专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10778253B2 Data processing method and apparatus 有权
公开(公告)号：US10778253B2
公开(公告)日：2020-09-15
申请号：US15965250
申请日：2018-04-27
申请人： Huawei Technologies Co., Ltd.
发明人： Zhiyu Xiao , Ling Liu , Liangchuan Li
IPC分类号： H03M13/39 , H03M13/25 , H04L1/00 , H04L25/03 , H03M13/41 , H03M13/17 , H03M13/27
摘要： 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.

2. 发明申请

US20190190692A1 METHOD FOR OBTAINING PHASE DETECTION SIGNAL IN CLOCK RECOVERY CIRCUIT AND PHASE DETECTOR 审中-公开
公开(公告)号：US20190190692A1
公开(公告)日：2019-06-20
申请号：US16283619
申请日：2019-02-22
申请人： Huawei Technologies Co., Ltd.
发明人： Ling Liu , Wentong Wan
IPC分类号： H04L7/00 , H04L7/033
摘要： 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.

3. 发明申请

US20170012802A1 Method for Sending and Receiving Signal, and Corresponding Device and System 审中-公开
标题翻译：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
申请人： Huawei Technologies Co., Ltd.
发明人： Liangchuan Li , Ling Liu
IPC分类号： H04L25/03
CPC分类号： H04L25/03012 , H04L25/03254 , H04L25/03261 , H04L25/03834
摘要： 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.
摘要翻译：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。

4. 发明授权

US09467311B2 Method for sending and receiving signal, and corresponding device and system 有权
标题翻译：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
申请人： Huawei Technologies Co., Ltd.
发明人： Liangchuan Li , Ling Liu
IPC分类号： H03H7/30 , H04L25/03
CPC分类号： H04L25/03012 , H04L25/03254 , H04L25/03261 , H04L25/03834
摘要： 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.
摘要翻译：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。

5. 发明申请

US20160134449A1 CYCLE-SLIP DETECTION METHOD AND APPARATUS, AND RECEIVER 有权
标题翻译：循环滑移检测方法和装置，以及接收器
公开(公告)号：US20160134449A1
公开(公告)日：2016-05-12
申请号：US14995855
申请日：2016-01-14
申请人： Huawei Technologies Co., Ltd.
发明人： Ling Liu , Liangchuan Li
IPC分类号： H04L27/00
CPC分类号： H04L27/0014 , H04B10/6165 , H04L27/3827 , H04L2027/0046 , H04L2027/0067 , H04L2027/0095
摘要： 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.
摘要翻译：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。

6. 发明授权

US09521022B2 Cycle-slip detection method and apparatus, and receiver 有权
标题翻译：循环滑移检测方法和装置以及接收机
公开(公告)号：US09521022B2
公开(公告)日：2016-12-13
申请号：US14995855
申请日：2016-01-14
申请人： Huawei Technologies Co., Ltd.
发明人： Ling Liu , Liangchuan Li
IPC分类号： H04L27/00 , H04B10/61 , H04L27/38
CPC分类号： H04L27/0014 , H04B10/6165 , H04L27/3827 , H04L2027/0046 , H04L2027/0067 , H04L2027/0095
摘要： 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.
摘要翻译：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。

7. 发明授权

US08995831B2 Method and apparatus for processing optical signals 有权
标题翻译：光信号处理方法和装置
公开(公告)号：US08995831B2
公开(公告)日：2015-03-31
申请号：US13664134
申请日：2012-10-30
申请人： Huawei Technologies Co., Ltd.
发明人： Liangchuan Li , Ling Liu
IPC分类号： H04J14/00 , H04J14/06 , H04B10/00 , H04B10/12 , H04B10/06 , H04B10/2507
CPC分类号： H04B10/2572
摘要： A method for processing optical signals includes performing frequency mixing, photoelectric detection, analog/digital conversion, and dispersion compensation on received input optical signals. First-path polarization multiplexing optical signals and second-path polarization multiplexing optical signals. An initialization update process is performed on filter coefficients. Polarization compensation is performed on the first-path polarization multiplexing optical signals and the second-path polarization multiplexing optical signals by using the filter coefficients on which the initialization update is performed to obtain initialized x-path optical signals and initialized y-path optical signals. Preset x-path training sequences and y-path training sequences are synchronized by using the initialized x-path optical signals and the initialized y-path optical signals. If a synchronization result indicates that polarization cross occurs, the polarization cross is rectified.
摘要翻译：一种处理光信号的方法包括对接收到的输入光信号执行频率混合，光电检测，模/数转换和色散补偿。第一路径偏振复用光信号和第二路径偏振复用光信号。对滤波器系数执行初始化更新处理。通过使用执行初始化更新的滤波器系数来获得初始化的x路光信号和初始化的y路光信号，对第一路径偏振多路复用光信号和第二路径偏振复用光信号进行极化补偿。通过使用初始化的x路径光信号和初始化的y路径光信号来同步预置x路径训练序列和y路径训练序列。如果同步结果表明发生极化交叉，则会纠正极化交叉。

