| 摘要 |
In a service area of base station 101 is provided at least one relay station 102 that executes processing for non real time data repeat request from communication terminal 103 as a substitute for base station 101, thereby removing the processing for non real time data repeat from base station 101. Thus, processing loads on base station 101 are reduced and the transmission efficiency is improved over the entire system, whereby it is possible to increase the number of communication terminals that base station 101 handles.
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