Table of Contents

Intellectual Property Rights
Foreword
Introduction
1 Scope
  1.1 Normative references
  1.2 Abbreviations
2 Protocol model
3 Radio Link Layer Management Procedures
  3.1 Link establishment indication
  3.2 Link establishment request
  3.3 Link release indication
  3.4 Link release request
  3.5 Transmission of a transparent L3-Message in
      acknowledged mode
  3.6 Reception of a transparent L3-Message in
      acknowledged mode
  3.7 Transmission of a transparent L3-Message
      in unacknowledged mode
  3.8 Reception of a transparent L3-Message
      in unacknowledged mode
  3.9 Link error indication
4 Dedicated channel management procedures
  4.1 Channel activation
  4.2 Channel MODE MODIFY
  4.3 Handover detection
  4.4 Start of encryption
  4.5 Measurement reporting
  4.6 Deactivate SACCH
  4.7 Radio channel release
  4.8 MS power control
  4.9 Transmission power control
  4.10 Connection failure
  4.11 Physical context request
  4.12 SACCH information modify
  4.13 Talker detection
  4.14 Listener detection
5 Common channel management procedures
  5.1 Channel request by MS
  5.2 Paging
  5.3 Delete indication
  5.4 CCCH load indication
  5.5 Broadcast information modify
  5.6 Short Message Cell Broadcast
  5.7 IMMEDIATE ASSIGNMENT
  5.8 Notification
6 TRX management procedures
  6.1 Radio resource indication
  6.2 SACCH filling information modify
  6.3 Flow control
  6.4 Error reporting
7 Error handling
  7.1 General
  7.2 Message discriminator error
  7.3 Message type error
  7.4 Message sequence error
  7.5 General information element errors
  7.6 Mandatory information element errors
  7.7 Optional information element errors
  7.8 Conditional information element errors
8 Message formats and contents
  8.1 Transparent messages
  8.2 Non-transparent messages (BSC-BTS specific messages)
  8.3 Radio link layer management messages
  8.4 DEDICATED CHANNEL MANAGEMENT MESSAGES
  8.5 COMMON CHANNEL MANAGEMENT MESSAGES
  8.6 TRX MANAGEMENT MESSAGES
9 Information element codings
  9.1 Message discriminator
  9.2 MESSAGE TYPE
  9.3 Other information elements
Annex A (informative): Document change history
History

Abstract

The use and general aspects of the BSC to BTS interface (the A-bis interface) are given in Technical Specification GSM 08.51. This TS specifies the general structure of layer 3 and traffic management procedures and messages used on the A-bis interface to support signalling procedures as defined in Technical Specification GSM 04.08. Network management procedures and messages for the A-bis interface are defined in Technical Specification GSM 08.59. The functional split between BSC and BTS is defined in Technical Specification GSM 08.52. The procedures and messages required to support this split are defined in detail in this specification. v5.10.0: Introduction of NLN status bit.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	SMG 3
Supersedes	GTS GSM 08.58 : 5.7.0