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Work Item Reference | ETSI Doc. Number |
STF | Technical Body in Charge |
Download Standard
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| RE/SMG-020681R1 | ETS 300 729 | 012 | SMG 02 | ||||
| Current Status (Click to View Full Schedule) |
Edition | Cover Date | Standstill | Creation Date | |||
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2 | 2000-04-28 | View Standstill Information | 1999-11-16 | |||
| Rapporteur | Technical Officer | Harmonised Standard | |||||
Paul Etienne Folacci
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John M Meredith
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No | View Transposition Data | ||||
| Title |
Digital cellular telecommunications system; Discontinuous Transmission (DTX) for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.81 version 5.2.1 Release 1996) |
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Scope and Field of Application |
This draft European Telecommunication Standard (ETS) gives a description of the general baseband operation of enhanced full rate speech traffic channels in the transmitter and in the receiver of GSM Mobile Stations and Base Station Systems during Discontinuous Transmission (DTX). For clarity, the description is structured according to the block diagrams in figures 1 and 4. Except in the case described next, this structure of distributing the various functions between system entities is not mandatory for implementation, as long as the operation on the air interface and on the speech decoder output remains the same. In the case of BSSs where the speech transcoder is located remotely in the Base Station Controller (BSC), the implementation of the interfaces between the DTX handlers and the Radio Sub System (RSS) as described in this draft ETS together with all their flags is mandatory, being part of the A-bis interface as described in GSM 08.61. The DTX functions described in this technical specification are mandatory for implementation in the GSM MSs. The receiver requirements are mandatory for implementation in all GSM BSSs, the transmitter requirements only for those where downlink DTX will be used. |
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Supporting Organizations |
Not Available | ||||||
