BASE STATION AND TERMINAL

摘要

Provided are a base station and a terminal which implement wideband uplink data communication as well as implementing a placement method for control channels in a frame, which can be used by terminals having various terminal capabilities. In a base station (200), a control unit (270) selects a configuration pattern of an uplink subframe consisting of two slots from a first pattern in which a control channel is placed on both ends of each unit band and the control channels placed on both ends of each unit band change places between slots, and a second pattern in which a control channel is placed on both ends of an expanded band consisting of a plurality of unit bands and the control channels placed on both ends of the expanded band change places between slots. A terminal to be allocated forms an uplink signal in which the response signal is mapped to the frequency position of the control channel according to the configuration pattern information of the subframe.