Method for achieving seamless service switching between cellular network and wireless local area network

Abstract

The embodiment of the invention discloses a method for achieving seamless service switching between a cellular network and a wireless local area network. According to the technical scheme of the embodiment, when a user terminal enters an overlapped area of the cellular network and the wireless local area network from the cellular network, a transmission tunnel is established between network equipment of the cellular network and the user terminal to serve as a data tunnel channel, therefore, under the conditions that user service connection is switched to the wireless local area network from the cellular network and the IP address of the user service connection is changed, the continuity of activated services in the cellular network is guaranteed, service connection does not need to be reestablished after the user terminal is switched to the wireless local area network, thus the interrupt of the activated services in the cellular network is avoided, service experience of a user is improved, and the fact that the shunting effect on cellular network services by the wireless local area network can be performed better is facilitated.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for realizing seamless switching of services between a cellular network and a wireless local area network. Background technique [0002] Since the cellular network often needs to provide business services for a large number of users within a large coverage area, the bandwidth resources that can be allocated to a single user are usually limited, which cannot meet the user's increasing requirements for high transmission rates; on the other hand, Due to the limitation of spectrum resources of the cellular network, the user traffic that it can carry is close to saturation, so other networks are urgently needed to offload part of the user traffic of the cellular network. [0003] As a low-cost, high-speed wireless communication network, wireless local area network can provide high transmission rate for users in hotspot areas with low mobility, so it has been widely used...

AI Technical Summary

Problems solved by technology

In this way, when the business connection is switched from the cellular network to the wireless local area network, the original business cannot maintain continuity due to the change of the IP address used by the user terminal, and the business connection must be re-established with a new IP address before the communication can continue , therefore, seamless switching of services cannot be realized

[0010] For the burst-type business represented by web browsing, since the user initiates a new web browsing request with the current IP address before browsing a page, the change of the user IP address during the service connection switching process will give the user The impact on the user experience is not obvious; however, if the user is using services with a long duration such as voice calls, streaming media playback, and online games, the change of the user's IP address will cause the user's business to be interrupted or even need to be restarted. Establish business, thereby affecting the user's business experience

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