ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,004, issued on Feb. 17, was assigned to QUALCOMM Inc. (San Diego).
"Backscatter-based positioning" was invented by Xiaojie Wang (Hillsborough, N.J.), Jing Sun (San Diego), Mohammad Tarek Fahim (San Diego) and Srinivas Yerramalli (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 transmitting a tag configuration message that indicates a first tag configuration and a second tag configuration. The method also includes transmitting a positioning reference signa...