Patent ID: 7830829

Claim:
An FDD/CDMA transmission/reception system comprising: a CDMA transmitter and a CDMA receiver, which are connected with a radio link, (a) said CDMA transmitter comprising: a plurality of transmission antennas, a pilot signal transmission device which generates a plurality of different pilot signals assigned to respective ones of the plurality of transmission antennas, each of the pilot signals being combined with a user signal, an antenna control signal receiving device which receives via said radio link one or more antenna control signals generated by said CDMA receiver, and a signal transmission device which generates the user signal weighted by the one or more antenna control signals; and (b) said CDMA receiver comprising: a reception device which receives said pilot signals, an antenna control signal device which generates said one or more antenna control signals for weighting transmission signals from said transmission antennas based on the received pilot signals, and a transmitter which transmits the one or more antenna control signals to said CDMA transmitter and controls transmitting signals from the respective transmission antennas of said CDMA transmitter.