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    METHODS AND SYSTEMS FOR MOBILE DEVICE CLOCK MANAGEMENT
    4.
    发明公开
    METHODS AND SYSTEMS FOR MOBILE DEVICE CLOCK MANAGEMENT 审中-公开
    用于移动设备时钟管理的方法和系统

    公开(公告)号：EP3193546A1

    公开(公告)日：2017-07-19

    申请号：EP17155504.8

    申请日：2014-11-03

    申请人： QUALCOMM Incorporated

    发明人： FARMER, Dominic Gerard ,  WU, Jie ,  MORRISON, William James ,  LIN, Tong ,  RAO, Krishnaranjan S.

    IPC分类号： H04W56/00

    CPC分类号： G01S19/256 ,  G01P15/00 ,  G01S19/235 ,  H04W56/0035 ,  H04W56/005 ,  H04W56/0055 ,  H04W56/0065

    摘要： Disclosed are methods, systems and/or devices to calibrate a network time by acquisition of satellite positioning system (SPS) signals and different instances of time, and time-tagging SPS times according to the network time. In particular, the network time may be calibrated based, at least in part, on a first difference between first and second SPS times obtained at two SPS position fixes and a second difference between corresponding first and second time stamps.

    摘要翻译： 公开了通过获取卫星定位系统（SPS）信号和不同的时间实例来校准网络时间以及根据网络时间对SPS时间进行时间标记的方法，系统和/或设备。 具体而言，网络时间可以至少部分地基于在两个SPS位置定位处获得的第一和第二SPS时间之间的第一差值以及相应的第一和第二时间戳之间的第二差值来校准。

    DETECTION AND FILTERING OF AN UNDESIRED NARROWBAND SIGNAL CONTRIBUTION IN A WIRELESS SIGNAL RECEIVER
    5.
    发明公开
    DETECTION AND FILTERING OF AN UNDESIRED NARROWBAND SIGNAL CONTRIBUTION IN A WIRELESS SIGNAL RECEIVER 审中-公开
    检测和过滤不必要的窄带信号作用到无线信号接收器

    公开(公告)号：EP2812726A1

    公开(公告)日：2014-12-17

    申请号：EP13704310.5

    申请日：2013-01-29

    申请人： Qualcomm Incorporated

    发明人： WU, Jie ,  SIMIC, Emilija ,  PALS, Timothy ,  HOANG, Duong

    IPC分类号： G01S19/21 ,  H04B1/10

    CPC分类号： G01S19/21 ,  H04B1/1036

    摘要： Techniques are provided which may be implemented using various methods and/or apparatuses in a device comprising a receiver to scan a spectral band of a received signal comprising a desired signal contribution to determine whether signal data associated with at least a sub-band of the spectral band further comprises at least one undesired signal contribution. In response to determining that the signal data comprises at least one undesired signal contribution, the mobile station may initiate at least one notch filter to affect the undesired signal contribution in subsequent signal data associated with the received signal.

    RECOVERY FROM POSITION AND TIME OUTLIERS IN POSITIONING
    6.
    发明公开
    RECOVERY FROM POSITION AND TIME OUTLIERS IN POSITIONING 审中-公开
    威尼斯·罗恩位置 - 在ZEITAUSREISSERN BEI DER POSITIONIERUNG

    公开(公告)号：EP2652522A1

    公开(公告)日：2013-10-23

    申请号：EP11811598.9

    申请日：2011-12-15

    申请人： Qualcomm Incorporated

    发明人： RILEY, Wyatt, Thomas ,  DAITA, Lalitaprasad, V. ,  MORRISON, William, James ,  FARMER, Dominic, Gerard ,  WU, Jie

    IPC分类号： G01S19/20 ,  G01S19/25

    CPC分类号： G01S19/252 ,  G01S19/20 ,  G01S19/25 ,  G01S19/45

    摘要： A mobile device may use one or more outlier detectors to detect likelihoods that an outlier condition exists for a satellite positioning system (SPS) position fix. In some implementations, an outlier detector may compare a computed position fix to an element of assistance data to generate an outlier likelihood. A decision to perform a recovery operation may be made based, at least in part, on a generated outlier likelihood. In some implementations, a computed reliability of the position fix may also be considered in making a recovery decision.

    摘要翻译： 移动设备可以使用一个或多个异常值检测器来检测对于卫星定位系统（SPS）位置定位存在异常值状态的可能性。 在一些实施方式中，一种方法可以包括检查SPS接收机的位置锁定以与用于产生位置锁定的辅助数据一致。 该方法还可以包括至少部分地基于位置锁定检查的结果来确定是否使用少于所有辅助数据来生成新的位置锁定。

    TIME-SETTING IN SATELLITE POSITIONING SYSTEM RECEIVERS
    7.
    发明公开
    TIME-SETTING IN SATELLITE POSITIONING SYSTEM RECEIVERS 审中-公开
    时间设置接收端的卫星定位系统

    公开(公告)号：EP2603815A2

    公开(公告)日：2013-06-19

    申请号：EP11743751.7

    申请日：2011-08-05

    申请人： Qualcomm Incorporated

    发明人： HOANG, Duong A. ,  ROWITCH, Douglas, Neal ,  WU, Jie ,  SIMIC, Emilija M. ,  FARMER, Dominic Gerard

    IPC分类号： G01S19/24

    CPC分类号： H04B1/70758 ,  G01S19/243 ,  G01S19/246 ,  H04B2201/70715

    摘要： Techniques are provided which may be implemented using various methods and/or apparatuses in a receiver and/or other like device to determine an SPS time using SPS signals based on a correlation process. A verification process may be performed, for example, that verifies a maximum peak in comparison with other peak information resulting from the correlation process, for example, by considering a ratio of a maximum peak to a next maximum peak. A time-setting algorithm may be selected, for example, based, at least in part, on a time uncertainty and/or on a type of demodulation performed on the SPS signal. The time-setting algorithm may operatively control one or both of the correlation and/verification processes in a desired manner given the time uncertainty and/or type/mode of demodulation performed.

    BACKGROUND CRYSTAL OSCILLATOR CALIBRATION
    10.
    发明公开
    BACKGROUND CRYSTAL OSCILLATOR CALIBRATION 审中-公开

    公开(公告)号：EP3901665A1

    公开(公告)日：2021-10-27

    申请号：EP21173640.0

    申请日：2013-06-27

    申请人： QUALCOMM Incorporated

    发明人： WU, Jie ,  FILIPOVIC, Daniel Fred ,  SIMIC, Emilija Milorad ,  AGARWAL, Vishal

    IPC分类号： G01S19/23

    摘要： System and method for temperature-calibration of a crystal oscillator (XO) in a mobile device. A temperature-calibration status of the XO is determined and a trigger condition related to temperature-calibration of the XO is detected. If the temperature-calibration status of the XO is not fully temperature-calibrated or if the XO has not been previously temperature-calibrated, a temperature-calibration session is initiated by an XO manager based on the condition, wherein a receiver is configured to receive signals and temperature-calibration of the XO is performed in a background mode based on the received signals. The condition based triggering ensures that the XO is temperature-calibrated prior to launch of any position based or global navigation satellite systems (GNSS) based applications on the mobile device. The trigger condition can include first use or power-on, charging, presence in an outdoor environment, variation in operating temperature, pre-specified time, and/or user input pertaining to the mobile device.