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61. 发明申请

US20170063312A1 MIXER IMPAIRMENT CORRECTION BASED ON VOLTERRA SERIES 审中-公开
标题翻译：基于VOLTERRA系列的混合器补偿校正
公开(公告)号：US20170063312A1
公开(公告)日：2017-03-02
申请号：US15256718
申请日：2016-09-05
申请人： Intel IP Corporation
发明人： AVI SULIMARSKI , ITAY ALMOG , MICHAEL KERNER
IPC分类号： H03F1/32 , H03F3/21 , H03F3/19
CPC分类号： H03F1/3258 , H03F1/3282 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/336 , H03F2200/451 , H03F2201/3224 , H04B1/0475 , H04B2001/0425
摘要： Techniques for compensating for signal impairments introduced by a mixer are discussed. One example system employing such techniques can include mixer predistortion circuitry configured to receive signal in-phase (I) and signal quadrature (Q) components of a signal and to generate a mixer predistortion signal based at least in part on the signal I and Q components, wherein the mixer predistortion signal compensates for nonlinearities caused by a mixer that upconverts the signal. Optionally, imbalance correction circuitry to compensate for gain and phase imbalance and/or skew correction circuitry to compensate for gain and phase skew can also be included.
摘要翻译：讨论了用于补偿由混合器引入的信号损伤的技术。采用这种技术的一个示例系统可以包括配置成接收信号的信号同相（I）和信号正交（Q）分量的混合器预失真电路，并且至少部分地基于信号I和Q分量来产生混合器预失真信号，其中混频器预失真信号补偿由上变频信号的混频器引起的非线性。可选地，还可以包括用于补偿增益和相位不平衡和/或偏斜校正电路以补偿增益和相位偏移的不平衡校正电路。

62. 发明授权

US09584168B2 Distortion compensator and distortion compensation method 有权
标题翻译：失真补偿器和失真补偿方法
公开(公告)号：US09584168B2
公开(公告)日：2017-02-28
申请号：US15009041
申请日：2016-01-28
申请人： FUJITSU LIMITED
发明人： Tomoya Ota , Kazuo Nagatani
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , H03F1/3241 , H03F3/24 , H04B2001/0408 , H04B2001/0425
摘要： A distortion compensator that compensates for nonlinear distortion of an amplifier that amplifies power of a multicarrier signal includes a first compensation unit that performs first distortion compensation to collectively compensate for first nonlinear distortion that occurs in contact with a carrier frequency of the multicarrier signal, and second nonlinear distortion that occurs at a frequency at a predetermined distance from the carrier frequency, and a second compensation unit that performs second distortion compensation to compensate for only the first nonlinear distortion, of the first nonlinear distortion and the second nonlinear distortion.
摘要翻译：用于补偿放大多载波信号功率的放大器的非线性失真的失真补偿器包括执行第一失真补偿以共同补偿与多载波信号的载波频率接触发生的第一非线性失真的第一补偿单元，第二补偿单元在与载波频率预定距离处的频率处发生的非线性失真;以及第二补偿单元，其执行第二失真补偿以仅补偿第一非线性失真和第二非线性失真的第一非线性失真。

63. 发明授权

US09584165B2 High frequency amplifier and method of compensating for distortion 有权
标题翻译：高频放大器和补偿失真的方法
公开(公告)号：US09584165B2
公开(公告)日：2017-02-28
申请号：US14650266
申请日：2013-12-06
申请人： Samsung Electronics Co., Ltd.
发明人： Takashi Okazaki
IPC分类号： H04B1/04 , H03F1/32 , H03F1/02 , H03F3/19 , H03F3/21 , H03F3/24
CPC分类号： H04B1/0475 , H03F1/0205 , H03F1/3241 , H03F1/3247 , H03F3/19 , H03F3/21 , H03F3/245 , H03F2200/129 , H03F2200/451 , H04B2001/0425
摘要： Disclosed is a high frequency amplifier which can properly compensate for distortion generated in a power amplifier even when an observation band of a feedback signal is made narrow. The high frequency amplifier includes a data correction unit that corrects transmission data through a digital pre-distortion method, and the data correction unit includes an orthogonalizer that orthogonalizes and outputs respective order components of a polynomial model for the digital pre-distortion method, and a compensator that compensates for a memory effect of the power amplifier for an output of the orthogonalizer.
摘要翻译：公开了即使当反馈信号的观察频带变窄时，也可以适当地补偿功率放大器中产生的失真的高频放大器。高频放大器包括通过数字预失真方法校正发送数据的数据校正单元，并且数据校正单元包括正交化并输出用于数字预失真方法的多项式模型的相应次序分量的正交器，以及补偿器补偿功率放大器对正交器的输出的记忆效应。

