TR 102 021-3 : 1.1.1
Current
The latest, up-to-date edition.
TERRESTRIAL TRUNKED RADIO (TETRA); USER REQUIREMENT SPECIFICATION TETRA RELEASE 2; PART 3: CODEC
Hardcopy , PDF
English
Intellectual Property Rights
Foreword
Introduction
1 Scope
2 References
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 User Requirement Specification
4.1 Method of analysis
4.2 Need for new codec
4.3 Relative importance of the TETRA 2 codec
4.4 Improved end-to-end delay performance
4.5 Codec specific performance figures
4.5.1 Fundamental requirements
4.5.2 Voice quality improvement over existing
codec
4.5.3 Equal or better immunity to background
noise
4.5.4 Interworking with GSM/UMTS (No double
vocoding)
4.6 Interoperability with lower rate, standard
codec
4.7 Timescales for the new
Annex A: Bibliography
History
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