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公开(公告)号：US20180092048A1
公开(公告)日：2018-03-29
申请号：US15275305
申请日：2016-09-23
Applicant: QUALCOMM Incorporated
Inventor： Hao-Jen Cheng , Kapil Rai , Chih-Yuan Chu , Wen-Chang Yeh
IPC: H04W52/34 , H04B17/318 , H04W24/02
Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may transmit a first calibration packet at a first power level. The wireless device may determine a power measurement corresponding to the first calibration packet based at least in part on feedback associated with a transmit power output of the first calibration packet. The wireless device may compare the power measurement corresponding to the first calibration packet to a target power level associated with the first power level. Additionally, the wireless device may adjust one or more gain parameters associated with the first power level based at least in part on the comparing.
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公开(公告)号：US20250070806A1
公开(公告)日：2025-02-27
申请号：US18454740
申请日：2023-08-23
Applicant: QUALCOMM Incorporated
Inventor： Yimu Tu , Feng-Yu Lee , Hao-Jen Cheng
IPC: H04B1/04
Abstract: This disclosure provides methods, components, devices and systems for signal generation. Some aspects more specifically relate to frequency-selective digital predistortion signal generation. In some examples, the method alters an input signal to produce a frequency-selected linear output signal of a power amplifier. For frequency-selective pre-distortion signal generation, a digital pre-distortion circuit suppresses the non-linear distortion at a specific band using Volterra kernels of a Volterra series model and a shiftable finite impulse response (FIR). The shiftable FIR can filter a particular portion of the signal's frequency, and the Volterra kernels can capture the non-linear memory effects of the input signals and output signals of the power amplifier. Upon refinement of the Volterra kernel coefficients, the Volterra series model can produce a compensation signal. The shiftable FIR can filter the compensation signal to produce a digital pre-distortion signal to input into the power amplifier for transmission.
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公开(公告)号：US09209893B2
公开(公告)日：2015-12-08
申请号：US13802613
申请日：2013-03-13
Applicant: QUALCOMM Incorporated
Inventor： Gaspar Lee , Hao-Jen Cheng
CPC classification number: H04B7/2125 , G01S19/243 , G01S19/27 , G01S19/33
Abstract: A method of providing frame synchronization for GPS signals can include performing coherent bit extraction on the GPS bits and then performing coherent frame boundary detection based on the bits of the coherent bit extraction. Concurrently, differential bit extraction on the GPS bits and differential frame boundary detection based on bits of the differential bit extraction can be performed. Whichever of the coherent frame boundary detection and the differential frame boundary detection first finds a frame boundary, then that frame boundary is used for the frame synchronization. A method of providing string synchronization for GLONASS signals includes performing coherent and differential bit extraction on the GLONASS bits.
Abstract translation: 提供用于GPS信号的帧同步的方法可以包括对GPS位执行相干比特提取，然后基于相干比特提取的比特执行相干帧边界检测。 同时，可以执行基于差分比特提取的比特的GPS比特差分比特提取和差分帧边界检测。 无论哪个相干帧边界检测和差分帧边界检测首先找到帧边界，则该帧边界用于帧同步。 为GLONASS信号提供串同步的方法包括在GLONASS位上执行相干和差分位提取。
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Patent Agency Ranking
4.发明授权公开(公告)号：US09065686B2
公开(公告)日：2015-06-23
申请号：US13683692
申请日：2012-11-21
Applicant: QUALCOMM Incorporated
Inventor： Qinfang Sun , Chiao-Cheng Huang , Hao-Jen Cheng
CPC classification number: H04L27/00 , H04B1/1027
Abstract: A method and device for processing spur components associated with a received wireless signal are disclosed. In one embodiment, the method includes first selecting a sub-band of a spectral band of the received signal. The selected sub-band is scanned, and a detection routine is executed to detect a spur within the scanned sub-band having a peak magnitude above a predetermined threshold. The spur frequency is determined, and the spur may be removed by a cancellation unit based on the determined frequency. The method also includes tracking the frequency of the spur to ensure continued suppression over time and under dynamic conditions.
