Abstract: The terrestrial communication network is making progress from the analog public network based mostly on telephone traffic to the N-ISDN. The development to BISDN also is considered, aiming at an integrated network which can provide large-scale file transfer, high-speed data communication such as the communication between high-speed LAN, and dynamic image communication such as TV and HDTV. This paper proposes the application of the multibeam
Satellite communication to such B-ISDN, and presents such technical subjects as the satellite communication. First, the purpose of application of the satellite communication to B-ISDN is described. The requirement in the application to B-ISDN is presented. Then, aiming at the fulfillment of the requirement, the technical subjects and evolution are shown for the configuration of the communication system, the channel control system, the synchronization control system, OAM system, and the interface to the terrestrial network.