A node-control unit for a network node and for setting an operation mode of one or more network nodes of a wireless communication network, the node-control unit comprising: - a network-service-detection unit, which is configured to ascertain a current availability of one or more network-service devices, which are currently external to the wireless communication network, for communication with at least one of the network nodes of the wireless communication network and for thus becoming part of the wireless communication network, and to provide a respective service-availability signal indicative thereof; - an operation-mode setting unit configured to control switching of an operation mode of at least one of the network nodes of the wireless communication network between: - a first operation mode of the at least one network node as a network node of the wireless communication network in a first network configuration, which excludes the respective network-service device from the wireless communication network; and - a second operation mode of the at least one network node as a network node of the wireless communication network in a second network configuration, which includes respective network-service device in the wireless communication network; wherein the one or more network-service devices is configured to perform in communication with the one or more network nodes, operating in the second operation mode, a commissioning function of at least one network node of the wireless communication network; wherein - the operation-mode setting unit is further configured, in response to receiving the respective service-availability signal, to generate and to provide, via an output interface, a corresponding first switch-mode signal to at least one of the one or more network nodes of the wireless communication network, the first switch-mode signal being indicative of an instruction to switch the operation mode of the at least one network node from the first operation mode to the second operation mode with respect to the given network-service device. - a network-service-detection unit, which is configured to ascertain a current availability of one or more network-service devices, which are currently external to the wireless communication network, for communication with at least one of the network nodes of the wireless communication network and for thus becoming part of the wireless communication network, and to provide a respective service-availability signal indicative thereof; - an operation-mode setting unit configured to control switching of an operation mode of at least one of the network nodes of the wireless communication network between: - a first operation mode of the at least one network node as a network node of the wireless communication network in a first network configuration, which excludes the respective network-service device from the wireless communication network; and - a second operation mode of the at least one network node as a network node of the wireless communication network in a second network configuration, which includes respective network-service device in the wireless communication network; wherein the one or more network-service devices is configured to perform in communication with the one or more network nodes, operating in the second operation mode, a commissioning function of at least one network node of the wireless communication network; - the operation-mode setting unit is further configured, in response to receiving the respective service-availability signal, to generate and to provide, via an output interface, a corresponding first switch-mode signal to at least one of the one or more network nodes of the wireless communication network, the first switch-mode signal being indicative of an instruction to switch the operation mode of the at least one network node from the first operation mode to the second operation mode with respect to the given network-service device.