SATELLITE COMMUNICATION SYSTEM, GATEWAY, SATELLITE REPEATER, COMMUNICATION NETWORK CONTROL STATION, SATELLITE COMMUNICATION METHOD, AND TERMINAL

摘要

This invention provides a satellite communication system wherein a communication between a terminal and a gateway that is placed on the earth is relayed by a satellite repeater. The satellite repeater can form, in the same area, a user link beam used for communication with the terminal and a feeder link beam used for communication with the gateway, change the association in frequency or polarization between the user link beam and the feeder link beam on the basis of a traffic condition, and hence change the beam communication capacity after the launching of the satellite.