US 12,313,720 B2
Multi-carrier phase difference distance estimation
Alireza Sheikh, Eindhoven (NL); and Jac Romme, Schiedam (NL)
Assigned to Stichting IMEC Nederland, Eindhoven (NL)
Filed by Stichting IMEC Nederland, Eindhoven (NL)
Filed on Dec. 20, 2022, as Appl. No. 18/068,806.
Claims priority of application No. 21217250 (EP), filed on Dec. 23, 2021.
Prior Publication US 2023/0204745 A1, Jun. 29, 2023
Int. Cl. H04W 24/08 (2009.01); G01S 11/02 (2010.01)
CPC G01S 11/02 (2013.01) [H04W 24/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for performing multi-carrier phase-based ranging between a first radio and a second radio, the method comprising:
calculating first squared channel responses based on channel measurements between the first radio and the second radio, the first squared channel responses corresponding to available carriers within a measurement band that has a band gap having one or more unusable carriers, the one or more unusable carriers being unusable for calculating the first squared channel responses;
estimating, via a trained neural network, second squared channel responses for the one or more unusable carriers based on the first squared channel responses of the available carriers adjacent to the band gap; and
estimating a distance between the first radio and the second radio based on the first squared channel responses and the second squared channel responses.