US 12,369,119 B2
UWB ON/OFF operation method to minimize degradation of ranging performance and UWB anchor using the same
Jong Chul Lim, Anyang-si (KR)
Assigned to Hyundai Mobis Co., Ltd., Seoul (KR)
Filed by HYUNDAI MOBIS Co., Ltd., Seoul (KR)
Filed on Aug. 19, 2022, as Appl. No. 17/891,233.
Claims priority of application No. 10-2021-0117190 (KR), filed on Sep. 2, 2021.
Prior Publication US 2023/0063790 A1, Mar. 2, 2023
Int. Cl. H04W 52/00 (2009.01); H04B 1/7163 (2011.01); H04W 4/02 (2018.01); H04W 52/02 (2009.01)
CPC H04W 52/0225 (2013.01) [H04B 1/7163 (2013.01); H04W 4/023 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An ultra-wideband (UWB) anchor using a UWB ON/OFF operation method to minimize degradation of ranging performance, the UWB anchor comprising:
a power supply configured to supply power to the UWB anchor;
a transceiver configured to transmit/receive a UWB signal to and from a UWB tag for performing ranging; and
a controller configured to end a ranging session when a cumulative sum of consecutive ranging failures over a specific time period reaches a maximum number of failed ranging round attempts, and to control the power supply and the transceiver to re-enter a UWB signal-reception standby (or UWB ON) mode based on the maximum number of failed ranging round attempts and a ranging block,
wherein the specific time period includes a plurality of ranging rounds,
wherein when the number of ranging failures reaches the maximum number of failed ranging round attempts, the UWB anchor transmits corresponding information.