Patent ID: 8374155
Filing Date: 2013-02-12
Classification: H04B,H04L,H04W

Abstract:
1. A method for power loading multiple-input/multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) wireless communications, the method comprising: calculating eigenvalues of a channel correlation matrix for each of a plurality of subcarriers; ranking the eigenvalues; grouping same ranked eigenvalues across all subcarriers to generate a plurality of eigenbeams; calculating an average eigenvalue for each eigenbeam; calculating a first gain for each subcarrier and eigenbeam based on the average eigenvalue for each eigenbeam relative to each eigenvalue; calculating a second gain for each eigenbeam based on a strongest average eigenvalue relative to each average eigenvalue; calculating a third gain for each subcarrier and eigenbeam based on the first gain and the second gain; and applying the third gain to each corresponding subcarrier and eigenbeam.