METHOD AND SYSTEM FOR RADIO RELAY TRANSMISSION, RECEIVER AND TRANSMITTER

摘要

PROBLEM TO BE SOLVED: To equalize a difference in length of propagation paths (difference in relay distance) between a plurality of antennas of a transmitter and a receiver corresponding to the positions of a plurality of relay devices for performing MIMO (multi-input multi-output) relay transmission without deteriorating frame utilization efficiency. SOLUTION: The system is provided with the transmitter having a means for dividing an information signal into a plurality of transmission systems and a means for individually transmitting the divided information signal as a radio signal of the same frequency from a plurality of antennas; a plurality of relay devices each having a means for relaying the radio signal transmitted from the transmitter to re-transmit the relayed signal; and the receiver having a means for causing a plurality of antennas to receive radio signals transmitted from the plurality of relay devices, and delaying and equalizing the reception signal of each antenna, a means of performing propagation estimation for each antenna from the reception signal of each antenna and dividing the signals into signals corresponding to a plurality of transmission systems, a means for each decoding the divided signals, and a means for compositing each of decoded signals to output a signal corresponding to an information signal. COPYRIGHT: (C)2006,JPO&NCIPI