ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,418, issued on July 21, was assigned to Telefonaktiebolaget LM Ericsson (publ) (Stockholm).
"UE aided antenna calibration for NR-optimal port to antenna mapping" was invented by Shaohua Li (Kanata, Canada) and Jianguo Long (Ottawa).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments of the present disclosure provide methods, apparatuses, and computer products for a base station. A method includes retrieving a plurality of phase rotations associated with a codebook for precoding matrix indicator, PMI, feedback; transmitting, to a User Equipment, UE, a plurality of Channel State Information Reference Signals, CSI-RSs, on a plurality of beams tha...