摘要 |
Among a plurality of radio base stations, to a radio base station whose transmission delay time between a base station control device and its own station will be the longest, down data from the base station control device is transmitted to have a buffering time of zero, while to the other radio base stations, data is transmitted with a buffering time corresponding to the degree of relative shortness of a transmission delay time applied, and the buffering time is modified by monitoring a change of a difference in delay time of up data from the radio base station.
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