ALEXANDRIA, Va., July 23 -- United States Patent no. 12,368,621, issued on July 22, was assigned to Apple Inc. (Cupertino, Calif.).

"Technologies for reference signal indication" was invented by Sigen Ye (San Diego), Huaning Niu (San Jose, Calif.), Hongbo Yan (Vista, Calif.), Shengshan Cui (San Diego), Wei Zeng (Saratoga, Calif.), Oghenekome Oteri (San Diego), Weidong Yang (San Diego), Dawei Zhang (Saratoga, Calif.), Hong He (San Jose, Calif.) and Haitong Sun (Saratoga, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present application relates to devices and components including apparatus, systems, and methods for reference signal indication for idle or inactive user equipments."

The patent was f...