US Patent Issued to Telefonaktiebolaget LM Ericsson on Sept. 9 for "User equipment two-dimensional state estimation" (Swedish Inventor)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,221, issued on Sept. 9, was assigned to Telefonaktiebolaget LM Ericsson (Publ) (Stockholm).

"User equipment two-dimensional state estimation" was invented by Torbjorn Wigren (Uppsala, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for kinematic state estimation of a UE in a wireless communication system. The method includes estimating of a kinematic state having two-dimensional position, two-dimensional velocity and a frequency bias of the UE. The estimation is based on and fully enabled by obtained measurements of Doppler shifts, relative two different antennas of the wireless communication system, of radio signals transmitted from...