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WLAN link establishment method and device

A link establishment and link technology, which is applied in the communication field, can solve problems such as limited detection range and inability to establish WLAN links, and achieve the effects of expanding detection range, saving processing overhead, and avoiding bandwidth

Active Publication Date: 2019-03-05
HISILICON (SHANGHAI) TECH CO LTD
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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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  • WLAN link establishment method and device
  • WLAN link establishment method and device

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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

The invention discloses a WLAN link establishment method and device. The method comprises the steps that a first network device adopts an initial bandwidth broadcast detection request to detect whether a detection response corresponding to the detection request and sent by a second network device is received or not; if the detection response is not received, then an adjusted bandwidth broadcast detection request is adopted, and the step of detecting whether the detection response corresponding to the detection request and sent by the second network device is received or not is executed again,wherein the adjusted bandwidth refers to the bandwidth smaller than the bandwidth used last time; and if the detection response is received, a WLAN link is established with the second network device,wherein the bandwidth of the WLAN link is the bandwidth used when the detection response is received. According to the scheme provided by the WLAN link establishment method and device, under the condition that the detection response corresponding to the detection request is not received, the detection request is sent again by adopting the smaller adjusted bandwidth, so that the detection range isexpanded, and the WLAN link is successfully established.

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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IPC IPC(8): H04W76/10H04W84/12
CPCH04W84/12H04W76/10H04W76/18H04W76/20
Inventor 顾燕杰王树起李卫华
Owner HISILICON (SHANGHAI) TECH CO LTD
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