Method for avoiding data loss in switching process

Abstract

The invention relates to a method for avoiding losing data in switch process, wherein it is characterized in that: when receiver switches from local wireless access point AP into target AP, it will send buffer information to wireless access point AP; AP based on buffer information processes the data sent to the receiver, via the target AP sends processed data to the receiver. The invention can avoid losing data, confirm data integrality. And receiver STA can switch without complete data transmission by AP, to reduce time delay.

Description

technical field [0001] The present invention relates to the field of communications, and in particular to a handover process of a WLAN (Wireless Local Area Network, wireless local area network). Background technique [0002] Compared with wired networks, WLAN has the characteristics of easy deployment, high port density, and mobility, and has been widely used. With the development and improvement of WLAN technology, WLAN will be the mainstream technology of broadband wireless network, combined with mobile communication technology, and become a public wireless local area network of the carrier level. It is mainly composed of a wireless station (Station, STA), a wireless access point (Access Point, AP) and a distributed system (Distributed System, DS). Among them, the access terminal can move arbitrarily in the network, the wireless access point is used to realize the cell management including cell handover, the management of the wireless access terminal and the bridging func...

AI Technical Summary

Problems solved by technology

[0009] 1. The STA must wait for the data to be transmitted before switching to the target AP, which causes a delay

[0010] 2. Since the STA is mobile, in the process of waiting for the transmission of the queue frame, the connection with the current AP may be disconnected due to the weakening of the signal, which will also cause data loss

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