64. 发明授权

US09584085B2 Amplifying system 有权
标题翻译：放大系统
公开(公告)号：US09584085B2
公开(公告)日：2017-02-28
申请号：US14554542
申请日：2014-11-26
申请人： RF Micro Devices, Inc.
发明人： Baker Scott , George Maxim , Dirk Robert Walter Leipold
IPC分类号： H03G3/30 , H03F3/68 , H03F3/19 , H03F1/32 , H03F1/52 , H03F1/02 , H04B1/04 , H03F1/22 , H03F1/56 , H03F3/45 , H03F3/193
CPC分类号： H03G3/3036 , H03F1/0211 , H03F1/0272 , H03F1/223 , H03F1/32 , H03F1/523 , H03F1/565 , H03F3/19 , H03F3/193 , H03F3/24 , H03F3/45179 , H03F3/45394 , H03F3/68 , H03F2200/324 , H03F2200/387 , H03F2200/451 , H03F2200/471 , H03F2201/3236 , H03G3/3042 , H04B1/0475 , H04B2001/0408 , H04B2001/0416 , H04B2001/0425
摘要： An amplifying system with increased linearity is disclosed. The amplifying system includes a first gain stage with a first gain characteristic, a second gain stage with a second gain characteristic, and bias circuitry configured to substantially maintain alignment of distortion inflection points between the first gain characteristic and the second gain characteristic during operation. The bias circuitry is configured to further maintain alignment of the distortion inflection points between the first gain characteristic and the second gain characteristic over design corners by providing substantially constant headroom between quiescent bias voltage and turnoff of the first gain stage and the second gain stage. In some embodiments the first gain characteristic is expansive and the second gain characteristic is compressive. In other embodiments the first gain characteristic is compressive and the second gain characteristic is expansive. In some embodiments the first gain stage is configured to provide RF degeneration control of gain.
摘要翻译：公开了具有增加的线性度的放大系统。放大系统包括具有第一增益特性的第一增益级，具有第二增益特性的第二增益级，以及被配置为在操作期间基本保持第一增益特性与第二增益特性之间的失真拐点对准的偏置电路。偏置电路被配置为通过在静态偏置电压和第一增益级与第二增益级的截止之间提供基本恒定的余量，进一步保持在设计角上的第一增益特性和第二增益特性之间的失真拐点的对准。在一些实施例中，第一增益特性是膨胀的，第二增益特性是压缩的。在其他实施例中，第一增益特性是压缩的，第二增益特性是膨胀的。在一些实施例中，第一增益级被配置为提供增益的RF退化控制。

65. 发明申请

US20170033915A1 Digital Predistortion for Full-Duplex Radio 有权
标题翻译：数字预失真全双工无线电
公开(公告)号：US20170033915A1
公开(公告)日：2017-02-02
申请号：US14878645
申请日：2015-10-08
申请人： NATIONAL INSTRUMENTS CORPORATION
发明人： James W. McCoy , Takao Inoue , Jaeweon Kim
IPC分类号： H04L5/14 , H04L27/00 , H04B1/44 , H04L25/08
CPC分类号： H04L5/14 , H03F1/3247 , H03F3/24 , H03F2200/294 , H03F2200/451 , H04B1/0475 , H04B1/44 , H04B2001/0425 , H04L25/08 , H04L27/0002 , H04L27/368
摘要： Techniques are disclosed relating to use of digital predistortion in the context of full-duplex radio. In some embodiments, an apparatus includes one or more antennas and is configured to simultaneously transmit and receive wireless signals via at least partially overlapping frequency resources using the one or more antennas. In some embodiments, the apparatus includes receive chain circuitry that is configured to process both wireless signals transmitted by the apparatus via the one or more antennas and over-the-air wireless signals from one or more other computing devices. In some embodiments, the apparatus includes one or more processing elements configured to determine one or more digital predistortion parameters based on the wireless signals transmitted by the apparatus via the one or more antennas and processed by the receive chain circuitry and apply predistortion to transmitted wireless signals based on the one or more digital predistortion parameters.
摘要翻译：公开了关于在全双工无线电的上下文中使用数字预失真的技术。在一些实施例中，装置包括一个或多个天线，并且被配置为通过使用一个或多个天线的至少部分重叠的频率资源同时发送和接收无线信号。在一些实施例中，该设备包括接收链路电路，其被配置为处理由设备经由一个或多个天线发送的无线信号和来自一个或多个其他计算设备的空中无线信号。在一些实施例中，该装置包括一个或多个处理元件，其被配置为基于由装置经由一个或多个天线发送的并由接收链电路处理的无线信号来确定一个或多个数字预失真参数，并将预失真应用于所发送的无线信号基于一个或多个数字预失真参数。

