ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,720,550, issued on Aug. 25, was assigned to QUALCOMM Inc. (San Diego).

"Efficient transmission of control and data channels" was invented by Jing Lei (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus transmits a multiplexed combination of a control channel and a data channel that is mapped to at least one resource element in a time-frequency resource grid. Before transmission, the apparatus modulates a plurality of coded bits of the control channel using a first modulation scheme to obtain a plurality of control channel symbols, spread the plurality of control channel symbols using a first spreading code to obtain a spread plurality...