Over-zone switch-over method of mobile network communication

Abstract

The invention discloses method for switching crossing zones based on service quality. After obtaining multiple delivering addresses, mobile nodes sends prepared multiple path messages to communication node. Once receiving PM message, each router replaces existing input label in PM message by new input label, which is forwarded to next router. Based on received information, each router adds a new entry to route switching table. After sending out PM message, mobile node sends message for requesting multiple paths to communication node. After receiving RM message, each MPLS kernel router determines whether RM message will stop at the router; if yes, corresponding input label is divided. Data packet generated is begun to send to two routes from the router: one is network route the original mobile node locates at; the other is new route for accessing network.

Description

technical field [0001] The invention relates to mobile network communication technology, in particular to a handover method for mobile network communication. Background technique [0002] Recently, there is a trend that more and more Internet service providers and network operators are considering the transition from IP network to MPLS network (MultiProtocol Label Switching). The traditional MPLS network is not mobile, and several solutions have been proposed to integrate mobile IP and MPLS networks, because MPLS can improve the scalability of mobile IP data forwarding processing by replacing IP-in-IP tunnels. The combination of the two can also improve the effectiveness of the system and promote the improvement of service quality in the wireless IP access network. The associated label-switched paths in the MPLS network can provide paths with appropriate QoS for different Mobile IP services. [0003] In the technology of integrating mobile IP and MPLS networks, Zhong Ren e...

AI Technical Summary

Problems solved by technology

[0007] All schemes here must assume that the border router LER must be a mobile node, but if each border router must have the function of a mobile agent, this will significantly affect the performance of the router, and at the same time the performance of the entire MPLS network will also be greatly affected

[0008] Moreover, when a mobile node, that is, a mobile terminal, for example moves from the home domain to the visited domain, a new LSP label switching channel needs to be re-established, which will inevitably consume a lot of label resources of the MPLS network, and there will also be a large segment of the MPLS network. The overlap of LSP label switching channels results in the reuse of a large number of network resources, and the increase in the number of MPLS network labels will greatly affect the performance of MPLS networks.

In addition, multicast technology can also be used to broadcast data, but if multicast is established, a multicast group must be established between the communication node and the mobile node, which will also waste a lot of network resources and operating efficiency

[0009] Therefore, how to ensure seamless end-to-end connection during handover without affecting the resources of the MPLS network and without increasing the number of labels in the MPLS network has not been able to find a more suitable solution. Solution

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