In-flight cellular communications system coverage of mobile communications equipment located in aircraft

摘要: A network node of a terrestrial cellular system provides telecommunications service to user equipment (UE) in an airborne aircraft. Navigation information transmitted from the aircraft is periodically acquired, including identity, position, altitude, and time determining position. link maintained between UE by transmitting beam steered, Doppler shift compensated downlink signals, performing steered reception uplink signals. Beam steering directed toward based on navigation information. compensation adapted compensate for such that experiences nominal carrier frequency when receiving transmissions antenna nodes. Handover first second coverage area includes using same cell identifier allocation as are used first.