ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,506,572, issued on Dec. 23, was assigned to Apple Inc. (Cupertino, Calif.).

"Methods for indicating the availability of the reference signal for idle/inactive user equipments" was invented by Sigen Ye (San Diego), Chunxuan Ye (San Diego), Dawei Zhang (Cupertino, Calif.), Haitong Sun (Cupertino, Calif.), Hong He (Cupertino, Calif.), Huaning Niu (Cupertino, Calif.), Sethuraman Gurumoorthy (Cupertino, Calif.), Seyed Ali Akbar Fakoorian (San Diego), Wei Zeng (Cupertino, Calif.) and Weidong Yang (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "An approach to providing an indication of the availability of tracking reference signal (TRS) and/or channe...