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公开(公告)号：US10277315B2
公开(公告)日：2019-04-30
申请号：US15262632
申请日：2016-09-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04B10/079 , H04J14/02 , H04B10/548
Abstract: A method and an apparatus for monitoring a wavelength channel are disclosed. The method includes: performing optical-to-electrical detection on an optical signal on a wavelength channel, to obtain an electrical signal; obtaining a frequency spectrum of the electrical signal; determining a first parameter M according to an equation M=NAC, where NAC represents an alternating current component of the frequency spectrum of the electrical signal; and if M is greater than a preset first threshold, determining that the wavelength channel includes a real service signal. According to the method and apparatus, an erroneous configuration or operation of a network management system can be avoided.
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2.发明授权公开(公告)号：US09941969B2
公开(公告)日：2018-04-10
申请号：US15282697
申请日：2016-09-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Juan Wang , Ning Deng , Xiaodong Luo , Zhiyong Feng
IPC: H04B10/04 , H04B10/50 , H04B10/079 , H04B10/54
CPC classification number: H04B10/5057 , H04B10/0795 , H04B10/541 , H04B2210/075
Abstract: A transmitter includes a pilot loading apparatus, an optical modulator, and a pilot locking apparatus. The pilot locking apparatus is configured to determine a pilot operating point that is currently on a response curve and that is of the optical modulator, and a target initial amplitude of an electrical pilot signal. The pilot locking apparatus is further configured to control the pilot loading apparatus to adjust an initial amplitude of the electrical pilot signal to the target initial amplitude.
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3.发明授权公开(公告)号：US09621263B2
公开(公告)日：2017-04-11
申请号：US14493540
申请日：2014-09-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yijia Wei , Juan Ni , Zhiyong Feng , Ning Deng
IPC: H04B10/079 , H04B10/077
CPC classification number: H04B10/07953 , H04B10/0775 , H04B2210/075
Abstract: The present invention discloses a method and an apparatus for detecting an optical signal-to-noise ratio, a node device, and a network system. The method includes: receiving a detected optical signal carrying amplified spontaneous emission ASE noise; detecting a first alternating current component and a first direct current component of the detected optical signal; acquiring first modulation information of the detected optical signal; acquiring first correction information corresponding to the first modulation information according to the first modulation information; and determining an optical signal-to-noise ratio OSNR of the detected optical signal according to the first alternating current component, the first direct current component, and the first correction information.
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公开(公告)号：US20230179318A1
公开(公告)日：2023-06-08
申请号：US18161134
申请日：2023-01-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ning Deng , Wei Jia , Liangjia Zong
CPC classification number: H04J14/0212 , H04J14/0221 , H04Q11/0005 , H04Q2011/0016
Abstract: A WSS is provided. The WSS includes a first common port, a second common port, a grating, a spatial light modulator, and a plurality of branch ports. The first common port is configured to receive a first-band optical signal, and the second common port is configured to receive a second-band optical signal. The grating is configured to perform wavelength demultiplexing on the first-band optical signal and the second-band optical signal, to output a plurality of first optical signals, where the first optical signals are optical signals of a single wavelength.
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公开(公告)号：US11316591B2
公开(公告)日：2022-04-26
申请号：US17150661
申请日：2021-01-15
Applicant: Huawei Technologies Co., Ltd.
IPC: H04B10/572 , H04B10/077 , H04B10/079 , H04B10/50 , H04B10/548
Abstract: A frequency offset processing method, apparatus, and a storage medium, where the method includes: determining a frequency offset of a preset channel in a wavelength selective switch (WSS); determining a correspondence between a frequency offset and a wavelength or a correspondence between a frequency offset and a pixel position based on the frequency offset of the preset channel; and determining a frequency offset of a traffic channel according to the determined correspondence.
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Patent Agency Ranking
公开(公告)号：US20180198550A1
公开(公告)日：2018-07-12
申请号：US15914716
申请日：2018-03-07
Applicant: Huawei Technologies Co., Ltd.
