Satellite mobile communication system for rural service areas

Details Satellite mobile communication system for rural service areas Satellite mobile communication system for rural service areas

1990-06-27

1992-01-14

Eisenzopf, Reinhard J.

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

455 15, 455 20, 455 23, 455 51, H04B 7185, H04B 719

Patent

active

050817035

ABSTRACT:
A mobile communications system uses a communications satellite and a Mobile Telephone Switching Office (MTSO) and communicates with mobile units via the satellite. A cell site has a co-located cell site converter which converts satellite signals to signals for the MTSO and vice-versa. Remote converter sites communicate with the satellite and with the mobile units in given geographical areas. A single satellite link is sufficient for adequate RSA service. Frequency and phase differences among signals from the remote sites to the satellite are synchronized to avoid frequency- and phase-drift.

REFERENCES:
patent: 4273962 (1981-06-01), Wolfe
patent: 4506383 (1985-03-01), McGann
patent: 4672655 (1987-06-01), Koch
patent: 4700374 (1987-10-01), Bini
patent: 4704733 (1987-11-01), Kawano
patent: 4764979 (1988-08-01), Noguchi et al.
patent: 4849963 (1989-07-01), Kawano et al.

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