Patent ID: 8630598
Filing Date: 2014-01-14
Classification: H03D

Abstract:
1. A method comprising: performing an upconversion operation on a first baseband signal using a first oscillator signal to generate a transmit signal; receiving via a feedback loop the generated transmit signal; performing a downconversion operation on the received transmit signal using a second oscillator signal, said second oscillator signal being different in frequency from said first oscillator signal, said downconversion operation producing a first receiver side baseband signal, a first receiver side image baseband signal, and a first local oscillator leakage signal; determining a relative power of the first receiver side baseband signal and first receiver side image baseband signal; measuring the absolute power of the first local oscillator leakage signal; and during a data transmission time period following said measurement of the absolute power of the first local oscillator leakage signal using said measured absolute power to perform a DC offset compensation operation on a transmitted signal tone.