Augmentation of commercial wireless location system (WLS) with moving and/or airborne sensors for enhanced location accuracy and use of real-time overhead imagery for identification of wireless device locations
    4.
    发明授权
    Augmentation of commercial wireless location system (WLS) with moving and/or airborne sensors for enhanced location accuracy and use of real-time overhead imagery for identification of wireless device locations 有权
    使用移动和/或机载传感器来增强商用无线定位系统(WLS),以提高定位精度,并使用实时开销图像来识别无线设备位置

    公开(公告)号:US07427952B2

    公开(公告)日:2008-09-23

    申请号:US11398782

    申请日:2006-04-06

    IPC分类号: G01S1/24 G01S5/06 G01S5/12

    CPC分类号: G01S5/0226 G01C11/00 G01S5/06

    摘要: Mobile LMUs can be used in a Wireless Location System to provide detection coverage in areas lacking adequate receiver coverage. The mobile LMUs can be used to detect the radio frequency (RF) transmissions from wireless handsets and devices over a period of time to permit determination of their location. The mobile LMU's time, position, and velocity is calculated and transmitted to a SMLC along with any transmissions received from wireless devices. The SMLC analyzes and resolves the Doppler component of the wireless device while compensating for the Doppler component of the mobile LMU. The position and velocity of the wireless device can be compared with real-time imagery taken by the mobile LMU platform to accurately determine the location of the wireless device. To enhance the mobile LMU's ability to detect a signal of interest, which may be very weak and/or corrupted by noise, a process may be employed whereby the low power mobile terminals' signals are received at receiving sites and stored in memory. Then, a more powerful replica of the SOI is received at a later time from a network controller, or BTS, and this is employed to enhance the correlation processing of the SOI in memory.

    摘要翻译: 移动LMU可用于无线位置系统,以在缺乏足够的接收机覆盖的区域提供检测覆盖。 移动LMU可用于在一段时间内检测来自无线手机和设备的射频(RF)传输,以允许确定其位置。 计算移动LMU的时间,位置和速度并将其发送到SMLC以及从无线设备接收的任何传输。 SMLC分析并解决无线设备的多普勒分量,同时补偿移动LMU的多普勒分量。 无线设备的位置和速度可以与移动LMU平台拍摄的实时图像进行比较,以准确地确定无线设备的位置。 为了增强移动LMU检测感兴趣的信号(其可能非常弱和/或被噪声破坏)的能力,可以采用这样的过程,由此在接收站点接收低功率移动终端的信号并将其存储在存储器中。 然后,在后来从网络控制器或BTS接收更强大的SOI复制品,并且这被用于增强存储器中的SOI的相关处理。

    Subscriber selective, area-based service control
    8.
    发明授权
    Subscriber selective, area-based service control 有权
    用户选择性,基于区域的服务控制

    公开(公告)号:US08463297B2

    公开(公告)日:2013-06-11

    申请号:US11965481

    申请日:2007-12-27

    CPC分类号: H04W48/04 H04W4/021

    摘要: A method for use in controlling a mobile device's access to one or more wireless communications networks (WCNs) with an overlaid wireless location system (WLS) includes monitoring a set of one or more predefined signaling links of at least one WCN, and detecting an event associated with the mobile device. Next, using a low-accuracy location function of the WLS, the system determines that the mobile device is within a defined area of interest and is potentially within a defined quiet zone. Next, using a high-accuracy location function of the WLS, the system determines a precise geographic location of the mobile device and based thereon confirms that the mobile device is within the quiet zone or at least within an area of ambiguity around the quiet zone. Finally, the mobile device's access to the wireless communications network is limited, e.g., according to a pre-defined rule established by the carrier. This approach allows finer definition of the fenced area while also minimizing the load on the high-accuracy location function. The proximity threshold is preferably based on the accuracy of the underlying location technology.

    摘要翻译: 一种用于控制移动设备对具有覆盖的无线定位系统(WLS)的一个或多个无线通信网络(WCN)的访问的方法包括监视至少一个WCN的一个或多个预定信令链路的集合,并且检测事件 与移动设备相关联。 接下来,使用WLS的低精度定位功能,系统确定移动设备在定义的感兴趣区域内并且潜在地在定义的安静区域内。 接下来,使用WLS的高精度位置功能,系统确定移动设备的精确地理位置,并且基于此确认移动设备在安静区域内或至少在安静区域周围的模糊区域内。 最后,移动设备对无线通信网络的访问受到限制,例如,根据由载体建立的预定义规则。 这种方法可以更精细地定义围栏区域,同时最大限度地降低高精度定位功能的负担。 接近阈值优选地基于底层定位技术的准确性。

    Interference Detection, Characterization and Location in a Wireless Communications or Broadcast System
    9.
    发明申请
    Interference Detection, Characterization and Location in a Wireless Communications or Broadcast System 有权
    无线通信或广播系统中的干扰检测,表征和位置

    公开(公告)号:US20120154213A1

    公开(公告)日:2012-06-21

    申请号:US13407224

    申请日:2012-02-28

    IPC分类号: G01S19/42 G01S3/02

    摘要: A Wide Area Sensor Network (WASN) is disclosed that utilizes wideband software defined radios (SDRs) to monitor RF energy over a wide frequency range, detect when critical frequencies are being jammed or otherwise interfered with, and locate the source of the interference so that the interference can be eliminated. The WASN may use one or more geolocation techniques In addition, the WASN may detect and locate unauthorized transmitters as well as estimate the transmitted power of authorized transmitters to assure they are not transmitting more power than authorized.

    摘要翻译: 公开了广域传感器网络(WASN),其利用宽带软件定义的无线电(SDR)来监视宽频率范围内的RF能量,检测关键频率是否被卡住或以其他方式干扰,并定位干扰源,使得 可以消除干扰。 WASN可以使用一个或多个地理定位技术。此外,WASN可以检测和定位未经授权的发射机,以及估计授权发射机的发射功率,以确保它们不会传输比授权的更多的功率。