| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide radio transmission equipment and a radio transmission method enabling reduction of the number of retransmissions, by setting an RV parameter for an appropriate number of transmission times considering the effect of a Doppler frequency, and by enabling setting of a transmission bit pattern corresponding to the change of the Doppler frequency in transmission signals. <P>SOLUTION: An RV pattern selector 102 stores at least two RV parameter tables for QPSK and for 16-QAM. Based on the relation of correspondence between an estimated number of transmissions being input from a section 101 for estimating the number of transmission times and a Doppler frequency fD being input after estimated from the transmission signal, the RV pattern selector 102 selects and outputs a corresponding RV parameter Xrv (for example, RV_a_T1) from the RV parameter tables to a channel encoder 103. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
