Patent ID: 8693446

Claim:
A base station configured to transmit a downlink burst to a mobile station by use of a frame structure having a first region and a second region, the first region being a control region, the base station comprising: an allocator unit configured to allocate allocation information indicating a time-frequency resource used for a transmission of the downlink burst as transmission information in the first region, and to allocate the downlink burst as transmission information in the time frequency resource of the second region; and a transmitter unit configured to transmit the allocation information of the downlink burst with a non-directional beam, and to transmit the downlink burst with a non-directional beam or a directional beam; wherein, when detecting an unused region in the first region where no transmission information is allocated after allocating the transmission information in the first region in the frame structure, the allocator unit is configured to repeatedly allocate the allocation information in the detected unused region, as the transmission information in the first region.