ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,238,148, issued on Feb. 25, was assigned to SAMSUNG ELECTRONICS Co. LTD. (Suwon-si, South Korea).

"Terminal, wireless communication system including terminal, and method of operating terminal" was invented by Jae Sik Oh (Suwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a method of operating a terminal. The method includes connecting a first radio access technology (RAT)-based network to a first base station, transmitting a first message based on a session initiation protocol to the first base station, starting an evolved packet system fallback (ETSFB) timer in response to the first message to the first...