ALEXANDRIA, Va., June 18 -- United States Patent no. 12,328,777, issued on June 10, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).

"Data transmission method and apparatus" was invented by Haoren Zhu (Shanghai), Huan Li (Shenzhen, China) and Weisheng Jin (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A data transmission method and apparatus. The method includes: a core network element receives a first message sent by a first terminal device. The first message is used to request to establish a first PDU session. The core network element determines, based on group information corresponding to the first terminal device, that the first terminal device needs to perform local routing. The...