A wireless network switching method

Abstract

A wireless network handover method, comprising: at least two Bluetooth base stations sending broadcast packets according to a pre-determined time period, each of the broadcast packets at least carrying a transmission power value of said broadcast packet; a mobile terminal or a back-end server calculating, according to the transmission power values and receiving power values of the broadcast packets, and a function describing how power attenuation varies with respect to a distance, a first distance between the mobile terminal and each of the Bluetooth base stations; the mobile terminal or the back-end server selecting, according to the first distances and one or more second distances between the mobile terminal and each Bluetooth base station prior to a current time, a candidate Bluetooth base station being approached by the mobile terminal; the mobile terminal and a WiFi access point selected from WiFi access points corresponding to the candidate Bluetooth base station completing a pre-connection operation; and when a power value of a broadcast packet sent by a current Bluetooth base station and received by the mobile terminal, and a power value of a broadcast packet sent by the candidate Bluetooth base station and received by the mobile terminal meet a pre-determined condition, completing a handover operation.

Description

technical field [0001] The invention relates to the field of wireless networks, in particular to a wireless network switching method. Background technique [0002] With the popularization of wireless network communication, more and more homes, offices and public service places have achieved WIFI coverage. In actual usage scenarios, since the signal coverage of each wireless router is limited, for larger places, multiple wireless routers need to be networked to provide signal coverage. Therefore, the mobile device may involve switching connections between multiple routers during the movement process. [0003] In the current technology, the hotspot switching method of the mobile device in the public area covered by multiple wireless hotspots is generally as follows: when the mobile device recognizes that the strength of the wireless signal is lower than a certain threshold, it will disconnect from the hotspot. Look for other wireless access point APs with strong signals, per...

AI Technical Summary

Problems solved by technology

When the user moves to an area where the signals of two APs overlap, a situation may arise: after connecting to AP1, the user will always be connected to AP1, and after arriving near AP2, even if the signal of AP2 is stronger than the signal of AP1, as long as If the switching threshold is not reached, the mobile device will still be connected to AP1 and will not switch to AP2

Moreover, due to the need to re-handshake and negotiate after disconnecting the old connection and before establishing a connection with the new AP, it often happens that when the device moves to the edge coverage area of ​​the wireless access point, it will be temporarily disconnected and the signal will be completed. After the switch, you can reconnect to the Internet, and the switch time is slow, resulting in poor user experience

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