Patent ID: 7965783
Filing Date: 2011-06-21
Classification: H04B,Y02D

Abstract:
1. A method comprising: receiving a plurality of signals at a plurality of antennas of a first wireless station, the plurality of signals being transmitted from antennas on a second wireless station; computing a plurality of beamforming weighting vectors from the received plurality of signals; calculating a pre-coding parameter matrix for a beamformed multiple-input multiple-output (MIMO) channel between the first wireless station and the second wireless station from the plurality of beamforming weighting vectors and the plurality of signals received at the first wireless station; determining a normalized transmitting power distribution for the beamformed MIMO channel; and applying weights based on the pre-coding parameter matrix to data streams to be transmitted from the plurality of antennas of the first wireless station to the second wireless station and allocating transmitting power to the beamformed MIMO channel for the data streams according to the normalized transmitting power distribution.