ALEXANDRIA, Va., June 10 -- United States Patent no. 12,294,475, issued on May 6, was assigned to Innovative Technology Lab Co. Ltd. (Seoul, South Korea).
"Method and apparatus for transmitting and receiving demodulation reference signal" was invented by Sung Jun Yoon (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods, apparatuses, and systems described herein generally relate to a reference signal generation and mapping. For example, a method comprises determining a first set of antenna ports for a demodulation reference signal (DM-RS) transmission; determining, based on the first set, a frequency index associated with four adjacent resource elements, wherein the four adjacent resour...