METHOD AND DEVICE FOR EFFICIENT IN-BAND DIM-AND-BURST SIGNALING AND HALF-RATE MAX OPERATION IN VARIABLE BIT-RATE WIDEBAND SPEECH CODING FOR CDMA WIRELESS SYSTEMS

摘要

In the method and device for interoperating a first station using a firstcommunication scheme and comprising a first coder and a first decoder with asecond station using a second communication scheme and comprising a secondcoder and a second decoder, communication between the first and secondstations is conducted by transmitting signal-coding parameters related to asound signal from the coder of one of the first and second stations to thedecoder of the other station. The sound signal is classified to determinewhether the signal-coding parameters should be transmitted from the coder ofone station to the decoder of the other station using a first communicationmode in which full bit rate is used for transmission of the signal-codingparameters. When classification of the sound signal determines that the signal-coding parameters should be transmitted using the first communication mode andwhen a request to transmit the signal-coding parameters from the coder of onestation to the decoder of the other station using a second communication modedesigned to reduce bit rate during transmission of the signal-codingparameters is received, a portion of the signal-coding parameters from thecoder one station is dropped and the remaining signal-coding parameters aretransmitting to the decoder of the other station using the secondcommunication mode. The dropped portion of the signal-coding parameters areregenerated before the decoder of the other station decodes the signal-codingparameters.