ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,890, issued on Nov. 25, was assigned to Huawei Technologies Co. Ltd. (Shenzhen, China).

"Signaling protection method, apparatus, and system" was invented by Fei Li (Shenzhen, China) and Chengdong He (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A signaling protection method, apparatus, and system prevents an NF from spoofing an NF of another PLMN under a shared SEPP to access a peer PLMN service, so that system security is improved. A first SEPP serving a first PLMN receives a third service request that is from an NF of the first PLMN and that is sent to an NF of a second PLMN. A second SEPP serves the second PLMN, and a connection...