US 12,452,669 B2
System and method for dynamic management of ultra-wideband ranging sessions
Srivathsa Masthi Parthasarathi, Bangalore (IN); Pablo Corbalán Pelegrín, Callosa de Segura (ES); Yuvaraj Pargunam, Dharmapuri (IN); and Michael Stark, Gleisdorf (AT)
Assigned to NXP B.V., Eindhoven (NL)
Filed by NXP B.V., Eindhoven (NL)
Filed on Jan. 10, 2024, as Appl. No. 18/408,998.
Claims priority of application No. 202341073655 (IN), filed on Oct. 30, 2023.
Prior Publication US 2025/0142332 A1, May 1, 2025
Int. Cl. H04W 12/08 (2021.01); H04W 72/56 (2023.01)
CPC H04W 12/08 (2013.01) [H04W 72/56 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An ultra-wideband (UWB) system, comprising:
a processing circuit configured to:
create a plurality of ranging sessions for a plurality of access control devices associated with the UWB system, wherein a plurality of UWB anchors, of the plurality of access control devices, are asynchronous, and wherein a plurality of priority values of the plurality of ranging sessions are equal;
schedule the plurality of ranging sessions based on the plurality of priority values;
receive, during each ranging session, a ranging message associated with a corresponding UWB anchor, wherein the ranging message comprises a ranging management list (RML) that includes a plurality of identifiers associated with a plurality of UWB systems that are within an access control range of the corresponding UWB anchor;
update a priority value of each ranging session based on one of a presence and an absence of an identifier associated with the UWB system in the RML of the ranging message received during the corresponding ranging session; and
schedule the plurality of ranging sessions based on the updated priority value to dynamically prioritize one of the plurality of access control devices, wherein based on the dynamic prioritization of one of the plurality of access control devices, an operation between the UWB system and the corresponding access control device is enabled.