摘要 |
A control section ( 110 ) recognizes the type of data included in a transmission signal and outputs a control signal (C 1 ) to an S/P conversion section ( 101 ) and a spreading control section ( 107 ). The S/P conversion section ( 101 ) apportions a specific type of data output from the control section ( 110 ) to different transmission systems. Spreading sections ( 102, 103 ) carry out spreading processing on the specific type of data output from the S/P conversion section ( 101 ) with different spreading codes assigned thereto under the control of the spreading control section ( 107 ). The data output from the spreading sections ( 102, 103 ) is transmitted by radio through addition sections ( 104 - 1, 104 - 2 ), transmission sections ( 105 - 1, 105 - 2 ) and antennas ( 106 - 1, 106 - 2 ). In this way, it is possible to improve the reception performance on the receiving side for specific data while maintaining the transmission efficiency of an MIMO communication system.
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