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A wireless terminal positioning method and device

A technology of wireless terminal and positioning device, which is applied in the field of communication to achieve the effect of cost saving

Active Publication Date: 2018-12-25
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the traditional WLAN positioning technology, there are still many difficulties and challenges

Method used

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  • A wireless terminal positioning method and device
  • A wireless terminal positioning method and device
  • A wireless terminal positioning method and device

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] In a conventional implementation solution, the WLAN generally uses three or more APs (Access Points, wireless access points) to sense location parameters of the wireless terminal for positioning the wireless terminal STA. The location parameters mentioned here are usually indirectly characterized by the AP according to signal strength or other parameters. After obtaining multiple position parameters, since the position of the AP is known, the position of the STA can be calculated by solving at least one ternary equation system according to the triangulation positioning algorithm. In the application requirement of positioning, if you want to locate the STA more accurately, you need to deploy more APs; on the other hand, if you want to achieve no or few positioning dead spots in the area covered by the WLAN, Then more APs also need to be deployed. Different fr...

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Abstract

The invention provides a wireless terminal positioning method and device. The wireless terminal positioning method is applied to wireless network equipment; the wireless network equipment comprises an antenna selection switch and at least three antennae; the method comprises the following steps: selecting the next antenna from a preset antenna group as a current working antenna by controlling the antenna selection switch, wherein the antenna group comprises at least three antennae; sending a positioning message to an STA to be positioned through the current working antenna; according to a response message, in allusion to the positioning message, returned by the STA to be positioned, determining a position parameter of the STA to be positioned under the current working antenna, and judging whether an unselected antenna exists in the antenna group, if so, returning to an antennae control unit for processing, otherwise, ending the process. Compared with the prior art, the wireless terminal positioning method and device have the advantage as follows: a network owner does not need to deploy a large number of APs for positioning, so that the AP deploying cost is greatly reduced.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a wireless terminal positioning method and a corresponding device. Background technique [0002] Wireless local area network (WLAN) has achieved tremendous development in the past ten years. From small applications in homes to large-scale networking in shopping malls, public places, and industrial enterprises, WLAN is helping people access the network more conveniently. In some large-scale indoor deployment applications, in addition to satisfying users' access to the network, WLAN undertakes the service of forwarding user packets. People also hope that WLAN can locate wireless terminals conveniently and quickly. This technology is extremely valuable for many people. Drivers can use the positioning function provided by the mall to find their vehicles conveniently and quickly. There are still many difficulties and challenges in the traditional WLAN positioning te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/02H04W4/33H04W64/00
CPCH04W64/006
Inventor 徐国祥张海涛
Owner NEW H3C TECH CO LTD
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