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公开(公告)号：US11075659B2
公开(公告)日：2021-07-27
申请号：US16991725
申请日：2020-08-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: This application provides a power adjustment method and apparatus. The method includes obtaining a to-be-output signal, performing first automatic gain control (AGC) processing on the to-be-output signal to obtain the to-be-output signal on which the first AGC processing is performed, and to obtain a gain value of the to-be-output signal. The method also includes performing digital pre-distortion (DPD) processing on the to-be-output signal on which the first AGC processing is performed, to obtain the to-be-output signal on which the DPD processing is performed. The method further includes calculating an output power back-off (OBO) value based on the gain value, adjusting, based on the OBO value, output power of the to-be-output signal on which the DPD processing is performed, and sending, to a signal receive end, the to-be-output signal on which the power adjustment is performed.
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公开(公告)号：US20180249466A1
公开(公告)日：2018-08-30
申请号：US15964979
申请日：2018-04-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meng Cai , Hongli Jiang , Kun Li
IPC: H04W72/04
Abstract: Embodiments of the present invention provide a data sending and receiving method, an apparatus, and a system. The method can be executed by a microwave device, which includes: obtaining a control word (CW) and a first antenna-carrier (A×C) from a common public radio interface (CPRI) frame; modulating the CW to obtain in-phase/quadrature (I/Q) data of the CW; determining a first timeslot in which the first A×C does not carry antenna-carrier I/Q data; writing a preset synchronization sequence, first information, and a random number in the first timeslot to generate a second A×C; and combining the second A×C with the I/Q data of the CW to generate a microwave air interface frame, and sending the microwave air interface frame in a time division multiplexing manner.
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公开(公告)号：US20160112179A1
公开(公告)日：2016-04-21
申请号：US14983841
申请日：2015-12-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meng Cai , Huaping Qing , Yu Liu , Hongli Jiang , Qiao Liu
CPC classification number: H04L5/14 , H04L5/0048 , H04L7/0033 , H04L25/0226
Abstract: The present invention discloses an information processing method and apparatus, including: obtaining a local to-be-transmitted signal by using a local transmitter, and inserting first pilots and second pilots, where the first pilots are inserted from a first position of the local to-be-transmitted signal, the second pilots are inserted from a second position of the local to-be-transmitted signal; obtaining a local transmit signal; obtaining a peer transmit signal, where the peer transmit signal is sent after third pilots and fourth pilots are inserted, the third pilots are inserted from a third position of the peer transmit signal, the fourth pilots are inserted from a fourth position of the peer transmit signal, the first pilot is orthogonal to the fourth pilot, and the second pilot is orthogonal to the third pilot; and parsing the local transmit signal and the peer transmit signal by using the local receiver.
Abstract translation: 本发明公开了一种信息处理方法和装置，包括：通过使用本地发射机获得本地发送信号，并插入第一导频和第二导频，其中第一导频从本地的第一位置插入到 所述第二导频从所述本地待发射信号的第二位置插入; 获得本地发送信号; 获取对等体发送信号，其中在第三导频和第四导频插入之后发送对等体发射信号，从对等体发射信号的第三位置插入第三导频，从对等体传输的第四位置插入第四导频 信号，第一导频与第四导频正交，第二导频与第三导频正交; 以及通过使用本地接收机解析本地发送信号和对等体发送信号。
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4.发明申请METHOD AND DEVICE FOR SIGNAL PROCESSING AND APPLIED TO MICROWAVE COMMUNICATION SYSTEM 有权用于信号处理和应用于微波通信系统的方法和装置公开(公告)号：US20130202022A1
公开(公告)日：2013-08-08
申请号：US13728876
申请日：2012-12-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meng Cai
IPC: H04L27/01
CPC classification number: H04L27/01 , H04L7/0058 , H04L7/033 , H04L25/0204 , H04L25/0242 , H04L25/03019 , H04L25/03273 , H04L2025/03426 , H04L2025/03611 , H04L2027/0038 , H04L2027/0065
Abstract: A method and a device which are for signal processing and are applied to a microwave communication system are disclosed. The method includes: performing equalization processing on each input signal by using an equalizer so as to obtain an equalized signal corresponding to the each input signal; performing phase estimation on phase noise in the equalized signal to obtain an estimated phase of the phase noise; performing phase rotation on the equalized signal to offset the estimated phase of the phase noise, so as to obtain a phase rotation signal; suppressing residual phase noise in the phase rotation signal by using a phase-locked loop so as to output an error signal and a received signal; and performing an iterative update on a filter coefficient of the equalizer by using the error signal.
