ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,526,632, issued on Jan. 13, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).

"Man-in-the-middle detection method and apparatus" was invented by Yan Xi (Shanghai) and Xiaochun Xiong (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A man-in-the-middle detection method and apparatus. The method includes: A base station receives, in a first physical frame, a RRC message from user equipment UE; the base station receives from the UE a second RRC message including frame information of a second physical frame, and security protection is performed on the first RRC message and the second RRC message by using an access stratum AS sec...