Patent ID: 8634790

Claim:
A method of processing a desired signal in a wireless communication system, comprising: amplifying the desired signal with a first gain having a coarse resolution; downconverting the amplified signal from radio frequency (RF) to baseband with a single frequency downconversion stage configured to receive a digital offset control signal and an analog offset control signal independent of the digital offset control signal, wherein and a gain control value of the first gain, the digital offset control signal, and the analog offset control signal are derived at least in part from a value of a DC offset of the baseband and the digital and analog offset control signals are separately applied in different stages during the downconverting; digitizing the downconverted signal to provide samples; correcting for the DC offset in the downconverted signal with a DC loop; and digitally amplifying the samples with a second gain having a fine resolution to provide output data having a desired signal amplitude.