Wireless channel competition method and system

Abstract

The invention provides a wireless channel competition method and system. The wireless channel competition method and system are applied to a wireless network which comprises wireless access point devices (APs) and at least two wireless client side devices (CPE). The method includes the steps that the size of a local minimum competition window is calculated and configured according to the ratio of the average speed of a cache region to the preset reference speed and the size of a local standard competition widow, the number of items is set as zero, and meanwhile the content of the cache region is cleared; when the sending speed of data between the CPE and the APs changes, the CPE can adjust the size of the minimum competition window according to the current average sending speed, zooms out the minimum competition window when the average sending speed increases, or else zooms up the minimum competition window. Consequently, the channel competition chance of the CPE is increased or decreased, the whole throught of the APs is increased, and user experience is improved.

Description

Technical field [0001] The present invention relates to the field of communication, in particular to a method and system for wireless channel competition in a wireless local area network WLAN. Background technique [0002] In the actual use of wireless local area network WLAN, the distance between the fixed position of the wireless client device, CPE, and the wireless access point device, AP, and the local installation environment are different, resulting in the connection rate between the fixed position of the CPE and the AP Because of the difference, the actual data sending and receiving rates are also different; even for the same CPE, the actual sending and receiving data rates of data packets in different periods are also different due to the different levels of interference in the local environment at each time. In addition, for the mobile CPE, the data transmission rate between the CPE and the AP is different at different times due to the inconsistent distance between it an...

AI Technical Summary

Problems solved by technology

[0003] Currently, the distributed control function (DCF) used in WLAN is to ensure that wireless clients at different rates have the same opportunity to compete for the wireless channel; and after the CPE with a low data rate competes for the channel, it takes more time to send the same amount of data. It takes longer than the high data rate CPE, so when such a low-speed CPE continues to successfully seize the channel and send packets, the overall throughput of the AP will continue to decline; further, once the low-speed CPE uses video services with large data traffic, Then other CPEs with faster data sending rates under the same AP will experience a rapid drop in local data rate due to the increasing waiting time, seriously affecting user experience

In addition, when the AP and all CPEs compete for the same channel, they have the same opportunity, so the AP is more likely to receive the message from the CPE, which causes the uplink throughput of the AP to be much higher than the downlink throughput of the AP, causing users to access Slow network

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