Pulse or digital communications – Repeaters – Testing
Patent
1994-08-29
1995-10-17
Swann, Tod R.
Pulse or digital communications
Repeaters
Testing
380 34, 455 331, 379 59, H04J 1306
Patent
active
054597595
ABSTRACT:
A frequency-hopping-communications system, assigned a system bandwidth B, with the system bandwidth B divided into N sets of frequencies, with each set of the N sets of frequencies not having the same frequencies as other sets of the N sets of frequencies, for communicating base-message data to a plurality of remote units. The frequency-hopping-communications system includes a plurality of base stations for communicating base-message data to the plurality of remote units. Each of the base stations has a coverage area divided into a plurality of N concentric regions which are divided into a plurality of N sectors, with each sector of each concentric region assigned one of the N sets of frequencies. For communicating with a selected-remote unit located within a particular sector of a particular-concentric region, each base station has a modulator for converting the base-message data to a form suitable for sending over radio waves, a frequency-hopping device for frequency hopping the converted-base-message data over a set of frequencies assigned to the particular sector of the particular-concentric region, thereby generating a frequency-hopped signal, a controller, responsive to the selected-remote unit being located in the particular sector of the particular-concentric region, for controlling the set of frequencies used by the frequency-hopping device, a power amplifier for amplifying the frequency-hopped signal from the base station to the remote unit, and a base antenna coupled to the power amplifier for radiating the frequency-hopped signal. Each of the remote units has a receiver for recovering from the frequency-hopped signal the base-message data.
REFERENCES:
patent: 4479226 (1984-10-01), Prabbu et al.
patent: 4850036 (1989-07-01), Smith
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 5056109 (1991-10-01), Gilhousen et al.
patent: 5101501 (1992-03-01), Gilhousen et al.
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5301188 (1994-04-01), Kotzin et al.
InterDigital Technology Corporation
Swann Tod R.
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