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A wireless local area network anti-interference method and wireless local area network controller

A wireless local area network and controller technology, applied in the field of network communication, can solve the problems of increased communication delay and ineffective support, and achieve the effects of reducing co-channel interference, improving throughput, and ensuring effective air interface rate

Active Publication Date: 2019-07-19
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This causes the AP to go through many retransmissions before reducing the rate of each level, which increases the communication delay, and services that are sensitive to delay, such as games and videos, cannot be effectively supported.

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  • A wireless local area network anti-interference method and wireless local area network controller
  • A wireless local area network anti-interference method and wireless local area network controller
  • A wireless local area network anti-interference method and wireless local area network controller

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0059] An embodiment of the present invention provides a method for anti-jamming of a wireless local area network, such as figure 1 As shown, it is applied to a wireless access system composed of multiple wireless access points AP deployed based on a fixed-space row-column matrix. The wireless access system includes N channels, and the N channels are divided into M groups. Each group Contains three non-overlapping channels arranged in an initial order, the first r...

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Abstract

The embodiment of the present invention provides a wireless local area network anti-interference method applied to a wireless access system composed of a plurality of wireless access points (AP) which are deployed based on a fixed spacing row-column matrix. The method comprises the following steps of obtaining the signal intensity indication RSSI value of each AP received by other AP during a message sending process; according to the RSSI value, adjusting the current sending power of each AP; according to the RSSI value and the current sending power, adjusting the energy detection CCA threshold value of each AP; after the current sending power and the CCA threshold value are adjusted, indicating each AP to adjust the sending speed, so that each AP sends a message according to the adjusted sending speed. Meanwhile, the present invention also provides a wireless local area network controller. According to the present invention, the throughput of a wireless local area network under a dense deployment environment is improved.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a wireless local area network anti-interference method and a wireless local area network controller. Background technique [0002] At present, my country has divided 13 channels in the 2.4GHz wireless local area network WLAN communication, the signal bandwidth of each channel is 20MHz, and the center frequency interval of every other channel is 5MHz, as shown in Table 1 below. [0003] channel Center frequency (MHz) 1 2412 2 2417 3 2422 4 2427 5 2432 6 2437 7 2442 8 2447 9 2452 10 2457 11 2462 12 2467 13 2472 [0004] Table 1 [0005] In the case of large-scale and dense deployment of wireless access point APs, such as college dormitories, exhibition centers, stadiums, etc., the current channel allocation method is often to select channels with three non-overlapping frequency bands for allocation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14H04W52/24H04W74/00
CPCH04W16/14H04W52/245H04W74/002H04W74/0808H04W84/12
Inventor 杨英陈建祥黄赞
Owner RUIJIE NETWORKS CO LTD