Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1996-06-11
2000-10-03
Eisenzopf, Reinhard J.
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455442, H04Q 720
Patent
active
061284882
ABSTRACT:
A communication system comprising a set of non-geostationary satellites provides communication links between ground stations and terminals, a communication link from a particular station via a satellite terminating at associated terminals in a limited geographical area including the station and providing a communication channel to at least some of the associated terminals. The communication link is switched to another satellite during the process of communication link handover. A communication link between a particular station and its associated terminals includes an additional communication channel which enables advance data to be transmitted between the particular station and a terminal before the latter executes a communication link handover. This data masks any interruption of communication caused by the communication link handover.
REFERENCES:
patent: 5050234 (1991-09-01), Ohteru
patent: 5101501 (1992-03-01), Gilhousen et al.
patent: 5404568 (1995-04-01), Yamagishi
patent: 5408237 (1995-04-01), Patterson et al.
Casasoprana Didier
Rouffet Denis
Sauvageot Anne
ALCATEL N.V.
Bhattacharya Sam
Eisenzopf Reinhard J.
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