ALEXANDRIA, Va., June 16 -- United States Patent no. 12,659,771, issued on June 16, was assigned to Telefonaktiebolaget LM Ericsson (publ) (Stockholm).

"Trajectory based performance monitoring in a wireless communication network" was invented by Laszlo Hevizi (Piliscsaba, Hungary) and Attila Bader (Paty, Hungary).

According to the abstract* released by the U.S. Patent & Trademark Office: "For each of a plurality of wireless devices, signal strength measurements performed by the wireless device are collected. The signal strength measurements are collected with respect to a plurality of cells of the wireless communication network. Further, based on the signal strength measurements, a plurality of zones of the wireless communication network ...