1. A method comprising: providing wireless service to a mobile leaf node using at least one first infrastructure node in an industrial control or monitoring system; detecting movement of the mobile leaf node away from the at least one first infrastructure node; and handing off the mobile leaf node to at least one second infrastructure node in the industrial control or monitoring system so that the at least one second infrastructure node provides the wireless service to the mobile leaf node, wherein the wireless service provided to the mobile leaf node remains deterministic.