ALEXANDRIA, Va., June 2 -- United States Patent no. 12,647,922, issued on June 2, was assigned to NEC Corp. (Tokyo).

"Method of core network apparatus, method of radio access network, core network apparatus and radio access network" was invented by Kundan Tiwari (Tokyo) and Toshiyuki Tamura (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are techniques for registering a user equipment (UE) to a new access and mobility management function (AMF). When a new access and mobility management function (AMF) determines that an old AMF is disjoint AMF i.e. they are not connected, then the new AMF fetches the UE context (5GMM and 5GSM context) from the old AMF via new generation radio access network (N...