66. 发明授权

US09559879B2 PA cell, PA module, wireless communication unit, RF transmitter architecture and method therefor 有权
标题翻译： PA单元，PA模块，无线通信单元，RF发射机架构及其方法
公开(公告)号：US09559879B2
公开(公告)日：2017-01-31
申请号：US14280672
申请日：2014-05-19
申请人： MediaTek Singapore Pte. Ltd.
发明人： Zhiming Deng , Chun-Hsien Peng
IPC分类号： H04L25/03 , H03F3/24 , H03F3/217 , H03F1/32 , H03F3/19 , H04B1/04 , H04L27/36
CPC分类号： H04L25/03343 , H03F1/3205 , H03F1/3241 , H03F1/3247 , H03F3/19 , H03F3/2175 , H03F3/245 , H03F2200/451 , H03F2201/3227 , H03F2201/3233 , H03F2203/21193 , H04B1/0475 , H04B2001/0425 , H04L25/0328 , H04L27/367
摘要： A power amplifier cell includes a first input arranged to receive an in-phase control signal, a second input arranged to receive a quadrature control signal, an input stage arranged to output a drive signal based at least partly on the received in-phase and quadrature control signals, and an output stage arranged to receive at an input thereof the drive signal output by the input stage, and to generate an output signal for the power amplifier cell in response to the received drive signal.
摘要翻译：功率放大器单元包括被布置为接收同相控制信号的第一输入端，布置成接收正交控制信号的第二输入端，输入级，其布置成至少部分地基于接收的同相和正交来输出驱动信号控制信号和输出级，其布置成在其输入处接收由输入级输出的驱动信号，并且响应于所接收的驱动信号而产生功率放大器单元的输出信号。

67. 发明申请

US20160373142A1 Variation Calibration For Envelope Tracking On Chip 有权
标题翻译：芯片上信封跟踪的变化校准
公开(公告)号：US20160373142A1
公开(公告)日：2016-12-22
申请号：US15250920
申请日：2016-08-30
申请人： MediaTek Inc.
发明人： Yen-Liang Chen , Chia-Sheng Peng , Da-Wei Sung
IPC分类号： H04B1/04 , G01R31/28 , H04B17/11 , H03F1/02 , H03F3/195 , H03F3/213 , G01R19/04 , H03F1/32
CPC分类号： H04B1/04 , G01R19/04 , G01R31/2851 , H03F1/0216 , H03F1/3241 , H03F3/195 , H03F3/245 , H03F2200/102 , H03F2200/321 , H03F2200/451 , H04B2001/0425
摘要： Techniques and examples pertaining to variation calibration for envelope tracking on chip are described. Envelope tracking (ET) statistics among multiple wireless-capable mobile devices (e.g., smartphones) may be collected in laboratory. Optimal ET parameters may be determined based on ET statistics. An ET setting file may be generated for ET factory calibration. In production lines, the ET setting file may be loaded into each mobile device for ET factory calibration.
摘要翻译：描述了关于片上包络跟踪的变化校准的技术和示例。可以在实验室收集多个无线能力的移动设备（例如，智能电话）之间的信封跟踪（ET）统计信息。可以基于ET统计来确定最佳ET参数。可以为ET工厂校准生成ET设置文件。在生产线上，可以将ET设置文件加载到每个移动设备中进行ET工厂校准。

