Table of Contents

Foreword
1 Introduction
  1.1 Scope
  1.2 Normative references
  1.3 Definitions and abbreviations
2 Protocol model
3 Radio link 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
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
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 discrimination 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
History

Abstract

Describes 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 GSM 04.08.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	SMG 3
Supersedes	PRETS 300 596 : DEC 95