Techniques for determining covariance measures based on correlation criteria

A device, comprising:

• a plurality of antenna ports configured to receive radio signals from a plurality of antennas;
• a plurality of sets of equalizer taps configured to generate multi-path signals based on the received radio signals, wherein each set of the equalizer taps is coupled to a respective one of the plurality of antenna ports;
• a first unit configured to assign a first plurality of equalizer taps of the sets of equalizer taps to a first subset and to assign a second plurality of equalizer taps of the sets of equalizer taps to a second subset;
• and
• a second unit configured to determine a first covariance measure associated with the first plurality of equalizer taps of the first subset based on a first correlation criterion and to determine a second covariance measure associated with the second plurality of equalizer taps of the second subset based on a second correlation criterion.

A method, comprising:

• receiving signals at a plurality of sets of equalizer taps, wherein each set of the equalizer taps is coupled to a respective one of a plurality of antenna ports;
• and
• determining data corresponding to a noise and interference covariance matrix based on the received signals, wherein a first part of the noise and interference covariance matrix comprises a first covariance measure associated with a first plurality of the equalizer taps of a first subset of the sets of equalizer taps,
• wherein the first covariance measure is based on a first correlation criterion, and a second part of the noise and interference covariance matrix comprises a second covariance measure associated with a second plurality of the equalizer taps of a second subset of the sets of equalizer taps, wherein the second covariance measure is based on a second correlation criterion.