Cellular mobile telephone system that can be used on board a vehicle
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United States of America Patent
Stats
-
Nov 2, 2004
Grant Date -
Sep 5, 2002
app pub date -
Jan 17, 2002
filing date -
Mar 1, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A cellular mobile telephone system which can be used on board a vehicle enables conventional mobile telephones to be used on board an aircraft, for example. It includes a first transceiver on board the vehicle and connected to an antenna on the outside of the aircraft to set up an external radio link with a terrestrial mobile telephone network via a satellite. It further includes a second transceiver having an antenna inside the aircraft and connected to a base station controller. The second station and the base station controller have functions similar to those of a base station system in a conventional mobile telephone network, for example a GSM network. The base station controller is connected to the first transceiver. To prevent long signaling link set-up times, the base station controller includes software for setting up a signaling link between the aircraft and the terrestrial mobile telephone network in advance, as soon as at least one mobile telephone is switched on.
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