Technique for position calculation of a receiver via use of encrypted signals of a public regulated service
AssigneeAirbus DS GmbH
InventorsJan Wendel, Alexander Ruegamer
Life of this patent
Estimating the term…
Abstract
A method for determining a position of a receiver via use of encrypted signals of a public regulated service. The method comprises transmitting PRN code chips to the receiver by an assistance server. The method further comprises storing the transmitted PRN code chips to be used before a designated time interval by the receiver. The method further comprises receiving the encrypted signals during the designated time interval by the receiver from satellites in line-of-sight to the receiver. The method further comprises determining the position of the receiver via use of the encrypted signals and the stored PRN code chips by the receiver.
Claims12
A method for determining a position of a receiver via use of encrypted signals of a public regulated service, the method comprising:
- transmitting, by an assistance server, Pseudo Random Noise, PRN, code chips to the receiver;
- storing, by the receiver, the transmitted PRN code chips to be used for a designated time interval;
- receiving the encrypted signals, by the receiver, from satellites in line-of-sight to the receiver, during the designated time interval;
- and
- determining the position of the receiver, by the receiver, via use of the encrypted signals and the stored PRN code chips.
A receiver for determining a position of the receiver via use of encrypted signals of a public regulated service, the receiver comprising:
- a first receiving unit adapted to receive Pseudo Random Noise, PRN, code chips from an assistance server;
- a storing unit adapted to store the transmitted PRN code chips to be used for a designated time interval;
- a second receiving unit adapted to receive the encrypted signals from satellites in line-of-sight to the receiver during the designated time interval;
- and
- a position determining unit adapted to determine the position of the receiver via use of the encrypted signals and the stored PRN code chips.
An assistance server for supporting determination of a position of a receiver via use of encrypted signals of a public regulated service, the assistance server comprising:
- a transmitting unit adapted to transmit Pseudo Random Noise, PRN, code chips to the receiver enabling the receiver to store the transmitted PRN code chips to be used for a designated time interval, to receive the encrypted signals from satellites in line-of-sight to the receiver during the designated time interval, and to determine the position of the receiver via use of the encrypted signals and the stored PRN code chips.
Dependencies are inferred from the claim text.