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Link quality detection method and device and wireless access device

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

Active Publication Date: 2018-10-23
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 receive the STA's response message to the link detection message reply only 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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  • Link quality detection method and device and wireless access device
  • Link quality detection method and device and wireless access device
  • Link quality detection method and device and wireless access device

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Embodiment Construction

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

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

[0026] Beacon frame (beacon frame): It is a type of data frame in WLAN, which is sent periodically by AP so that STA can discover WLAN and judge whether there are data packets buffered in AP.

[0027] Listen Interval: When STA is connected to WLAN and negotiates working parameters with AP, the sleep tim...

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Abstract

Embodiments of the invention provide a link quality detection method and device and a wireless access device. The link quality detection method comprises the following steps of receiving a link quality detection command; for a wireless terminal in a dormant state, when the wireless access device does not buffer a data message to be transmitted to the wireless terminal, setting a TIM domain in a beacon frame to be broadcast according to an association identifier of the wireless terminal; broadcasting the beacon frame according to a preset beacon period; receiving an empty data message sent by the wireless terminal after the beacon frame is acquired; and determining the link quality with the wireless terminal according to the received signal strength of the empty data message. According to the scheme, the link testing can be carried out on the wireless terminal in the 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, 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 WLAN is radio waves, it is susceptible to external interference. Therefore, in order to ensure the reliability of transmission, it is necessary to check the link quality. [0003] At present, for link quality detection, AP (Access Point, access point) sends link detection messages to STA (Station, wireless terminal), and STA replies to AP after receiving link detection messages. Response message: After receiving the response me...

Claims

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Application Information

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