ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,549,475, issued on Feb. 10, was assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (Daejeon, South Korea).

"Apparatus and method for performing session management in mobile communication system" was invented by Jong Seok Lee (Daejeon, South Korea), Nam Seok Ko (Daejeon, South Korea), Sun Jin Kim (Sejong-si, South Korea) and Sun Me Kim (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A network function performs session management in a mobile communication system. The network function includes a memory configured to store at least one program, a transceiver unit configured to transmit and receive at least one signal, and...