User equipment localization using digital replica rf maps
AssigneeArizona Board of Regents on behalf of Arizona State University
InventorsAhmed Alkhateeb, Joao Morais
Life of this patent
Estimating the term…
Abstract
A system and method using a digital replica to populate large fingerprinting databases. A digital twin map is created ray-tracing simulations on a digital replica of the environment across several frequency bands and beamforming configurations. Online user equipment fingerprints are matched against this spatial database. A user equipment position measured in real-time and the digital twin map are used to compute the most probable location of the user equipment.
Claims20
A method for localizing user equipment (UE) in an area, the localizing being based on wireless measurements, the method comprising:
- creating a 3D map of the area;
- creating a digital replica based on an electromagnetic simulation of locations on the 3D map;
- generating fingerprinting maps for a simulated parameter for the digital replica;
- measuring a wireless communications-related parameter at a position of the UE;
- computing a likelihood of the position of the UE based on the measured wireless communications-related parameter and a subset of the digital replica simulated parameter;
- and
- choosing the position associated with the likelihood that is larger than other of the likelihoods.
A computer system for localizing user equipment (UE) in an area based on wireless measurements comprising:
- a hardware processor;
- a non-volatile storage medium storing instructions that when executed by the hardware processor perform operations comprising:
- creating a 3D map of the area;
- creating a digital replica based on an electromagnetic simulation of locations on the 3D map;
- generating fingerprinting maps for a simulated parameter for the digital replica;
- measuring a wireless communications-related parameter at a position of the UE;
- computing a likelihood of the position of the UE based on the measured wireless communications-related parameter and a subset of the digital replica simulated parameter;
- and
- choosing the position associated with the likelihood that is larger than other of the likelihoods.
A computer program product for localizing user equipment (UE) in an area based on wireless measurements, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a computing device to cause the computing device to perform operations comprising:
- creating a 3D map of the area;
- creating a digital replica based on an electromagnetic simulation of locations on the 3D map;
- generating fingerprinting maps for a simulated parameter for the digital replica;
- measuring a wireless communications-related parameter at a position of the UE;
- computing a likelihood of the position of the UE based on the measured wireless communications-related parameter and a subset of the digital replica simulated parameter;
- and
- choosing the position associated with the likelihood that is larger than other of the likelihoods.
Dependencies are inferred from the claim text.