ALEXANDRIA, Va., June 16 -- United States Patent no. 12,309,646, issued on May 20, was assigned to Tencent Technology Co. Ltd. (Shenzhen, China).

"Handover process-based message transmitting method and apparatus, device, and medium" was invented by Chunshan Xiong (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Handover process-based message transmitting methods and apparatuses for mobile communication are provided. A control parameter of quality of service (QOS) notification control (QNC) of a non-GBR bearer flow is transmitted by a source access network device to a target access network device during a handover process, so that the target access network device transmits a notification messag...