Abstract: A method for controlling an underlying physical network by a software defined network includes providing a physical network that comprises routers for routing data traffic on a data communication plane, providing a software defined network that comprises at least one controller and at least one feature on a control plane for controlling the data forwarding elements of the physical network, communicating, by the data forwarding elements of the data communication plane, with the controller of the control plane on a dedicated control channel, communicating, by the controller, with the at least one feature on a dedicated feature channel in the control plane, and exchanging, via the data communication plane, at least a portion of the data traffic in the control plane.

Abstract: A method for handover of a user equipment in cell based networks includes: Detecting a deterioration of a predetermined connection quality for an application on the network connection path between the user equipment and the core network device via the connected base station; Providing backhaul connection information about at least one alternative base station providing at least the predetermined connection quality on its backhaul connection for the application; Blacklisting the connected base station on the user equipment; Providing a removing condition when to remove the connected base station from the blacklist; Requesting a handover of the user equipment from the connected base station to the alternative base station; Handover of the user equipment to the alternative base station if the handover request is accepted; and Handing back the user equipment to the previously connected base station if the removing condition is fulfilled.

Abstract: A method for controlling an underlying physical network by a software defined network includes providing a physical network that comprises routers for routing data traffic on a data communication plane, providing a software defined network that comprises at least one controller and at least one feature on a control plane for controlling the data forwarding elements of the physical network, communicating, by the data forwarding elements of the data communication plane, with the controller of the control plane on a dedicated control channel, communicating, by the controller, with the at least one feature on a dedicated feature channel in the control plane, and exchanging, via the data communication plane, at least a portion of the data traffic in the control plane.

Abstract: A method for data communication in a hierarchically structured network including at least two lower level entities on a lower level, at least one higher level entity on a higher level, wherein each higher level entity provides lowlink connections to each of the lower level entities and highlink connections to at least one further high level entity wherein a lower level entity the higher level entity connected to the low level entity and the high level entity connected to the higher level entity defines a connection branch, includes: determining communication capabilities of the lowlink and highlink connections in each branch; providing communication capability information according to the determined communication capabilities to the lower level entities; determining the connections in each branch having the lower one of the data communication capability; and adapting the data communication capabilities of the connections in each branch according to the determined lower data communication capability.

Abstract: A method for link quality estimation in a wireless network, is characterized in that nodes of the wireless network perform the steps of sending packets to other nodes, monitoring all packets received from other nodes being located within their communication range, and calculating sent-received ratios with respect to other nodes and deriving thereof a link quality towards the respective nodes.

Abstract: A method for handover of a user equipment in cell based networks includes: Detecting a deterioration of a predetermined connection quality for an application on the network connection path between the user equipment and the core network device via the connected base station; Providing backhaul connection information about at least one alternative base station providing at least the predetermined connection quality on its backhaul connection for the application; Blacklisting the connected base station on the user equipment; Providing a removing condition when to remove the connected base station from the blacklist; Requesting a handover of the user equipment from the connected base station to the alternative base station; Handover of the user equipment to the alternative base station if the handover request is accepted; and Handing back the user equipment to the previously connected base station if the removing condition is fulfilled.

Abstract: A method for controlling devices and/or appliances being installed and/or implemented in a user network, includes the steps of providing a management application, and associating one or more UEs with the management application, providing location information of the associated UEs to the management application, and, based on the location information and configured policy rules, performing control actions on the devices and/or appliances. Furthermore, a corresponding system is described.

Abstract: A method for link quality estimation in a wireless network, is characterized in that nodes of the wireless network perform the steps of sending packets to other nodes, monitoring all packets received from other nodes being located within their communication range, and calculating sent-received ratios with respect to other nodes and deriving thereof a link quality towards the respective nodes.