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公开(公告)号：US10812182B2
公开(公告)日：2020-10-20
申请号：US15939269
申请日：2018-03-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dawei Wang
IPC: H04B10/07 , H04B10/079 , H04J14/00 , H04Q11/00
Abstract: An optical signal measurement method includes: measuring a power pi of a first optical signal on a target frequency band at a moment Ti, and measuring a power qi of a second optical signal on the target frequency band at a moment Ti+Δt, where the first optical signal is a signal detected in an optical signal transmission source, the second optical signal is a signal detected on a to-be-measured node, and Δt is a transmission duration of transmitting an optical signal from the optical signal transmission source to the to-be-measured node. The method further includes determining an optical signal-to-noise ratio on the to-be-measured node based on a power array P=[p1, pN] of the first optical signal on the target frequency band and a power array Q=[q1, qN] of the second optical signal on the target frequency band.
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2.发明申请公开(公告)号：US20180248618A1
公开(公告)日：2018-08-30
申请号：US15967267
申请日：2018-04-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhaohui Li , Yuli Chen , Dawei Wang
IPC: H04B10/079 , H04B10/2513 , H04J14/06
CPC classification number: H04B10/07951 , H04B10/0775 , H04B10/2513 , H04J14/06
Abstract: The present disclosure discloses a method and an apparatus for monitoring chromatic dispersion in an optical communications network. The method includes: performing coherent mixing of a to-be-monitored signal with a first optical signal and a second optical signal to obtain two analog electrical signals, where center frequencies of the first optical signal and the second optical signal are located on two sides of a center frequency of the to-be-monitored signal, and a difference between the center frequencies of these two optical signals equals a Baud rate; converting the two analog electrical signals into two corresponding first time domain power signals; determining a value of a time delay between these two time domain power signals; and obtaining, according to a correspondence between the value of the time delay and the chromatic dispersion, the fiber chromatic dispersion generated in a process of transmitting the to-be-monitored signal.
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公开(公告)号：US12143303B2
公开(公告)日：2024-11-12
申请号：US17562668
申请日：2021-12-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dawei Wang , Jingqing Liu
Abstract: This application discloses a traffic sending method and apparatus, and the method includes: A first network device receives first traffic comprising first attribute information, wherein the first attribute information identifies a first traffic type of the first traffic; when a first link from the first network device to a second network device is congested, the first network device adjusts a first cost corresponding to the first traffic type to a second cost, wherein the first link is used to forward the first traffic when the cost corresponding to the first traffic is the first cost; and the first network device sends the first traffic to a third network device via a second link from the first network device to the third network device. In this way, ensuring that all traffic in the network can be effectively forwarded, and improving a traffic forwarding rate.
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4.发明授权公开(公告)号：US10484088B2
公开(公告)日：2019-11-19
申请号：US15277802
申请日：2016-09-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhaohui Li , Jianping Li , Dawei Wang
IPC: H04B10/079 , H04B10/50 , H04B10/61
Abstract: The present invention discloses an apparatus. The apparatus includes: a coherent receiving unit, configured to perform coherent synthesis on a received to-be-detected optical signal and a multi-wavelength local oscillation laser beam, and convert a coherent receiving signal formed by means of the coherent synthesis into an analog electrical signal; a data acquiring unit, configured to acquire the analog electrical signal output by the coherent receiving unit, and convert the analog electrical signal into a digital signal; a power spectrum generation unit, configured to process the digital signal output by the data acquiring unit, to generate a continuous full power spectrum of the to-be-detected optical signal; and an optical performance parameter monitoring unit, configured to monitor, according to the continuous full power spectrum generated by the power spectrum generation unit, an optical performance parameter of a transmission link carrying the to-be-detected optical signal.
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公开(公告)号：US20170033866A1
公开(公告)日：2017-02-02
申请号：US15295203
申请日：2016-10-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dawei Wang , Huixiao Ma
IPC: H04B10/079 , H04B10/077
CPC classification number: H04B10/07953 , H04B10/077 , H04B10/0775
Abstract: A method and an apparatus for monitoring an optical signal-to-noise ratio (OSNR) is provided. The method includes coupling a to-be-tested signal with a particular noise signal, to obtain a composite signal, where the particular noise signal is a noise signal that makes an OSNR of a signal of a to-be-tested channel in the composite signal be within a preset OSNR range. The method also includes determining an OSNR of the signal of the to-be-tested channel in the to-be-tested signal according to an optical spectrum of the composite signal and a power of the particular noise signal.
