Wireless communication system, wireless communication method, wireless communication device and wireless communication program

A wireless communication method implemented by a wireless communication system, the wireless communication system performing communication using a non-terrestrial network constructed by a non-regenerative relaying method and configured with a plurality of node stations, and the wireless communication method comprising:

• calculating band usage rates of communication links formed among the plurality of node stations;
• setting a plurality of communication routes to be candidates;
• calculating cost values of the plurality of communication routes to be the candidates, based on the band usage rates and delay times;
• comparing the cost values and selecting a communication route with the smallest cost value from among the plurality of communication routes to be the candidates;
• allocating bands to communication links included in the selected communication route;
• and
• performing wireless communication using the bands allocated to the communication links included in the selected communication route.

A wireless communication device comprised in a wireless communication system, the wireless communication system performing communication using a non-terrestrial network constructed by a non-regenerative relaying method and configured with a plurality of node stations, and the wireless communication device comprising a route control circuitry and a management circuitry, wherein

• the route control circuitry is configured to perform:
• calculating band usage rates of communication links formed among the plurality of node stations;
• setting a plurality of communication routes to be candidates;
• calculating cost values of the plurality of communication routes to be the candidates, based on the band usage rates and delay times;
• and
• comparing the cost values and selecting a communication route with the smallest cost value from among the plurality of communication routes to be the candidates, and
• the management circuitry is configured to perform for allocating bands to communication links included in the selected communication route.