TS 101 377-4-6 : 1.1.1

Intellectual Property Rights
Foreword
Introduction
1 Scope
2 References
3 Abbreviations
4 Introduction
   4.1 General
   4.2 Objectives
   4.3 General Characteristics
5 Structure of Signalling Layer 3 Functions
   5.1 Basic Groups of Functions
   5.2 Protocol Architecture
6 Services Provided by Signalling Layer 3 at the
   MES Side
   6.1 Registration Services
   6.2 Call Control Services
   6.3 CaIl-Independent Supplementary Services
       Support
   6.4 Short Message Services Support
7 Services Provided by Signalling Layer 3 on the
   Network Side
   7.1 Call Control Services
   7.2 Call-Independent Supplementary Services
       Support
   7.3 Short Message Services Support
8 Services Assumed from Signalling Layers 1 and 2
   8.1 Priority
   8.2 Unacknowledged Information Transfer
   8.3 Acknowledged Information Transfer
   8.4 Random Access
   8.5 Channel Management and Measurements
9 Interlayer Service Interfaces on the MES Side
   9.1 Service provided by the Radio Resource
       Management Entity
   9.2 Services provided by the Mobility Management
       Entity
10 Interlayer Service Interfaces on the Network Side
   10.1 Services Provided by the Radio Resource
        Management Entity
   10.2 Services provided by the Mobility Management
        Entity
11 Standard L3 Messages
   11.1 Components of a Standard L3 Message
   11.2 Imperative Part of a Standard L3 Message
   11.3 Non-Imperative Part of a Standard L3 Message
   11.4 Presence Requirements of Information Elements
   11.5 Handling of Superfluous Information
History

Describes the architecture of layer 3 and its sublayers on the GMR-2 Um interface, i.e. the interface between the Mobile Earth Station (MES) and the Network. It also defines the basic message format and error handling applied by the layer 3 protocols.