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A link quality detection method, device and wireless access equipment

A technology for wireless access equipment and link quality detection, which is applied in the field of link quality detection and wireless access equipment, and can solve problems such as inability to perform link tests

Active Publication Date: 2021-06-18
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the above link quality detection method, the AP can only receive the STA's response message to the link detection message reply when the STA is in the active state. If the STA is in the dormant state, the STA neither receives nor sends data. , that is, the STA does not respond to the link detection message sent by the AP. Therefore, the AP cannot perform the link test for the STA in the dormant state.

Method used

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  • A link quality detection method, device and wireless access equipment
  • A link quality detection method, device and wireless access equipment
  • A link quality detection method, device and wireless access equipment

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Embodiment Construction

[0024] 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 making creative efforts belong to the protection scope of the present invention.

[0025] First, a brief description will be given of related concepts involved in the method provided by the embodiment of the present invention.

[0026] Beacon frame (beacon frame): It is a type of data frame in the WLAN, which is periodically sent by the AP, so that the STA discovers the WLAN and judges whether there is a data message cached in the AP.

[0027] Listen Interval (monitoring period): When the STA connects to the WLAN and negotiates working param...

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Abstract

Embodiments of the present invention provide a link quality detection method, device, and wireless access device, wherein the link quality detection method may include: receiving a link quality detection instruction; If the device has not cached the data message to be transmitted to the wireless terminal, according to the association identifier of the wireless terminal, set the TIM field in the beacon frame to be broadcast; broadcast the beacon frame according to the preset beacon period; receive A null data packet sent by the wireless terminal after obtaining the beacon frame; and determining the link quality with the wireless terminal according to the received signal strength of the null data packet. Through this solution, it is possible to implement a link test on a wireless terminal in a dormant state.

Description

technical field [0001] The present invention relates to the technical field of wireless networks, in particular to a link quality detection method, device and wireless access equipment. Background technique [0002] WLAN (Wireless Local Area Network) refers to a local area network composed of wireless channels instead of traditional transmission media. The emergence of WLAN can free each terminal on the network from the shackles of wired connection media and realize the mobility of each terminal. Since the transmission medium of the WLAN is radio waves, it is susceptible to external interference. Therefore, in order to ensure the reliability of transmission, it is necessary to detect the link quality. [0003] At present, for the detection of the link quality, it is mainly that the AP (Access Point, access point) sends a link detection message to the STA (Station, wireless terminal), and the STA replies to the AP after receiving the link detection message. In the response m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/318H04W24/08H04W52/02
CPCH04W24/08H04W52/0225H04B17/318Y02D30/70
Inventor 聂树伟韩冰
Owner NEW H3C TECH CO LTD