ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,219,385, issued on Feb. 4, was assigned to China Academy of Information and Communications (Beijing).

"Hybrid automatic repeat request feedback method and device" was invented by Zhiyu Yan (Beijing), Zhiqin Wang (Beijing), Ying Du (Beijing), Xiaofeng Liu (Beijing), Guiming Wei (Beijing), Fei Xu (Beijing), Xia Shen (Beijing) and Huiying Jiao (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed in the present application is a hybrid automatic repeat request feedback method, which comprises the steps that: an HARQ-ACK codebook includes HARQ-ACK information of M PDSCHs, the M PDSCHs are all scheduled by first-type PDCCHs, and the first-type PDCC...