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公开(公告)号：US10742240B2
公开(公告)日：2020-08-11
申请号：US16521598
申请日：2019-07-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qian Yin , Yuxiang Xiao , Erni Zhu
Abstract: A signal processing method and device are used to obtain multi-band signals that enable a dual-input power amplifier to achieve high working performance during amplification. The device can decompose and combine analog radio frequency signals of at least two frequency bands by using an analog signal decomposition apparatus and a combination apparatus, to obtain two paths of multi-band signals whose spectra include the at least two frequency bands. The two paths of signals satisfy nonlinearity of the dual-input power amplifier. Therefore, after the two paths of signals are input into the dual-input power amplifier, the dual-input power amplifier can achieve optimal working performance.
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公开(公告)号：US09893748B2
公开(公告)日：2018-02-13
申请号：US15585642
申请日：2017-05-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Siqing Ye , Jinming Wang , Erni Zhu , Chen Wang , Lan You
CPC classification number: H04B1/0475 , H03F1/3247 , H03F3/19 , H03F3/21 , H03F3/24 , H03F2200/102 , H03F2200/451 , H03F2201/3233 , H04B2001/0408 , H04L25/49
Abstract: An analog predistorter (APD) core module including a radio frequency delay module, an envelope module, and a contact matrix module. The radio frequency delay module is configured to receive a feed-forward radio frequency signal, generate multiple radio frequency delay signals with different delays according to the feed-forward radio frequency signal, and output each radio frequency delay signal to the contact matrix module. The envelope module is configured to receive the feed-forward radio frequency signal, perform envelope detection on the feed-forward radio frequency signal to obtain multiple envelope signals with different delays, and output each envelope signal to the contact matrix module. The contact matrix module is configured to receive each radio frequency delay signal, each envelope signal, and a predistortion coefficient from an exterior source, and generate a predistortion signal according to the predistortion coefficient, each radio frequency delay signal, and each envelope signal.
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Patent Agency Ranking
公开(公告)号：US09590564B2
公开(公告)日：2017-03-07
申请号：US14998371
申请日：2015-12-24
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H03F1/0288 , H03F1/3247 , H03F1/3252 , H03F3/189 , H03F3/19 , H03F3/245 , H03F2200/111 , H03F2200/165 , H03F2200/451
Abstract: The present application provides a multiband power amplification apparatus. The first input terminal receives a signal in a frequency band f1; the second input terminal receives a signal in a frequency band f2. The first adjustment module adjusts a first channel of signal and then outputs an adjusted first channel of signal to the first adder. The second adjustment module adjusts a third channel of signal and then outputs an adjusted third channel of signal to the first adder. The first adder converges the signal adjusted by the second adjustment module and the signal output by the first adjustment module and then outputs a converged signal to a first digital-to-analog converter. The second adder converges a second channel of signal and a fourth channel of signal and then outputs a converged signal to a second digital-to-analog converter.
Abstract translation: 本申请提供了一种多频带功率放大装置。 第一输入端子接收频带f1中的信号; 第二输入端子接收频带f2中的信号。 第一调节模块调节第一信号通道，然后将经调整的第一信号通道输出到第一加法器。 第二调整模块调整第三信号通道，然后将调整的第三信号通道输出到第一加法器。 第一加法器收敛由第二调整模块调整的信号和由第一调整模块输出的信号，然后将会聚信号输出到第一数模转换器。 第二加法器收敛信号的第二信道和第四信号信道，然后将会聚信号输出到第二数模转换器。
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公开(公告)号：US20160142022A1
公开(公告)日：2016-05-19
申请号：US14998371
申请日：2015-12-24
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H03F1/0288 , H03F1/3247 , H03F1/3252 , H03F3/189 , H03F3/19 , H03F3/245 , H03F2200/111 , H03F2200/165 , H03F2200/451
Abstract: The present application provides a multiband power amplification apparatus. The first input terminal receives a signal in a frequency band f1; the second input terminal receives a signal in a frequency band f2. The first adjustment module adjusts a first channel of signal and then outputs an adjusted first channel of signal to the first adder. The second adjustment module adjusts a third channel of signal and then outputs an adjusted third channel of signal to the first adder. The first adder converges the signal adjusted by the second adjustment module and the signal output by the first adjustment module and then outputs a converged signal to a first digital-to-analog converter. The second adder converges a second channel of signal and a fourth channel of signal and then outputs a converged signal to a second digital-to-analog converter.
