公开(公告)号：US20210067386A1

公开(公告)日：2021-03-04

申请号：US16958060

申请日：2018-03-30

Applicant: Intel IP Corporation

Inventor： Armando Cova ,  Christoph Hepp ,  Gunther Kraut ,  Andreas Langer

IPC: H04L25/03 ,  H04L25/49 ,  H04L27/34 ,  H04B1/04

Abstract: An apparatus for a mobile communication device adapted for digital pre-distortion that includes a memory and a processor operatively coupled to the memory of the processor. The processor receives a first input signal and also receives a first output signal from a power amplifier that is based on the first input signal. The processor additionally varies compression applied to a second input signal based on the first output signal of the power amplifier, generates a distortion compensation vector for the second input signal based on the first output signal of the power amplifier, and also varies an input excitation signal supplied to the power amplifier based on the first output signal of the power amplifier.

公开(公告)号：US10128872B2

公开(公告)日：2018-11-13

申请号：US14835828

申请日：2015-08-26

Applicant: Intel IP Corporation

Inventor： Andreas Langer ,  Thomas Bruder

IPC: H04B1/00 ,  H04W72/04

Abstract: A communication device comprises a set of filters that are selectively coupled to different groups of front end ports and an antenna port to form a diplexer, a single filter or a no filter connection for transmission and reception of different data signals. A processor operates to selectively determine or combine filters and couple them to the front end ports and the antenna port based on an operational mode and a frequency separation of signals operating in different frequency ranges of different operating bands. The operational mode can alter between a carrier aggregation mode, in which more than one operating band is aggregated during transmission or reception, and a non-carrier aggregation mode, in which only one filter, no filters or the diplexer is bypassed. The insertion loss of the transmissions and receptions can also be actively decreased.

公开(公告)号：US20180234060A1

公开(公告)日：2018-08-16

申请号：US15811860

申请日：2016-06-08

Applicant: Intel IP Corporation

Inventor： Andreas Langer ,  Christoph Hepp

IPC: H03F3/19 ,  H03F3/24 ,  H03F1/02 ,  H03G3/30

CPC classification number: H03F3/19 ,  H03F1/0216 ,  H03F1/0222 ,  H03F3/245 ,  H03F2200/105 ,  H03F2200/336 ,  H03F2200/36 ,  H03F2200/451 ,  H03G3/3042 ,  H03G2201/302 ,  H03G2201/307 ,  H04B1/04

Abstract: A circuit for generating a radio frequency signal is provided. The circuit includes an amplifier configured to generate a radio frequency signal based on a baseband signal. Further, the circuit includes a power supply configured to generate a variable supply voltage based on a control signal indicating a desired supply voltage, and to supply the variable supply voltage to the amplifier. The circuit further includes an envelope tracking circuit configured to generate the control signal based on a bandwidth of the baseband signal, and to supply the control signal to the power supply.

公开(公告)号：US10051578B2

公开(公告)日：2018-08-14

申请号：US15415654

申请日：2017-01-25

Applicant: Intel IP Corporation

Inventor： Andreas Langer ,  Thomas Bruder

IPC: H04B17/00 ,  H04W52/22 ,  G01R21/133 ,  H04B1/04

Abstract: An apparatus for determining information on a power variation of a transmit signal comprises a power amplifier module, an antenna module and a power variation determining module. The power amplifier module amplifies a radio frequency transmit signal and the antenna module transmits at least partly the amplified radio frequency transmit signal. The power variation determining module determines a weighted sum of a first feedback signal derived from the amplified radio frequency transmit signal and a second feedback signal derived from the amplified radio frequency transmit signal. The first feedback signal and the second feedback signal comprise different dependencies on a varying impedance at the antenna module. Further, the power variation determining module generates a power variation signal based on the weighted sum. The power variation signal comprises information related to a power variation of the amplified radio frequency transmit signal.

