Radio communication system using frequency division multiplexing

Details Radio communication system using frequency division multiplexing Radio communication system using frequency division multiplexing

1982-07-02

1985-07-09

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 691, 455 34, 34082573, 179 2EB, H04L 514, H04J 100, H04B 700

Patent

active

045286566

ABSTRACT:
A point-to-multipoint radio communication system includes a master station and a plurality of remote stations which communicate with the master station using frequency division multiplexing. Each remote station transmits on a separate frequency, but the respective frequencies of transmission by the remote stations are closely spaced so as to be contained within the band which is centered on a single licensed frequency. Thus, the system may operate with only a first licensed frequency for communication from the master station to the remote stations and a second licensed frequency for communications from the remote stations to the master station.

REFERENCES:
patent: 3368201 (1968-02-01), Skrobisch
patent: 3495177 (1970-02-01), Brooks
patent: 3581208 (1971-05-01), Buehrle, Jr.
patent: 3670242 (1972-06-01), McGarrey
patent: 4117267 (1978-09-01), Haberle et al.
patent: 4129349 (1978-12-01), Goldman

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