ALEXANDRIA, Va., May 12 -- United States Patent no. 12,628,209, issued on May 12, was assigned to Apple Inc. (Cupertino, Calif.).

"Layer 2 relay protocols and mobility relay method" was invented by Richard Burbidge (Shrivenham, Great Britain), Sangeetha L. Bangolae (Houston), Youn Hyoung Heo (Seoul, South Korea), Kyeongin Jeong (Portland, Ore.), Jaemin Han (Hillsboro, Ore.) and Mo-han Fong (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is are provided methods and apparatus relating to layer 2 relaying and mobility using a sidelink interface, including a remote user equipment (UE) for use in a wireless communication network, the UE comprising: a device to network (D2N) entity, a devic...