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Patent Agency Ranking
公开(公告)号：US10171041B2
公开(公告)日：2019-01-01
申请号：US15975340
申请日：2018-05-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Victor Ivanovich Dzhigan , Dmitry Anatolievich Dolgikh , Anton Igorevich Smekalov , Huaping Shi
Abstract: The disclosure relates to a predistortion device for a non-linear PA device, comprising: an input terminal for receiving an input signal; a predistortion filter, connected between the input terminal and the non-linear PA device; a first delay element, coupled to the input terminal, and configured to delay the input signal by a time delay D to provide a delayed input signal; and an adaptive filter unit, comprising an adaptive filter having adjustable filter weights, and configured to filter the delayed input signal, and an adjusting unit, wherein the adjusting unit is configured to process an adaptive algorithm, based on the delayed input signal, to adjust the filter weights of the adaptive filter, and to provide both the adaptive filter and the predistortion filter with the same adjusted filter weights.
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公开(公告)号：US20140173143A1
公开(公告)日：2014-06-19
申请号：US14186960
申请日：2014-02-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hai Li , Huaping Shi , Yanzhao Pang , Christian Mazzucco , Sergio Bianchi , Xianfeng Li
IPC: H04L12/801
Abstract: The present invention relates to the field of communications technologies and discloses a data processing method and apparatus to obtain a DPD non-linear distortion compensation coefficient under a QPSK mode. The embodiments of the present invention receive a first data flow, and perform interpolation into the first data flow to obtain a second data flow; receive a third data flow, and calculate a data flow signal quality difference between the third data flow and the second data flow; and obtain a DPD non-linear distortion compensation coefficient according to the data flow signal quality difference and the third data flow or the second data flow. The embodiments of the present invention are applicable to the scenarios of obtaining a DPD non-linear distortion compensation coefficient in QPSK mode.
Abstract translation: 本发明涉及通信技术领域，并公开了一种在QPSK模式下获得DPD非线性失真补偿系数的数据处理方法和装置。 本发明的实施例接收第一数据流，并对第一数据流执行内插以获得第二数据流; 接收第三数据流，并计算第三数据流和第二数据流之间的数据流信号质量差; 并根据数据流信号质量差和第三数据流或第二数据流获得DPD非线性失真补偿系数。 本发明的实施例可应用于在QPSK模式中获得DPD非线性失真补偿系数的情况。
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公开(公告)号：US09008153B2
公开(公告)日：2015-04-14
申请号：US14280136
申请日：2014-05-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanzhao Pang , Huaping Shi , Song Chen
CPC classification number: H04B1/62 , H03F1/3247 , H03F1/3258 , H03F3/24 , H03F2201/3215 , H04B1/0475 , H04B7/086 , H04B10/58 , H04B2001/0408 , H04B2001/0425 , H04L27/368
Abstract: Embodiments of the present invention disclose a microwave predistorted signal generating method and apparatus. A microwave receiver receives a first received signal that has undergone analog-to-digital conversion; performs channel compensation on the first received signal, to obtain a second received signal; estimates a first transmitted signal according to the second received signal, where the first transmitted signal is a transmitted signal of a microwave transmitter before digital-to-analog conversion; performs predistortion coefficient computation according to the second received signal and the first transmitted signal; performs, by using a first-order coefficient obtained through the predistortion coefficient computation, linear distortion compensation on the second received signal that is before the first transmitted signal is estimated; and sends other predistortion coefficients except for the first-order coefficient to the microwave transmitter, so that the microwave transmitter performs non-linearity predistortion on a transmitted signal.
Abstract translation: 本发明的实施例公开了一种微波预失真信号产生方法和装置。 微波接收机接收经过模数转换的第一接收信号; 对第一接收信号执行信道补偿，以获得第二接收信号; 根据第二接收信号估计第一发射信号，其中第一发射信号是数模转换之前微波发射机的发射信号; 根据第二接收信号和第一发送信号执行预失真系数计算; 通过使用通过预失真系数计算获得的一阶系数来执行在估计第一发送信号之前的第二接收信号上的线性失真补偿; 并将除一阶系数之外的其它预失真系数发送到微波发射机，使得微波发射机对发射信号执行非线性预失真。
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公开(公告)号：US20140247906A1
公开(公告)日：2014-09-04
申请号：US14280136
申请日：2014-05-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanzhao Pang , Huaping Shi , Song Chen
CPC classification number: H04B1/62 , H03F1/3247 , H03F1/3258 , H03F3/24 , H03F2201/3215 , H04B1/0475 , H04B7/086 , H04B10/58 , H04B2001/0408 , H04B2001/0425 , H04L27/368
Abstract: Embodiments of the present invention disclose a microwave predistorted signal generating method and apparatus. A microwave receiver receives a first received signal that has undergone analog-to-digital conversion; performs channel compensation on the first received signal, to obtain a second received signal; estimates a first transmitted signal according to the second received signal, where the first transmitted signal is a transmitted signal of a microwave transmitter before digital-to-analog conversion; performs predistortion coefficient computation according to the second received signal and the first transmitted signal; performs, by using a first-order coefficient obtained through the predistortion coefficient computation, linear distortion compensation on the second received signal that is before the first transmitted signal is estimated; and sends other predistortion coefficients except for the first-order coefficient to the microwave transmitter, so that the microwave transmitter performs non-linearity predistortion on a transmitted signal.
Abstract translation: 本发明的实施例公开了一种微波预失真信号产生方法和装置。 微波接收机接收经过模数转换的第一接收信号; 对第一接收信号执行信道补偿，以获得第二接收信号; 根据第二接收信号估计第一发射信号，其中第一发射信号是数模转换之前微波发射机的发射信号; 根据第二接收信号和第一发送信号执行预失真系数计算; 通过使用通过预失真系数计算获得的一阶系数来执行在估计第一发送信号之前的第二接收信号上的线性失真补偿; 并将除一阶系数之外的其它预失真系数发送到微波发射机，使得微波发射机对发射信号执行非线性预失真。
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公开(公告)号：US09178825B2
公开(公告)日：2015-11-03
申请号：US14186960
申请日：2014-02-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hai Li , Huaping Shi , Yanzhao Pang , Christian Mazzucco , Sergio Bianchi , Xianfeng Li
IPC: H04L7/00 , H04L12/801 , H04L25/49 , H04L27/38
Abstract: The present invention relates to the field of communications technologies and discloses a data processing method and apparatus to obtain a DPD non-linear distortion compensation coefficient under a QPSK mode. The embodiments of the present invention receive a first data flow, and perform interpolation into the first data flow to obtain a second data flow; receive a third data flow, and calculate a data flow signal quality difference between the third data flow and the second data flow; and obtain a DPD non-linear distortion compensation coefficient according to the data flow signal quality difference and the third data flow or the second data flow. The embodiments of the present invention are applicable to the scenarios of obtaining a DPD non-linear distortion compensation coefficient in QPSK mode.
Abstract translation: 本发明涉及通信技术领域，并公开了一种在QPSK模式下获得DPD非线性失真补偿系数的数据处理方法和装置。 本发明的实施例接收第一数据流，并对第一数据流执行内插以获得第二数据流; 接收第三数据流，并计算第三数据流和第二数据流之间的数据流信号质量差; 并根据数据流信号质量差和第三数据流或第二数据流获得DPD非线性失真补偿系数。 本发明的实施例可应用于在QPSK模式中获得DPD非线性失真补偿系数的情况。
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