| 摘要 |
PROBLEM TO BE SOLVED: To improve a reception probability for DL-MAP without considerably increasing a ratio occupied by DL-MAP in a frame structure. SOLUTION: A WiMAX compatible base station BS includes: an allocator unit 10B, 10C configured to allocate DL-MAP as transmission information in a MAP region, and to allocate the downlink burst as transmission information in a downlink burst region; and a transmitter unit 10F configured to transmit the DL-MAP with a non-directional beam, and to transmit the downlink burst with a non-directional beam or a directional beam. When detecting an unused region A where no transmission information is allocated after allocating the transmission information in the MAP region and the downlink burst region in the frame structure, the allocator unit 10B is configured to reallocate, by use of the detected unused region A, the allocation information of the downlink burst as the transmission information in the MAP region. COPYRIGHT: (C)2011,JPO&INPIT
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