US 12,150,082 B2
Scalable and distributed inter-cluster coordination in UWB
Varun Amar Reddy, La Jolla, CA (US); Alexandros Manolakos, Escondido, CA (US); Pooria Pakrooh, San Diego, CA (US); and Krishna Kiran Mukkavilli, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jun. 14, 2022, as Appl. No. 17/806,809.
Prior Publication US 2023/0403671 A1, Dec. 14, 2023
Int. Cl. H04W 64/00 (2009.01); H04W 72/1268 (2023.01)
CPC H04W 64/00 (2013.01) [H04W 72/1268 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method for inter-cluster coordination in ultra-wideband (UWB) positioning, the method comprising:
obtaining metric information at a Global-Anchor for a network of UWB anchors comprising a plurality of clusters and a plurality of initiator anchors (Init-Anchors), wherein:
each cluster comprises a corresponding Init-Anchor,
the metric information comprises a centrality metric value of each Init-Anchor of the plurality of Init-Anchors, the centrality metric value of a respective Init-Anchor being indicative of a number of hops of the respective Init-Anchor to other UWB anchors in the network, and
the metric information is included in or derived from information communicated from the plurality of Init-Anchors to the Global-Anchor in a first control phase of the network of UWB anchors;
determining, with the Global-Anchor, a slot schedule for a second control phase of the network of UWB anchors, wherein:
determining the slot schedule is based on the centrality metric values of the plurality of Init-Anchors;
the slot schedule comprises an allocation of time slots of the second control phase among the plurality of Init-Anchors for wireless radio frequency (RF) communication; and
the allocation of time slots includes a first set of time slots for upstream communication followed by a second set of time slots for downstream communication; and
sending the slot schedule from the Global-Anchor to an Init-Anchor of the plurality of Init-Anchors.