ETS 300 581-4 : 20001
Current
The latest, up-to-date edition.
EUROPEAN DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM - HALF RATE SPEECH - COMFORT NOISE ASPECTS FOR THE HALF RATE SPEECH TRAFFIC CHANNELS
Hardcopy , PDF
English
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Foreword
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
3.1 Definitions
3.2 Symbols
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
History
Provides 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 2
|
| DocumentType |
Standard
|
| Pages |
15
|
| PublisherName |
European Telecommunications Standards Institute
|
| Status |
Current
|
| Standards | Relationship |
| NF ETS 300 581-4 : 1998 | Similar to |
| DIN ETS 300581-4:1996-07 | Identical |
| PN ETS 300 581-4 : 2005 | Identical |
| NF ETS 300 500 : 1996 | DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2) - PRINCIPLES OF TELECOMMUNICATION SERVICES SUPPORTED BY A GSM PUBLIC LAND MOBILE NETWORK (PLMN) |
| TS 101 622 : 6.0.1 | DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); GENERAL DESCRIPTION OF A GSM PUBLIC LAND MOBILE NETWORK (PLMN) (GSM 01.02 VERSION 6.0.1 RELEASE 1997) |
| TS 101 377-4-2 : 1.1.1 | GEO-MOBILE RADIO INTERFACE SPECIFICATIONS; PART 4: RADIO INTERFACE PROTOCOL SPECIFICATIONS; SUB-PART 2: GMR-2 MOBILE EARTH STATION-NETWORK INTERFACE; CHANNEL STRUCTURES AND ACCESS CAPABILITIES GMR-2 04.003 |
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