发明名称 |
REAL-TIME LOCATION ESTIMATION OF A MOBILE STATION IN A WIRELESS COMMUNICATION SYSTEM |
摘要 |
An apparatus and method is provided for real-time location estimation of a mobile station (MS) on a map of roads using non-Global Positioning Satellite location data (300) of the MS and includes a step of determining (302) a mobility of the MS. A next step (306) includes identifying a region that covers all location data. A next step (310) includes dividing the region into smaller blocks, where each block constitutes a Hidden Markov Model state. A next step (312) includes determining a distance between blocks, to be used in a varied continuous probability distribution to determining a state transition probability of each block to represent a likelihood of the MS moving to any one block. A next step (314) includes using a univariate continuous distribution as a function of a distance between each block and a raw location data. A next step (316) includes finding a most likely state/block sequence of the MS motion using the HMM state transition probability and the univariate continuous distribution as the location of the MS. |
申请公布号 |
US2012322460(A1) |
申请公布日期 |
2012.12.20 |
申请号 |
US201013522726 |
申请日期 |
2010.01.27 |
申请人 |
LIU HONG-LEI;CHEUNG KWOK LAM;HU SHENG-YU;SHEN XIAOHUI;MOTOROLA MOBILITY LLC |
发明人 |
LIU HONG-LEI;CHEUNG KWOK LAM;HU SHENG-YU;SHEN XIAOHUI |
分类号 |
H04W24/00 |
主分类号 |
H04W24/00 |
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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