发明名称 |
METHODS AND APPARATUS FOR MOBILE DEVICE BASED LOCATION DETERMINATION IN A MOBILE COMMUNICATIONS SYSTEM |
摘要 |
<p>Methods and apparatus related to determining location of mobile devices based on signals and/or location history information received from other mobile devices are described. In various embodiments mobile devices monitor signals from other devices. Mobile devices store signal measurement information along with time stamp information and information identifying the device from which a measured signal was received. In various embodiments a mobile communications device which determines its location with reasonable accuracy, e.g., to within a predetermined distance or some other accuracy metric, transmits location history information indicating one or more past locations, and optionally the device's current location, and the times it was at the indicated locations. Reliability information is communicated with the time and location information in some embodiments. A device receiving the location history log can determine and/or refine its understanding of its own location and the location of other devices at different points in time.</p> |
申请公布号 |
WO2012099903(A1) |
申请公布日期 |
2012.07.26 |
申请号 |
WO2012US21604 |
申请日期 |
2012.01.17 |
申请人 |
QUALCOMM INCORPORATED;JOVICIC, ALEKSANDAR;MEASSON, CYRIL;RICHARDSON, THOMAS |
发明人 |
JOVICIC, ALEKSANDAR;MEASSON, CYRIL;RICHARDSON, THOMAS |
分类号 |
H04W64/00;G01S5/00;G01S5/02;H04W84/18 |
主分类号 |
H04W64/00 |
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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