Method, system and apparatus for core network node selection

Abstract

The present invention discloses a method for selecting core-network node, wherein the method comprises the following procedures: receiving the request for accessing the core-network node by the mobile terminal; and allocating the accessed core-network node for the mobile terminal according to the current available capability ratio of the core-network node. The invention also discloses a system and a device for selecting the core-network node. The method of the invention can equalize the load of core-network node.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method, system and device for selecting core network nodes. Background technique [0002] The core network (Core Network, CN) is a network element that provides core switching and call routing functions. It includes several nodes that implement different functions, such as mobile switching center (Mobile Switch Center, MSC), gateway (Media Gateway, MGW), home Location register (Home Location Register, HLR) and so on. [0003] In the 3rd Generation Partnership Project (The 3 rd In the related agreement (TS23.326) of Partnership Project, 3GPP), the concept of MSC pool (Pool) is proposed. Specifically, in an MSC Pool, multiple MSCs run in parallel to share services in the MSC Pool. This MSC Pool may be called a CN node group. [0004] figure 1 A network structure diagram including MSC Pool in the prior art is shown. For the convenience of illustration, some node...

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Problems solved by technology

[0008] The purpose of the embodiments of the present invention is to provide a method, system and device for selecting a core network node, so as to overcome the large difference between the actual remaining available capacity ratio of the CN node and the configured ratio in the prior art. The problem that the capacity provides node selection function leads to unbalanced load of some CN nodes

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