Channel scanning method, channel scanning device, storage medium and terminal

Abstract

The invention discloses a channel scanning method, channel scanning device, a storage medium and a terminal. The channel scanning method comprises the following steps: when scanning the current channel, within a time interval where the current channel sends a detection request frame, determining whether to prolong minimum channel dwell time of the current channel; if prolonging is determined, updating the minimum channel dwell time of the current channel, otherwise, maintaining the minimum channel dwell time of the current channel to be constant; on the current channel, competing for a right to use the channel based on CSMA, when the right to use the channel is obtained, sending the detection request frame, and starting a minimum channel swell time timer, wherein timing time of the minimumchannel swell time timer is set based on the minimum channel dwell time. Through the method, the device, the storage medium and the terminal provided by the embodiment of the invention, channel scanning can be optimized, and channel scanning efficiency is improved.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a channel scanning method and device, a storage medium, and a terminal. Background technique [0002] Currently on the market, many Wireless Fidelity (Wi-Fi) devices support two frequency bands of 2.4GHz and 5GHz. The 2.4GHz frequency band includes 14 channels, and the 5GHz frequency band includes 42 channels, wherein the channel bandwidth is 20MHz or 10MHz. [0003] For a complete Wi-Fi channel scan, all the channels mentioned above will be scanned once. Taking the fixed scan time of 40 milliseconds for each channel as an example, the scan time required for the 2.4GHz band is: 14×40=560 milliseconds; the scan time required for 5GHz is: 42×40=1680 milliseconds. Take the fixed scan time of 100 milliseconds for each channel as an example: the scan time required for 2.4GHz is: 14×40=1400 milliseconds; the scan time required for 5GHz is: 42×40=4200 milliseconds...

AI Technical Summary

Problems solved by technology

[0004] When the channel scanning time is long, it will have many negative effects on the Wi-Fi device: for example, performing channel scanning before the connection of the Wi-Fi device will cause the connection process to be prolonged; Performing channel scanning before roaming will prolong the roaming process; for another example, if a Wi-Fi device performs channel scanning when performing functions such as positioning, the channel scanning time will reduce the efficiency of positioning and other functions

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