FIELD: radio engineering, communication.
SUBSTANCE: in the wireless communication base station device, a modulation unit (12) executes a modulation process on Dch data after encoding so as to generate a Dch data symbol. A modulation unit (22) executes a modulation process on the Lch data after encoding so as to generate an Lch data symbol. An allocation unit (103) allocates the Dch data symbol and the Lch data symbol for each subcarrier constituting an OFDM symbol and outputs the allocated subcarrier to a multiplexing unit (104). The allocation unit (103) allocates the Dch data symbol for a plurality of resource blocks, where one Dch is arranged with an interval equal to a multiple number of resource blocks constituting a group of resource blocks.
EFFECT: providing a wireless communication base station device which can prevent reduction of system throughput due to deterioration of the quality of the efficiency of using communication channel resources for frequency-division transmission when transmission with dispatch frequency and frequency-division transmission are carried out simultaneously during multi-carrier communication.
25 cl, 14 dwg
