| 摘要 |
In order to reduce power consumption more easily, with reference to a threshold value predetermined from past traffic variations per day, the optimum value of the number of radio carriers to be operated or a radio bandwidth to be operated is determined from traffic information indicating a present communication volume in a covered area, and communication is controlled such that a radio carrier or radio bandwidth to be operated is set to correspond to the number of radio carriers or radio bandwidth determined in the determination step, and that the operation of all other radio carriers or radio bandwidths is stopped. |
