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    SECURE GLOBAL NAVIGATION SATELLITE SYSTEMS
    1.
    发明申请
    SECURE GLOBAL NAVIGATION SATELLITE SYSTEMS 有权

    公开(公告)号：US20220066045A1

    公开(公告)日：2022-03-03

    申请号：US17523768

    申请日：2021-11-10

    Applicant: QUALCOMM Incorporated

    Inventor： Dominic Gerard FARMER ,  Mangesh CHANSARKAR

    IPC: G01S19/20 ,  G01S19/08 ,  G01S19/42 ,  G01S5/00 ,  G01S19/07

    Abstract: Apparatuses and methods of securing Global Navigation Satellite Systems are disclosure. In one exemplary embodiment, a mobile device may comprise: a communication interface configured to monitor signals from a plurality of satellites, a processor configured to determine impairment of one or more satellites in the plurality of satellites using the signals form the plurality of satellites, a memory configured to store a status of the determined impairment of one or more satellites in the plurality of satellites, and the communication interface that transmits the status of the determined impairment of the one or more satellites in the plurality of satellites to a server. The processor further determines a position of the mobile device using the status of the determined impairment of one or more satellites in the plurality of satellites, and stores the determined position and a corresponding digital certificate indicative of authenticity of the determined position in a memory.

    Reference Oscillator Management for Wireless Devices Having Position Determination Functionality
    3.
    发明申请
    Reference Oscillator Management for Wireless Devices Having Position Determination Functionality 有权
    具有位置确定功能的无线设备的参考振荡器管理

    公开(公告)号：US20130295865A1

    公开(公告)日：2013-11-07

    申请号：US13933076

    申请日：2013-07-01

    Applicant: QUALCOMM Incorporated

    Inventor： Emilija M. SIMIC ,  Dominic Gerard FARMER ,  Borislav RISTIC ,  Ashok BHATIA

    IPC: G01S19/45

    CPC classification number: G01S19/45 ,  H03J1/0008 ,  H03J7/02 ,  H03L7/00 ,  H04B1/26 ,  H04B7/12 ,  H04B7/216

    Abstract: A method and device for managing a reference oscillator within a wireless device is presented. The method includes selecting reference oscillator parameters associated with the lowest reference oscillator error, where the selection is based upon reference oscillator parameters derived using different technologies within a wireless device, acquiring a satellite based upon the selected reference parameters, determining the quality of the satellite-based position fix, and updating the reference oscillator parameters based upon the quality of the satellite-based position fix. The wireless device includes a wireless communications system, a satellite positioning system (SPS) receiver, a reference oscillator connected to the wireless communications system and SPS receiver, and a mobile controller connected to the reference oscillator, SPS, and wireless communications system, and a memory connected to the mobile controller, where the memory stores a reference oscillator parameter table and instructions causing the mobile controller to execute the aforementioned method.

    Abstract translation: 提出了一种在无线设备内管理参考振荡器的方法和设备。 该方法包括选择与最低参考振荡器误差相关联的参考振荡器参数，其中所述选择基于在无线设备内使用不同技术导出的参考振荡器参数，基于所选择的参考参数获取卫星，确定卫星 - 并且基于基于卫星的定位的质量来更新参考振荡器参数。 无线设备包括无线通信系统，卫星定位系统（SPS）接收机，连接到无线通信系统的参考振荡器和SPS接收机，以及连接到参考振荡器SPS和无线通信系统的移动控制器，以及 存储器连接到移动控制器，其中存储器存储参考振荡器参数表和使得移动控制器执行上述方法的指令。

    TIMING CIRCUIT CALIBRATION
    4.
    发明申请
    TIMING CIRCUIT CALIBRATION 审中-公开

    公开(公告)号：US20200174137A1

    公开(公告)日：2020-06-04

    申请号：US16786360

    申请日：2020-02-10

    Applicant: QUALCOMM Incorporated

    Inventor： Jie WU ,  Dominic Gerard FARMER ,  Lalitaprasad DAITA ,  Emilija SIMIC

    IPC: G01S19/23 ,  G01S19/34 ,  G01S19/39

    Abstract: Disclosed are devices, systems and techniques for propagating a system time maintained at a mobile device in a lower power mode using a sleep counter advanced by an XO crystal oscillator. In one particular implementation, a mobile device obtains initial and subsequent satellite positioning system fixes while in a higher power mode. Between the initial and subsequent position fixes, the mobile device may transition to a lower power mode during which measurements of a temperature of the XO crystal oscillator may be obtained.

    CROWDSOURCING BASED ON BASE STATION ALMANAC QUALITY
    6.
    发明申请
    CROWDSOURCING BASED ON BASE STATION ALMANAC QUALITY 审中-公开
    基于基站ALMANAC质量的测量

    公开(公告)号：US20150319732A1

    公开(公告)日：2015-11-05

    申请号：US14801585

    申请日：2015-07-16

    Applicant: QUALCOMM Incorporated

    Inventor： Lois A. TEED-GILLEN ,  Weihua GAO ,  Kirk Allan BURROUGHS ,  Dominic Gerard FARMER

    IPC: H04W64/00 ,  H04W28/02 ,  G01S5/02

    CPC classification number: H04W64/003 ,  G01S5/00 ,  G01S5/0027 ,  G01S5/0236 ,  G01S5/0242 ,  G01S19/13 ,  H04W28/0226 ,  H04W64/00 ,  H04W84/04 ,  H04W88/02 ,  H04W88/08

    Abstract: Systems, apparatus and methods for a mobile device and a base station almanac server to throttle crowdsourcing information are presented. The crowdsourcing information is used to improve a location of a base station in a base station almanac. A portion of the base station almanac is provided to a mobile device. For example, the mobile device may identify its current cell and request the base station almanac. The mobile device records crowdsourcing information to identify, for each particular base station of at least one base station, a cellular identifier for the particular base station, optional ranging information between the particular base station and the mobile device, and an independent position of the mobile device. The independent position of the mobile device may be formed from global navigation satellite system (GNSS) or station signals independent of the at least one base station.

