EN 300 971 : 8.0.1
Current
The latest, up-to-date edition.
DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); HALF RATE SPEECH; COMFORT NOISE ASPECTS FOR THE HALF RATE SPEECH TRAFFIC CHANNELS
Hardcopy , PDF
English
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Foreword
1 Scope
2 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 of the GS parameters
6.2 Comfort noise generation and updating
7 Computational details
Annex A (informative): Change Request History
History
Specifies the detailed requirements for the correct operation of the background acoustic noise evaluation, noise parameter encoding/decoding and comfort noise generation in GSM Mobile Stations (MS)s and Base Station Systems (BSS)s during Discontinuous Transmission (DTX) on half rate speech traffic channels.
| Committee |
SMG 11
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
European Telecommunications Standards Institute
|
| Status |
Current
|
| Standards | Relationship |
| I.S. EN 300 971:V7.0.1 | Identical |
| NBN EN 300 971 : 2001 | Identical |
| NEN EN 300971 : 2000 | Identical |
| PN EN 300 971 : 2005 | Identical |
| TR 102 024-7 : 4.1.1 | TELECOMMUNICATIONS AND INTERNET PROTOCOL HARMONIZATION OVER NETWORKS (TIPHON) RELEASE 4; END-TO-END QUALITY OF SERVICE IN TIPHON SYSTEMS; PART 7: DESIGN GUIDE FOR ELEMENTS OF A TIPHON CONNECTION FROM AN END-TO-END SPEECH TRANSMISSION PERFORMANCE POINT OF VIEW |
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