Abstract translation: 提供了一种用于监测光信噪比（OSNR）的方法和装置。 该方法包括将待测试信号与特定噪声信号耦合以获得复合信号，其中特定噪声信号是使复合信号中被测试信道的信号的OSNR成为噪声信号 信号在预设的OSNR范围内。 该方法还包括根据复合信号的光谱和特定噪声信号的功率来确定被测试信号中被测试信道的信号的OSNR。
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Patent Agency Ranking
公开(公告)号：US20230188640A1
公开(公告)日：2023-06-15
申请号：US17922250
申请日：2021-04-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dawei Wang , Jiejing Huang
IPC: H04M1/72454 , G09G5/10 , G06F3/044 , H04W52/02 , G06V40/16
CPC classification number: H04M1/72454 , G09G5/10 , G06F3/044 , H04W52/027 , G06V40/161 , H04M2250/12 , H04M2250/52 , G09G2360/144 , G09G2354/00
Abstract: This application discloses a display control method and an apparatus. The method is applied to a mobile terminal, the mobile terminal includes a display, the mobile terminal is connected to an external device, and the method includes: when the mobile terminal is on a voice call by using the external device, determining that the mobile terminal is in a handheld state or a non-handheld state; and when the mobile terminal is in the handheld state, controlling the display to be in a screen-on state; or when the mobile terminal is in the non-handheld state, controlling the display to be in a screen-off state. When the mobile terminal is on the voice call by using the external device, a display control solution is intelligently selected by determining that the mobile terminal is in the handheld state or the non-handheld state.
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7.发明授权公开(公告)号：US10263697B2
公开(公告)日：2019-04-16
申请号：US15967267
申请日：2018-04-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhaohui Li , Yuli Chen , Dawei Wang
IPC: H04B10/61 , H04B10/077 , H04B10/079 , H04B10/2513
Abstract: The present disclosure discloses a method and an apparatus for monitoring chromatic dispersion in an optical communications network. The method includes: performing coherent mixing of a to-be-monitored signal with a first optical signal and a second optical signal to obtain two analog electrical signals, where center frequencies of the first optical signal and the second optical signal are located on two sides of a center frequency of the to-be-monitored signal, and a difference between the center frequencies of these two optical signals equals a Baud rate; converting the two analog electrical signals into two corresponding first time domain power signals; determining a value of a time delay between these two time domain power signals; and obtaining, according to a correspondence between the value of the time delay and the chromatic dispersion, the fiber chromatic dispersion generated in a process of transmitting the to-be-monitored signal.
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8.发明授权公开(公告)号：US10110313B2
公开(公告)日：2018-10-23
申请号：US15470633
申请日：2017-03-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dawei Wang
IPC: H04J14/00 , H04B10/50 , H04B10/2575 , H04B10/532 , H04Q11/00 , H04B10/556 , H04B10/67 , H04B10/516 , H04B10/54
Abstract: The present invention discloses an optical switching apparatus, an optical cross-connect node, and an optical signal switching method. The optical switching apparatus includes: N input ports, N OAM modulators in a one-to-one correspondence with the N input ports, an OAM splitter, and M output ports, where the M output ports are in a one-to-one correspondence with M OAM modes; a first input port of the input ports is configured to input a first optical signal, a target output port of the first optical signal is a first output port; a first OAM modulator corresponding to the first input port modulates the first optical signal into an optical signal of a first OAM mode corresponding to the first output port; the OAM splitter transmits, to the first output port, the first optical signal received from the first OAM modulator; and the first output port outputs the first optical signal.
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公开(公告)号：US20180035182A1
公开(公告)日：2018-02-01
申请号：US15728751
申请日：2017-10-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dawei Wang , Yi Qian
IPC: H04Q11/00
CPC classification number: H04Q11/0005 , H04J14/00 , H04Q2011/0016 , H04Q2011/0049
Abstract: An optical cross-connect node includes a first optical switching switch, a second optical switching switch, a wave-dropping wavelength switching switch, a wave-adding wavelength switching switch, and a pass-through dimension switching switch. The first optical switching switch receives an optical signal, where the optical signal includes a first optical signal and/or a second optical signal. The first optical switching switch sends the first optical signal to the wave-dropping wavelength switching switch. The first optical switching switch sends the second optical signal to the pass-through dimension switching switch. The wave-dropping wavelength switching switch performs wavelength switching on the first optical signal. The wave-adding wavelength switching switch performs wavelength switching on a third optical signal generated locally and sends it to the second optical switching switch. The pass-through dimension switching switch performs dimension switching on the second optical signal and sends, to the second optical switching switch, the second optical signal that has undergone dimension switching.
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公开(公告)号：US10291971B2
公开(公告)日：2019-05-14
申请号：US15728751
申请日：2017-10-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dawei Wang , Yi Qian
Abstract: An optical cross-connect node includes a first optical switching switch, a second optical switching switch, a wave-dropping wavelength switching switch, a wave-adding wavelength switching switch, and a pass-through dimension switching switch. The first optical switching switch receives an optical signal, where the optical signal includes a first optical signal and/or a second optical signal. The first optical switching switch sends the first optical signal to the wave-dropping wavelength switching switch. The first optical switching switch sends the second optical signal to the pass-through dimension switching switch. The wave-dropping wavelength switching switch performs wavelength switching on the first optical signal. The wave-adding wavelength switching switch performs wavelength switching on a third optical signal generated locally and sends it to the second optical switching switch. The pass-through dimension switching switch performs dimension switching on the second optical signal and sends, to the second optical switching switch, the second optical signal that has undergone dimension switching.
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