ALEXANDRIA, Va., June 2 -- United States Patent no. 12,644,950, issued on June 2, was assigned to QUALCOMM Inc. (San Diego).

"Backscatter-based positioning" was invented by Mohammad Tarek Fahim (San Diego), Srinivas Yerramalli (San Diego), Xiaojie Wang (Hillsborough, N.J.) and Jing Sun (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving multiple measurement reports associated with a tag device. The multiple measurement including, for each transmission/reception point (TRP) of multiple TRPs, a measurement re...