| 摘要 |
The base station comprises a number of reach times judging section which judges whether or not the number of times that the average radio resource usage volume for a prescribed time period has reached a change threshold value during a prescribed time period lies outside a reference number of times range; an allocation threshold value increasing and decreasing section which increases the allocation threshold value with respect to the radio resource usage volume at the time of a communications request from a mobile station, if the number of reach times is less than the minimum number of times of the reference number of times range, and reduces the allocation threshold value, if the number of reach times is greater than the maximum number of times of the reference number of times range; a usage volume at time of request judging section for judging whether or not the radio resource usage volume at the time of a communications request is less than an allocation threshold value; and a radio resource allocating section for allocating a new radio resource in order to establish a radio link with a mobile station, if the radio resource usage volume at the time of the communications request is less than the allocation threshold value.
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