Patent ID: 8824988

Claim:
A method for reciprocal mixing noise cancellation, the method comprising: receiving a baseband signal down-converted to baseband using a local oscillator (LO), the baseband signal comprising a wanted signal and a reciprocal mixing noise, at least partially overlapping the wanted signal, the reciprocal mixing noise being due to mixing of a blocker signal with a phase noise of the LO during down-conversion; performing blocker recovery on the baseband signal and generating a blocker estimate signal from the baseband signal; measuring the phase noise of the LO and generating a phase noise measurement signal based on the measured phase noise of the LO; processing the blocker estimate signal and the phase noise measurement signal and generating a reconstructed noise signal comprising the overlapping reciprocal mixing noise; and subtracting the reconstructed noise signal from the baseband signal and providing the wanted signal substantially free from to the reciprocal mixing noise.