公开(公告)号：US11012105B2

公开(公告)日：2021-05-18

申请号：US16646776

申请日：2017-09-12

Applicant: INTEL CORPORATION

Inventor： Andreas Langer ,  Christoph Hepp ,  Andreas Menkhoff ,  Gunther Kraut

IPC: H04L25/49 ,  H04B1/04 ,  H03F1/32 ,  H03F3/24

Abstract: Systems, circuitries, and methods for predistorting a digital signal in a transmit chain based on a predistortion function are provided in which the function is determined based on a first digital signal or a first transmit chain state. A method includes: receiving a second digital signal that is input to the transmit chain, wherein the transmit chain is characterized by a present transmit chain state; performing a first operation on the second digital signal to generate an adapted digital signal, wherein the first operation is based on either a relationship between the first digital signal and the second digital signal, or a relationship between the first transmit chain state and the present transmit chain state; predistorting the adapted digital signal based on the predistortion function; and performing a second operation on the predistorted adapted signal, wherein the second operation corresponds to an inverse of the first operation.

公开(公告)号：US20200295790A1

公开(公告)日：2020-09-17

申请号：US16646776

申请日：2017-09-12

Applicant: INTEL CORPORATION

Inventor： Andreas Langer ,  Christoph Hepp ,  Andreas Menkhoff ,  Gunther Kraut

IPC: H04B1/04 ,  H03F3/24 ,  H03F1/32

Abstract: Systems, circuitries, and methods for predistorting a digital signal in a transmit chain based on a predistortion function are provided in which the function is determined based on a first digital signal or a first transmit chain state. A method includes: receiving a second digital signal that is input to the transmit chain, wherein the transmit chain is characterized by a present transmit chain state; performing a first operation on the second digital signal to generate an adapted digital signal, wherein the first operation is based on either a relationship between the first digital signal and the second digital signal, or a relationship between the first transmit chain state and the present transmit chain state; predistorting the adapted digital signal based on the predistortion function; and performing a second operation on the predistorted adapted signal, wherein the second operation corresponds to an inverse of the first operation.

公开(公告)号：US20200076373A1

公开(公告)日：2020-03-05

申请号：US16490230

申请日：2017-09-27

Applicant: Intel Corporation

Inventor： Stephan Henzler ,  Andreas Langer ,  Bernhard Raaf

IPC: H03F1/02 ,  H03F3/19 ,  H03F3/21 ,  H02M3/07 ,  H03M1/66 ,  H03F3/189 ,  H03F3/24 ,  H03F3/68

Abstract: Systems, methods, and circuitries are provided for generating a power amplifier supply voltage based on a target envelope signal for a radio frequency (RF) transmit signal. An envelope tracking system includes a first selector circuitry and predistortion circuitry. The first selector circuitry is disposed in a selector module and is configured to input a plurality of voltages conducted on a first plurality of power lanes, wherein the first plurality of power lanes is part of a power distribution network; select a voltage from the plurality of voltages based on the target envelope signal; and provide the selected voltage to a supply lane connected to an input of the power amplifier that amplifies the RF transmit signal. The predistortion circuitry is configured to modify the RF transmit signal based on a selected power lane of the first plurality of power lanes that conducts the selected voltage.

公开(公告)号：US09461590B2

公开(公告)日：2016-10-04

申请号：US14568313

申请日：2014-12-12

Applicant: Intel Corporation

Inventor： Andreas Langer

IPC: H03F3/68 ,  H03F1/02 ,  H03F3/19 ,  H03F3/21

CPC classification number: H03F1/0205 ,  H03F1/0222 ,  H03F1/0277 ,  H03F3/189 ,  H03F3/19 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/111 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2200/516 ,  H03F2203/21106

Abstract: Envelope tracking (ET) is enabled in connection with single-band or multi-band transmission. One example system includes two or more power amplification components associated with distinct frequency bands, with at least one including a first power amplifier (PA) configured to operate in an ET mode, and at least one including a second PA configured to operate in an average power tracking (APT) mode of operation. A first DC-to-DC converter is configured to provide a first supply voltage according to the ET mode to each first PA, and a second DC-to-DC converter is configured to provide a second supply voltage according to the APT mode to each second PA. A control component is configured to determine a present transmission mode and to select on that basis one or more PAs, wherein the control component selects at most one of the first PAs and at most one of the second PAs.

