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ETSI
ETS 300 728 : 20001

ETS 300 728 : 20001

Current

Current

The latest, up-to-date edition.

DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - COMFORT NOISE ASPECTS FOR ENHANCED FULL RATE (EFR) SPEECH TRAFFIC CHANNELS

Available format(s)

Hardcopy , PDF

Language(s)

English

Publisher

European Telecommunications Standards Institute

Foreword
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
   3.1 Definitions
   3.2 Symbols
   3.3 Abbreviations
4 General
5 Functions on the transmit (TX) side
   5.1 Background acoustic noise evaluation
   5.2 Modification of the speech encoding
       algorithm during SID frame generation
   5.3 SID-frame encoding
6 Functions on the receive (RX) side
   6.1 Averaging and decoding of the LP and
       fixed codebook gain parameters
   6.2 Comfort noise generation and updating
7 Computational details
History

Defines the correct operation of the background acoustic noise evaluation, noise parameter encoding/decoding and comfort noise generation in Mobile Stations (MSs) and Base Station Systems (BSSs) during Discontinuous Transmission (DTX) on enhanced full rate speech traffic channels. The requirements described in this ETS are mandatory for implementation in all GSM MSs capable of supporting the enhanced full rate speech traffic channel. The receiver requirements are mandatory for implementation in all GSM BSSs capable of supporting the enhanced full rate speech traffic channel, the transmitter requirements only for those where downlink DTX will be used.

Committee
SMG 2
DocumentType
Standard
Pages
19
PublisherName
European Telecommunications Standards Institute
Status
Current
Supersedes

Standards Relationship
PN ETS 300 728 : 2005 Identical

ETS 300 729 : 20002 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - DISCONTINUOUS TRANSMISSION (DTX) FOR ENHANCED FULL RATE (EFR) SPEECH TRAFFIC CHANNELS
ETS 300 724 : 20001 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - ANSI-C CODE FOR THE GSM ENHANCED FULL RATE (EFR) SPEECH CODEC
TS 101 318 : 1.1.1 TELECOMMUNICATIONS AND INTERNET PROTOCOL HARMONIZATION OVER NETWORKS (TIPHON) - USING GSM SPEECH CODECS WITHIN ITU-T RECOMMENDATION H.323
ETS 300 737 : 20002 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); IN-BAND CONTROL OF REMOTE TRANSCODERS AND RATE ADAPTORS FOR ENHANCED FULL RATE (EFR) AND FULL RATE TRAFFIC CHANNELS
ETS 300 725 : 20001 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); TEST SEQUENCES FOR THE GSM ENHANCED FULL RATE (EFR) SPEECH CODEC

ETS 300 727 : 20001 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - SUBSTITUTION AND MUTING OF LOST FRAMES FOR ENHANCED FULL RATE (EFR) SPEECH TRAFFIC CHANNELS
ETS 300 726 : 20002 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) - ENHANCED FULL RATE (EFR) SPEECH TRANSCODING
ETS 300 729 : 20002 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - DISCONTINUOUS TRANSMISSION (DTX) FOR ENHANCED FULL RATE (EFR) SPEECH TRAFFIC CHANNELS
ETS 300 724 : 20001 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - ANSI-C CODE FOR THE GSM ENHANCED FULL RATE (EFR) SPEECH CODEC
ETR 100 : 20003 EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2); ABBREVIATIONS AND ACRONYMS

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