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公开(公告)号：US20140004800A1
公开(公告)日：2014-01-02
申请号：US13784046
申请日：2013-03-04
Applicant: QUALCOMM INCORPORATED
Inventor： Jie WU , Daniel Fred FILIPOVIC , Emilija Milorad SIMIC , Vishal Agarwal
IPC: H04W56/00
CPC classification number: H04W56/00 , G01S19/235 , H03L1/022
Abstract: 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.
Abstract translation: 用于移动设备中晶体振荡器（XO）的温度校准的系统和方法。 确定XO的温度校准状态，并检测与XO的温度校准相关的触发条件。 如果XO的温度校准状态未被完全温度校准，或者如果XO尚未被温度校准，则基于条件由XO管理器启动温度校准会话，其中接收器被配置为接收 基于接收到的信号，在后台模式下执行XO的信号和温度校准。 基于条件的触发确保在移动设备上启动任何基于位置或全球导航卫星系统（GNSS）的应用程序之前对XO进行温度校准。 触发条件可以包括首先使用或上电，充电，室外环境的存在，工作温度的变化，预先指定的时间和/或与移动设备有关的用户输入。
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公开(公告)号：US20210014802A1
公开(公告)日：2021-01-14
申请号：US16938750
申请日：2020-07-24
Applicant: QUALCOMM Incorporated
Inventor： Jie WU , Daniel Fred FILIPOVIC , Emilija Milorad SIMIC , Vishal AGARWAL
Abstract: 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.
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公开(公告)号：US20140028403A1
公开(公告)日：2014-01-30
申请号：US13829603
申请日：2013-03-14
Applicant: QUALCOMM INCORPORATED
Inventor： Daniel Fred FILIPOVIC , Sasidhar MOVVA , Vishal AGARWAL , Dominic Gerard FARMER , Sridhar BANDARU
IPC: H03L7/00
Abstract: Methods, apparatuses, systems and computer-readable media for addressing the aging of oscillation (XO) crystals are presented. Some embodiments may determine a change of age of the XO crystal since last prior use of the XO crystal. Embodiments may then determine that at least one calibration parameter is not suitable for use in at least one calibration technique of the XO crystal, based on the change of age of the XO crystal. Embodiments may then determine at least one fresh calibration parameter configured to update the at least one calibration parameter for suitable use in the at least one calibration technique of the XO crystal.
Abstract translation: 提出了用于解决振荡（XO）晶体老化的方法，装置，系统和计算机可读介质。 一些实施方案可以确定自上次使用XO晶体以来XO晶体的年龄变化。 然后，实施例可以基于XO晶体的年龄变化来确定至少一个校准参数不适用于XO晶体的至少一个校准技术。 实施例然后可以确定至少一个新的校准参数，其被配置为更新所述至少一个校准参数，以便在XO晶体的至少一个校准技术中适合使用。
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公开(公告)号：US20190261293A1
公开(公告)日：2019-08-22
申请号：US16402203
申请日：2019-05-02
Applicant: QUALCOMM Incorporated
Inventor： Jie WU , Daniel Fred FILIPOVIC , Emilija Milorad SIMIC , Vishal AGARWAL
Abstract: 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.
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公开(公告)号：US20170070246A1
公开(公告)日：2017-03-09
申请号：US14848569
申请日：2015-09-09
Applicant: QUALCOMM Incorporated
Inventor： Dineshbabu NATESAN , Daniel Fred FILIPOVIC , Ning HE , Yi-Chyun CHIOU , Tarandeep VIRK
CPC classification number: H04B1/0458 , H01Q1/245 , H01Q3/24 , H01Q21/28 , H04B1/40
Abstract: A systems, methods and apparatus including a plurality of antennas are provided. The antenna system includes a first antenna, a second antenna, and a measurement device. The measurement device is configured to measure at least a first complex value indicative of an impedance matching of the first antenna and a second complex value indicative of an impedance matching of the second antenna. The antenna system includes an antenna selection controller configured to select one of the first antenna and the second antenna. The antenna selection controller making the selection based on the measurement of the first complex value of the first antenna and the measurement of the second complex value of the second antenna.
Abstract translation: 提供了包括多个天线的系统，方法和装置。 天线系统包括第一天线，第二天线和测量装置。 测量装置被配置为测量表示第一天线的阻抗匹配的第一复数值和指示第二天线的阻抗匹配的第二复数值。 天线系统包括配置为选择第一天线和第二天线之一的天线选择控制器。 天线选择控制器基于第一天线的第一复数值的测量和第二天线的第二复数值的测量来进行选择。
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Patent Agency Ranking
公开(公告)号：US20140292403A1
公开(公告)日：2014-10-02
申请号：US14154022
申请日：2014-01-13
Applicant: QUALCOMM Incorporated
Inventor： Qijia LIU , Jifeng GENG , Daniel Fred FILIPOVIC , Li GAO
IPC: H03F1/32
CPC classification number: H03F1/3241 , H03F1/30 , H03F1/3247 , H03F3/195 , H03F3/245 , H03F2200/111 , H03F2200/336 , H03F2200/447 , H03F2201/3233 , H04L27/368
Abstract: Exemplary embodiments are related to power amplifier power level compensation in a pre-distortion system. A method may include applying digital pre-distortion (DPD) of a power amplifier at a frequency channel, a fixed input power value, and a fixed temperature. The method may also include determining an optimal input power value for the power amplifier in response to a change in at least one of frequency and temperature.
