Satellite-based cellular messaging system and method of operatio

Details Satellite-based cellular messaging system and method of operatio Satellite-based cellular messaging system and method of operatio

1994-10-03

1997-03-18

Eisenzopf, Reinhard J.

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

455 131, 455 134, 455 331, 455 383, 455343, 34082544, H04B 7185

Patent

active

056131941

ABSTRACT:
A satellite-based, world-wide cellular messaging system transmits paging messages to pagers. The messages are transmitted at unique times, on unique frequencies, and into uniquely identified cells according to a plan which is periodically revised and transmitted in advance to the pagers. Battery resources in the satellites and pagers are thereby conserved, and interference between transmissions to adjacent cells is minimized.

REFERENCES:
patent: 4178476 (1979-12-01), Frost
patent: 5008952 (1991-04-01), Davis
patent: 5121503 (1992-06-01), Davis
patent: 5241542 (1993-08-01), Natarajan et al.

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