A wifi network switching method

Abstract

The invention discloses a WIFI network switching method, which comprises the following steps: at least two Bluetooth base stations transmit broadcast messages according to a preset period, and each broadcast message at least carries a transmit power value of the broadcast message; a mobile terminal or a background server, according to the transmit power value and the received power value of the broadcast message, and a function of power attenuation changing along with distance, calculates a first distance between the mobile terminal and each Bluetooth base station; the mobile terminal or the background server, according to the first distance and one or multiple second distances before the current moment between the mobile terminal and each Bluetooth base station, selects a candidate Bluetooth base station that the mobile terminal is approaching; the mobile terminal and a candidate WIFI access point uniquely corresponding to the candidate Bluetooth base station finish a pre-connection operation; when a power value of the broadcast message sent via the current Bluetooth base station and a power value of the broadcast message sent via the candidate Bluetooth base station, which are received via the mobile terminal, meet a preset condition, the switching operation is finished.

Description

technical field [0001] The invention relates to the field of wireless networks, in particular to a WIFI 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 WIFI hotspots is generally as follows: when the mobile device recognizes that the strength of the WIFI signal is lower than a certain threshold, it will disconnect from the hotspot. Then look for other WIFI access point APs with strong signals, perform pre-co...

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 occurs that when the device moves to the edge coverage area of ​​the WIFI 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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