Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-01-25
2010-06-08
Nguyen, Tony T (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S430000, C455S428000, C455S041200
Reexamination Certificate
active
07734288
ABSTRACT:
An airborne cell phone system comprises a cabin-based system for communicating with a ground station over a satellite link. A base station transceiver is in the ground station and an air interface (Um) is extended to a cabin-based mobile as if the cabin-based mobile is ground-based. The cabin-based system includes the cabin-based mobile for communicating over the Um interface. A custom device emulates the Um interface and communicates with the cabin-based mobile. A cabin transceiver connected to the custom device communicates with the custom device and the satellite link. The ground station further comprises a ground transceiver for communicating with the satellite link. A handset emulator connected the ground transceiver emulates a handset and communicates with the ground transceiver. A ground Um interface communicates with the handset emulator and the base station transceiver communicates with the ground Um interface.
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Barbieri Daniel M.
Evans Matthew J.
Nguyen Tony T
Rockwell Collins, Inc.
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