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公开(公告)号：US10778253B2
公开(公告)日：2020-09-15
申请号：US15965250
申请日：2018-04-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhiyu Xiao , Ling Liu , Liangchuan Li
Abstract: An embodiment method includes: performing balancing processing on a data stream that includes a plurality of sub-data stream segments, and performing segment de-interleaving on a data stream obtained after the balancing processing. The method further includes separately performing forward error correction (FEC) decoding on each sub-data stream segment in a data stream obtained after the segment de-interleaving. The method further includes performing, according to a balancing termination state of each sub-data stream segment obtained after previous balancing processing, balancing processing on each sub-data stream segment obtained after the FEC decoding, and performing FEC decoding on the data stream obtained after balancing processing is performed on each sub-data stream segment. When it is determined that a preset iteration termination condition is met, the method includes outputting the data stream obtained after the FEC decoding.
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2.发明申请公开(公告)号：US20190190692A1
公开(公告)日：2019-06-20
申请号：US16283619
申请日：2019-02-22
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ling Liu , Wentong Wan
Abstract: Embodiments of this application provide a method for obtaining a phase detection signal in a clock recovery circuit and a phase detector, configured to obtain a correct phase detection signal. A phase detector obtains sampling sequences sent by an analog to digital converter ADC, where the sampling sequences are obtained by the ADC by sampling, an electrical signal received by the ADC, and the electrical signal carries a pre-configured training sequence; the phase detector calculates a correlation between the sampling sequences and a comparison sequence, to determine a first location and a second location, where the first location and the second location are locations of a starting point of the training sequence in the sampling sequences; and the phase detector obtains a phase detection signal based on a difference parameter of the first location and the second location.
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3.发明申请Method for Sending and Receiving Signal, and Corresponding Device and System 审中-公开发送和接收信号的方法以及相应的设备和系统公开(公告)号：US20170012802A1
公开(公告)日：2017-01-12
申请号：US15270286
申请日：2016-09-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liangchuan Li , Ling Liu
IPC: H04L25/03
CPC classification number: H04L25/03012 , H04L25/03254 , H04L25/03261 , H04L25/03834
Abstract: A method for sending and receiving a signal is disclosed, and a corresponding device and system. The method includes performing constellation mapping on a data stream to obtain a mapped signal, and performing pre-filtering on the mapped signal to convert the mapped signal into a narrowband signal filtered signal. The pre-filtering is finite impulse response filtering. A bandwidth of the narrowband signal filtered signal is less than bandwidth of the mapped signal, and the narrowband signal filtered signal is a baud rate signal. The method also includes performing waveform forming according to the narrowband signal filtered signal to obtain a shaped signal, and performing digital-to-analog conversion on the shaped signal to convert a shaped second signal into an analog signal, and sending the analog signal.
Abstract translation: 公开了一种用于发送和接收信号的方法，以及相应的设备和系统。 该方法包括在数据流上执行星座映射以获得映射的信号，以及对所映射的信号执行预滤波以将映射的信号转换成窄带信号滤波的信号。 预滤波是有限脉冲响应滤波。 窄带信号滤波信号的带宽小于映射信号的带宽，窄带信号滤波信号是波特率信号。 该方法还包括根据窄带信号滤波信号执行波形形成以获得整形信号，并对成形信号执行数模转换，将形状的第二信号转换为模拟信号，并发送模拟信号。
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4.发明授权Method for sending and receiving signal, and corresponding device and system 有权发送和接收信号的方法，以及相应的设备和系统公开(公告)号：US09467311B2
公开(公告)日：2016-10-11
申请号：US15078717
申请日：2016-03-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liangchuan Li , Ling Liu
CPC classification number: H04L25/03012 , H04L25/03254 , H04L25/03261 , H04L25/03834
Abstract: A method for sending and receiving a signal is disclosed, and a corresponding device and system. The method includes performing constellation mapping on a data stream to obtain a mapped signal, and performing pre-filtering on the mapped signal to convert the mapped signal into a narrowband signal filtered signal. The pre-filtering is finite impulse response filtering. A bandwidth of the narrowband signal filtered signal is less than bandwidth of the mapped signal, and the narrowband signal filtered signal is a baud rate signal. The method also includes performing waveform forming according to the narrowband signal filtered signal to obtain a shaped signal, and performing digital-to-analog conversion on the shaped signal to convert a shaped second signal into an analog signal, and sending the analog signal.
