| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve throughput by introducing new precoding capable of sufficiently utilizing performance of the precoding in a cellular system. <P>SOLUTION: A terminal device having a plurality of transmission antennas, for performing precoding of a transmission signal, includes: a codebook selecting section 251 for selecting any one from a plurality of codebooks including a plurality of precoding matrices on the basis of the number of the transmission antennas and transmission parameters other than the number of the transmission antennas; and a precoding matrix selecting section 255 for selecting any one precoding matrix from the selected codebook on the basis of a PMI (Precoding Matrix Indicator). <P>COPYRIGHT: (C)2013,JPO&INPIT |
