Method and apparatus for group encoding signals

Details Method and apparatus for group encoding signals Method and apparatus for group encoding signals

H - Electricity

03

M

H03M 7/00 (2006.01) G10L 19/14 (2006.01) H04L 1/00 (2006.01) G10L 3/00 (1995.01)

Patent

CA 2157024

A code division multiple access (CDMA) communication system reduces system self-interference and enhances system capacity by making rate selection decisions for individual speech encoders in concert with other speech encoders. The system utilizes perceptually weighted error metrics (401) as input into a rate controller (404) which determines and provides selected rates (402) back to the encoders (105). The system provides optimum voice quality and system capacity in that it allows specific encoders to decrease their rate, which improves capacity, as necessary while allowing other encoders to maintain their rates. This prevents needless degradation in voice quality at those times when system capacity needs to be temporarily increased.

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