Core network node selection in a mobile communication network

摘要

A method of selecting an interface node of a core network of a mobile communication network for handling data traffic between a mobile device and a destination network or a destination network node, as well a control node for performing such a method are provided. The control node processes signalling traffic for the mobile device and performs the selection. The mobile communication network comprises a plurality of core network interface nodes providing an interface to the core network. An interface node is selected from the plurality of core network interface nodes for handling the data traffic for the mobile device.

主权项

1. A method of selecting an interface node of a core network of a mobile communication network for handling data traffic between a mobile device and a destination network or a destination network node, the mobile communication network comprising a plurality of core network interface nodes providing an interface to the core network and at least one control node processing signalling traffic for the mobile device, the selection being performed by the control node, the method comprising:
retrieving transport efficiency information stored at the control node, the transport efficiency information indicating the efficiency of a transport of data traffic on connections between predetermined network nodes of the mobile communication network; based on the transport efficiency information, selecting at least one core network interface node from said plurality of core network interface nodes for handling the data traffic for the mobile device; dynamically collecting and maintaining, by the control node, the transport efficiency information according to a routing protocol employed by the control node; wherein selecting at least one core network interface node comprises selecting at least one core network interface node by a node selection function of the control node using a first type of network node identifier for identifying the interface nodes, and wherein retrieving the transport efficiency information comprises retrieving the transport efficiency information by a network information function using a second type of network node identifier for identifying the interface nodes, the method further comprising correlating the first and the second types of network node identifiers to enable the node selection function to use said transport efficiency information for selecting the interface node.