A receiver receives signals and noise over a frequency spectrum of a desired received signal. The desired received signal is spread using code division multiple access. The received signals and noise are demodulated to produce a demodulated signal. The demodulated signal is despread using a code uncorrelated...http://www.google.com/patents/US7502406?utm_source=gb-gplus-sharePatent US7502406 - Automatic power control system for a code division multiple access (CDMA) communications system
