Patent ID: 8693577

Claim:
A communication method for use by a wireless communication device, comprising: converting between a first plurality of baseband signals and a second plurality of baseband signals by performing a first portion of weighting and combining in a baseband domain wherein weights for the first portion of the weighting are obtained from an eigenvector corresponding to a largest eigenvalue of a cross-correlation matrix converting between the second plurality of baseband signals and a first plurality of RF signals using a plurality of RF chains, wherein the plurality of RF chains is less than a number of antennas in the wireless communication device; and converting between the first plurality of RF signals and a second plurality of RF signals by performing a second portion of weighting and combining in the RF domain, wherein the second plurality of RF signals equals the number of antennas and weights for the second portion of the weighting are obtained from the eigenvector corresponding to the largest eigenvalue of the cross-correlation matrix.