Patent ID: 8948302
Filing Date: 2015-02-03
Classification: H04B,H04L

Abstract:
1. A method for transmitting an orthogonal frequency division multiplex (OFDM) signal via a plurality of antennas in a wireless transmission system, the OFDM signal carried by a plurality of subcarrier frequencies, the method comprising: acquiring channel characteristics of one of the plurality of subcarrier frequencies; determining, by processing circuitry, a transmission power allocation vector for the one of the plurality of subcarrier frequencies based on the channel characteristics; and allocating, by the processing circuitry, a power for the one of the plurality of subcarrier frequencies to an associated one of the plurality of antennas based on multiplication with the transmission power allocation vector, wherein the acquiring, the determining, and the allocating are performed for each of the plurality of subcarrier frequencies, and the power allocated to the one of the plurality of subcarrier frequencies is normalized with a normalized power allocation vector that is determined for the one of the plurality of subcarrier frequencies.