公开(公告)号：US20240259949A1

公开(公告)日：2024-08-01

申请号：US18421961

申请日：2024-01-24

Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION

Inventor： Young Bae KO ,  Jin Su KIM

IPC: H04W52/02 ,  H04L5/00 ,  H04W48/04

CPC classification number: H04W52/0277 ,  H04L5/0048 ,  H04W48/04

Abstract: Disclosed herein non-infrastructure ultra-wideband wireless positioning method and system using latency communication and overhear. The method includes: receiving a ranging message transmitted from other active devices; measuring a location of an active device by using data obtained from the ranging message; checking a remaining amount of power of the active device and creating a ranging message by using the remaining amount of power of the active device and the obtained data; and transmitting the created ranging message to the other active devices. When a request of device change is received from a first passive device based on a remaining amount of power of a passive device overhearing the ranging message and the remaining amount of power of the active device, a response for changing the first passive device to an active device is provided, and the active device itself changes from an active device to a passive device.