ALEXANDRIA, Va., July 16 -- United States Patent no. 12,671,611, issued on June 30, was assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Daejeon, South Korea).

"Method and apparatus for channel estimation in communication system" was invented by An Seok Lee (Daejeon, South Korea), Yong Jin Kwon (Daejeon, South Korea), Han Jun Park (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: "An operation method of a receiver may comprise: receiving reference signals from a transmitter in an entire use ban...