Handling of overloads and handovers in a communications network

摘要

The present invention refers to handling of an overload in a communications network and to handling of handovers occurring after the handling of handovers in the communications net work, wherein said communications network is based upon a tree topology providing several levels of nodes in said communications network. According to the present invention, in formation about an overload is provided through several levels of nodes in communications network, starting from the node, with regard to which said overload has occurred, and ending with nodes being located in levels arranged upside the level, in which the overload occurred, and being connected directly or indirectly with the node, with regard to which said overload has occurred. When handling a handover from a cell in a node, which is affected by the overload, the handover will be allowed only if the cell comprises at least one node, which is also affected by the overload.

主权项

1. A method for handling of an overload by network nodes in a communications network, wherein said communications network is based upon a tree topology providing several levels of nodes in said communications network, said method comprising:
providing of information about said overload by a node of a level of said communications network to a set of network nodes of a lower level, if an overload node, said overload node being a node with regard to which said overload has occurred, is said network node or a network node of an upper level to which said network node is connected; wherein each network node comprised in said set of network nodes is connected to said network node; wherein network nodes of a first level and a second level arranged below the first level are connected if they are either connected directly or connected through at least one further network node being located in at least one level between the first level and the second level in the communications network, wherein said information comprises an indication of said overload node, and wherein said set of network nodes comprises a relay node wirelessly connected to a base station of a radio access network.