A method of transmission scheduling for one or more process devices (P1, P2, P3, P4) in an industrial application (IA), such as a sensor, an actuator and/or a process controller, capable of wireless communication, implemented by a radio control unit (LRC, GRC), is proposed, the method comprising: determining with respect to the industrial application (IA) whether a licensed shared access spectrum (LSA) is available and assigning to the one or more process devices (P1, P2, P3, P4), based on a traffic type of the data to be transmitted by the one or more process devices (P1, P2, P3, P4), an access spectrum within the licensed shared access spectrum (LSA).