Wideband interference mitigation for devices with multiple receivers

A machine readable medium having machine executable instructions stored thereon, that when executed by a computing device are configured to:

• receive one or more first signals on a frequency band, wherein each of the first signals comprises components from a plurality of sub-channels;
• convert 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;
• determine a respective spatial filter for each frequency sub-band using one or more corresponding first sub-band components for each respective spatial filter;
• receive one or more second signals on said frequency band, wherein each of the second signals comprises components from the plurality of sub-channels;
• convert each of the second signals into a respective plurality of second sub-band frequency components;
• and
• generate a corresponding plurality of filtered sub-band components by applying the respective spatial filters to the corresponding second sub-band components for each of the second signals.

A device configured to suppress interference in a wireless communication system, the device comprising:

• at least one input configured to receive at least one signal on a frequency band, wherein each signal comprises components from a plurality of sub-channels;
• at least one filter configured to convert said at least one signal from the time domain into a corresponding plurality of sub-band frequency components, wherein each sub-band is defined in the frequency domain;
• a controller configured to execute code;
• and
• non-transitory computer readable memory storing code that when executed by the controller is configured to:
• determine a respective spatial filter for each frequency sub-band using one or more first sub-band components for each respective spatial filter, wherein the one or more first sub-band components are produced by the at least one filter from a corresponding one or more first signals received at the at least one input;
• and
• apply the respective spatial filter to one or more second sub-band components to produced filtered sub-band components, wherein the one or more second sub-band components are produced by the at least one filter from a corresponding one or more second signals received at the at least one input.

A method of suppressing interference in a wireless communication system, the method comprising:

• receiving a first signal on a frequency band, wherein the first signal comprises components from a plurality of sub-channels;
• converting the first signal into a respective plurality of first sub-band frequency components, wherein each sub-band is defined in the frequency domain;
• determining a respective spatial filter for each frequency sub-band using corresponding first sub-band components for each respective spatial filter;
• receiving a second signal on said frequency band, wherein the second signal comprises components from the plurality of sub-channels;
• converting the second signal into a respective plurality of second sub-band frequency components;
• and
• generating a corresponding plurality of filtered sub-band components by applying the respective spatial filters to the corresponding second sub-band components.