ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,402,087, issued on Aug. 26, was assigned to ESPRESSIF SYSTEMS (SHANGHAI) Co. LTD. (Shanghai).

"Method and apparatus for sending acknowledgement frame, station, and storage medium" was invented by Yuanyuan Zhang (Shanghai), Shengdong Gu (Shanghai) and Junyi Zhang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method sending an acknowledgment frame, wherein by receiving a data frame sent by the first access point and calculating the minimum transmission power of the present station, the maximum transmission power of the station is used as the initial transmission power; the pre-established queue of the maximum transmission powers o...