RADIO COMMUNICATION SYSTEM, BASE STATION DEVICE, MOBILE STATION DEVICE, RADIO TRANSMISSION METHOD, AND RADIO RECEPTION METHOD

摘要

A base station device time-multiplexes a first-type sub-frame to which first-type data is allocated and a second-type sub-frame to which second-type data is allocated. The base station device includes: a radio resource controller that determines a type of each of sub-frames; a first-type control signal generator that generates a first-type control signal including items according to the type of the sub-frame to be allocated; and a second-type control signal generator that generates a second-type control signal that is allocated to a predetermined region of each of the sub-frames, the second-type control signal indicating a region in the sub-frame to be allocated, the first-type control signal being allocated to the region, the second-type control signal further indicating, in addition to the region, a type of the sub-frame to be allocated when the sub-frame to be allocated is specified as a sub-frame to which the first-type sub-frame is allocatable by first-type sub-frame candidate information that specifies a sub-frame to which the first-type sub-frame is allocatable, the first-type sub-frame candidate information being previously stored. Accordingly, the type of sub-frame can be determined without causing a decrease in transmission efficiency. Additionally, the number of downlink control channel decoding processes can be decreased.