Abstract translation: 本申请提供了一种多频带功率放大装置。 第一输入端子接收频带f1中的信号; 第二输入端子接收频带f2中的信号。 第一调节模块调节第一信号通道，然后将经调整的第一信号通道输出到第一加法器。 第二调整模块调整第三信号通道，然后将调整的第三信号通道输出到第一加法器。 第一加法器收敛由第二调整模块调整的信号和由第一调整模块输出的信号，然后将会聚信号输出到第一数模转换器。 第二加法器收敛信号的第二信道和第四信号信道，然后将会聚信号输出到第二数模转换器。
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5.发明申请Predistortion Correction Method, Predistortion Correction Apparatus, Transmitter, and Base Station 有权预失真校正方法，预失真校正装置，变送器和基站公开(公告)号：US20150078484A1
公开(公告)日：2015-03-19
申请号：US14552056
申请日：2014-11-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yuxiang Xiao , Erni Zhu , Anding Zhu
CPC classification number: H03F1/3247 , H03F1/3241 , H03F1/3252 , H03F1/3258 , H03F3/19 , H03F3/24 , H03F3/245 , H03F2200/36 , H03F2200/39 , H03F2200/451 , H03F2201/3209 , H03F2201/3215 , H03F2201/3224 , H03F2201/3227 , H04B1/0475 , H04B2001/0408 , H04B2001/0425 , H04L27/368
Abstract: A predistortion correction method, a predistortion correction apparatus, a transmitter, and a base station are provided. The method includes: performing, based on a digital predistortion model, non-linear processing on an input transmit signal to obtain higher-order distortion time-domain signals; and obtaining, after performing processing on the higher-order distortion time-domain signals, a predistortion signal to be input to a power amplifier, where a process of converting the higher-order distortion time-domain signals to the predistortion signal includes bandwidth limitation processing, so that the predistortion signal to be input to the power amplifier is a predistortion signal within a preset bandwidth. Embodiments of the present invention can ensure predistortion accuracy, and can also reduce a requirement for a bandwidth and a sampling rate of a feedback channel, thereby reducing a predistortion cost.
Abstract translation: 提供了预失真校正方法，预失真校正装置，发射机和基站。 该方法包括：基于数字预失真模型对输入发射信号进行非线性处理，以获得更高阶失真时域信号; 在对高阶失真时域信号执行处理之后，获得要输入到功率放大器的预失真信号，其中将高阶失真时域信号转换为预失真信号的处理包括带宽限制处理 ，使得要输入到功率放大器的预失真信号是预设带宽内的预失真信号。 本发明的实施例可以确保预失真精度，并且还可以减少对反馈信道的带宽和采样率的要求，从而降低预失真成本。
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公开(公告)号：US20170237455A1
公开(公告)日：2017-08-17
申请号：US15585642
申请日：2017-05-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Siqing Ye , Jinming Wang , Erni Zhu , Chen Wang , Lan You
CPC classification number: H04B1/0475 , H03F1/3247 , H03F3/19 , H03F3/21 , H03F3/24 , H03F2200/102 , H03F2200/451 , H03F2201/3233 , H04B2001/0408 , H04L25/49
Abstract: An analog predistorter (APD) core module including a radio frequency delay module, an envelope module, and a contact matrix module. The radio frequency delay module is configured to receive a feed-forward radio frequency signal, generate multiple radio frequency delay signals with different delays according to the feed-forward radio frequency signal, and output each radio frequency delay signal to the contact matrix module. The envelope module is configured to receive the feed-forward radio frequency signal, perform envelope detection on the feed-forward radio frequency signal to obtain multiple envelope signals with different delays, and output each envelope signal to the contact matrix module. The contact matrix module is configured to receive each radio frequency delay signal, each envelope signal, and a predistortion coefficient from an exterior source, and generate a predistortion signal according to the predistortion coefficient, each radio frequency delay signal, and each envelope signal.
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7.发明授权Predistortion correction method, predistortion correction apparatus, transmitter, and base station 有权预失真校正方法，预失真校正装置，发射机和基站公开(公告)号：US09209753B2
公开(公告)日：2015-12-08
申请号：US14552056
申请日：2014-11-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yuxiang Xiao , Erni Zhu , Anding Zhu
CPC classification number: H03F1/3247 , H03F1/3241 , H03F1/3252 , H03F1/3258 , H03F3/19 , H03F3/24 , H03F3/245 , H03F2200/36 , H03F2200/39 , H03F2200/451 , H03F2201/3209 , H03F2201/3215 , H03F2201/3224 , H03F2201/3227 , H04B1/0475 , H04B2001/0408 , H04B2001/0425 , H04L27/368
Abstract: A predistortion correction method, a predistortion correction apparatus, a transmitter, and a base station are provided. The method includes: performing, based on a digital predistortion model, non-linear processing on an input transmit signal to obtain higher-order distortion time-domain signals; and obtaining, after performing processing on the higher-order distortion time-domain signals, a predistortion signal to be input to a power amplifier, where a process of converting the higher-order distortion time-domain signals to the predistortion signal includes bandwidth limitation processing, so that the predistortion signal to be input to the power amplifier is a predistortion signal within a preset bandwidth. Embodiments of the present invention can ensure predistortion accuracy, and can also reduce a requirement for a bandwidth and a sampling rate of a feedback channel, thereby reducing a predistortion cost.
Abstract translation: 提供了预失真校正方法，预失真校正装置，发射机和基站。 该方法包括：基于数字预失真模型对输入发射信号进行非线性处理，以获得更高阶失真时域信号; 在对高阶失真时域信号执行处理之后，获得要输入到功率放大器的预失真信号，其中将高阶失真时域信号转换为预失真信号的处理包括带宽限制处理 ，使得要输入到功率放大器的预失真信号是预设带宽内的预失真信号。 本发明的实施例可以确保预失真精度，并且还可以减少对反馈信道的带宽和采样率的要求，从而降低预失真成本。
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