Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater
Patent
1992-09-30
1997-04-29
Eisenzopf, Reinhard J.
Telecommunications
Carrier wave repeater or relay system
Portable or mobile repeater
455 332, 455 561, 379 60, H04B 7185
Patent
active
056258674
ABSTRACT:
In a method of handing off traffic in a low orbit satellite communication system serving terminals, a terminal being connected to a terrestrial communication network by means of a connection station, handing off of the satellite-terminal and satellite-connection station links is possible only within a particular area. The decision to hand off the traffic is based on deterioration of the quality of service and of the radio environment for a group of terminals of said area. The system for implementing this method includes transmit/receive terminals and terrestrial connection stations.
REFERENCES:
patent: 5119504 (1992-06-01), Durboraw, III
patent: 5161248 (1992-11-01), Bertiger et al.
Moritz, Steve "Handoff Design Consideration for the Iridium System"Modern Science of Technology of Telecommunication Nov. 1991.
Proceedings Of The IEEE, vol. 75, No. 1, Jan. 1987, New York, US, pp. 74-81; R. Binder et al: "Crosslink Architectures for a Multiple Satellite System".
Berthault Frederic
Mazzella Michel
Rouffet Denis
Tanguy Yannick
Alcatel Espace
Eisenzopf Reinhard J.
Le Thanh
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