Abstract translation: 公开了一种用于信号处理并应用于微波通信系统的方法和装置。 该方法包括：通过使用均衡器对每个输入信号执行均衡处理，以获得对应于每个输入信号的均衡信号; 对均衡信号中的相位噪声执行相位估计，以获得相位噪声的估计相位; 在均衡信号上执行相位旋转以偏移相位噪声的估计相位，以获得相位旋转信号; 通过使用锁相环来抑制相位旋转信号中的残留相位噪声，以输出误差信号和接收信号; 以及通过使用误差信号对均衡器的滤波器系数执行迭代更新。
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公开(公告)号：US10582495B2
公开(公告)日：2020-03-03
申请号：US15964979
申请日：2018-04-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meng Cai , Hongli Jiang , Kun Li
Abstract: Embodiments of the present invention provide a data sending and receiving method, an apparatus, and a system. The method can be executed by a microwave device, which includes: obtaining a control word (CW) and a first antenna-carrier (A×C) from a common public radio interface (CPRI) frame; modulating the CW to obtain in-phase/quadrature (I/Q) data of the CW; determining a first timeslot in which the first A×C does not carry antenna-carrier I/Q data; writing a preset synchronization sequence, first information, and a random number in the first timeslot to generate a second A×C; and combining the second A×C with the I/Q data of the CW to generate a microwave air interface frame, and sending the microwave air interface frame in a time division multiplexing manner.
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Patent Agency Ranking
公开(公告)号：US20180124640A1
公开(公告)日：2018-05-03
申请号：US15859018
申请日：2017-12-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hongli Jiang , Meng Cai , Kun Li
CPC classification number: H04W28/06 , H04L5/0007 , H04L5/0048 , H04W16/14 , H04W28/0247 , H04W48/12 , H04W72/0453 , H04W88/085
Abstract: The present disclosure discloses a digital fronthaul data transmission method, device, and system, which relate to the communications field and improve system performance of a distributed base station. A specific solution is: a first microwave device receives digital fronthaul data; obtains common information and radio signal information from the digital fronthaul data; performs digital QAM on the common information to obtain I/Q data of the common information; generates a microwave air interface frame in a time division multiplexing manner based on the radio signal information and the I/Q data of the common information, where the radio signal information and the I/Q data of the common information are encapsulated in a payload area of the microwave air interface frame, and a pilot in a microwave overhead and the payload area are arranged at a preset interval in an interleaved manner; and sends the microwave air interface frame.
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公开(公告)号：US09887829B2
公开(公告)日：2018-02-06
申请号：US14983841
申请日：2015-12-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meng Cai , Huaping Qing , Yu Liu , Hongli Jiang , Qiao Liu
CPC classification number: H04L5/14 , H04L5/0048 , H04L7/0033 , H04L25/0226
Abstract: The present invention discloses an information processing method and apparatus, including: obtaining a local to-be-transmitted signal by using a local transmitter, and inserting first pilots and second pilots, where the first pilots are inserted from a first position of the local to-be-transmitted signal, the second pilots are inserted from a second position of the local to-be-transmitted signal; obtaining a local transmit signal; obtaining a peer transmit signal, where the peer transmit signal is sent after third pilots and fourth pilots are inserted, the third pilots are inserted from a third position of the peer transmit signal, the fourth pilots are inserted from a fourth position of the peer transmit signal, the first pilot is orthogonal to the fourth pilot, and the second pilot is orthogonal to the third pilot; and parsing the local transmit signal and the peer transmit signal by using the local receiver.
