11 Speech transmission functions of the half rate traffic channel
3GPP46.001Full rate speechProcessing functionsRelease 17TS
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 History
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Change history |
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SMG No. |
TDoc. No. |
CR. No. |
Clause affected |
New version |
Subject/Comments |
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SMG#07 |
4.0.5 |
ETSI Publication |
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SMG#20 |
5.0.1 |
Release 1996 version |
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SMG#23 |
97-737 97-741 |
A004 A005 |
5.1.0 |
UAP61 comments Introduction of Homing for Full Rate Speech Transcoding |
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SMG#23 |
5.1.1 |
ETSI version change |
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SMG#27 |
6.0.0 |
Release 1997 version |
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SMG#28 |
P-99-136 |
A006 |
5 and Figure 1 |
7.0.0 |
Addition of mu-law (PCS 1900) |
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7.0.2 |
Update to Version 7.0.2 for Publication |
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SMG#31 |
8.0.0 |
Version for Release 1999 |
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8.0.1 |
Update to Version 8.0.1 for Publication |
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Change history |
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Date |
TSG # |
TSG Doc. |
CR |
Rev |
Subject/Comment |
Old |
New |
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03-2001 |
11 |
Version for Release 4 |
4.0.0 |
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06-2002 |
16 |
Version for Release 5 |
4.0.0 |
5.0.0 |
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12-2004 |
26 |
Version for Release 6 |
5.0.0 |
6.0.0 |
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06-2007 |
36 |
Version for Release 7 |
6.0.0 |
7.0.0 |
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12-2008 |
42 |
Version for Release 8 |
7.0.0 |
8.0.0 |
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12-2009 |
46 |
Version for Release 9 |
8.0.0 |
9.0.0 |
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03-2011 |
51 |
Version for Release 10 |
9.0.0 |
10.0.0 |
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09-2012 |
57 |
Version for Release 11 |
10.0.0 |
11.0.0 |
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09-2014 |
65 |
Version for Release 12 |
11.0.0 |
12.0.0 |
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12-2015 |
70 |
Version for Release 13 |
12.0.0 |
13.0.0 |
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Change history |
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Date |
Meeting |
TDoc |
CR |
Rev |
Cat |
Subject/Comment |
New version |
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03-2017 |
SA#75 |
Version for Release 14 |
14.0.0 |
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06-2018 |
SA#80 |
– |
– |
– |
– |
Version for Release 15 |
15.0.0 |
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2020-07 |
– |
– |
– |
– |
– |
Update to Rel-16 version (MCC) |
16.0.0 |
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2022-04 |
– |
– |
– |
– |
– |
Update to Rel-17 version (MCC) |
17.0.0 |