Patent ID: 7881265

Claim:
A method for tuning a beamformed signal in multiple-input/multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) wireless communications that use a plurality of sub-carriers and a plurality of eigenbeams, the method comprising: creating eigenbeams by grouping the eigenvalues for all subcarriers; determining an average eigenvalue per eigenbeam; determining a first gain according to the average eigenvalue relative to each individual eigenvalue; determining a second gain based on a relative modulation order of each eigenbeam to a first eigenbeam and a relative channel coding gain of each eigenbeam to the first eigenbeam; determining a total gain of each of the plurality of sub-carriers and eigenbeams, based on the average eigenvalues, the first gain and the second gain; and applying the total gain to each of the sub-carriers and each of the eigenbeams.