公开(公告)号：US20130294265A1

公开(公告)日：2013-11-07

申请号：US13861924

申请日：2013-04-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Peng ,  Yungui Wang ,  Fuqing Sun

IPC: H04W24/10

CPC classification number: H04W24/10 ,  G01S5/0215 ,  G01S5/0252 ,  G01S5/0289

Abstract: The present invention provides a positioning method, device and system, which are applied to indoor WLAN positioning. A positioning server obtains location service information of APs in a set of APs to be measured; selects three APs to be measured in the set of APs to be measured according to a preset rule, and calculates a first coordinate of a terminal; if a calculated RSSI value of an unmeasured AP is not smaller than a difference between the measured RSSI value and a preset threshold, determines that signals of the unmeasured AP are not affected by reflection; and uses the first coordinate as a location coordinate of the terminal if all the three APs to be measured have been measured, thereby positioning the terminal.

Abstract translation: 本发明提供一种应用于室内WLAN定位的定位方法，装置和系统。 定位服务器获取要测量的一组AP中的AP的位置服务信息; 根据预设规则选择要测量的AP组中要测量的三个AP，并计算终端的第一坐标; 如果未测量的AP的计算的RSSI值不小于测量的RSSI值与预设阈值之间的差值，则确定未测量的AP的信号不受反射影响; 并且如果已经测量了所有要测量的三个AP，则使用第一坐标作为终端的位置坐标，从而定位终端。