3 Definitions and abbreviations

08.613GPPIn-band control of remote transcoders and rate adaptors for half rate traffic channelsTS

3.1 Definitions

No specific definitions apply to the present document.

3.2 Abbreviations

For the purposes of the present document, the following abbreviations apply:

ACS Active_Codec_Set

AMR Adaptive Multi-Rate

BSC Base Station Controller

BTS Base Transceiver Station

CCU Channel Codec Unit

CMC Codec_Mode_Command

CMI Codec_Mode_Indication

CMR Codec_Mode_Request

DFE Downlink Frame Error

ICM Initial_Codec_Mode

PAB Phase Alignment Bit

PAC Phase Alignment Command

RA Rate Adaption

RIF Request or Indication Flag

TAC Time Alignment Command

TAE Time Alignment Extension

TFO Tandem Free Operation

TFOE TFO Enable

TRAU Transcoder and Rate Adaption Unit

UFE Uplink Frame Error

Other abbreviations used in the present document are listed in GSMĀ 01.04.