Abstract translation: 信封跟踪（ET）与单频带或多频带传输相关联。 一个示例性系统包括与不同频带相关联的两个或更多个功率放大组件，其中至少一个功率放大组件包括被配置为以ET模式操作的第一功率放大器（PA），以及至少一个包括被配置为以平均值 功率跟踪（APT）运行模式。 第一DC-DC转换器被配置为向每个第一PA提供根据ET模式的第一电源电压，并且第二DC-DC转换器被配置为根据APT模式将第二电源电压提供给每个 第二个PA。 控制组件被配置为确定当前传输模式并且在该基础上选择一个或多个PA，其中所述控制部件至少选择所述第一PA中的一个和所述第二PA中的至少一个。

公开(公告)号：US11463048B2

公开(公告)日：2022-10-04

申请号：US17031944

申请日：2020-09-25

Applicant: Intel Corporation

Inventor： Stephan Henzler ,  Andreas Langer ,  Bernhard Raaf

IPC: H03F1/30 ,  H03F1/02 ,  H02M3/07 ,  H03F3/189 ,  H03F3/19 ,  H03F3/21 ,  H03F3/24 ,  H03F3/68 ,  H03M1/66 ,  H02M3/158

Abstract: Systems, methods, and circuitries are provided for generating a power amplifier supply voltage based on a target envelope signal for a radio frequency (RF) transmit signal. An envelope tracking system includes a first selector circuitry and predistortion circuitry. The first selector circuitry is disposed in a selector module and is configured to input a plurality of voltages conducted on a first plurality of power lanes, wherein the first plurality of power lanes is part of a power distribution network; select a voltage from the plurality of voltages based on the target envelope signal; and provide the selected voltage to a supply lane connected to an input of the power amplifier that amplifies the RF transmit signal. The predistortion circuitry is configured to modify the RF transmit signal based on a selected power lane of the first plurality of power lanes that conducts the selected voltage.

公开(公告)号：US11258640B2

公开(公告)日：2022-02-22

申请号：US16958060

申请日：2018-03-30

Applicant: Intel Corporation

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

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

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：US20160105151A1

公开(公告)日：2016-04-14

申请号：US14512697

申请日：2014-10-13

Applicant: Intel Corporation

Inventor： Andreas Langer

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/19

CPC classification number: H03F1/0205 ,  H03F1/0227 ,  H03F1/0277 ,  H03F1/32 ,  H03F1/3241 ,  H03F3/19 ,  H03F3/195 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/111 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2203/21106 ,  H03F2203/21145 ,  H03F2203/7209 ,  H03F2203/7215 ,  H04B1/006 ,  H04B1/0475 ,  H04B1/0483 ,  H04B2001/0425

Abstract: A dual mode, dual core power amplifier (PA) device includes a plurality of PA chains that generate output power according to an envelope tracking mode and a non-envelope tracking mode. The different modes can be selected to generate output power based on a set of predetermined criteria, which can be related to an input signal received by the system and related to a target power. A first PA chain with one or more PA cores is configured to operate in the envelope tracking mode based on at least a portion of the predetermined criteria being identified in the input signal and to generate output power with an envelope voltage supply that changes with an envelope of the input signal. In addition, a second PA chain with one or more PA cores can operate in a constant voltage supply mode or the non-envelope tracking mode according to the predetermined criteria.

Abstract translation: 双模双核功率放大器（PA）装置包括根据包络跟踪模式和非包络跟踪模式产生输出功率的多个PA链。 可以选择不同的模式以基于一组预定准则来产生输出功率，这些预定标准可以与系统接收并与目标功率相关的输入信号相关。 具有一个或多个PA内核的第一PA链被配置为基于在输入信号中识别的预定标准的至少一部分在包络跟踪模式下工作，并且利用随信封改变的包络电压源产生输出功率 的输入信号。 此外，具有一个或多个PA内核的第二PA链可以根据预定标准在恒定电压供应模式或非包络跟踪模式下操作。

公开(公告)号：US09467095B2

公开(公告)日：2016-10-11

申请号：US14512697

申请日：2014-10-13

Applicant: Intel Corporation

Inventor： Andreas Langer

IPC: H03F1/14 ,  H03F1/02 ,  H03F3/19 ,  H03F3/21 ,  H03F1/32 ,  H03F3/195 ,  H03F3/24 ,  H04B1/00 ,  H04B1/04

CPC classification number: H03F1/0205 ,  H03F1/0227 ,  H03F1/0277 ,  H03F1/32 ,  H03F1/3241 ,  H03F3/19 ,  H03F3/195 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/111 ,  H03F2200/411 ,  H03F2200/451 ,  H03F2203/21106 ,  H03F2203/21145 ,  H03F2203/7209 ,  H03F2203/7215 ,  H04B1/006 ,  H04B1/0475 ,  H04B1/0483 ,  H04B2001/0425

Abstract: A dual mode, dual core power amplifier (PA) device includes a plurality of PA chains that generate output power according to an envelope tracking mode and a non-envelope tracking mode. The different modes can be selected to generate output power based on a set of predetermined criteria, which can be related to an input signal received by the system and related to a target power. A first PA chain with one or more PA cores is configured to operate in the envelope tracking mode based on at least a portion of the predetermined criteria being identified in the input signal and to generate output power with an envelope voltage supply that changes with an envelope of the input signal. In addition, a second PA chain with one or more PA cores can operate in a constant voltage supply mode or the non-envelope tracking mode according to the predetermined criteria.

