US 12,248,051 B2
Method and device for performing UWB ranging
Taeyoung Ha, Gyeonggi-do (KR); Mingyu Lee, Gyeonggi-do (KR); and Sooyeon Jung, Gyeonggi-do (KR)
Assigned to Samsung Electronics Co., Ltd, (KR)
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Jun. 10, 2022, as Appl. No. 17/837,315.
Claims priority of application No. 10-2021-0076357 (KR), filed on Jun. 11, 2021.
Prior Publication US 2022/0397658 A1, Dec. 15, 2022
Int. Cl. G01S 13/02 (2006.01); H04W 4/12 (2009.01); H04W 64/00 (2009.01); H04W 72/0446 (2023.01); H04W 74/08 (2024.01); H04W 74/0816 (2024.01)
CPC G01S 13/0209 (2013.01) [H04W 4/12 (2013.01); H04W 64/00 (2013.01); H04W 72/0446 (2013.01); H04W 74/0816 (2013.01); H04W 74/0866 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method by a first ultra-wide band (UWB) device, the method comprising:
transmitting an initiation message (IM) for initiating UWB ranging in a first period of a first ranging round;
receiving an access message (AM) from a second UWB device in a second period of the first ranging round, the second period being a contention period used for a contention-based access;
transmitting a first reply message (RM) in a third period of the first ranging round, wherein the first RM includes information indicating a fourth period for the second RM; and
receiving a second RM corresponding to the first RM from the second UWB device in the fourth period of the first ranging round,
wherein the IM includes length information about a length of the contention period and slot status information about a status of a ranging slot included in the contention period.