US Patent 7187927 Global cell phone system and method for aircraft

A global airborne cell phone system is used for cell phone calls by using a pico cell. A switch connected to the pico cell switches the cell phone call between a first radio that transmits to a first satellite system and a second radio that transmits to a second satellite system. A navigation system provides aircraft position data. A processor switches the call to the first radio and to the second radio according to coverage of the first satellite and the second satellite for a current aircraft position. A cell phone of a second type makes calls to a pico cell of the second type. A second switch connected to the pico cell of the second type switches the cell phone call between the first radio and the second radio according to coverage of the first satellite and the second satellite for the current aircraft position.