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    USE OF REFERENCE SIGNALS TO IMPROVE USER EQUIPMENT (UE) WARM-UP BEFORE TRANSITIONING FROM AN OFF DURATION OF THE UE TO AN ON DURATION OF THE UE WITH RESPECT TO A RADIO FREQUENCY SPECTRUM BAND
    23.
    发明申请
    USE OF REFERENCE SIGNALS TO IMPROVE USER EQUIPMENT (UE) WARM-UP BEFORE TRANSITIONING FROM AN OFF DURATION OF THE UE TO AN ON DURATION OF THE UE WITH RESPECT TO A RADIO FREQUENCY SPECTRUM BAND 审中-公开
    使用参考信号来改善用户设备（UE）在从UE的关闭持续时间转换到UE关于射频频谱带的持续时间之前的预热

    公开(公告)号：WO2018064369A1

    公开(公告)日：2018-04-05

    申请号：PCT/US2017/054079

    申请日：2017-09-28

    Applicant: QUALCOMM INCORPORATED

    Inventor： ANG, Peter Pui Lok ,  MUKKAVILLI, Krishna Kiran ,  CHALLA, Raghu ,  YANG, Yang ,  GOROKHOV, Alexei Yurievitch ,  JI, Tingfang ,  SORIAGA, Joseph Binamira ,  LEE, Heechoon

    IPC: H04W48/08 ,  H04L5/00

    Abstract: Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) includes identifying a transmission timing of a control reference signal transmitted over a radio frequency spectrum band during an OFF duration of the UE with respect to the radio frequency spectrum band, in which the identified transmission timing is relative to a transition from the OFF duration to an ON duration of the UE with respect to the radio frequency spectrum band; receiving the control reference signal at the identified transmission timing; and performing a warm-up procedure, before the ON duration, based at least in part on the identified transmission timing of the control reference signal. A method for wireless communication at a wireless network includes indicating, to the UE, the transmission timing of the control reference signal; and transmitting the control reference signal at the indicated transmission timing. The OFF duration and the ON duration are coordinated with a wireless network.

    Abstract translation: 描述了用于无线通信的技术。 一种用于在用户设备（UE）处进行无线通信的方法包括：在UE关于射频频谱带的关闭持续时间期间识别在射频频谱带上发射的控制参考信号的发射定时，其中所识别的发射 定时相对于UE关于无线电频谱带的从OFF持续时间到ON持续时间的转变; 在识别的传输定时接收控制参考信号; 以及至少部分地基于所识别的控制参考信号的传输定时，在开启持续时间之前执行预热过程。 一种用于无线网络的无线通信的方法包括：向UE指示控制参考信号的传输定时; 并在所指示的发送定时发送控制参考信号。 关闭持续时间和开启持续时间与无线网络协调。

    FREQUENCY ERROR DETECTION WITH PBCH FREQUENCY HYPOTHESIS
    24.
    发明申请
    FREQUENCY ERROR DETECTION WITH PBCH FREQUENCY HYPOTHESIS 审中-公开
    使用PBCH频率假设进行频率检测

    公开(公告)号：WO2016028417A1

    公开(公告)日：2016-02-25

    申请号：PCT/US2015/040626

    申请日：2015-07-15

    Applicant: QUALCOMM INCORPORATED

    Inventor： XU, Huilin ,  GOROKHOV, Alexei ,  MOTAMED, Mariam ,  CHALLA, Raghu ,  MACDONALD, Joshua ,  XIE, Kai ,  PADI, Vivek ,  MARTEEN, Alex ,  MA, Juchuan

    IPC: H04W56/00 ,  H04L27/00

    CPC classification number: H04W28/0289 ,  H04L27/00 ,  H04L27/2657 ,  H04L27/2695 ,  H04L2027/0034 ,  H04L2027/0065 ,  H04W56/0035 ,  H04W76/28

    Abstract: Aspects of frequency error detection with Physical Broadcast CHannel (PBCH) frequency hypothesis are described. For example, a method and apparatus are disclosed for frequency tracking in a user equipment (UE) may include detecting a change in frequency that exceeds a pull-in range of a frequency tracking loop (FTL) of the UE. The method and apparatus may also include identifying a tracking recovery frequency in response to the change in frequency being detected, wherein the tracking recover frequency is identified from a set of frequency hypotheses and based on decoding of the PBCH received by the UE. The method and apparatus may further include updating the FTL with the tracking recovery frequency.

