ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,775, issued on April 15, was assigned to ZTE Corp. (Shenzhen, China).

"MBSFN subframe processing method and apparatus, base station and user equipment" was invented by Fubo Shi (Shenzhen, China) and Xiaohui Hou (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a Multicast Broadcast Single Frequency Network (MBSFN) subframe processing method and apparatus, a base station and user equipment. In the solution, a base station places an MBSFN Reference Signal (RS) in a 0-filling region of an MBSFN subframe for transmission, thus making full use of time frequency resources, and facilitating User Equipment (UE) in performing channe...