TRANSMISSION DEVICE, RECEPTION DEVICE, TRANSMISSION METHOD, RECEPTION METHOD, WIRELESS COMMUNICATIONS SYSTEM, AND COMMUNICATIONS METHOD

摘要

In a base station (10), an area candidate group setting unit (11) determines a start position in a control channel element sequence, on the basis of a terminal number and a sub-frame number, and sets area candidate groups from said start position. A first area candidate group and a second area candidate group that have been set have matching start positions and matching leading positions for each mapping area candidate. The first area candidate group corresponds to a first modulation multi-value number among a plurality of modulation multi-value numbers. The second area candidate group has the same linking level as the first area candidate group, and corresponds to a second modulation multi-value number that differs from the first modulation multi-value number.