| 摘要 |
A radio base station apparatus includes a determining unit that dynamically determines, based on both quality information and traffic information, collected for each of a first link used for direct communication between a first radio terminal and the base station apparatus, a second link used for direct communication between a second radio terminal and a fixed radio relay apparatus, and a third link used for relay transmission between the base station apparatus and the relay apparatus, of sub-frames in a radio frame as radio resources, a number of sub-frames to be allocated to the each of the first, second and third links and an allocation timing therefor; and a notifying unit that notifies the relay apparatus of allocation information including the number of sub-frames to be allocated to the third link used for the relay transmission and the timing therefor in a period of at least once in the frame.
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