TRANSMITTING/RECEIVING APPARATUS FOR CLOSED LOOP SPACE TIME BLOCK CODE SYSTEM HAVING MULTIPLE INPUT MULTIPLE OUTPUT ANTENNAS AND METHOD THEREOF, AND TRANSMITTING POWER ALLOCATION METHOD THEREOF

摘要

The present invention relates to transmit power allocation method in a transmission and reception apparatus and method for a closed-loop space-time block encoding system having a transmit and receive antenna and multiple, that system. In particular, the transmitting apparatus to the space-time block coding the signal to be transmitted to the receiver from the space-time block coding and generates signals that can be transmitted over multiple transmit antennas. Applying the weight supplying unit time block encoder signals of the weight so that the maximum power allocated to the signal supplied to the transmit antenna corresponding to the transmission channel having the best channel state is output from, and outputs to the multiple transmit antennas. The multiple transmit antennas are transmitted to the receiving device receives the electric power supply unit assigned to the signal from the weight. Wherein the transmit antenna information corresponding to the transmission channel condition is best channel is determined by the mutual comparison of the parameters of the transmission channel estimated by the receiver, it is fed back to the transmitting device through the specific feedback path. According to the invention, the received signal of the receiver is maximized in a closed loop space-time block coding system environment with a MIMO-to-noise ratio, thereby it is possible to ensure an improved bit error rate as compared with the conventional. ; MIMO, multiple-input multiple-output, multiple transmit antennas, multiple receive antennas, a closed-loop space-time block coding system, the power allocation, the channel estimation parameters, the channel state