8. 发明申请

US20140093255A1 OPTICAL SIGNAL COMPENSATION DEVICE 有权
标题翻译：光信号补偿装置
公开(公告)号：US20140093255A1
公开(公告)日：2014-04-03
申请号：US13845575
申请日：2013-03-18
申请人： Huawei Technologies Co., Ltd.
发明人： Ling Liu , Liangchuan Li
IPC分类号： H04B10/61
CPC分类号： H04B10/6163 , H04B10/25133 , H04B10/2543 , H04B10/6161
摘要： 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.
摘要翻译：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。

9. 发明申请

US20130058649A1 METHOD AND APPARATUS FOR PROCESSING OPTICAL SIGNALS 有权
标题翻译：用于处理光信号的方法和装置
公开(公告)号：US20130058649A1
公开(公告)日：2013-03-07
申请号：US13664134
申请日：2012-10-30
申请人： Huawei Technologies Co., Ltd.
发明人： Liangchuan Li , Ling Liu
IPC分类号： H04J14/00
CPC分类号： H04B10/2572
摘要： A method for processing optical signals includes performing frequency mixing, photoelectric detection, analog/digital conversion, and dispersion compensation on received input optical signals. First-path polarization multiplexing optical signals and second-path polarization multiplexing optical signals. An initialization update process is performed on filter coefficients. Polarization compensation is performed on the first-path polarization multiplexing optical signals and the second-path polarization multiplexing optical signals by using the filter coefficients on which the initialization update is performed to obtain initialized x-path optical signals and initialized y-path optical signals. Preset x-path training sequences and y-path training sequences are synchronized by using the initialized x-path optical signals and the initialized y-path optical signals. If a synchronization result indicates that polarization cross occurs, the polarization cross is rectified.
摘要翻译：一种处理光信号的方法包括对接收到的输入光信号执行频率混合，光电检测，模/数转换和色散补偿。第一路径偏振复用光信号和第二路径偏振复用光信号。对滤波器系数执行初始化更新处理。通过使用执行初始化更新的滤波器系数来获得初始化的x路光信号和初始化的y路光信号，对第一路径偏振多路复用光信号和第二路径偏振复用光信号进行极化补偿。通过使用初始化的x路径光信号和初始化的y路径光信号来同步预置x路径训练序列和y路径训练序列。如果同步结果表明发生极化交叉，则会纠正极化交叉。

10. 发明授权

US11082135B2 Apparatus and method for processing a digital signal in a frequency domain linear equalizer 有权
公开(公告)号：US11082135B2
公开(公告)日：2021-08-03
申请号：US16230891
申请日：2018-12-21
申请人： Huawei Technologies Co., Ltd.
发明人： Michael Zarubinsky , Doron Cohen , Qingsong Xue , Dori Gidron , Ling Liu , Changsong Xie , Liangchuan Li , Ming Chen
IPC分类号： H04B10/69 , H04L25/03 , H04B7/0413 , H04L27/26
摘要： The present disclosure relates to an apparatus and method of processing a digital signal, wherein an input signal is transformed into the frequency domain by applying a fast Fourier transformation (FFT) processing to obtain a transformed input signal. Positive and negative frequency components of the transformed input signal are separated and respective ones of the separated positive and negative frequency components are separately processed by respective digital filtering to obtain filtered frequency components. The filtered frequency components are combined in the frequency domain using a down-sampling operation for down-sampling the filtered frequency components from an input number of samples per symbol to a different output number of samples per symbol, and the combined output components are converted into the time domain by applying an IFFT processing.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式