A method for adjusting the rate of change of the reverse link transmission power level of a code division multiple access system

摘要

To a method of adjusting a rate of change of a transmission power level in a reverse link of a code division multiple access system using a variable voice coder. In this method, at the transmitting end, the rate of voice data to be transmitted is checked and it is judged whether it is 9600, 4800, 2400 or 1200 bits per second. If the rate is 9600 bits per second, the symbol rate is 4800 bits per second. The transmission power level is reduced to 1/4 level, the transmission power level is reduced to 1/8 level after the symbol repetition is performed seven times when the transmission power level is 1200 bits per second The receiver checks the received voice data rate to determine whether it is 9600, 4800, 2400, or 1200 bits per second. If the received voice data rate is 9600 bits per second, it repeats 2 symbols at 4800 bits per second, Combining the repeated four symbols if the number of bits is 2400 bits, and combining the repeated 8 symbols if the number of bits is 1200 bits per second.