IPC: H04J14/02 , H04Q11/00 , H04B10/2581 , H04B10/275
CPC classification number: H04J14/0205 , H04B10/2581 , H04B10/275 , H04J14/0212 , H04J14/0213 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0009
Abstract: A node in a wavelength division multiplexing (WDM) system is provided, which includes: a colorless optical transmitter, a first arrayed waveguide grating, a first waveband filter configured to divide an input optical signal into M sub-signals of different wavebands and output to a first optical switch, and a first optical coupler/a first optical combiner. A transmit end of the colorless optical transmitter is coupled to an input end of the first waveband filter via the first arrayed waveguide grating. The first optical switch is configured to connect an output end of the first waveband filter to an input end of the first optical coupler/the first optical combiner according to a control signal. An output end of the first optical coupler/the first optical combiner is coupled to an optical transmission path.
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7.发明申请Method for Controlling Modulation Depth of Pilot Signal, Transmitter, and Pilot Locking Apparatus 有权控制导频信号，发射机和先导锁定装置调制深度的方法公开(公告)号：US20170026132A1
公开(公告)日：2017-01-26
申请号：US15282697
申请日：2016-09-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Juan Wang , Ning Deng , Xiaodong Luo , Zhiyong Feng
IPC: H04B10/50 , H04B10/54 , H04B10/079
CPC classification number: H04B10/5057 , H04B10/0795 , H04B10/541 , H04B2210/075
Abstract: A transmitter includes a pilot loading apparatus, an optical modulator, and a pilot locking apparatus. The pilot locking apparatus is configured to determine a pilot operating point that is currently on a response curve and that is of the optical modulator, and a target initial amplitude of an electrical pilot signal. The pilot locking apparatus is further configured to control the pilot loading apparatus to adjust an initial amplitude of the electrical pilot signal to the target initial amplitude.
Abstract translation: 发射机包括导频加载装置，光调制器和导频锁定装置。 导频锁定装置被配置为确定当前在响应曲线上并且是光调制器的导频工作点和电导频信号的目标初始幅度。 导频锁定装置还被配置为控制导频加载装置将电导频信号的初始幅度调整到目标初始振幅。
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公开(公告)号：US20240137675A1
公开(公告)日：2024-04-25
申请号：US18544932
申请日：2023-12-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zeshan Chang , Tianhai Chang , Ning Deng
IPC: H04Q11/00
CPC classification number: H04Q11/0062 , H04Q11/0005 , H04Q2011/0032 , H04Q2011/0073
Abstract: A communication system, a transmitter, and a communication method. The communication system includes M transmitters, N receivers, and an optical switch network. Both N and M are positive integers greater than 1. The optical switch network includes one or more optical switches. A plurality of optical paths are configured in the optical switch network. When the transmitter communicates with the receiver, the transmitter can determine, from the plurality of optical paths, a target optical path from a source communication node to a destination communication node. After the optical switch network receives a target optical signal sent by the transmitter, the optical switch directly sends the target optical signal to the receiver based on the target optical path.
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公开(公告)号：US20210135763A1
公开(公告)日：2021-05-06
申请号：US17150661
申请日：2021-01-15
Applicant: Huawei Technologies Co., Ltd.
IPC: H04B10/572 , H04B10/079 , H04B10/548 , H04B10/50 , H04B10/077
Abstract: A frequency offset processing method, apparatus, and a storage medium, where the method includes: determining a frequency offset of a preset channel in a wavelength selective switch (WSS); determining a correspondence between a frequency offset and a wavelength or a correspondence between a frequency offset and a pixel position based on the frequency offset of the preset channel; and determining a frequency offset of a traffic channel according to the determined correspondence.
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公开(公告)号：US10085078B2
公开(公告)日：2018-09-25
申请号：US14541950
申请日：2014-11-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ning Deng , Maarten P. J. Vissers , Xiaozhong Shi
CPC classification number: H04Q11/0071 , H04J3/1658 , H04J2203/0085 , H04Q11/0066 , H04Q2011/0086
Abstract: Embodiments of the present invention provide a data processing method, related device, and system for an optical transport network. The data processing method for the optical transport network includes: encapsulating service data into an optical payload unit; mapping the optical payload unit to an optical channel data unit; mapping the optical channel data unit to a payload area of an optical burst transport unit; performing electrical-optical conversion on the optical burst transport unit to form an optical burst transport unit; carrying the optical burst transport unit onto an optical timeslot of an optical burst channel; and transmitting the optical burst channel to a line. Technical solutions provided by the present invention can effectively simplify a data processing process and reduce a data processing delay.
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