Patent ID: 11908333
Assignee: HUNGAROCONTROL ZRT
Field: Control (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method for a positioning of an aircraft, wherein an airspace user initiates using of a service provided by an air navigation service provider and sends identifying data to the air navigation service provider, the air navigation service provider registers an aircraft identifier, carries out a positioning the method, comprising:
as the aircraft identifier, using an International Mobile Subscriber Identity (IMSI) number of a code card connected to a switched on on-board device and placed on board the aircraft, wherein the airspace user registers in to a cellular network contracted by the air navigation service provider,
recording time stamps emitted by at least three cellular base stations using an observed time difference of arrival (OTDOA) feature from a mobile operator,
calculating an observed time difference of arrival data proportionate to a distance from the at least three cellular base stations,
sending the observed time difference of the arrival data through the cellular network to a location based server, and via the location based server to an air traffic management system,
coupling and comparing in real time the observed time difference of the arrival data with observed time difference of arrival from at least two further positioning data,
identifying any outlier and/or corrupt positioning data, wherein the location based server and/or the air traffic management system determines a validated position of the aircraft,
creating validated position vector data,
sending the validated position vector data to the aircraft to inform the aircraft about a real time position of the aircraft, and forwarding the validated position vector data into at least one database accessible to multiple airspace users, wherein the at least two further positioning data is at least one of satellite positioning data, surveillance data and flight plan data.