Patent ID: 6839335

Claim:
A radio communication apparatus comprising: a plurality of antennas; a receiver that receives a radio signal comprising a plurality of subcarrier signals through said plurality of antennas, said plurality of subcarrier signals comprising a plurality of data that are spread over a frequency axis and that are code division multiplexed and frequency division multiplexed; a detector that, on a per subcarrier basis and on a per antenna basis, detects an amplitude level of said radio signal received through said plurality of antennas; a selector that, on a per subcarrier basis, makes a comparison of the detected amplitude levels between said plurality of antennas and selects one of said antennas through which said radio signal gains a largest amplitude level; and a despreader that, on a per subcarrier basis, despreads said radio signal received through the selected antenna with a predetermined spreading code and obtains said plurality of data multiplexed upon said plurality of subcarrier signals.