Patent ID: 7961588
Filing Date: 2011-06-14
Classification: H04B,H04L,H04W,Y02D

Abstract:
1. A communication device for transmitting orthogonal frequency division multiplexed (OFDM) signals in a wireless communication system, the communication device comprising: means for transmitting said OFDM signals to a receiver via plurality of transmission channels wherein each of said OFDM signals comprises a plurality of subcarrier signals; and means for generating weight coefficients that are applied to each of said plurality of subcarrier signals and for controlling an amplitude and/or phase of said plurality of subcarrier signals as a function of said weight coefficients, wherein said weight coefficients are chosen to improve performance of a total of combined OFDM signals at the receiver, and the performance of the total combined OFDM signals is expressed by said weight coefficients and a Hermitian matrix having elements of channel vectors, and the weight coefficients are chosen based on an Eigenvector of an Eigenvalue of said Hermitian matrix.