Abstract translation: 双模双核功率放大器（PA）装置包括根据包络跟踪模式和非包络跟踪模式产生输出功率的多个PA链。 可以选择不同的模式以基于一组预定准则来产生输出功率，这些预定标准可以与系统接收并与目标功率相关的输入信号相关。 具有一个或多个PA内核的第一PA链被配置为基于在输入信号中识别的预定标准的至少一部分在包络跟踪模式下工作，并且利用随信封改变的包络电压源产生输出功率 的输入信号。 此外，具有一个或多个PA内核的第二PA链可以根据预定标准在恒定电压供应模式或非包络跟踪模式下操作。

公开(公告)号：US09425742B2

公开(公告)日：2016-08-23

申请号：US14565617

申请日：2014-12-10

Applicant: Intel Corporation

Inventor： Andreas Langer ,  Simon Hughes

IPC: H03F3/191 ,  H03F1/02 ,  H03F3/19 ,  H03F3/21

CPC classification number: H03F1/0205 ,  H03F1/0222 ,  H03F1/30 ,  H03F1/56 ,  H03F3/19 ,  H03F3/195 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/171 ,  H03F2200/336 ,  H03F2200/387 ,  H03F2200/447 ,  H03F2200/451 ,  H03H7/40 ,  H03H11/30

Abstract: A tunable matching network is configured to couple at least one filter with a power amplifier that is configured to operate in an envelope tracking (ET) mode of operation over a transmit band. A control component is configured to detect a present set of operating conditions of the power amplifier when the power amplifier operates in the ET mode of operation. The present set of operating conditions comprises a present frequency of operation, and the control component is further configured to transmit a control signal to the tunable matching network in response to the detected present set of operating conditions. The tunable matching network is further configured to adjust an impedance of the tunable matching network in response to the transmitted control signal such that one or more ET characteristics are optimized based at least in part on the present set of operating conditions.

Abstract translation: 可配置匹配网络被配置为将至少一个滤波器与功率放大器耦合，功率放大器被配置为在发射频带上以包络跟踪（ET）操作模式操作。 控制部件被配置为当功率放大器在ET操作模式下操作时，检测功率放大器的当前工作状态集合。 当前的操作条件集合包括当前的操作频率，并且控制组件还被配置为响应于检测到的当前操作条件而将控制信号发送到可调谐匹配网络。 可调谐匹配网络还被配置为响应于所发送的控制信号来调整可调匹配网络的阻抗，使得至少部分地基于当前的操作条件集合优化一个或多个ET特性。

公开(公告)号：US20160173031A1

公开(公告)日：2016-06-16

申请号：US14568313

申请日：2014-12-12

Applicant: Intel Corporation

Inventor： Andreas Langer

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/19

CPC classification number: H03F1/0205 ,  H03F1/0222 ,  H03F1/0277 ,  H03F3/189 ,  H03F3/19 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/111 ,  H03F2200/336 ,  H03F2200/451 ,  H03F2200/516 ,  H03F2203/21106

Abstract: Envelope tracking (ET) is enabled in connection with single-band or multi-band transmission. One example system includes two or more power amplification components associated with distinct frequency bands, with at least one including a first power amplifier (PA) configured to operate in an ET mode, and at least one including a second PA configured to operate in an average power tracking (APT) mode of operation. A first DC-to-DC converter is configured to provide a first supply voltage according to the ET mode to each first PA, and a second DC-to-DC converter is configured to provide a second supply voltage according to the APT mode to each second PA. A control component is configured to determine a present transmission mode and to select on that basis one or more PAs, wherein the control component selects at most one of the first PAs and at most one of the second PAs.

Abstract translation: 信封跟踪（ET）与单频带或多频带传输相关联。 一个示例性系统包括与不同频带相关联的两个或更多个功率放大组件，其中至少一个功率放大组件包括被配置为以ET模式操作的第一功率放大器（PA），以及至少一个包括被配置为以平均值 功率跟踪（APT）运行模式。 第一DC-DC转换器被配置为向每个第一PA提供根据ET模式的第一电源电压，并且第二DC-DC转换器被配置为根据APT模式将第二电源电压提供给每个 第二个PA。 控制组件被配置为确定当前传输模式并且在该基础上选择一个或多个PA，其中所述控制部件至少选择所述第一PA中的一个和所述第二PA中的至少一个。