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3GPP (SA4)
TS 06.20














Half Rate Speech Transcoding

(P) GSM Rel-99 v8.0.1    2000/11    47 p.
(P) GSM Rel-98 v7.0.1    2000/01    47 p.
(P) GSM Rel-97 v6.0.1    1998/11    47 p.
(P) GSM Rel-96 v5.1.1    1997/07    48 p.
(P) GSM Phase-2 v4.3.1    1996/03    48 p.

Rapporteur:  AFTELAK, Steve
Descendant(s):  TS 46.020    

This TS specifies the speech codec to be used for the GSM half rate channel. It also specifies the test methods to be used to verify that the codec implementation complies with this TS.

The requirements are mandatory for the codec to be used either in GSM Mobile Stations (MS)s or Base Station Systems (BSS)s that utilize the half rate GSM speech traffic channel.

1   Scope   PDF-p. 7
2   References
3   Definitions, symbols and abbreviations
4   Functional description of the GSM half rate speech codec   PDF-p. 11
5   Homing sequences
A  (normative)   Codec parameter description   PDF-p. 42
B  (normative)   Order of occurrence of the codec parameters over Abis   PDF-p. 44      Up
C   Bibliography   PDF-p. 45
D   Change Request History   PDF-p. 46