| 摘要 |
<P>PROBLEM TO BE SOLVED: To simplify a transmission device having a plurality of antennas performing delay diversity and precoding. <P>SOLUTION: The transmission device includes: a plurality of transmission antennas; conversion means for preparing a plurality of signal sequences to fit to a predetermined frequency bandwidth from one or more transmission streams associated with one of the transmission antennas; precoding means for weighting each of the plurality of signal sequences with a precoding vector selected from a code book including a plurality of numbers of predetermined precoding vectors; and means for converting an output signal from the precoding means into signals for the number of transmission antennas, and for transmitting the converted signals from their respective transmission antennas. In the precoding means, mutually different precoding vectors are applied to different signal sequences, and the correspondence between the different precoding vectors and the different signal sequences is determined by open loop control without depending on feedback from a reception device. <P>COPYRIGHT: (C)2013,JPO&INPIT |
