Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1997-08-04
2000-10-24
Vo, Nguyen
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455504, 455450, 455552, 455272, H04Q 720, H04B 700
Patent
active
061380121
ABSTRACT:
A communication system is established for providing dual-coverage areas using communication satellites, one or more terrestrial stations and one or more dual-coverage subscriber units (DCSU). The communication system determines when and where to establish dual-coverage areas. Dual-coverage areas are provided using separate beams from two or more satellites. The satellites can be located in a variety of orbits around the earth. DCSUs receive signals and process data from at least two satellites at one time. DCSUs can also transmit signals to at least two satellites at one time. Data packets which are missing from one channel are replaced by data packets on another channel. Path delays are compensated for on the transmit side to minimize processing requirements on the receive side.
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Krutz Michael William
Redden James Powers
Tayloe Daniel Richard
Klekotka James E.
McGurk Harold C.
Motorola Inc.
Nguyen Duc
Vo Nguyen
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