Patent ID: 8868124
Filing Date: 2014-10-21
Classification: H04B,H04L,H04W

Abstract:
1. A method for beamforming in a wireless communication system, the system comprising a plurality of transmit antennas for a transmitter and at least one receive antenna of a receiver, the method comprising: initiating beamforming on a communication channel between the plurality of transmit antennas and the at least one receive antenna; the communication channel including two data streams; reallocating the transmit power among tones of a data stream in the two data streams such that the received SNR on each weaker tone of the beamformed data stream is increased and the received SNR on each stronger tone of the beamformed data stream is proportionately decreased such that the resultant SNR on all tones of the beamformed data stream will be substantially same; determining whether the transmit power of at least one of the two scaled beamformed streams is too high for the receiver; and if the transmit power is too high; reducing the transmit power of both scaled beamformed streams by the same amount to prevent overload of the system.