Patent ID: 7912505

Claim:
A base station comprising: a plurality of mixers configured to mix a plurality of data signals with different code sequences; a combiner configured to combine the plurality of mixed data signals to produce a combined signal; an adjustable signal limiter configured to produce a limited signal wherein the adjustable signal limiter is coupled to an output of the combiner; a mixer configured to modulate the limited signal up to radio frequency; a power measurement device configured to measure a power of the modulated limited signal over a predetermined time period; an amplifier configured to amplify the modulated limited signal to a predetermined power level to produce an amplified signal; an antenna configured to radiate the amplified signal, and a processor coupled to an output of the amplifier and configured to: determine an average of a square of a magnitude of the amplified signal over the predetermined time period; measure a power of the amplified signal; determine a clipping level of the adjustable signal limiter based on the measured power of any one of: the modulated limited signal or the amplified signal; and scale down the output of the power measurement device by a gain of the amplifier.