68. 发明授权

US09515685B2 Apparatus and method for signal predistortion 有权
标题翻译：信号预失真的装置和方法
公开(公告)号：US09515685B2
公开(公告)日：2016-12-06
申请号：US14249796
申请日：2014-04-10
申请人： Broadcom Corporation
发明人： Juhani Kalervo Aalto , Jari Johannes Heikkinen
IPC分类号： H04B1/04 , H03F1/22 , H03F1/32 , H03F3/24 , H03F3/45
CPC分类号： H04B1/0475 , H03F1/223 , H03F1/3241 , H03F3/245 , H03F3/45179 , H03F2203/45394 , H03F2203/45512 , H03F2203/45528 , H04B2001/0425
摘要： Apparatus and a method for predistortion of a radio-frequency signal are described. At least one predistortion unit is described that is arranged to receive an analog baseband signal before amplification and to generate an analog predistortion signal based on said analog baseband signal. At least one mixer unit is also described and may be electrically coupled to the at least one predistortion unit. In this case, the at least one mixer unit is arranged to receive the analog baseband signal before amplification and the analog predistortion signal and to generate a weighted combination of said signals.
摘要翻译：描述了用于射频信号预失真的装置和方法。描述了至少一个预失真单元，其被布置为在放大之前接收模拟基带信号，并且基于所述模拟基带信号生成模拟预失真信号。还描述了至少一个混合器单元，并且可以电耦合到至少一个预失真单元。在这种情况下，至少一个混频器单元布置成在放大之前接收模拟基带信号和模拟预失真信号，并产生所述信号的加权组合。

69. 发明申请

US20160344483A1 Antenna Calibration in Communications 审中-公开
标题翻译：通信天线校准
公开(公告)号：US20160344483A1
公开(公告)日：2016-11-24
申请号：US15110772
申请日：2014-01-15
申请人： Nokia Solutions and Networks Oy
发明人： Jukka KAREISTO , Eero Olavi HEIKKINEN
IPC分类号： H04B17/12 , H04B1/04
CPC分类号： H04B17/12 , H04B1/0475 , H04B7/0413 , H04B17/21 , H04B2001/0425 , H04W84/042
摘要： A method is disclosed for antenna calibration in communications, the method co icing creating an uplink calibration signal for active antenna or antenna array uplink calibration, at a baseband part of a transmitter directly to a selected duplex spacing or another specified spacing from a transmission signal inside a baseband output sampling rate spectrum of the transmitter. Measurements are carried out on the uplink calibration signal. Based on collected measurement data, calibration information is calculated. The active antenna or antenna array uplink calibration is performed based on the calculated calibration information.
摘要翻译：公开了一种用于通信中的天线校准的方法，所述方法在从发射机的基带部分到发射机的基带部分处直接创建用于有源天线的上行链路校准信号或天线阵列上行链路校准，从而与内部的传输信号发射机的基带输出采样率频谱。在上行链路校准信号上进行测量。根据收集的测量数据，计算校准信息。基于所计算的校准信息执行有源天线或天线阵列上行链路校准。

70. 发明申请

US20160337055A1 FEEDBACK CALIBRATION OF DIGITAL TO TIME CONVERTER 审中-公开
公开(公告)号：US20160337055A1
公开(公告)日：2016-11-17
申请号：US15099301
申请日：2016-04-14
申请人： Intel IP Corporation
发明人： Ashoke Ravi , Ofir Degani , Hasnain Lakdawala
IPC分类号： H04B17/21 , H04B1/04
CPC分类号： H04B17/21 , H03F1/3241 , H03M1/1009 , H03M1/82 , H03M1/84 , H04B1/0475 , H04B2001/0425
摘要： This document discusses apparatus and methods for compensating non-linearity of digital-to-time converters (DTCs). In an example, a wireless device can include a digital-to-time converter (DTC) configured to receive a phase data information from a baseband processor and to provide a first modulation signal for generating a wireless signal, a detector configure to receive the first modulation signal and provide an indication of nonlinearities of the DTC, and a pre-distortion module configured to provide pre-distortion information to the DTC using the indication of nonlinearities.

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