Abstract translation: 示例性实施例涉及预失真系统中的功率放大器功率电平补偿。 方法可以包括在频率信道，固定输入功率值和固定温度下应用功率放大器的数字预失真（DPD）。 该方法还可以包括响应于频率和温度中的至少一个的变化来确定功率放大器的最佳输入功率值。
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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
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。
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公开(公告)号：US20150194936A1
公开(公告)日：2015-07-09
申请号：US14151757
申请日：2014-01-09
Applicant: QUALCOMM Incorporated
Inventor： Hakan INANOGLU , Daniel Fred FILIPOVIC , Jifeng GENG , Leon T. METREAUD
CPC classification number: H03F1/0222 , H03F1/3247 , H03F1/3294 , H03F3/21 , H03F3/245 , H03F2200/102 , H03F2200/228 , H03F2200/336 , H03F2200/504 , H03F2201/3215 , H03F2201/3227 , H03F2201/3233
Abstract: Exemplary embodiments are related to a wireless transmitter device. A device may include a power amplifier configured to receive a supply voltage and an input signal. The device may further include switch coupled to the supply voltage and the power amplifier via an inductor and configured to couple the inductor to one of a ground voltage and the supply voltage. The device may also include a prediction engine configured to receive the input signal and convey a signal to the switch to couple the inductor to the ground voltage upon detection of an overshoot event.
Abstract translation: 示例性实施例涉及无线发射机设备。 设备可以包括被配置为接收电源电压和输入信号的功率放大器。 该器件还可以包括经由电感器耦合到电源电压和功率放大器的开关，并被配置为将电感器耦合到接地电压和电源电压之一。 该装置还可以包括预测引擎，其被配置为接收输入信号并且将信号传送到开关以在检测到过冲事件时将电感器耦合到接地电压。
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公开(公告)号：US20130308562A1
公开(公告)日：2013-11-21
申请号：US13837564
申请日：2013-03-15
Applicant: QUALCOMM INCORPORATED
Inventor： Sharif A. MATIN , Valibabu SALADI , Ning HE , Viswanath SANKARAN , Hongbo YAN , Daniel Fred FILIPOVIC , Ramesh CHIRALA , Gurdeep SINGH , Jun HU , Gregory Robert LIE , Troy R. CURTISS , Rashid Ahmed Akbar ATTAR
IPC: H04W72/08
CPC classification number: H01Q3/24 , H04B1/44 , H04B7/0404 , H04B7/0602 , H04B7/0608 , H04B7/0802 , H04B7/0814 , H04W24/02 , H04W36/14 , H04W36/30 , H04W72/085 , H04W76/18 , H04W88/06
Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with improving antenna selection for a UE as part of an access procedure. In an example, a UE with two or more antennas is equipped to obtain receive chain measurements for the two or more antennas associated with the UE when an access procedure is initiated, select an antenna, of the two or more antennas, for transmission based on receive chain measurements for use during at least a portion of the access procedure, and perform the access procedure using the selected antenna. In another example, the UE is equipped to determine that an Access procedure is to be initiated, select an antenna from the two or more antennas based on a selection algorithm, and perform the Access procedure based using the selected antenna. Other aspects, embodiments, and features are also claimed and described.
Abstract translation: 提供一种用于无线通信的方法，装置和计算机程序产品，用于改进作为访问过程的一部分的UE的天线选择。 在一个示例中，具有两个或更多个天线的UE被配备用于当接入过程开始时选择两个或更多个天线的天线，以获得基于与所述UE相关联的两个或更多天线的接收链测量，以用于基于 接收在至少一部分访问过程中使用的链测量，并且使用所选择的天线执行访问过程。 在另一示例中，UE被配备为基于选择算法来确定接入过程将被启动，从两个或更多天线中选择一个天线，并且使用所选择的天线执行接入过程。 还要求和描述其它方面，实施例和特征。
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公开(公告)号：US20130308476A1
公开(公告)日：2013-11-21
申请号：US13835903
申请日：2013-03-15
Applicant: QUALCOMM INCORPORATED
Inventor： Ning HE , Hongbo YAN , Daniel Fred FILIPOVIC
IPC: H04B7/04
CPC classification number: H01Q3/24 , H04B1/44 , H04B7/0404 , H04B7/0602 , H04B7/0608 , H04B7/0802 , H04B7/0814 , H04W24/02 , H04W36/14 , H04W36/30 , H04W72/085 , H04W76/18 , H04W88/06
Abstract: This disclosure provides systems, methods, and apparatus for antenna switching for simultaneous communication. In one embodiment, a wireless communication apparatus is provided. The wireless communication apparatus includes a plurality of antennas including a first antenna and a second antenna. The wireless communication apparatus further includes a plurality of transmit circuits including a first transmit circuit. The wireless communication apparatus further includes a controller configured to selectively switch the first transmit circuit from transmitting wireless communications via the first antenna to transmit wireless communications via the second antenna based on one or more uplink performance characteristics of at least one of the first antenna and the second antenna. Other aspects, embodiments, and features are also claimed and described.
Abstract translation: 本公开提供用于同时通信的天线切换的系统，方法和装置。 在一个实施例中，提供了一种无线通信装置。 无线通信装置包括包括第一天线和第二天线的多个天线。 无线通信装置还包括包括第一发送电路的多个发送电路。 所述无线通信装置还包括控制器，所述控制器被配置为基于所述第一天线和所述第二天线中的至少一个的一个或多个上行链路性能特性，经由所述第一天线选择性地切换所述第一发射电路以发射无线通信， 第二个天线。 还要求和描述其它方面，实施例和特征。
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