Patent ID: 8488724

Claim:
A method of suppressing wideband interference in a wireless communication system, the method comprising: receiving one or more first signals on a frequency band, wherein each of the first signals comprises components from a plurality of sub-channels, and wherein each of the first signals comprises noise and/or interference without a substantial signal-of-interest; converting each of the first signals into a respective plurality of first sub-band frequency components, wherein each sub-band is defined in the frequency domain; determining a respective single-tap spatial filter for each frequency sub-band using one or more corresponding first sub-band components for each respective single-tap spatial filter without analyzing a signal-of-interest; receiving one or more second signals on said frequency band, wherein each of the second signals comprises components from the plurality of sub-channels; converting each of the second signals into a respective plurality of second sub-band frequency components; and generating a corresponding plurality of filtered sub-band components by applying the respective single-tap spatial filters to the corresponding second sub-band components for each of the second signals wherein determining each respective single-tap spatial filter comprises: estimating a covariance matrix; weighting an identity matrix; generating a diagonally loaded covariance matrix by adding the weighted identity matrix to the estimated covariance matrix; and determining the inverse of the diagonally loaded covariance matrix.