Method for realizing network switching, device and multi-mode terminal

Abstract

An embodiment of the invention discloses a method for realizing network switching, a device and a multi-mode terminal thereof; wherein, the method comprises the following steps: transmitting a network accessing request to a second modem module, and receiving a network parameter which is fed back from the second modem module and at least comprises IP address, wherein, the IP address which is fed back from the second modem module is same with the IP address acquired by a first modem module that is accessed into the network; cutting off communication connection between a NAT module which performs address translation and the first modem module; and updating network configuration of the second modem module, and establishing communication connection between the NAT module and the second modem module. The method, device and the multi-mode terminal according to the embodiment of the invention can ensure no business stoppage when network switching occurs and furthermore improves satisfaction to user experience.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a method, device and multi-mode terminal for realizing network switching. Background technique [0002] With the development of wireless communication technology and the gradual maturity and commercialization of various wireless technologies, the high speed brought by high-bandwidth wireless technology has been favored by more and more operators, so that many operators began to use only On the basis of a single wireless network, synchronously deploy wireless networks with multiple modes of coexistence, such as WiMAX (Worldwide Interoperability for Microwave Access) network and 3G (3rd-generation, third-generation mobile communication technology) network, LTE (Long Term Evolution, long-term evolution) network and 3G network, 3G and 3G network coexistence, etc.; under this technical background, multi-mode terminals that can access multi-mode networks and realize ...

AI Technical Summary

Problems solved by technology

[0004] However, in such figure 1 In the network situation shown, when the multi-mode terminal undergoes network switching, that is, when it switches from the network connected to Modem (modem) A to the network connected to Modem B, the multi-mode terminal needs to switch the route from Modem A to Modem B, However, the NAT translation table cannot be switched from Modem A to Modem B, which will cause the data service to be uncontinuous, that is, the data service will be interrupted, which will make the user experience poor

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