ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,680, issued on Nov. 18, was assigned to MEDIATEK SINGAPORE PTE. LTD. (Singapore).

"High spatial resolution MIMO precoding for uplink communication" was invented by Tzu-Han Chou (San Jose, Calif.) and Jiann-Ching Guey (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A user equipment (UE) with N transmit (Tx) antenna elements in a wireless network receives precoding information from a base station. The UE constructs a full-rank complex Hadamard matrix (CHM) of order N using the precoding information. The UE then precodes uplink signal using a precoding matrix composed of one or more columns of the full-rank CHM, and transmits the precod...