Abstract translation: 公开了一种用于发送和接收信号的方法，以及相应的设备和系统。 该方法包括在数据流上执行星座映射以获得映射的信号，以及对所映射的信号执行预滤波以将映射的信号转换成窄带信号滤波的信号。 预滤波是有限脉冲响应滤波。 窄带信号滤波信号的带宽小于映射信号的带宽，窄带信号滤波信号是波特率信号。 该方法还包括根据窄带信号滤波信号执行波形形成以获得整形信号，并对成形信号执行数模转换，以将形状的第二信号转换为模拟信号，并发送模拟信号。
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公开(公告)号：US20160134449A1
公开(公告)日：2016-05-12
申请号：US14995855
申请日：2016-01-14
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ling Liu , Liangchuan Li
IPC: H04L27/00
CPC classification number: H04L27/0014 , H04B10/6165 , H04L27/3827 , H04L2027/0046 , H04L2027/0067 , H04L2027/0095
Abstract: The present invention provides a cycle-slip detection method and apparatus, and a receiver. If an absolute value of a first difference obtained by subtracting a phase of a first symbol in a kth training sequence cycle from a phase of a last symbol in a (k−1)th training sequence cycle in a received signal is greater than a cycle-slip determining threshold, it is determined that a cycle-slip occurs in the kth or (k−1)th training sequence cycle. Further, if a second difference obtained by subtracting a phase of the first symbol in the (k+1)th training sequence cycle from a phase of the last symbol in the kth training sequence cycle is greater than the cycle-slip determining threshold, and signs of the first difference and the second difference are opposite, it is determined that a cycle-slip occurs in all symbols in the kth training cycle.
Abstract translation: 本发明提供一种循环滑移检测方法和装置以及接收器。 如果通过从接收信号中的第（k-1）训练序列周期中的最后一个符号的相位减去第k个训练序列周期中的第一符号的相位获得的第一差的绝对值大于循环 确定在第k或第（k-1）训练序列周期中发生周期滑移。 此外，如果通过从第k个训练序列周期中的最后一个符号的相位减去第（k + 1）个训练序列周期中的第一符号的相位获得的第二差异大于循环滑移确定阈值， 第一差异和第二差异的符号相反，确定在第k个训练周期中的所有符号中出现周期滑移。
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Patent Agency Ranking
公开(公告)号：US20210273658A1
公开(公告)日：2021-09-02
申请号：US17322451
申请日：2021-05-17
Applicant: Huawei Technologies Co., Ltd.
Abstract: A method and an apparatus for encoding a polar code concatenated with a cyclic redundancy check (CRC), where M bits are selected from K bits in the sequence to perform CRC encoding. The M bits are determined based on reliability of K polarized subchannels on which the K bits are placed and/or row weights of K rows, in a first matrix, corresponding to the K polarized subchannels on which the K bits are placed. The first matrix is an encoding matrix of polar encoding. Polar encoding is performed on the K bits and obtained CRC check bits. An encoded codeword is output.
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公开(公告)号：US09906310B2
公开(公告)日：2018-02-27
申请号：US15338944
申请日：2016-10-31
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ling Liu , Liangchuan Li
CPC classification number: H04B10/6972 , H04J14/02 , H04J14/06 , H04L25/03299 , H04L25/03993
Abstract: Embodiments of the present invention provide a signal receiving method and a receiver. The signal receiving method includes: sequentially preprocessing a received first signal to obtain to-be-processed second signals; generating filtering coefficients for the second signals by converting colored noise of the second signals into white noise; and filtering the corresponding second signals according to the filtering coefficients. Filtering can be performed according to different channel conditions and transmission requirements, thereby improving system performance of the receiver.
