COMMUNICATION METHOD AND COMMUNICATION SYSTEM USING THIS METHOD

摘要

PROBLEM TO BE SOLVED: To provide a communication method that can realize communication using a fixed wireless access(FWA) while avoiding a given interference level from a radar to the FWA by suppressing the given interference level from the communication by the FWA to the radar so as to avoid hindrance of the business management employing the radar. SOLUTION: A circuit 4 that detects a radar wave by utilizing the principles that a reception level of a radar wave is very high in comparison with a reception level of other wireless station adopting the FWA and a radar wave takes a pulsive radio wave form is provided and other threshold value is used to identify a radar wave with respect to the conventional discrimination as to whether or not the transmission is available according to one threshold value for the communication in its own system by the CSMA/CA system. Furthermore, by taking notice of a fact that the radar uses a parabolic antenna with a strong directivity to acquire a target through an optional rotation, predicting a time when the radio wave from the FWA reaches an interference quantity in excess of the threshold value and a time when the FWA communication is not available through the interference from the radar can stop the FWA transmission.