Patent ID: 7672643

Claim:
A method comprising: transmitting a first signal via a transmit chain in a wireless device, wherein a first portion of the first signal leaks over into a receive chain of the wireless device and generates higher order products that interfere with a second signal being received by the wireless device; diverting a second portion of the first signal from the transmit chain into cancellation circuitry coupled to the receive chain to manipulate an amplitude and phase of the second portion before combining the manipulated second portion with the second signal and first portion to at least partially cancel interference caused by the first portion; after downconverting, filtering a remainder portion of the first portion from the second signal in the receive chain, wherein the remainder portion was not cancelled by the manipulated second portion; detecting a power level of the remainder portion; comparing the power level to a threshold value; and modifying an amplitude and phase configuration of the cancellation circuitry based on a result of comparing the power level to the threshold value.