TERMINAL DEVICE FOR AIR-TO-GROUND COMMUNICATION, COMMUNICATION CONTROL METHOD THEREFOR, AND AIR-TO-GROUND COMMUNICATION SYSTEM

摘要

The present invention is used with a base station device for ground-to-ground communication which is also capable of performing air-to-ground communication with a terminal device for air-to-ground communication in an aircraft, and enables the base station device to be used, in the case of an emergency event (e.g. a national disaster), so as to prevent air-to-ground communication from restricting a communication resource for ground-to-ground communication to a level which is not sufficient for necessary communication. According to the present invention, an aircraft terminal device 2 for air-to-ground communication includes an in-flight communication controller 33 configured to control communication with multiple user terminals 4A and 4B, and, when a counterpart based station device on the ground needs to reserve a communication resource for ground-to-ground communication, the in-flight communication controller 33 cuts off communication with at least one of the multiple user terminals 4A and 4B.