公开(公告)号：US12092717B2

公开(公告)日：2024-09-17

申请号：US17527980

申请日：2021-11-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Erik David Lindskog

IPC: G01S11/02 ,  G07C9/00

CPC classification number: G01S11/02 ,  G07C9/00309 ,  G07C2009/00769

Abstract: A system and method for ranging secured by feedback of one or more channel metrics. The method may include: receiving, by a first modem, a first training signal, from a second modem; generating, by the first modem, a first estimate of a channel metric, based on the first training signal; receiving, by the first modem, from the second modem, a second estimate of the channel metric; determining, by the first modem, that the first estimate of the channel metric and the second estimate of the channel metric do not meet a similarity criterion; and denying, by the first modem, access to a resource.

公开(公告)号：US11743858B2

公开(公告)日：2023-08-29

申请号：US17458222

申请日：2021-08-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Erik David Lindskog

IPC: H04W64/00 ,  H04W56/00 ,  H04B17/27 ,  H04L43/106

CPC classification number: H04W64/006 ,  H04B17/27 ,  H04L43/106 ,  H04W56/009 ,  H04W64/003

Abstract: A method of performing ranging, by a first device, with respect to a second device is provided. According to an embodiment, the method includes: receiving, by the first device, a plurality of timestamps including a first timestamp and a second timestamp, and determining, by the first device, a range R with respect to the second device by calculating an average time-of-flight (TOF) of the first wireless signal and the second wireless signal based on the first timestamp and the second timestamp. The first timestamp indicates a time-of-arrival (TOA) of a first wireless signal arriving at the second device, a maximum possible value of the first timestamp being Tmax1. The second timestamp indicates a time-of-departure (TOD) of a second wireless signal departing from the second device, and a maximum possible value of the second timestamp being Tmax2 and greater than Tmax1.