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Content for  TS 44.021  Word version:  16.0.0

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1  ScopeWord‑p. 6

The present document defines the rate adaptation functions to be used in PLMN Mobile Stations (MS)s for adapting terminal interface data rates to the Mobile Station - Base Station System (MS-BSS) interface data rates in accordance with TS 43.010.
The provision of these functions will depend on the services a particular station is designed to support.
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2  References, Definitions and Abbreviations

2.1  References

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP specifications".
[2]
TS 22.034: "High Speed Circuit Switched Data (HSCSD) -Stage 1".
[3]
TS 43.010: "GSM Public Land Mobile Network (PLMN) connection types".
[4]
TS 23.034: "High Speed Circuit Switched Data (HSCSD) - Stage 2 Service Description".
[5]
TS 45.003: "Channel coding".
[6]
TS 27.001: "General on Terminal Adaptation Functions (TAF) for Mobile Stations (MS)".
[7]
TS 27.002: "Terminal Adaptation Functions (TAF) for services using asynchronous bearer capabilities".
[8]  Void.
[9]
TS 48.020: "Rate adaption on the Base Station System - Mobile-services Switching Centre (BSS - MSC) interface".
[10]
ITU-T Recommendation V.110: "Support of data terminal equipments (DTEs) with V-Series interfaces by an integrated services digital network".
[11]
ITU-T Recommendation X.30: "Support of X.21,X.21 bis and X.20 bis based terminal equipments (DTEs) by integrated services digital network (ISDN)".
[12]
TS 48.060: "Inband control of remote transcoders and rate adaptors for Enhanced Full Rate (EFR) and full rate traffic channels".
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2.2  DefinitionsWord‑p. 7

For the purposes of the present document, the following terms and definitions apply.
Overall data stream:
The data stream in those parts of the network where the data flow is not split into multiple channels.
Substream:
Stream of data with explicit or implicit numbering between splitter and combiner functions.
Channel:
A physical full rate channel on the radio interface (TCH/F) independent of the contents
Multislot intermediate rate:
Intermediate rate per substream in those parts of the network where the overall data stream is split into substreams.
Intermediate rate:
Intermediate rate in the overall data stream.
Substream rate:
The user rate including padding, if applicable, on one individual substream
EDGE channel:
A general term referring to channels based on 8PSK modulation; i.e. TCH/F28.8, TCH/F32.0, and TCH/F43.2.
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2.3  Abbreviations

Abbreviations used in the present document are listed in TR 21.905.

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