Method and system for refining accuracy of location positioning
    2.
    发明授权
    Method and system for refining accuracy of location positioning 有权
    提高定位精度的方法和系统

    公开(公告)号:US08295853B2

    公开(公告)日:2012-10-23

    申请号:US12618063

    申请日:2009-11-13

    IPC分类号: H04W24/00

    摘要: A method and system for accurately determining the location of the mobile device (10) is disclosed. In the mapping phase collected reference positioning data and collected cell data are used to map a covered area estimation and in the actual location determination phase the covered area estimation is calculated from actual environment data received through wireless cellular communication network (11, 12) and possibly but not necessarily from external databases (17, 19). The covered area estimation comprises at least some of the following calculations: (i) estimation of base station location, (ii) estimation of transmission range, (iii) estimation of signal map and (iv) estimation of area type. The actual location of the mobile device (10) is determined from the covered area estimation based on relative comparison between the actual environment data and estimations (i)-(iv) and weight numbers resulted from the comparison. During the both phases a database is stored in the server (14) and updated whenever new environment data is received.

    摘要翻译: 公开了一种用于准确地确定移动设备(10)的位置的方法和系统。 在映射阶段收集的参考定位数据和收集的单元数据用于映射覆盖区域估计,并且在实际位置确定阶段,根据通过无线蜂窝通信网络(11,12)接收的实际环境数据计算覆盖区域估计,并且可能 但不一定来自外部数据库(17,19)。 覆盖区域估计包括以下计算中的至少一些:(i)基站位置的估计,(ii)传输范围的估计,(iii)信号映射的估计和(iv)区域类型的估计。 基于实际环境数据与估计(i) - (iv)和比较产生的权重数字之间的相对比较,从覆盖区域估计确定移动设备(10)的实际位置。 在两个阶段期间,数据库存储在服务器(14)中,并且每当接收到新的环境数据时更新。