System and method for selecting route under multi-gateway model of core network

Abstract

The invention discloses a system for realizing the routing function under the multi-gateway model of a core network, which comprises a network management system, at least one MSC Server and at least four MGW. The MSC Server comprises a calling control module, a routing selection module and a storage module; the network management system manages the MSC Server and MGW and carries out the parameter configuration and stores the configuration parameters; the calling control module receives the calling of the gateway at the side of an incoming bureau and controls the MGW on the bearer path to establish the bearing according to the information of the bearer link; the routing selection module calculates the tension degree parameters of different paths according to the total number of the configuration resources and the total number of the occupied resources and selects the bearer path and sends the information to the calling control module; the storage module stores the configuration parameters of the routing resources. The invention also discloses a method for realizing the routing function under the multi-gateway model of the core network and overcomes the defect that the unfair allocation of the resources between gateways causes the congestion and ensures that the entire network runs controllably, steadily and fairly.

Description

technical field [0001] The present invention relates to a system and a method of a 3GWCDMA-R4 core network in the communication field, in particular to a system and a method for realizing the routing selection function under the multi-gateway model of the core network. Background technique [0002] 3GWCDMA-R4 (3G refers to the third-generation mobile communication technology, WCDMA refers to wideband code division multiple access, R4 is the version number) The basic structure of the network is the separation of bearer and control, and the control part of the call is concentrated in the MSC Server (Mobile Service Switching Center) server), and the bearer and connection part of the call is concentrated on the MGW (media gateway). The typical network architecture is that one MSC Server controls one MGW, and multiple sets of such devices are interconnected to form a network. But the disadvantage of this networking mode is that each MGW needs an MSC Server to control it, which wi...

AI Technical Summary

Problems solved by technology

Therefore, there is another way of route selection, which is based on the load sharing method. This method simply uses the proportion of resources as the weight to allocate traffic to two different paths. There are more resource allocations. The allocated traffic volume is larger, and the allocation of resource allocation is less. However, this method does not consider the user's call time. Some users may hang up soon after making a call, while some users may hang up. If the call takes a long time, bearer resources will always be occupied

On the other hand, there may not only be traffic between these two gateways on the path of the current call, but there may also be traffic between other gateways, and these two gateways do not make the traffic of this path busy. The change of degree is used as the basis for route selection, so the final result will be disordered and uncontrollable, and it is also prone to resource exhaustion, but the probability of this situation is reduced.

[0006] It can be seen that the technologies and routing strategies currently used in practical applications are actually unfair, and they cannot better coordinate resource utilization and allocation among gateways in the multi-gateway model.

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