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公开(公告)号：US09525572B2
公开(公告)日：2016-12-20
申请号：US14626461
申请日：2015-02-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qi An , Yating Liu , Meng Cai
CPC classification number: H04L25/03057 , H04L1/02 , H04L1/20 , H04L25/03 , H04L27/36 , H04L2027/0024
Abstract: The present invention discloses a signal correction method and a receiving machine, pertaining to the radio communication field. The method includes: acquiring M channels of first signals; performing adaptive processing for each channel of first signals among the M channels of first signals to output M channels of first correction signals; making a decree according to the M channels of first correction signals to obtain M channels of decree results; using a decree result with a same value and with a largest quantity among the M channels of decree results as a feedback signal; receiving M channels of second signals; and separately performing adaptive processing, according to the feedback signal, for each channel of second signals among M channels of second signals to output M channels of second correction signals.
Abstract translation: 本发明公开了一种无线电通信领域的信号校正方法和接收机。 该方法包括：获取M个信道的第一信号; 对所述第一信号的M个通道中的第一信号的每个信道进行自适应处理，以输出第一校正信号的M个信道; 根据M个通道的第一个校正信号作出判定，以获得M个通道的判定结果; 使用具有相同值并且在M个通道中的最大数量的判定结果作为反馈信号; 接收M个通道的第二个信号; 以及根据所述反馈信号分别对M个信道中的第二信号的每个信道的第二信号进行自适应处理，以输出第二校正信号的M个信道。
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公开(公告)号：US20150207649A1
公开(公告)日：2015-07-23
申请号：US14671810
申请日：2015-03-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dongyuan Shi , Dongmei He , Meng Cai
IPC: H04L25/03
CPC classification number: H04L25/03057 , H03H21/0012 , H03H2021/0041 , H03H2021/007 , H04L25/03 , H04L25/03019 , H04L25/03146 , H04L2025/03617 , H04L2025/03636
Abstract: The present invention discloses an adaptive filtering method and system based on an error sub-band. The present invention includes performing analysis filtering processing on an error signal and an input signal to obtain an error sub-band signal and an input sub-band signal respectively; and performing calculation according to the input sub-band signal and the error sub-band signal to obtain a new adaptive filtering weight, and updating a weight in an adaptive filter.
Abstract translation: 本发明公开了一种基于误差子带的自适应滤波方法和系统。 本发明包括对误差信号和输入信号执行分析滤波处理，以分别获得误差子带信号和输入子带信号; 并根据输入的子带信号和误差子带信号进行计算，得到新的自适应滤波权重，并更新自适应滤波器中的权重。
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10.发明授权Method and device for signal processing and applied to microwave communication system 有权信号处理方法和装置，应用于微波通信系统公开(公告)号：US08798128B2
公开(公告)日：2014-08-05
申请号：US13728876
申请日：2012-12-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Meng Cai
CPC classification number: H04L27/01 , H04L7/0058 , H04L7/033 , H04L25/0204 , H04L25/0242 , H04L25/03019 , H04L25/03273 , H04L2025/03426 , H04L2025/03611 , H04L2027/0038 , H04L2027/0065
Abstract: A method and a device which are for signal processing and are applied to a microwave communication system are disclosed. The method includes: performing equalization processing on each input signal by using an equalizer so as to obtain an equalized signal corresponding to the each input signal; performing phase estimation on phase noise in the equalized signal to obtain an estimated phase of the phase noise; performing phase rotation on the equalized signal to offset the estimated phase of the phase noise, so as to obtain a phase rotation signal; suppressing residual phase noise in the phase rotation signal by using a phase-locked loop so as to output an error signal and a received signal; and performing an iterative update on a filter coefficient of the equalizer by using the error signal.
Abstract translation: 公开了一种用于信号处理并应用于微波通信系统的方法和装置。 该方法包括：通过使用均衡器对每个输入信号执行均衡处理，以获得对应于每个输入信号的均衡信号; 对均衡信号中的相位噪声执行相位估计，以获得相位噪声的估计相位; 在均衡信号上执行相位旋转以偏移相位噪声的估计相位，以获得相位旋转信号; 通过使用锁相环来抑制相位旋转信号中的残留相位噪声，以输出误差信号和接收信号; 以及通过使用误差信号对均衡器的滤波器系数执行迭代更新。
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