A method for enabling communication for a wireless device in a communication network, the communication network comprising a radio network node, a network node, a configuration control node and a database, and which communication network comprises a core network with partitioned sets of functionalities where a first core network node supports a first set of functionalities out of a total set of functionalities in the core network of the communication network, and which first set of functionalities belongs to a first network slice of the core network and is separated from another set of functionalities out of the total set of functionalities in the core network; the method comprising: - receiving at the radio network node a connection request from the wireless device comprising an indication, which indication indicates connection to the first network slice; - determining by the radio network node that there is no established connection interface to the first core network node before retrieving slice configuration information, wherein the determining includes the radio network node checking what network slices are presently supported and configured; - transmitting a configuration request from the radio network node to the network node, requesting to establish a connection interface to the first network slice; - transmitting a request from the network node to the configuration control node or within the network node, which request requests a configuration of a transport network between the radio network node associated with the wireless device and the first core network node; - transmitting from the configuration control node or the network node a slice configuration request to the database for retrieving the slice configuration information for the first network slice; - receiving by the configuration control node or the network node the slice configuration information from the database; - transmitting from the configuration control node or the network node a transport request requesting a control network node for configuring the transport network; - upon confirmation of setup transport network, transmitting the slice configuration information from the network node to the radio network node for establishing the connection interface to the first network slice; and - establishing at the radio network node the connection interface towards the first core network node using the slice configuration information. - receiving at the radio network node a connection request from the wireless device comprising an indication, which indication indicates connection to the first network slice; - determining by the radio network node that there is no established connection interface to the first core network node before retrieving slice configuration information, wherein the determining includes the radio network node checking what network slices are presently supported and configured; - transmitting a configuration request from the radio network node to the network node, requesting to establish a connection interface to the first network slice; - transmitting a request from the network node to the configuration control node or within the network node, which request requests a configuration of a transport network between the radio network node associated with the wireless device and the first core network node; - transmitting from the configuration control node or the network node a slice configuration request to the database for retrieving the slice configuration information for the first network slice; - receiving by the configuration control node or the network node the slice configuration information from the database; - transmitting from the configuration control node or the network node a transport request requesting a control network node for configuring the transport network; - upon confirmation of setup transport network, transmitting the slice configuration information from the network node to the radio network node for establishing the connection interface to the first network slice; and - establishing at the radio network node the connection interface towards the first core network node using the slice configuration information.