公开(公告)号：US09225308B2

公开(公告)日：2015-12-29

申请号：US14611409

申请日：2015-02-02

Applicant: Intel IP Corporation

Inventor： Andreas Langer ,  Gunther Kraut

IPC: H04B1/04 ,  H03G3/30

CPC classification number: H03G3/3042 ,  H03F1/0227 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/102 ,  H04B1/0458 ,  H04L27/368

Abstract: An apparatus for amplifying a transmit signal comprises a transmit path comprising a power amplifier module to be coupled to an antenna module. The power amplifier module is configured to amplify a transmit signal. Further, the apparatus comprises an envelope tracking path comprising a variable delay module and a power supply module. The variable delay module is configured to vary a signal delay within the envelope tracking path according to a delay control parameter. Further, the apparatus comprises a delay control module configured to provide the delay control parameter based on a current characteristic transmit frequency of the transmit signal.

Abstract translation: 用于放大发射信号的装置包括发射路径，其包括要耦合到天线模块的功率放大器模块。 功率放大器模块被配置为放大发射信号。 此外，该装置包括包括可变延迟模块和电源模块的包络跟踪路径。 可变延迟模块被配置为根据延迟控制参数改变包络跟踪路径内的信号延迟。 此外，该装置包括延迟控制模块，该延迟控制模块被配置为基于发送信号的当前特性发送频率来提供延迟控制参数。

公开(公告)号：US10015749B2

公开(公告)日：2018-07-03

申请号：US14865369

申请日：2015-09-25

Applicant: Intel IP Corporation

Inventor： Andreas Langer ,  Thomas Bruder

IPC: H04B7/00 ,  H04W52/08 ,  H04B1/00 ,  H04W52/34

CPC classification number: H04W52/08 ,  H04B1/0057 ,  H04W52/34

Abstract: Techniques for closed loop power control in multi-transmission systems are discussed. One example system employing such techniques can include coupling circuitry configured to receive a transmission path signal comprising a plurality of signal components, wherein the plurality of signal components comprises at least a first signal component in a first frequency band and a second frequency component in a second frequency band distinct from the first frequency band; filter circuitry configured to receive the transmission path signal from the coupling circuitry, to separate the first signal component from the second signal component, and to separately output the first signal component and the second signal component; and power control circuitry configured to receive the first signal component and the second signal component, and to generate a first power control signal based on the first signal component and a second power control signal based on the second signal component.

公开(公告)号：US09973370B1

公开(公告)日：2018-05-15

申请号：US15614817

申请日：2017-06-06

Applicant: Intel IP Corporation

Inventor： Andreas Langer ,  Christoph Hepp

IPC: H04L27/36 ,  H04W52/52

CPC classification number: H04L27/368 ,  H04B7/00 ,  H04B17/3912 ,  H04W52/365

Abstract: An apparatus compensates nonlinearities in envelope tracking (ET) used in a mobile device by limiting a bandwidth of an envelope signal representing an envelope of an input baseband signal to be less than a bandwidth of tracker circuitry, generating a scaled replica of an output signal of the tracker circuitry based on the bandwidth-limited envelope signal, and generating a model distortion signal based on the scaled replica and the input baseband signal, where the model distortion signal emulates ET linearity degradation. The apparatus is further configured to generate an output baseband signal based on the scaled replica, the model distortion signal, and the input baseband signal, where the output baseband signal is pre-distorted relative to the input baseband signal according to the scaled replica, the model distortion signal, and the input baseband signal to compensate for degradations in transmit signal quality due to ET nonlinearities.

公开(公告)号：US09571135B2

公开(公告)日：2017-02-14

申请号：US14663640

申请日：2015-03-20

Applicant: Intel IP Corporation

Inventor： Andreas Langer

IPC: H04B1/04 ,  H03L7/087 ,  H03F1/02 ,  H03F1/30 ,  H03F1/32 ,  H03F1/56 ,  H03F3/195 ,  H03F3/24

CPC classification number: H04B1/0475 ,  H03F1/0222 ,  H03F1/0233 ,  H03F1/302 ,  H03F1/3247 ,  H03F1/3258 ,  H03F1/3282 ,  H03F1/56 ,  H03F3/195 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/222 ,  H03F2200/336 ,  H03F2200/387 ,  H03F2200/405 ,  H03F2200/447 ,  H03L7/087 ,  H04B2001/0408

