ALEXANDRIA, Va., July 15 -- United States Patent no. 12,666,313, issued on June 23, was assigned to SAMSUNG ELECTRONICS Co. Ltd. (Suwon-si, South Korea).
"Method and device for recovering call service in a mobile communication system" was invented by Weibo Li (Guangdong, China) and Min Li (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and a device for recovering a call service in a mobile communication system are provided. The method includes the following steps determining whether a second cell satisfies a condition for a terminal to perform an IP multimedia subsystem (IMS) registration when detecting that the terminal enters the second cell during a period in which the terminal w...