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8.发明申请Method for Sending and Receiving Signal, and Corresponding Device and System 有权发送和接收信号的方法以及相应的设备和系统公开(公告)号：US20160204961A1
公开(公告)日：2016-07-14
申请号：US15078717
申请日：2016-03-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liangchuan Li , Ling Liu
IPC: H04L25/03
CPC classification number: H04L25/03012 , H04L25/03254 , H04L25/03261 , H04L25/03834
Abstract: A method for sending and receiving a signal is disclosed, and a corresponding device and system. The method includes performing constellation mapping on a data stream to obtain a mapped signal, and performing pre-filtering on the mapped signal to convert the mapped signal into a narrowband signal filtered signal. The pre-filtering is finite impulse response filtering. A bandwidth of the narrowband signal filtered signal is less than bandwidth of the mapped signal, and the narrowband signal filtered signal is a baud rate signal. The method also includes performing waveform forming according to the narrowband signal filtered signal to obtain a shaped signal, and performing digital-to-analog conversion on the shaped signal to convert a shaped second signal into an analog signal, and sending the analog signal.
Abstract translation: 公开了一种用于发送和接收信号的方法，以及相应的设备和系统。 该方法包括在数据流上执行星座映射以获得映射的信号，以及对所映射的信号执行预滤波以将映射的信号转换成窄带信号滤波的信号。 预滤波是有限脉冲响应滤波。 窄带信号滤波信号的带宽小于映射信号的带宽，窄带信号滤波信号是波特率信号。 该方法还包括根据窄带信号滤波信号执行波形形成以获得整形信号，并对成形信号执行数模转换，将形状的第二信号转换为模拟信号，并发送模拟信号。
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公开(公告)号：US09379820B2
公开(公告)日：2016-06-28
申请号：US13838288
申请日：2013-03-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yuanda Huang , Liangchuan Li , Ling Liu , Lei Liu
CPC classification number: H04B10/60 , H04B10/6161 , H04B10/6164 , H04L27/2657 , H04L27/2697
Abstract: The present invention relates to a method and a device. The method includes: mixing a multi-carrier optical signal with a local optical signal having the same center frequency as that of the multi-carrier optical signal; performing photoelectric conversion and analog-to-digital conversion on an optical signal obtained through the mixing to obtain a digital signal; performing FFT on the digital signal to obtain a frequency domain signal; grouping the frequency domain signal according to each frequency band corresponding to its respective carrier in the multi-carrier optical signal, and performing IFFT on each frequency domain signal group to obtain a corresponding time domain signal for each carrier; and performing data restoration on each time domain signal corresponding to its respective carrier to obtain data carried on each carrier. The solutions of the present invention only require one set of coherent reception device, and have low cost and low power consumption.
Abstract translation: 本发明涉及一种方法和装置。 该方法包括：将多载波光信号与具有与多载波光信号相同中心频率的本地光信号混合; 对通过混合获得的光信号执行光电转换和模数转换，以获得数字信号; 对数字信号执行FFT以获得频域信号; 根据多载波光信号中与其相应载波相对应的每个频带对频域信号进行分组，并对每个频域信号组执行IFFT，以获得每个载波的相应时域信号; 并对与其各自的载波相对应的每个时域信号执行数据恢复，以获得每个载波上承载的数据。 本发明的解决方案仅需要一组相干接收装置，并且具有低成本和低功耗。
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公开(公告)号：US08861981B2
公开(公告)日：2014-10-14
申请号：US13845575
申请日：2013-03-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ling Liu , Liangchuan Li
IPC: H04B10/06 , H04B10/2513 , H04B10/2543 , H04B10/61
CPC classification number: H04B10/6163 , H04B10/25133 , H04B10/2543 , H04B10/6161
Abstract: Embodiments of the present invention disclose an optical signal compensation device, where, a nonlinear compensation module in the optical signal compensation device adopts a new nonlinear compensation algorithm to perform nonlinear compensation on an optical signal, and during the process of performing the nonlinear compensation, it is no longer required to look up a table. Technical solutions provided in the embodiments of the present invention can effectively increase the processing speed of the nonlinear compensation, thereby reducing the overall processing delay of an optical signal compensation system.
Abstract translation: 本发明的实施例公开了一种光信号补偿装置，其中，光信号补偿装置中的非线性补偿模块采用新的非线性补偿算法对光信号执行非线性补偿，并且在执行非线性补偿的过程中 不再需要查找一张桌子。 在本发明的实施例中提供的技术方案可以有效地提高非线性补偿的处理速度，从而减少光信号补偿系统的整体处理延迟。
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