Patent ID: 7577210
Filing Date: 2009-08-18
Classification: H04B,H04W

Abstract:
1. A method of communicating data frames, comprising: transmitting a respective data frame from each of a plurality of transmitter antennas of a transmitter; boosting a power of any data field that is of a predetermined data type within the respective data frames to a maximum available power of the transmitter; wherein the predetermined data type is for a channel estimation preamble; receiving the respective data frames transmitted by the transmitter antennas; determining channel coefficients from the channel estimation preambles of the received data frames; determining whether any channel estimation preamble is boosted significantly enough for the channel coefficients to increase using the channel coefficients; adjusting the channel coefficients if any channel estimation preamble is boosted significantly enough; and not adjusting the channel coefficients if the channel estimation preamble is not boosted significantly enough; wherein data fields of the predetermined data type within the respective data frames for the transmitter antennas have time orthogonality; and wherein a data field that is not of the predetermined data type is generated with a divided power that is a total available power of the transmitter divided by a number of the transmitter antennas.