A LOCALIZATION-BASED BEAMFORMING SCHEME FOR SYSTEMS WITH MULTIPLE ANTENNAS
    2.
    发明公开
    A LOCALIZATION-BASED BEAMFORMING SCHEME FOR SYSTEMS WITH MULTIPLE ANTENNAS 审中-公开
    STANDORTBASIERTES STRAHLFORMUNGSSCHEMAFÜRSYSTEME MIT MEHREREN ANTENNEN

    公开(公告)号:EP3005581A1

    公开(公告)日:2016-04-13

    申请号:EP14873402.3

    申请日:2014-12-26

    IPC分类号: H04B7/06

    摘要: A method of accurate 3D positioning with reduced cost is proposed. A user equipment (UE) receives a plurality of positioning reference signals (PRSs) from a plurality of base stations. The plurality of base stations includes a serving base station and two neighboring base stations. The UE estimates a plurality of line-of-sight (LOS) paths and corresponding indexes of the PRSs for time of arrival (TOA) and time difference of arrival (TDOA) measurements. The UE then estimates an elevation angle of the UE based on the estimated LOS paths of the PRS from the serving base station. Finally, the system (either UE or network, depending on where the coordinates are) can calculate the UE position based on the TDOA measurements and the elevation angle.

    摘要翻译: 提出了一种降低成本的精确3D定位方法。 用户设备(UE)从多个基站接收多个定位参考信号(PRS)。 多个基站包括服务基站和两个相邻的基站。 UE估计到达时间(TOA)和到达时间差(TDOA)测量的多个视线(LOS)路径和PRS的对应索引。 然后,UE基于来自服务基站的PRS的估计LOS路径来估计UE的仰角。 最后,系统(UE或网络,取决于坐标位置)可以基于TDOA测量和仰角计算UE位置。