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公开(公告)号：CA2568038A1
公开(公告)日：2005-12-15
申请号：CA2568038
申请日：2005-05-26
Applicant: SYMBOL TECHNOLOGIES INC
Inventor： ZENG GUANG , GOREN DAVID P , VU HOAI XUAN
Abstract: A method for estimating a location of a wireless device in a wireless local network is provided. The method includes forming a first set comprised of the signal strength received from access points that the wireless device received a signal from and an indicator of no signal strength measured for access points that the wireless device did not receive a signal from. Next, a scan subset can be formed comprised of access points in the first set that has associated signal strength. Next, a cluster comprised of the calibration points can be formed based on the scan subset. A distance between the first set and each of the calibration point in the cluster can be calculated. Then, the smallest distance can be selected as the location estimate.
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