ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,602, issued on Jan. 20, was assigned to BEIJING XIAOMI MOBILE SOFTWARE Co. LTD. (Beijing).
"Method and apparatus for precoding reconfigurable intelligent surface(RIS)" was invented by Liangang Chi (Beijing) and Li Yang (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for precoding a reconfigurable intelligent surface (RIS) are disclosed, the method is performed by a terminal device, including: determining a precoding matrix indicator (PMI) and an additional deflection phase angle for each RIS unit group in an RIS array according to channel information of the each RIS unit group; and sending first indication information,...