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DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) - HALF RATE SPEECH - SUBSTITUTION AND MUTING OF LOST FRAMES FOR HALF RATE SPEECH TRAFFIC CHANNELS

European Telecommunications Standards Institute

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Table of Contents

Intellectual Property Rights
Foreword
1 Scope
2 References
3 Definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 General
5 Requirements
  5.1 Error detection and concealment in case of unreliable
      speech or SID frames
  5.2 Frame substitution and muting in case of lost speech
      or SID frames
6 Example solutions
  6.1 Example solution for error detection in case of
      unreliable frames
  6.2 Example solution for output signal concealment in case
      of unreliable frames
  6.3 Example solution for substitution and muting of lost
      speech frames
  6.4 Example solution for substitution and muting of lost
      SID frames
Annex A (informative): Change Request History
History

Abstract

Specifies a frame substitution and muting procedure which shall be used by the Receive (RX) Discontinuous Transmission (DTX) handler when one or more lost or unreliable speech or Silence Descriptor (SID) frames are received from the Radio Sub System (RSS).

General Product Information

Document Type Standard
Status Current
Publisher European Telecommunications Standards Institute
Committee SMG 11