| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce frequency of blind decoding in a mobile station, with no increase in overhead caused by notification information. <P>SOLUTION: A radio communication base station device can reduce frequency of blind decoding in a mobile station, with no increase in overhead caused by notification information. A CCE allocation part (104) of the device allocates allocation information allocated to a PDCCH inputted from modulation parts (103-1) to (103-K) to a specific search space that corresponds to a CCE aggregation size of the PDCCH among a plurality of search spaces. An arrangement part (108) arranges the allocation information to a downlink resource corresponding to the CCE of the specific allocated search space among the downlink resources assured for the PDCCH. A radio transmission part (111) transmits an OFDM SYMBOL to which the allocation information is arranged to a mobile station from an antenna (112). <P>COPYRIGHT: (C)2012,JPO&INPIT |
