Satellite-based messaging system transmitting during guard band

Details Satellite-based messaging system transmitting during guard band Satellite-based messaging system transmitting during guard band

1994-10-03

1997-02-11

Eisenzopf, Reinhard J.

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

455 121, 455 132, H04B 7185, H04B 719, H04B 7195

Patent

active

056030797

ABSTRACT:
A satellite-based, world-wide cellular messaging system transmits paging messages to pagers. The messages are transmitted during a guard-band time-slot of a compatible world-wide cellular telephone system. In order to achieve better penetration, the satellites boost their transmit power for paging messages. One or more paging carrier frequencies may be used to accommodate differences in paging demand among different terrestrial cells.

REFERENCES:
patent: 4038600 (1977-07-01), Thomas
patent: 4178476 (1979-12-01), Frost
patent: 4481382 (1984-11-01), Villa-Real
patent: 5008952 (1991-04-01), Davis
patent: 5010317 (1991-04-01), Schwendeman et al.
patent: 5261118 (1993-11-01), Vanderspool II et al.
patent: 5301354 (1994-04-01), Schwendeman et al.
patent: 5317572 (1994-05-01), Satoh
patent: 5355529 (1994-10-01), Linquist et al.
patent: 5448621 (1995-09-01), Knudsen

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