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    • 1. 发明申请
    • CRYSTAL OSCILLATOR CALIBRATION
    • 水晶振荡器校准
    • WO2014004868A2
    • 2014-01-03
    • PCT/US2013/048249
    • 2013-06-27
    • QUALCOMM INCORPORATED
    • FARMER, Dominic GerardAGARWAL, VishalSIMIC, Emilija MiloradFILIPOVIC, Daniel FredMOVVA, Sasidhar
    • G01S19/23
    • H04W56/00G01S19/235H03L1/022
    • 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.
    • 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。
    • 5. 发明公开
    • USING CLIENT-SPECIFIC RGS TO IMPROVE PERFORMANCE ON MULTI-SIM AND MULTI-RAT DEVICES
    • CUSTOM RGS的提高性能的多SIM卡和多RAT设备使用
    • EP3146761A1
    • 2017-03-29
    • EP15735771.6
    • 2015-06-12
    • Qualcomm Incorporated
    • MOVVA, SasidharNABAR, Mihir PravinHSU, Chih-PingBANDARU, SridharGURUMOORTHY, ShriramNGAI, Francis Ming-MengBARRETT, ChristopherBATCHU, Bhaskara Viswanadham
    • H04W36/24H04W8/00H04W36/30
    • Various embodiments provide methods implemented in a mobile communication device (e.g., a multi-RAT communication device) for maintaining at least one separate RGS value for each of a plurality of RATs operating on the mobile communication device. Specifically, a device processor on the mobile communication device (e.g., a crystal oscillator manager) may maintain a separate, up-to-date RGS value for each of the plurality of RATs and may associate each of the plurality of RATs with their respective RGS values. By keeping track of the plurality of RATs' respective RGS values, the device processor may ensure that an appropriate RGS value is used to facilitate each RAT's individual operations, such as acquisition/re-acquisition operations, sleep scheduling calculations, and handover/inter-RAT measurement operations. As a result, various embodiments may improve the performance of each RAT and the overall performance of the mobile communication device.
    • 各种实施例提供一种在移动通信设备(E. G.,多RAT通信装置),用于保持每个所述移动通信设备上操作的RAT的多个至少一个单独的RGS值实现的方法。 具体地,移动通信设备上的设备处理器(例如,一个晶体振荡器管理器)可以维护每个RAT中的多个单独的,最多最新RGS值,并且可以各自的RAT的多个关联与他们的respectivement RGS 值。 通过保持大鼠respectivement RGS值的多个轨道,所述装置处理器可确保做了适当的RGS值被用来促进每个RAT的个别操作,:如采集/重新获取操作,睡眠调度的计算,和移交/间 RAT的测量工作。 其结果是,各实施例可提高每个RAT的性能和所述移动通信装置的整体性能。