ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,911, issued on Oct. 14, was assigned to QUALCOMM Inc. (San Diego).
"Double-differential round trip time measurement" was invented by Weimin Duan (San Diego), Alexandros Manolakos (Escondido, Calif.) and Ning Luo (Cupertino, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In an aspect, a position estimation entity may obtain a first differential round trip time (RTT) measurement based on a first RTT measurement between a user equipment (UE) and a first wireless node and a second RTT measurement between the UE and a second wireless node, may obtain a second differential RTT measurement based on a third RTT measurement between a third wireless no...