| 摘要 |
For the achievement of a radio base station and a mobile communication system wherein the transmission time of retransmission data or ordinary data at handover time is shortened, thereby securing a transmission assignment time, the radio base station is composed of a buffer holding communication data to a terminal, an extractor extracting a communication request signal from a received signal, and a scheduler controlling a transmission of the communication data based on an output signal of the extractor. The scheduler, upon detection of a handover request, controls the buffer so as to preferentially perform the data transmission by raising an order of the data transmission for a handover object terminal before executing the handover. <IMAGE>
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