    Abstract translation: 描述了使用物理广播信道（PBCH）频率假设进行频率误差检测的方面。 例如，用于用户设备（UE）中的频率跟踪的方法和装置可以包括检测超过UE的频率跟踪环路（FTL）的引入范围的频率变化。 所述方法和装置还可以包括响应于被检测的频率的变化来识别跟踪恢复频率，其中，从一组频率假设并且基于由UE接收的PBCH的解码来识别跟踪恢复频率。 该方法和装置还可以包括利用跟踪恢复频率更新FTL。

    GAIN CONTROL FOR COMMUNICATIONS DEVICE
    25.
    发明申请
    GAIN CONTROL FOR COMMUNICATIONS DEVICE 审中-公开
    通信设备增益控制

    公开(公告)号：WO2003084060A1

    公开(公告)日：2003-10-09

    申请号：PCT/US2003/009385

    申请日：2003-03-26

    Applicant: QUALCOMM INCORPORATED

    Inventor： BLACK, Peter J. ,  SINDHUSHAYANA, Nagabhushana ,  CHALLA, Raghu ,  SELTMANN, Kevin

    IPC: H03G3/20

    CPC classification number: H03G3/3036 ,  H03G3/3068

    Abstract: Systems and techniques for gain control include amplifying a signal with an amplifier having a gain represented by one of a plurality of gain curves depending on a value of a parameter, the signal being amplified at a first one of the parameter values, and controlling the gain of the amplified signal from a predetermined gain curve relating to the gain curve of the amplifier for a second one of the parameter values by adjusting a gain control signal corresponding to a point on the predetermined gain curve as a function of the first one of the parameter values, and applying the adjusted gain control signal to the amplifier. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.

    Abstract translation: 用于增益控制的系统和技术包括用具有根据参数值的多个增益曲线之一表示的增益的放大器放大信号，该信号在第一个参数值处被放大，并且控制增益 通过调整与预定增益曲线上的点相对应的增益控制信号作为参数中的第一个的函数，来从与放大器对于第二参数值的增益曲线相关的预定增益曲线的放大信号 值，并将调整后的增益控制信号应用于放大器。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。

    LOW FREQUENCY SLEEP CLOCK ERROR CORRECTION WITHIN A MOBILE STATION OPERATING IN A SLOTTED PAGING MODE
    26.
    发明申请
    LOW FREQUENCY SLEEP CLOCK ERROR CORRECTION WITHIN A MOBILE STATION OPERATING IN A SLOTTED PAGING MODE 审中-公开
    在滑动式寻呼模式下操作的移动台中的低频休眠时钟错误校正

    公开(公告)号：WO2003065747A1

    公开(公告)日：2003-08-07

    申请号：PCT/US2003/002896

    申请日：2003-01-31

    Applicant: QUALCOMM INCORPORATED

    Inventor： CHALLA, Raghu ,  ACHOUR, Baaziz ,  HUGHES, Robbin, D.

    IPC: H04Q7/32

    CPC classification number: H04B1/70756 ,  H04B2201/70709 ,  H04W52/0216 ,  H04W52/029 ,  H04W56/0035 ,  Y02D70/40

    Abstract: Various techniques for improving a wireless communication device are described. The techniques may include reducing power in a wireless communication device for a first sleep period and then increasing power in the wireless communication device for an intermediate wake period after the first sleep period to estimate an error of the sleep clock. The method may further include reducing power in the wireless communication device for a second sleep period after the intermediate wake period. The intermediate wake mode implemented during the intermediate period can be used to estimate the error of the sleep clock without performing one or more tasks associated with an awake mode, such as demodulation. The techniques may facilitate the effective use of low frequency low power clocks for sleep mode, even when relatively large slot cycles are defined within a slotted paging system.

    Abstract translation: 描述了用于改进无线通信设备的各种技术。 这些技术可以包括在第一睡眠周期内减少无线通信设备中的功率，然后在第一睡眠周期之后的中间唤醒周期增加无线通信设备中的功率，以估计睡眠时钟的误差。 该方法还可以包括在中间唤醒周期之后的第二睡眠周期内减少无线通信设备中的功率。 在中间周期期间实现的中间唤醒模式可用于估计休眠时钟的误差，而不执行与诸如解调之类的唤醒模式相关联的一个或多个任务。 即使在时隙寻呼系统中定义相对较大的时隙周期，这些技术可以有助于有效地使用低频低功率时钟用于睡眠模式。

    DIRECT CONVERSION RECEIVER ARCHITECTURE
    27.
    发明申请
    DIRECT CONVERSION RECEIVER ARCHITECTURE 审中-公开
    直接转换接收机架构

    公开(公告)号：WO2002067420A2

    公开(公告)日：2002-08-29

    申请号：PCT/US2002/004727

    申请日：2002-02-15

    Applicant: QUALCOMM INCORPORATED

    Inventor： LI, Tao ,  HOLENSTEIN, Christian ,  KANG, Injup ,  WALKER, Brett, C. ,  PETERZELL, Paul, E. ,  CHALLA, Raghu ,  SEVERSON, Matthew, L.