Abstract: Compensation for one or more effects of impedance mismatch between a power amplifier (PA) and at least one filter is discussed. One example system that compensates for impedance mismatch with at least one filter comprises a PA, a measurement component, and a feedback component. The PA is configured to receive PA stimuli comprising a supply voltage and a radio frequency (RF) signal to be amplified, wherein a PA output is configured to be coupled to the at least one filter. The measurement component is coupled to the PA and configured to measure an output signal from the PA, wherein the output signal comprises a forward signal associated with the PA and a reflected signal associated with the at least one filter. The feedback component is configured to receive the output signal and to adjust one or more of the PA stimuli based at least in part on the output signal.

Abstract translation: 讨论了功率放大器（PA）与至少一个滤波器之间的一个或多个阻抗失配影响的补偿。 补偿与至少一个滤波器的阻抗失配的一个示例性系统包括PA，测量部件和反馈部件。 PA被配置为接收包括要放大的电源电压和射频（RF）信号的PA刺激，其中PA输出被配置为耦合到所述至少一个滤波器。 所述测量部件耦合到所述PA并被配置为测量来自所述PA的输出信号，其中所述输出信号包括与所述PA相关联的正向信号和与所述至少一个滤波器相关联的反射信号。 反馈分量被配置为接收输出信号并且至少部分地基于输出信号来调整PA刺激中的一个或多个。

公开(公告)号：US20200037263A1

公开(公告)日：2020-01-30

申请号：US15736416

申请日：2016-05-23

Applicant: Intel IP Corporation

Inventor： Andreas Langer ,  Thomas Bruder

IPC: H04W52/24 ,  H04W52/08 ,  H04W52/10 ,  H04W52/42 ,  H04W52/52

Abstract: A data transmission system may comprise a first transmission chain comprising a first transmission power controller, the first transmission power controller being configured to operate in an open loop power control mode or in a closed loop power control mode; a second transmission chain; and a power control mode selector configured to select the first transmission power controller to operate in the open loop power control mode or in the closed loop power control mode based on at least one quantity indicative of interference induced by the second transmission chain in the first transmission power controller when operating in the closed loop power control mode.

公开(公告)号：US09588158B2

公开(公告)日：2017-03-07

申请号：US14341115

申请日：2014-07-25

Applicant: Intel IP Corporation

Inventor： Andreas Langer ,  Thomas Bruder

IPC: H04B1/04 ,  G01R21/00 ,  H04W52/04 ,  H04W52/22 ,  H04W52/42

CPC classification number: H04W52/226 ,  G01R21/00 ,  G01R21/133 ,  H03F1/02 ,  H03F3/24 ,  H04B1/0458 ,  H04B2001/0416 ,  H04B2001/045 ,  H04W52/04 ,  H04W52/42

Abstract: An apparatus for determining information on a power variation of a transmit signal comprises a power amplifier module, an antenna module and a power variation determining module. The power amplifier module amplifies a radio frequency transmit signal and the antenna module transmits at least partly the amplified radio frequency transmit signal. The power variation determining module determines a weighted sum of a first feedback signal derived from the amplified radio frequency transmit signal and a second feedback signal derived from the amplified radio frequency transmit signal. The first feedback signal and the second feedback signal comprise different dependencies on a varying impedance at the antenna module. Further, the power variation determining module generates a power variation signal based on the weighted sum. The power variation signal comprises information related to a power variation of the amplified radio frequency transmit signal.

Abstract translation: 用于确定关于发射信号的功率变化的信息的装置包括功率放大器模块，天线模块和功率变化确定模块。 功率放大器模块放大射频发射信号，天线模块至少部分地发送放大的射频发射信号。 功率变化确定模块确定从放大的射频发射信号导出的第一反馈信号和从放大的射频发射信号导出的第二反馈信号的加权和。 第一反馈信号和第二反馈信号包括与天线模块上的变化阻抗的不同依赖性。 此外，功率变化确定模块基于加权和生成功率变化信号。 功率变化信号包括与放大射频发射信号的功率变化有关的信息。