ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,395,217, issued on Aug. 19.
"Method for FR1 FDD channel state information" was invented by Sandeep Bhat (Bengaluru, India), Chin-Kuo Jao (Hsin-Chu, Taiwan) and Jiann-Ching Guey (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of downlink channel state information (DL CSI) measurement and reporting is proposed in FR1 frequency division duplex (FDD) systems. CSI reference signal (CSI-RS) is directed towards dominant spatial domain (SD, beam) and frequency domain (FD, delay) components in the propagation environment. By partial channel reciprocity, angles and delays in the DL channel can be obtained by UL channel measurement. UE on...