Method for enhancing voice quality in CDMA communication system using variable rate vocoder

摘要

A CDMA communication system including a variable rate vocoder transmits voice data without restriction of an encoding rate of the vocoder and transmits a signaling message so that voice quality of the CDMA communication system can be improved. If the signaling message is an emergent signaling message to be transmitted within a certain time, the encoding rate of the vocoder is restricted to a half rate, a quarter rate, or an eighth rate. Thus, the signaling message can be transmitted with the voice data within the certain time, so that delay of the signaling message transmission can be prevented.