Control of telecommunication services for subscriber-provided ra

Details Control of telecommunication services for subscriber-provided ra Control of telecommunication services for subscriber-provided ra

1997-04-21

1999-11-30

Chin, Wellington

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

455431, 455430, 455432, 455436, 455550, 455345, H04Q 720, H04Q 728

Patent

active

059958332

ABSTRACT:
Telecommunication services are provided to subscriber-provided radiotelephones (50) residing inside an aircraft (20). Telecommunication services are provided while the aircraft (20) is flying and utilize the aircraft's air-to-ground communication system (48) to access a radiocommunication link (34). Base stations (40) residing in aircraft (20) are configured to transmit at least two independent overhead control data pilot signals (54, 58) in response to instructions from a single controller (44). The control data pilot signals (54, 58) capture and control the subscriber-provided radiotelephones (50). Controlling methods are employed to force autonomous registration of radiotelephones (50) and to instruct radiotelephones (50) to transmit at minimum power levels.

REFERENCES:
patent: 5123112 (1992-06-01), Choate
patent: 5438610 (1995-08-01), Bhagat et al.
patent: 5455964 (1995-10-01), Roos et al.
patent: 5519761 (1996-05-01), Gilhousen
patent: 5594782 (1997-01-01), Zicker et al.

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