WIRELESS GROUND LINK-BASED AIRCRAFT DATA COMMUNICATION SYSTEM WITH ROAMING FEATURE
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Abstract
A flight information communication system has a plurality of RF direct sequence spread spectrum ground data links that link respective aircraft-resident subsystems, in each of which a copy of its flight performance data is stored, with airport-located subsystems. The airport-located subsystems are coupled by way communication paths, such as land line telephone links, to a remote flight operations control center. At the flight operations control center, flight performance data downlinked from plural aircraft parked at different airports is analyzed. In addition, the flight control center may be employed to direct the uploading of in-flight data files, such as audio, video and navigation files from the airport-located subsystems to the aircraft.
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Citations
64 Claims
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1-58. -58. (canceled)
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59. A method of facilitating compliance with limitations imposed upon wireless communications by governing jurisdictions comprising:
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receiving at a mobile RF transceiver unit an interrogation beacon containing information representative of communication limitations imposed by a jurisdiction governing the geographic location of the mobile RF transceiver unit when it receives the beacon on at least one of a plurality of preselected radio-frequency (RF) channels; adjusting at the mobile RF transceiver unit transmission parameters applicable to the transmission of data from the mobile RF transceiver unit; and transmitting data from the mobile RF transceiver unit on a selected channel in accordance with communication limitation imposed by the jurisdiction governing the location of the mobile RF transceiver unit. - View Dependent Claims (60, 61, 62, 63, 64)
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Specification