ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,882, issued on May 26, was assigned to Electronics and Telecommunications Research Institute (Daejeon, South Korea).

"Method and apparatus for channel state information feedback in communication system" was invented by Han Jun Park (Daejeon, South Korea), Yong Jin Kwon (Daejeon, South Korea), An Seok Lee (Daejeon, South Korea), Heesoo Lee (Daejeon, South Korea), Yun Joo Kim (Daejeon, South Korea), Hyun Seo Park (Daejeon, South Korea), Jung Bo Son (Daejeon, South Korea) and Yu Ro Lee (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of a terminal may comprise: receiving a reference signal from a base station; generating a f...