|
| R98 | 7.0.0 | Read · Download (3GPP) |
| R97 | 6.0.0 | Read · Download (3GPP) |
| R96 | 5.0.0 | Read · Download (3GPP) |
| Ph2 | 4.5.4 | Read · Download (3GPP) |
Scope of TS 12.21
Category: Management (Network Management). Technology generation: 2G. Network layer: Management.
Who should read this specification?
- Network operators
- Device manufacturers
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Other specifications in the 12 series
- TS 12.08 GSM Trace Facility Specification
- TS 12.11 GSM Fault Management
- TS 12.15 GPRS Charging Architecture Specification
- TS 12.20 GSM BSS Configuration & Fault Management Model
- TS 12.22 BSC Interworking for Q3/Qx Interfaces
- TS 12.30 GSM O&M Object Identifier Tree Structure
- TS 12.71 LCS Network Management Architecture
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 12.21?
3GPP TS 12.21 is the 3GPP Technical Specification for Network Management over A-bis Interface. Defines network management procedures and messages across the A-bis interface between BSC and BTS, enabling interoperation between equipment from different manufacturers.
Which 3GPP releases include TS 12.21?
TS 12.21 is published in 4 releases, from Ph2 to R98. The latest version on 3GPP Explorer is 7.0.0 (R98).
What category does TS 12.21 belong to?
TS 12.21 belongs to the Management (Network Management) category of 3GPP specifications. It applies to 2G networks.
View the full specification with interactive table of contents, version history, and AI analysis.
Read Full Specification →