公开(公告)号：US11041948B2

公开(公告)日：2021-06-22

申请号：US16377323

申请日：2019-04-08

Applicant: Apple Inc.

Inventor： Ayelet Shahar-Doron ,  Michael Kerner ,  Gilad Kirshenberg

IPC: H04L25/02 ,  G01S13/76 ,  H04W24/02 ,  H04W24/08 ,  H04W84/12

Abstract: This disclosure relates to techniques for performing ranging wireless communication in a secure manner. A first wireless device may receive a plurality of independent sequences from a second wireless device. The first wireless device may perform a combined channel estimate using the sequences. The first wireless device may estimate the distance (or angle/direction, among various possibilities) between the two devices based on the combined channel estimate.