发明名称 METHOD AND APPARATUS TO CORRECT INDOOR POSITIONING BY UTILIZING WI-FI HANDOVERS
摘要 A system and method may dynamically correct the dead reckoning (DR) position of a mobile device. An indoor or outdoor venue may have Access Points (APs) dispersed around its interior. Each time that a mobile device experiences a handover from one AP to a new AP, the mobile device and/or the local network associated with the venue may determine whether or not the mobile device's DR position corresponds to the location of the new AP. If the mobile device's DR position does not correspond to the location of the new AP within a predetermined threshold, then the mobile device's DR position may be updated to a position associated with the new AP. As a result, the DR position of the mobile device may be continuously checked, and if need be, corrected at each AP handover associated with the venue. The APs may be Wi-Fi/WLAN APs, eNodeB's, or other APs.
申请公布号 CA2864543(A1) 申请公布日期 2015.04.04
申请号 CA20142864543 申请日期 2014.09.25
申请人 BLACKBERRY LIMITED 发明人 SHATSKY, ALEXANDER;KOUZNETSOV, ALEXANDRE
分类号 H04W4/04;G01C25/00;G01S19/10;H04W36/32 主分类号 H04W4/04
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