Wireless communication system, wireless communication method and wireless station

A wireless communication method performed by a wireless communication system including a wireless station whose propagation path to a node station that relays wireless communication influenced by weather, the wireless communication method comprising:

• predicting a rainfall amount between the wireless station and the node station on a basis of a weather radar signal received by a weather radar antenna that is provided in the wireless station and receives the weather radar signal transmitted from the wireless station toward the node station and reflected;
• predicting quality of wireless communication between the wireless station and the node station on a basis of the predicted rainfall amount;
• and
• performing control to switch a line connecting the node station and the wireless station to another line connecting the node station and another communication station before interruption of the line in a case where the predicted quality of the wireless communication is less than a predetermined threshold.

A wireless station whose propagation path to a node station that relays wireless communication influenced by weather, the wireless station comprising:

• a weather radar antenna that receives a weather radar signal transmitted toward the node station and reflected;
• rainfall amount prediction circuitry configured to predict a rainfall amount between the wireless station and the node station on a basis of the weather radar signal received by the weather radar antenna;
• quality prediction circuitry configured to predict quality of wireless communication between the wireless station and the node station on a basis of the rainfall amount predicted by the rainfall amount prediction circuitry;
• and
• a modem that superimposes quality information indicating that the quality of the wireless communication predicted by the quality prediction circuitry is less than a predetermined threshold on a control signal transmitted from the wireless station to the node station in a case where the quality of the wireless communication is less than the predetermined threshold.