FREQUENCY SHARING METHOD, RECEIVING STATION AND TRANSMITTING STATION

摘要

A frequency sharing method according to the present invention is a frequency sharing method in newly establishing, in a frequency sharing radio system in which a plurality of systems shares a specific frequency, a second system using the same frequency in a state in which there is a first system that is already using the specific frequency. When a first RX (2) of the first system receives a signal from a first TX (1) of the first system at a specific transmission frequency, the first RX (2) transmits a beacon signal indicating a reception range thereof at the transmission frequency and a second TX (3) of the second system detects a beacon signal transmitted by a receiving station of another system and judges whether signal transmission is possible based on a result of the detection.