A method for isochronous data transmission in industrial network. The industrial network includes first sub-network including first industrial devices and first base station, second sub-network including second industrial devices and first routing means, first wireless device configured to provide a communication between the first industrial devices and the first base station, a network controller coupled to the first base station and to the first routing means, and a reference clock. The method including providing first timing information to the first sub-network and second timing information to the second sub-network, configuring the first wireless device to transfer data from the first industrial devices to the network controller based on the first timing information, receiving the data from the first sub-network and transferring the received data from the network controller to the second industrial devices of the second sub-network via routing means using the second timing information.