Systems and methods related to Time-Sensitive Networking (TSN)-cellular communication system Quality of Service (QoS) mapping are disclosed. In some embodiments, a method performed for operating a cellular communications system as a virtual TSN node in a TSN system comprises, at a TSN application function, receiving one or more TSN QoS parameters for the virtual TSN node from a controller associated with the TSN system and providing the one or more TSN QoS parameters to a core network function in a core network of the cellular communications system. The method further comprises, at the core network function, receiving the one or more TSN QoS parameters, mapping them to one or more QoS policies and/or one or more rules in the cellular communications system, and applying the one or more QoS policies and/or the one or more rules in the cellular communications system.