| 摘要 |
In a lower-level station (1), as a configuration to determine a channel utilization probability, which is a probability based on which the relevant lower-level station (1) determines whether a channel determination operation is stared or not, a correction unit (16B) is newly provided, which corrects the channel utilization probability based on not only information on a number of lower-level stations which have performed communication during a predetermined period and channel utilization state recording information which indicates the channel utilization state of the lower-level stations which have performed the communication, but also information on all the communication channels that can be utilized, that is, information on channel capacity that can be utilized in the entire system.
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