Patent ID: 8023917

Claim:
An interference rejection unit for at least partially rejecting an interferer from an input signal, the unit comprising: an interferer detector for detecting the phase of an interferer in the input signal; a signal generator for generating a cancellation signal in dependence on the phase detected by the interferer detector; a signal combiner for combining the input signal with the cancellation signal to generate an output signal in which the interferer is at least partially cancelled from the input signal; a wanted signal estimator for forming a first estimate signal by filtering the input signal or a signal generated in dependence on the input signal to selectively reject therefrom signals of the form of the interferer; and an interferer estimator for forming a second estimate signal by cancelling the first estimate signal from the input signal; and wherein the interferer detector is arranged to detect the phase of the interferer in the input signal by detecting the phase of the interferer in the second estimate signal.