ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,874, issued on May 26, was assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (Stockholm).
"Transmission of reference signals from a terminal device" was invented by Sven Petersson (Savedalen, Sweden), Fredrik Athley (Kullavik, Sweden), Andreas Nilsson (Gothenburg, Sweden), Roy Timo (Jarfalla, Sweden) and Xinlin Zhang (Gothenburg, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device comprises at least two physical antenna ports. The method comprises obtaining channel information. The method comprises determining, for at...