Estação base, dispositivo terminal, método de atribuição de canal de controle e método de determinação de tamanho de região

摘要

It is an object to improve the frequency use efficiency of the overall system. In order to solve the object, a base station that performs radio data communication with terminal devices by using a plurality of bands of which each has a data channel region to which a data channel is assigned and a control channel region to which a control channel is assigned. The base station includes a control channel assigning unit that assigns a control channel for the terminal device at a location in the control channel region of any band of the plurality of bands according to a band to which a data channel assigned to the terminal device belongs, and a control channel transmitting unit that transmits the control channel to the terminal device at the location assigned by the control channel assigning unit.