Patent ID: 8537922

Claim:
A method for controlling transmit-power between a wireless transmitter and a wireless receiver, comprising: calculating a threshold associated with a subcarrier between the transmitter and the receiver; receiving the subcarrier containing an information symbol at the receiver from the transmitter; determining a channel estimate of the subcarrier and a weighting vector for the information symbol; based at least on the channel estimate and the weighting vector, determining a power level of the subcarrier; comparing the power level to the threshold; generating a feedback signal to the transmitter indicating a first energy level to be used for the subcarrier based on the comparison of the power level to the threshold; subsequent to generating the feedback signal, determining a second power level of the subcarrier based at least on the channel estimate and the weighting vector; comparing the second power level to the threshold; and generating a second feedback signal to the transmitter indicating a second energy level to be used for the subcarrier based on the comparison of the second power level to the threshold.