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TS 44.021
Rate Adaptation on the MS-BSS Interface

3GPP‑Page   ETSI‑search   fToC↓   Partial Content →
V19.0.0 (PDF)  2025/09  45 p.
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V16.0.0  2020/06  45 p.
V15.0.0  2018/06  45 p.
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V13.0.0  2015/12  45 p.
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V11.0.0  2012/09  45 p.
V10.0.1  2011/04  45 p.
V9.0.0  2009/12  45 p.
V8.0.0  2008/12  45 p.
V7.0.0  2007/06  45 p.
V6.0.0  2005/01  45 p.
V5.2.0  2003/01  45 p.
V4.1.0  2002/09  45 p.
GSM Rel-99 v8.3.0  2000/12  49 p.
GSM Rel-98 v7.1.0  2000/06  44 p.
GSM Rel-97 v6.1.0  2000/06  45 p.
GSM Rel-96 v5.7.0  2000/06  45 p.
GSM Phase-2 v4.6.1  1995/04  20 p.
GSM Phase-1 v3.4.0  1992/02  18 p.
Rapporteur:
Dr. Belling, Thomas
Nokia Networks

full Table of Contents for  TS 44.021  Word version:  19.0.0

each clause number in 'red' refers to the equivalent title in the Partial Content
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1Scope  p. 6
2References, Definitions and Abbreviations  p. 6
2.1References  p. 6
2.2Definitions  p. 7
2.3Abbreviations  p. 7
3General approach  p. 7
3.1Overview of data rates and configurations  p. 7
4The RA0 Function  p. 9
4.1Asynchronous-to-Synchronous Conversion (RA0)  p. 9
4.2Break signal  p. 9
4.3Overspeed/Underspeed  p. 9
4.4Parity Bits  p. 10
4.5Flow Control  p. 10
5Void  p. …
6Void  p. …
7Void  p. …
8The Relay Functions RA1/RA1', RA1'/RA1", RA1'/RAA' and RA1'/RAA"  p. 10
8.1Single slot rates  p. 10
8.1.1Radio interface rate of 14,5 kbit/s  p. 11
8.1.2Radio Interface rate of 12 kbit/s  p. 11
8.1.3Radio Interface rate of 6 kbit/s  p. 12
8.1.4Radio Interface rate of 3,6 kbit/s (transparent services only)  p. 13
8.1.5Synchronisation  p. 13
8.1.6Idle frames  p. 13
8.2Multislot rates  p. 13
8.2.1AIURs up to 38,4 kbit/s using TCH/F9.6 and TCH/F4.8 channel codings  p. 14
8.2.2AIURs up to 64 kbit/s using TCH/F14.4 channel coding  p. 14
8.2.3AIUR of 48 kbit/s; Intermediate rate of 64 kbit/s; Radio interface rate of 5 x 12 kbit/s  p. 14
8.2.4AIUR of 56 kbit/s; Intermediate rate of 64 kbit/s, Radio interface rate of 5 x 12 kbit/s  p. 15
8.2.5AIUR of 64 kbit/s; Radio interface rate of 6 x 12 kbit/s  p. 15
9The EDGE multiplexing function  p. 15
9.1Data block distribution into the substreams by the Multiplexing function; TCH/F28.8 channel coding  p. 16
9.1.1AIUR of 57.6 kbit/s; Radio interface rate of 2 x 29.0 kbit/s  p. 16
9.2Data block distribution to the radio interface by the Multiplexing function; TCH/F32.0 channel coding  p. 16
9.2.1AIUR of 56 kbit/s; Radio interface rate of 2 x 32.0 kbit/s  p. 16
9.2.2AIUR of 64 kbit/s; Radio interface rate of 2 x 32.0 kbit/s  p. 16
9.3Data block distribution into the substreams by the Multiplexing function; TCH/F43.2 channel coding  p. 17
10The RA1' Function  p. 17
10.1Void  p. …
10.2TCH/F9.6 and TCH/F4.8 channel codings  p. 17
10.2.1Network Independent Clocking  p. 18
10.2.1.1Multiframe Structure  p. 18
10.2.1.2Encoding and compensation  p. 18
10.2.2Synchronisation  p. 19
10.2.3Idle frames  p. 19
10.3TCH/F14.4 channel coding  p. 19
10.3.1Multiframe structure over the radio-interface  p. 20
10.3.2Radio-interface data block for TCH/F14.4 channel coding  p. 21
10.3.3Network independent clocking  p. 21
10.3.3.1Negative compensation  p. 21
10.3.3.2Positive compensation  p. 21
11The Split/Combine and Padding-functions  p. 22
11.1Data frame distribution into the substreams/channels by the Split/Combine function  p. 22
11.1.1Data frame distribution into the substreams/channels by the Split/Combine function (TCH/F9.6 and TCH/F4.8 channel codings)  p. 22
11.1.2Data block distribution into the substreams by the Split/Combine function (TCH/F14.4 channel coding)  p. 22
11.2Substream numbering in transparent operation  p. 23
11.2.1Substream numbering for TCH/F4.8 and TCH/F9.6 channel codings  p. 23
11.2.2Substream numbering for TCH/F14.4 and TCH/F28.8 channel codings  p. 24
11.3Substream Synchronisation  p. 24
11.4Void  p. …
11.5Padding Functions  p. 24
11.5.1Padding for TCH/F9.6 and TCH/F4.8  p. 24
11.5.1.1Padding for AIUR 14,4 kbit/s:  p. 24
11.5.1.2Padding for AIUR 64 kbit/s:  p. 24
11.5.2Padding for TCH/F14.4 channel coding  p. 24
11.5.2.1Padding for AIURs up to 38,4 kbit/s  p. 24
11.5.2.2Padding for AIURs of 48 kbit/s  p. 25
11.5.2.3Padding for AIURs of 56 kbit/s  p. 25
11.5.2.4Padding for AIURs of 64 kbit/s  p. 25
11.6Handling of the E1-E3 bits in multislot operation  p. 25
12Support of Non-Transparent Bearer Services  p. 25
12.1Support of non-transparent operation for TCH/F9.6 and TCH/F4.8 channel codings  p. 25
12.2Support of non-transparent operation for TCH/F14.4 channel coding  p. 26
12.3Support of non-transparent operation for TCH/F28.8 channel coding  p. 26
12.4Support of non-transparent operation for TCH/F43.2 channel coding  p. 26
13Figures on Frame structures  p. 27
AStacks of rate adaptation  p. 32
A.1Stacks of rate adaptation for 9,6/4,8 kbit/s single slot operation  p. 32
A.2Stacks of rate adaptation for 14,4 kbit/s single slot operation  p. 34
A.3Stacks of rate adaptation for 9,6/4,8 kbit/s multi slot operation  p. 36
A.4Stacks of rate adaptation for 14,4 kbit/s multi slot operation  p. 38
A.5Stacks of rate adaptation for EDGE channels TCH28.8 and TCH/F43.2 (NT only)  p. 40
BAn example of mapping Network Independent Clocking information for TCH/F14.4 when the S-interface is deployed  p. 42
$Change History  p. 43

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