Patent ID: 11947030
Assignee: AIRBUS DEFENCE AND SPACE GMBH
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 12:
13. A method in a radar system for providing position information to a mobile unit, the method comprising:
receiving, by a receiving interface, radio frequency (RF) signals;
processing, by a processing unit, the received RF signals;
determining, by the processing unit, an occupation of a predetermined time-frequency space by the received RF signals;
transmitting, by a transmitting interface, information on an intention of the radar system to occupy a specific portion of the predetermined time-frequency space;
providing, by a plurality of beacon units, position information of the radar system on the specific portion in the predetermined time-frequency space, when it is determined that the specific portion of the predetermined time-frequency space is not occupied, and
transmitting, by the plurality of beacon units and on the specific portion in the predetermined time-frequency space, ranging signals based on which the mobile unit can compute its 3D position.