ALEXANDRIA, Va., April 7 -- United States Patent no. 12,598,084, issued on April 7, was assigned to Huawei Technologies'Co.'Ltd.' (Shenzhen, China).
"External authentication method, communication apparatus, and communication system" was invented by Qianghua Zhu (Beijing), Wenfu Wu (Shanghai) and Qi Yao (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "An external authentication method to implement authentication of a terminal with external subscription, where the method includes: A mobility management network element obtains external authentication indication information. The mobility management network element sends a first request message to a terminal based on the external authentication indication ...