Abstract translation: 公开了一种用于处理与接收的无线信号相关联的支线分量的方法和装置。 在一个实施例中，该方法包括首先选择接收信号的频谱带的子带。 扫描所选择的子带，并且执行检测程序以检测具有高于预定阈值的峰值幅度的扫描子带内的杂散。 确定杂散频率，并且基于所确定的频率，消除单元可以去除杂散。 该方法还包括跟踪支线的频率，以确保随时间和动态条件下的持续抑制。
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公开(公告)号：US12250587B2
公开(公告)日：2025-03-11
申请号：US18349808
申请日：2023-07-10
Applicant: QUALCOMM Incorporated
Inventor： Srikant Kuppa , Sandip Homchaudhuri , Yongchun Xiao , Hao-Jen Cheng
Abstract: Methods, systems, and devices for wireless communications are described. A station (STA) may receive a first signal including an indication of a set of frequency channels for a set of target wake time (TWT) sessions that recur according to a service interval. In some examples, the first signal may indicate a respective frequency channel of the set of frequency channels for each TWT session of the set of target wake time sessions. Each TWT session of the set of TWT sessions may have an associated service period that the STA may be in an awake state. The STA may switch, for the first TWT session, from the first frequency channel to the second frequency channel. In some examples, based on the switching, the STA may communicate a signal during a service period associated with the first TWT session over the second frequency channel.
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公开(公告)号：US20140355714A1
公开(公告)日：2014-12-04
申请号：US13909478
申请日：2013-06-04
Applicant: QUALCOMM Incorporated
Inventor： Hao-Jen Cheng , Chiao-Cheng Huang , Hao Zhou
CPC classification number: H04L27/368 , H03F1/3247
Abstract: A configurable pre-emphasis filter component may be configured based upon measured frequency response (e.g., filter effect) associated with at least one analog filter positioned between a digital predistortion component and a power amplification component of a transmission circuitry. The frequency response may be measured using a calibration signal sent via the transmission circuitry, a loopback circuit, and a reception circuitry. Calibration circuitry may be used with one or more loopback circuits to measure the frequency response of various analog components of the transmission circuitry. The calibration circuitry may also include logic to determine a configuration for the PEF component based upon the measured frequency response.
Abstract translation: 可以基于与位于传输电路的数字预失真部件和功率放大部件之间的至少一个模拟滤波器相关联的测量的频率响应（例如滤波器效应）来配置可配置的预加重滤波器部件。 可以使用经由传输电路，环回电路和接收电路发送的校准信号来测量频率响应。 校准电路可以与一个或多个环回电路一起使用，以测量传输电路的各种模拟部件的频率响应。 校准电路还可以包括基于所测量的频率响应确定PEF分量的配置的逻辑。
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公开(公告)号：US11758433B1
公开(公告)日：2023-09-12
申请号：US17740232
申请日：2022-05-09
Applicant: QUALCOMM Incorporated
Inventor： Srikant Kuppa , Sandip Homchaudhuri , Yongchun Xiao , Hao-Jen Cheng
CPC classification number: H04W28/0289 , H04B1/713
Abstract: Methods, systems, and devices for wireless communications are described. A station (STA) may receive a first signal including an indication of a set of frequency channels for a set of target wake time (TWT) sessions that recur according to a service interval. In some examples, the first signal may indicate a respective frequency channel of the set of frequency channels for each TWT session of the set of target wake time sessions. Each TWT session of the set of TWT sessions may have an associated service period that the STA may be in an awake state. The STA may switch, for the first TWT session, from the first frequency channel to the second frequency channel. In some examples, based on the switching, the STA may communicate a signal during a service period associated with the first TWT session over the second frequency channel.
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公开(公告)号：US20130195101A1
公开(公告)日：2013-08-01
申请号：US13802613
申请日：2013-03-13
Applicant: QUALCOMM Incorporated
Inventor： Gaspar Lee , Hao-Jen Cheng
IPC: H04B7/212
CPC classification number: H04B7/2125 , G01S19/243 , G01S19/27 , G01S19/33
Abstract: A method of providing frame synchronization for GPS signals can include performing coherent bit extraction on the GPS bits and then performing coherent frame boundary detection based on the bits of the coherent bit extraction. Concurrently, differential bit extraction on the GPS bits and differential frame boundary detection based on bits of the differential bit extraction can be performed. Whichever of the coherent frame boundary detection and the differential frame boundary detection first finds a frame boundary, then that frame boundary is used for the frame synchronization. A method of providing string synchronization for GLONASS signals includes performing coherent and differential bit extraction on the GLONASS bits.
Abstract translation: 提供用于GPS信号的帧同步的方法可以包括对GPS位执行相干比特提取，然后基于相干比特提取的比特执行相干帧边界检测。 同时，可以执行基于差分比特提取的比特的GPS比特差分比特提取和差分帧边界检测。 无论哪个相干帧边界检测和差分帧边界检测首先找到帧边界，则该帧边界被用于帧同步。 为GLONASS信号提供串同步的方法包括在GLONASS位上执行相干和差分位提取。
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