Mobile communication system with satellite communication hand of

Details Mobile communication system with satellite communication hand of Mobile communication system with satellite communication hand of

1994-10-12

1997-08-19

Urban, Edward F.

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455428, 455432, 455436, H04B 7185

Patent

active

056598785

ABSTRACT:
The mobile communication system comprising a public network, a private system connected to the public network and a satellite system connected to the public network. The private system includes a radio base station which has a communication zone, a first mobile telephone which is able to communicate with the radio base station in the communication zone and is able to communicate with the satellite system, and a private branch exchange connected to both the public network and the radio base station which performs communication processes between the public network and the private system. The radio base station and the first mobile telephone are able to process a private protocol and a public protocol. The satellite system includes a satellite station which relays radio waves on a satellite line, and a satellite ground station which is able to communicate with the satellite station and is connected to the public network. When the first mobile telephone roams to the satellite system, the private branch exchange transfers information of the first mobile telephone for roaming to the satellite ground station via the public network before changing communication lines.

REFERENCES:
patent: 5081703 (1992-01-01), Lee
patent: 5280521 (1994-01-01), Itoh
patent: 5303286 (1994-04-01), Wiedeman
patent: 5448623 (1995-09-01), Wiedeman et al.

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