ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,701,409, issued on Aug. 4, was assigned to QUALCOMM Inc. (San Diego).

"Secure communication of broadcast information related to cell access" was invented by Soo Bum Lee (San Diego), Ravi Agarwal (San Diego) and Gavin Bernard Horn (La Jolla, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Aspects of the disclosure relate to mechanisms for securely communicating broadcast information related to cell access within a secure cell. The broadcast information may be encrypted using a cell-specific broadcast key that may be derived from a broadcast root key that is refreshed periodically. A wireless communication device may obtain the broadcast root key via...