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    • 8. 发明申请
    • Passive Uplink Time Difference of Arrival Positioning and Tracking System
    • 被动上行链路到达定位跟踪系统的时差
    • US20130225218A1
    • 2013-08-29
    • US13408939
    • 2012-02-29
    • Colin M. ArthurFrancisco Javier Garcia
    • Colin M. ArthurFrancisco Javier Garcia
    • H04W72/04
    • G01S5/0205G01S5/0221G01S5/06H04W64/00
    • A system that tracks a mobile transmitter within a communication system is disclosed. The mobile transmitter transmits in one or more predetermined communication slots, the communication slots being dynamically assigned by a system node in the communication system. The tracking system includes at least three uplink probes spatially separated from one another, each uplink probe measuring transmissions in each of the communication slots as a function of time. A cell monitor monitors downlink scheduling transmissions from the system node directed to the mobile transmitter, the scheduling transmissions specifying a time and communication slot to be utilized by the mobile transmitter in a subsequent transmission. A correlator receives the measured transmissions and the monitored downlink scheduling transmissions. The correlator uses the monitored downlink scheduling transmissions and the measured transmissions to determine a time at which a transmission from the mobile transmitter was detected at each of the uplink probes.
    • 公开了一种跟踪通信系统内的移动发射机的系统。 移动发射机在一个或多个预定通信时隙中发送,通信时隙由通信系统中的系统节点动态分配。 跟踪系统包括在空间上彼此分离的至少三个上行链路探测器,每个上行链路探测器测量每个通信时隙中的传输作为时间的函数。 小区监视器监视来自指向移动发射机的系统节点的下行链路调度传输,调度传输指定将由随后传输中的移动发射机利用的时间和通信时隙。 相关器接收所测量的传输和所监视的下行链路调度传输。 相关器使用被监视的下行链路调度传输,并且所测量的传输确定在每个上行链路探测器处检测到来自移动发射机的传输的时间。