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Method and equipment for establishing wlan link

A link establishment and link technology, applied in the field of communication, can solve problems such as the inability to establish a WLAN link and limited detection range, and achieve the effects of saving processing costs, expanding the detection range, and ensuring accuracy

Active Publication Date: 2021-02-09
海思技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present application provides a method and device for establishing a WLAN link to solve the problem in the prior art that the WLAN link cannot be established due to the limited detection range

Method used

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  • Method and equipment for establishing wlan link
  • Method and equipment for establishing wlan link
  • Method and equipment for establishing wlan link

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Embodiment Construction

[0032] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0033] Please refer to figure 1 , which shows a schematic diagram of an implementation environment provided by an embodiment of the present application. The implementation environment includes: a first network device 110 and a second network device 120 .

[0034] The network devices (including the first network device 110 and the second network device 120 ) are devices capable of establishing WLAN links with other network devices. Exemplarily, the network device can be a terminal device, such as a mobile phone, a tablet computer, an e-book reader, a multimedia playback device, etc.; it can also be a wearable device, such as a smart watch, a smart bracelet, smart glasses, etc.; it can also be a smart Toys, such as drones, smart ...

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Abstract

A method and a device for establishing a WLAN link. The method comprises: a first network device using an initial bandwidth to broadcast a probe request; detecting whether a probe response corresponding to the probe request and sent by a second network device has been received and, if the probe response has not been received, using an adjusted bandwidth to broadcast the probe request; and then beginning to re-execute from the aforementioned step of detecting whether a probe response corresponding to the probe request and sent by second network device has been received, the adjusted bandwidth being a smaller bandwidth than the previously used bandwidth; and, if a probe response is received, then establishing a WLAN link with the second network device, the bandwidth of the WLAN link being the bandwidth used when receiving the probe response. The solution provided in the embodiments of the present application uses a smaller adjusted bandwidth to re-send a probe request when a probe response corresponding to the probe request has not been received, and thereby expands the scope of the probe, ensuring successful establishment of a WLAN link.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular to a method and device for establishing a wireless local area network (Wireless Local Area Networks, WLAN) link. Background technique [0002] WLAN is a very convenient data transmission system, which refers to the application of wireless communication technology to interconnect network devices to form a network system that can communicate with each other and realize resource sharing. [0003] Before a network device establishes a WLAN link, it first searches for other network devices that can establish a WLAN link with it. In the prior art, a network device uses a bandwidth of 20 MHz to send a probe request to find other network devices with which a WLAN link can be established. [0004] Under normal circumstances, the maximum transmission distance that a probe request sent with a 20MHz bandwidth can reach is about 400 meters. If the distan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W76/10H04W84/12
CPCH04W84/12H04W76/10H04W76/18H04W76/20
Inventor 顾燕杰王树起李卫华
Owner 海思技术有限公司
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