To realize a high-quality wireless communication line occupying time slots without consuming time slots to be wireless resources correspondingly to the number of hops.

In the case of transmitting data from a communication terminal 11 to a communication terminal 15, time slots of a time-division multiplexing system are reserved on a wireless link of a communication route from the communication terminal 11 up to the communication terminal 15 via communication terminals 12 to 14 by signaling followed by control information from the communication terminal 11. Time slots to be used for transmitting data from the communication terminal 11 to the communication terminal 12 are reused for a wireless link from the communication terminal 14 to the communication terminal 15 which is separated from the communication terminals 12 by a plurality of hops to secure a communication route to the communication terminal 15.

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