ADAPTIVE WAKE-UP SCHEDULING UNDER PRS MUTING
    12.
    发明申请

    公开(公告)号:US20180317196A1

    公开(公告)日:2018-11-01

    申请号:US15581111

    申请日:2017-04-28

    CPC classification number: G01S1/20 G01S1/045

    Abstract: Systems, methods, apparatuses, and computer-readable media for adaptive wake-up scheduling under PRS muting are disclosed. For example, A mobile device can measure a plurality of reference signals for positioning having a muting pattern cycle comprising two or more time periods. The mobile device, during an evaluation phase, can receive during one or more evaluation time periods within the muting pattern cycle, reference signals detectable by the mobile device during the one or more evaluation time periods within the muting pattern cycle. The mobile device can determine a subset of the muting pattern cycle for measuring reference signals, where the subset of the muting pattern cycle comprises a number of time periods fewer than the two or more time periods of the muting pattern cycle. The mobile device then measures reference signals only during the determined subset of the muting pattern cycle.

    ENHANCEMENTS TO OBSERVED TIME DIFFERENCE OF ARRIVAL POSITIONING OF A MOBILE DEVICE

    公开(公告)号:US20180146332A1

    公开(公告)日:2018-05-24

    申请号:US15593153

    申请日:2017-05-11

    Abstract: A mobile station performs Observed Time Difference of Arrival (OTDOA) positioning by measuring a time of arrival (TOA) of downlink signals transmitted from a reference cell and one or more neighbor cells. Reference Signal Time Differences (RSTDs) are generated using TOA measurements from the reference cell and each neighbor cell. The mobile station reports to a location server location information, including the RSTD measurements and the times of measurement for the TOA measurements. The mobile station may further generate and report additional RSTD and/or TOA measurements and associated times of measurement for the reference cell and/or neighbor cells. A location server may use the RSTD measurements, the times of measurement and any TOA measurements to determine a position of the mobile station taking into account user motion and base station clock drift and/or may adjust the uncertainty of the resulting position.

    Mobile device positioning using a variable bandwidth pilot signal
    16.
    发明授权
    Mobile device positioning using a variable bandwidth pilot signal 有权
    使用可变带宽导频信号进行移动设备定位

    公开(公告)号:US09485619B1

    公开(公告)日:2016-11-01

    申请号:US15012377

    申请日:2016-02-01

    CPC classification number: H04W4/02 H04L5/0048

    Abstract: A mobile device position determination method includes: determining a plurality of bandwidths of a pilot signal corresponding to different times at which the pilot signal is received by a mobile device from a base station, the plurality of bandwidths of the pilot signal including a first bandwidth corresponding to a first time at which the pilot signal is received and a second bandwidth corresponding to a second time at which the pilot signal is received, the second time being after the first time; filtering the pilot signal using the second bandwidth; determining a positioning parameter from the pilot signal filtered using the second bandwidth; and determining a position of the mobile device using the positioning parameter.

    Abstract translation: 移动设备位置确定方法包括:确定对应于移动设备从基站接收导频信号的不同时间的导频信号的多个带宽,导频信号的多个带宽包括对应的第一带宽 到达接收导频信号的第一时间和对应于接收到导频信号的第二时间的第二带宽,第二次是在第一次之后; 使用第二带宽对导频信号进行滤波; 从使用所述第二带宽滤波的导频信号确定定位参数; 以及使用所述定位参数确定所述移动设备的位置。

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