Method and apparatus for low power-rise power control using sliding-window-weighted QoS measurements

摘要

A system and method for adjusting the power control target for a spread-spectrum communication system 110 is disclosed. A preferred embodiment comprises correcting a power control target 128 based upon the difference between a filtered series of actual error signals 124 and the expected number of errors 126 over a properly determined time window. By using a filtered series of actual error signals, the power control target update step-size is adaptive to the channel conditions, and the power-rise is reduced, thereby reducing power requirements and signal dropouts. The invention finds application, for example, in personal communication devices such as cellular telephones and may be implemented using a digital signal processor (DSP).