发明名称 |
ESTIMATION OF POSITION USING WLAN ACCESS POINT RADIO PROPAGATION CHARACTERISTICS IN A WLAN POSITIONING SYSTEM |
摘要 |
A method for estimating position using WLAN access point radio propagation characteristics in a WLAN location based service is provided. A location-based services system has a plurality of Wi-Fi access points in a target area. The Wi-Fi access points are positioned at geographic locations and have signal coverage areas. A method of characterizing at least one of the Wi-Fi access points comprises determining the geographic location of the Wi-Fi access point, dividing the signal coverage area of the Wi-Fi access point into at least one section, and determining radio propagation characteristics for each section. The radio propagation characteristics of each section characterize a radio channel of the Wi-Fi access point, and the characterization can be used in a location algorithm. |
申请公布号 |
KR20090008465(A) |
申请公布日期 |
2009.01.21 |
申请号 |
KR20087029897 |
申请日期 |
2008.12.08 |
申请人 |
SKYHOOK WIRELESS, INC. |
发明人 |
ALIZADEH SHABDIZ FARSHID;PAHLAVAN KAVEH |
分类号 |
G01S19/48;H04W16/18;G01S5/02;G01S19/25;G01S19/42;H04L12/28;H04W64/00;H04W84/12 |
主分类号 |
G01S19/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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