| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication technique that performs efficient radio communication while securing the reliability of communication.SOLUTION: A control station generates a control signal including a control signal, a data signal, its reception response, and a reservation signal to reserve a time when a response signal to the reception response of the control signal is transmitted and received. The control station receives a signal from a receiving station at a time other than a reserved time included in a control signal received from a second radio communication system close to a first radio communication system. If a data transmitting station received a control signal, it generates a reception response including a residual time reservation signal to make a reservation for the residual time of a reserved time included in the control signal. The data transmitting device transmits the generated reception response by the same modulation scheme, coding scheme, and antenna directivity as those of a data signal scheduled for transmission. The control station generates a response signal and transmits the response signal from the receiving station if it normally received the reception response for the control signal. The data transmitting station transmits the data signal if it normally received the response signal. |
