11 Speech transmission functions of the half rate traffic channel

06.013GPPFull Rate Speech Processing FunctionsTS

The gross bit rate of the half rate speech traffic channel is 11,4 kbit/s. The algorithm for the half rate speech transcoder as well as the associated DTX functions are defined in GSM 06.02 [8], GSM 06.20 [9], GSM 06.21 [10], GSM 06.22 [11], GSM 06.41 [12] and GSM 06.42 [13].

Figure 1: Overview of audio processing functions

Annex A (informative):
Change Request History

Change history

SMG No.

TDoc. No.

CR. No.

Clause affected

New version

Subject/Comments

SMG#07

4.0.5

ETSI Publication

SMG#20

5.0.1

Release 1996 version

SMG#23

97-737

97-741

A004

A005

5.1.0

UAP61 comments

Introduction of Homing for Full Rate Speech Transcoding

SMG#23

5.1.1

ETSI version change

SMG#27

6.0.0

Release 1997 version

SMG#28

P-99-136

A006

5 and Figure 1

7.0.0

Addition of mu-law (PCS 1900)

7.0.2

Update to Version 7.0.2 for Publication

SMG#31

8.0.0

Version for Release 1999

8.0.1

Update to Version 8.0.1 for Publication