Patent ID: 6941153

Claim:
A radio communication apparatus having maximum channel capacity, comprising: a transmitter for determining whether an information signal is a pilot symbol, checking the presence of feedback information if it is determined that the information signal is not the pilot symbol, recovering the feedback signal from a received feedback signal if it is determined that the feedback information is present, allocating transmission power of each of a plurality of base-band signals of each transmitting antenna containing the information signal input from outside, using the feedback information recovered from the feedback signal, modulating the base-band signals with the allocated transmission power, and converting the base-band signals into RF signals and transmitting the RF signal; and a receiver for estimating a channel response experienced during the transmission of received RF signals, recovering the information signal from the received RF signals using the estimated channel response, and transmitting information regarding the transmission power of each transmitting antenna, which is calculated based on the estimated channel response and is to be allocated, as the feedback signal to the transmitter by radio.