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ETSI TS 146 062
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ETSI TS 146 062 Digital cellular telecommunications system (Phase 2+); Comfort noise aspects for Enhanced Full Rate (EFR) speech traffic channels (3GPP TS 46.062 version 14.0.0 Release 14)
standard by European Telecommunications Standards Institute, 04/01/2017
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Full Description
The present document gives the detailed requirements for the correct operation of the background acoustic noise evaluation, noise parameter encoding/decoding and comfort noise generation in Mobile Stations (MSs) and Base Station Systems (BSSs) during Discontinuous Transmission (DTX) on Enhanced Full Rate speech traffic channels.The requirements described in the present document are mandatory for implementation in all GSM MSs capable of supporting the Enhanced Full Rate speech traffic channel.
The receiver requirements are mandatory for implementation in all GSM BSSs capable of supporting the Enhanced Full Rate speech traffic channel, the transmitter requirements only for those where downlink DTX will be used.
In case of discrepancy between the requirements described in the present document and the fixed point computational description of these requirements contained in GSM 06.53 [2], the description in GSM 06.53 [2] will prevail.