    Abstract translation: 介绍了移动设备和基站历书服务器的系统，设备和方法，以节省众包信息。 众包信息用于改进基站历书中基站的位置。 基站历书的一部分被提供给移动设备。 例如，移动设备可以识别其当前小区并请求基站历书。 移动设备记录众包信息，以针对至少一个基站的每个特定基站识别特定基站的蜂窝标识符，特定基站和移动设备之间的可选测距信息，以及移动设备的独立位置 设备。 移动设备的独立位置可以由独立于至少一个基站的全球导航卫星系统（GNSS）或台站信号形成。

    CRYSTAL OSCILLATOR CALIBRATION
    7.
    发明申请
    CRYSTAL OSCILLATOR CALIBRATION 审中-公开
    水晶振荡器校准

    公开(公告)号：US20140004887A1

    公开(公告)日：2014-01-02

    申请号：US13774342

    申请日：2013-02-22

    Applicant: QUALCOMM INCORPORATED

    Inventor： Dominic Gerard FARMER ,  Vishal AGARWAL ,  Emilija Milorad SIMIC ,  Daniel Fred FILIPOVIC ,  Sasidhar MOWA

    IPC: H03L1/02 ,  G01S19/23

    CPC classification number: H04W56/00 ,  G01S19/235 ,  H03L1/022

    Abstract: Systems and methods for temperature-calibration of an uncompensated XO in a mobile device during mobile device operation. The XO is temperature-calibrated based on assistance from wireless signals, such as from satellite source, and optionally from terrestrial sources such as WWAN, CDMA, etc. Based on one or more received wireless signals received at a receiver, corresponding frequency estimates of the XO are obtained and correlated with corresponding operating temperatures in a processor. Based on one or more samples of frequency estimates and associated temperatures, the XO is temperature-calibrated in the processor wherein a frequency-temperature (FT) model is formulated for the XO. The frequency of the temperature-calibrated XO can be determined from the FT model at any given temperature.

    Abstract translation: 用于移动设备操作期间移动设备中未补偿的XO的温度校准的系统和方法。 基于来自无线信号（例如来自卫星源）和可选地从诸如WWAN，CDMA等地面源的无线信号进行温度校准。基于在接收机处接收到的一个或多个接收到的无线信号，相应的频率估计 获得XO并与处理器中的对应操作温度相关联。 基于频率估计和相关温度的一个或多个样本，XO在处理器中被温度校准，其中为XO制定了频率 - 温度（FT）模型。 温度校准XO的频率可以在任何给定温度下从FT模型确定。

    BASE STATION LOCATION DETERMINATION
    9.
    发明申请
    BASE STATION LOCATION DETERMINATION 审中-公开

    公开(公告)号：US20170280413A1

    公开(公告)日：2017-09-28

    申请号：US15080058

    申请日：2016-03-24

    Applicant: QUALCOMM Incorporated

    Inventor： Gengsheng ZHANG ,  Weihua GAO ,  Dominic Gerard FARMER

    IPC: H04W64/00 ,  G01S5/02 ,  H04W4/02

    CPC classification number: H04W64/003 ,  G01S5/021 ,  G01S5/0236 ,  G01S5/0242 ,  H04W4/02 ,  H04W4/023

    Abstract: A method of determining a location of a base station includes: receiving, at a mobile device from a location server, a base station identifier (BSID) of the base station and two or more candidate locations of the base station; receiving a signal, at the mobile device from the base station identified by the BSID; and selecting, at the mobile device, a particular candidate location from the two or more candidate locations based on a characteristic determined from the signal. A method of identifying an actual location of a base station includes: transmitting, from a location server to a disambiguating mobile device, a base station identifier (BSID) of the base station and two or more candidate locations of the base station; and receiving, at the location server from the disambiguating mobile device, an indication of the actual location of the base station from among the two or more candidate locations.

    ARM SWING COMPENSATION TECHNIQUES
    10.
    发明申请
    ARM SWING COMPENSATION TECHNIQUES 审中-公开
    ARM SWING补偿技术

    公开(公告)号：US20160274139A1

    公开(公告)日：2016-09-22

    申请号：US14842349

    申请日：2015-09-01

    Applicant: QUALCOMM Incorporated

    Inventor： Jie WU ,  William James MORRISON ,  Dominic Gerard FARMER ,  Benjamin WERNER ,  Joseph CZOMPO

    IPC: G01P3/00

    CPC classification number: G01P3/50 ,  G01S19/19 ,  G01S19/34 ,  G01S19/52

    Abstract: Techniques are provided which may be implemented using various methods and/or apparatuses in a mobile GNSS device to compensate for arm swing. An example of an method for compensating for arm swing according to the disclosure includes determining an arm swing signal, such that the arm swing signal is approximately sinusoidal with a period of approximately T seconds, determining a position signal measurement period, receiving a plurality of positioning signals at intervals corresponding to the position signal measurement period, and determining current position information based on the plurality of positioning signals.

    Abstract translation: 提供了技术，其可以使用移动GNSS设备中的各种方法和/或设备来实现，以补偿臂的摆动。 根据本公开的用于补偿臂摆动的方法的示例包括确定臂摆动信号，使得臂摆动信号大约为正弦曲线，周期约为T秒，确定位置信号测量周期，接收多个定位 信号，并且基于多个定位信号确定当前位置信息。

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