    IPC: H03G

    CPC classification number: H03G3/3078 ,  H03G3/3068 ,  H03G3/3089

    Abstract: A direct downconversion receiver architecture having a DC loop to remove DC offset from the signal components, a digital variable gain amplifier (DVGA) to provide a range of gains, an automatic gain control (AGC) loop to provide gain control for the DVGA and RF/analog circuitry, and a serial bus interface (SBI) unit to provide controls for the RF/analog circuitry via a serial bus. The DVGA may be advantageously designed and located as described herein. The operating mode of the VGA loop may be selected based on the operating mode of the DC loop, since these two loops interact with one another. The duration of time the DC loop is operated in an acquisition mode may be selected to be inversely proportional to the DC loop bandwidth in the acquisition mode. The controls for some or all of the RF/analog circuitry may be provided via the serial bus.

    Abstract translation: 具有用于去除信号分量的DC偏移的DC环路的直接下变频接收机架构，提供一系列增益的数字可变增益放大器（DVGA），用于为DVGA和RF提供增益控制的自动增益控制（AGC）回路 /模拟电路和串行总线接口（SBI）单元，通过串行总线为RF /模拟电路提供控制。 可以如本文所述有利地设计和定位DVGA。 可以基于DC循环的操作模式来选择VGA循环的操作模式，因为这两个循环彼此相互作用。 在采集模式中DC环路工作的持续时间可以被选择为与采集模式中的DC环路带宽成反比。 一些或全部RF /模拟电路的控制可以通过串行总线提供。

    CALIBRATING THE LOCAL OSCILLATION FREQUENCY OF A CDMA RECEIVER
    28.
    发明申请
    CALIBRATING THE LOCAL OSCILLATION FREQUENCY OF A CDMA RECEIVER 审中-公开

    公开(公告)号：WO2002060144A3

    公开(公告)日：2002-08-01

    申请号：PCT/US2002/000088

    申请日：2002-01-04

    Applicant: QUALCOMM INCORPORATED

    Inventor： SIH, Gilbert, C. ,  CHALLA, Raghu

    IPC: H04L27/00

    Abstract: A frequency error in the oscillation frequency of a local frequency generation loop causes a change in the baseband input signal frequency. The change in the baseband input signal frequency related to the frequency error in the local frequency generation loop can be detected as a phase rotation by the frequency error discriminator. By using the digital automatic frequency control loop, the frequency error introduced by the local frequency generation is determined with accuracy. The frequency error and corresponding control bits are entered into a calibration table. The calibration table may be use to adjust the local oscillation frequency for temperature changes, pilot frequency searching, and quick paging.

    EVALUATING RADIO FREQUENCY (RF) EXPOSURE IN REAL TIME
    29.
    发明公开
    EVALUATING RADIO FREQUENCY (RF) EXPOSURE IN REAL TIME 审中-实审

    公开(公告)号：EP4294092A3

    公开(公告)日：2024-03-13

    申请号：EP23207054.0

    申请日：2019-07-03

    Applicant: QUALCOMM Incorporated

    Inventor： NADAKUDUTI, Jagadish ,  LU, Lin ,  GUCKIAN, Paul ,  CAI, Mingming ,  HAN, Junsheng ,  FERNANDO, Udara ,  CHALLA, Raghu

    IPC: H04W52/36 ,  H04W52/38

    Abstract: In certain aspects, a method implemented in a wireless device includes determining a specific absorption rate (SAR) distribution for a first wireless communication technology, determining a power density (PD) distribution for a second wireless communication technology, and combining the SAR distribution and the PD distribution to generate a combined RF exposure distribution. The method also includes determining at least one first maximum allowable power level and at least one second maximum allowable power level for a future time slot based on the combined RF exposure distribution, setting at least one transmission power limit for a first transmitter in the future time slot based on the at least one first maximum allowable power level, and setting at least one transmission power limit for a second transmitter in the future time slot based on the at least one second maximum allowable power level.

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