Method for switching wimax access network to wifi access network and related equipment

Abstract

The embodiment of the invention discloses a method and related equipment for switching from a WiMAX access network to a WiFi access network. Wherein, the method includes: receiving an access network switching request message sent by the terminal through the WiMAX access network; maintaining the current service connection of the terminal in the WiMAX core network; sending an access network switching request message to the terminal through the WiMAX access network Responding to a message, so that the terminal switches radio frequencies and performs network access through the WiFi access network; receives an address binding update message of the terminal sent by the WiFi access network, and the address binding update message includes the The first address of the terminal when the terminal accesses through the WiFi access network; switching the current service connection of the terminal to the first address. Through the embodiment of the present invention, the service continuity in the process of switching from WiMAX to WiFi in single radio frequency mode can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method for switching from a WiMAX access network to a WiFi access network and related equipment. Background technique [0002] WiFi (Wireless Fidelity, wireless fidelity) is an important wireless local area network technology, and is also a wireless broadband access technology. At present, there are a large number of WiFi hotspots in operation around the world, providing free or paid wireless Internet access services. WiMAX (Worldwide Interoperability for Microwave Access, Microwave Access Global Interoperability) is also a wireless broadband access technology. There are many operators in the world using WiMAX technology to build wireless broadband access networks. [0003] Both WiFi and WiMAX are important wireless broadband access technologies, and each has its own advantages and disadvantages. Among them, WiFi network deployment is fast, low in cost, high in...

AI Technical Summary

Problems solved by technology

When working in single-radio mode, only one radio frequency is working before and after switching, which makes it difficult to ensure service continuity. For example, when switching between a WiMAX base station and a WiFi hotspot, the connection established between the terminal and the service network will be interrupted. Moreover, after switching, the user also needs to make settings such as entering the network again.

When working in dual-radio mode, the two radio circuits of the dual-mode terminal work simultaneously before and after switching. For example, while the WiMAX radio is performing normal communication, the WiFi radio can perform network access, authentication, and connection establishment. Afterwards, the service data The path is switched to the newly-built path, and the WiMAX radio frequency is turned off at the end, so that a relatively smooth switching process can be achieved. However, for WiMAX and WiFi dual-mode terminals, the frequency spectrum used by most WiMAX networks actually deployed, due to the WiMAX radio frequency When working with WiFi radio frequency at the same time, it will cause great interference to each other. Therefore, in fact, there are great difficulties in the specific application of WiMAX and WiFi dual radio frequency working mode. Whether it can effectively solve the interference problem has no definite answer.

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