Satellite communications system with dual mode bandwidth control

Details Satellite communications system with dual mode bandwidth control Satellite communications system with dual mode bandwidth control

1996-10-25

1999-06-22

Horabik, Michael

Multiplex communications

Communication over free space

Repeater

455 121, H04B 7185

Patent

active

059149426

ABSTRACT:
A satellite-cellular communication system includes a satellite based transceiver for transceiving two-way communications originated at a user terminal. As a part of call set up, a controller determines whether the user terminal should transmit in the uplink in either a wide band mode of operation or in a narrow band mode of operation. The controller then specifies to the user terminal the mode of operation through the transceiver.
Whether the user terminal transmits in the uplink in a wide band or in a narrow band mode depends upon factors including the type of device, channel usage and efficiency in the channels to and from the satellite transceiver and the signal quality of the signals received at the transceiver.

REFERENCES:
patent: 4870642 (1989-09-01), Nohara
patent: 5291516 (1994-03-01), Dixon
patent: 5526404 (1996-06-01), Wiedeman et al.
patent: 5625877 (1997-04-01), Dunn et al.
Baranowsky, P.W., "MSAT and Cellular Hybrid Networking", proceedings of the International Mobile Satellite Conference, Jan. 1, 1993.

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