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公开(公告)号：US10667025B2
公开(公告)日：2020-05-26
申请号：US15818108
申请日：2017-11-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Fei Ye , Dianbo Zhao , Guikai Peng , Huafeng Lin , Ning Cheng , Xiaofeng Zhang , Dajiang Tang , Zhenping Wang
IPC: H04Q11/00 , H04J14/00 , H04B10/272
Abstract: A framing method and apparatus in a passive optical network (PON) and a system, where the method includes generating a first transmission convergence (TC) frame and a second TC frame separately, wherein a sum of frame lengths of the first and the second TC frame is 125 microseconds (μs), performing bit mapping on the second TC frame to generate a third TC frame, where the bit mapping refers to identifying each bit of the second TC frame using N bits, and sending the first and the second TC frame to an optical network unit (ONU). A line rate corresponding to the second TC frame is lower than 2.488 giga bits per second (Gbps) such that a rate of a receiver on a receiving side is decreased and a bandwidth of the receiver is narrowed, thereby decreasing an optical link loss and increasing an optical power budget.
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公开(公告)号：US09838147B2
公开(公告)日：2017-12-05
申请号：US14742437
申请日：2015-06-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhiguang Xu , Huafeng Lin , Xiaoping Zhou , Dekun Liu
CPC classification number: H04J14/02 , G02B6/4278 , H04B10/27 , H04B10/40
Abstract: Embodiments of the present invention provide a line card, an optical module, and an optical network device. The optical module includes at least one electrical interface and at least one optical interface. The wavelength division multiplexer/demultiplexer includes a first interface and a second interface. The panel is disposed on an edge of the mainboard. The electrical interface is electrically connected to the mainboard. The optical interface faces a direction that is from the edge of the mainboard to an interior of the mainboard and that is parallel to the mainboard, and the optical interface is connected to the first interface. The wavelength division multiplexer/demultiplexer is disposed on the mainboard, the second interface is configured to connect to a feeder fiber, and the feeder fiber is configured to connect an optical network device at a sending end and an optical network device at a receiving end.
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公开(公告)号：US09647791B2
公开(公告)日：2017-05-09
申请号：US14569682
申请日：2014-12-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bo Gao , Huafeng Lin , Jianhe Gao , Fei Ye
CPC classification number: H04J14/0232 , H04B10/27 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0257 , H04J14/0258 , H04J14/0267 , H04J14/0269 , H04J14/0275 , H04J14/0282
Abstract: The present application provides a wavelength configuration method for a multi-wavelength passive optical network, which includes: scanning, by an ONU, a downstream receiving wavelength, and receiving, downstream wavelength information of each downstream wavelength channel that is broadcast by an OLT separately through each downstream wavelength channel of a multi-wavelength PON system; establishing, by the ONU, a downstream receiving wavelength mapping table, where an entry of the downstream receiving wavelength mapping table includes downstream receiving wavelength information, drive current information of a downstream optical receiver and receiving optical physical parameter information of the ONU; selecting, by the ONU, one downstream wavelength from the downstream wavelength information broadcast by the OLT, and setting, according to the drive current information of the downstream optical receiver recorded in a related entry of the downstream receiving wavelength mapping table, an operating wavelength of the downstream optical receiver to the selected downstream wavelength.
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公开(公告)号：US20170117960A1
公开(公告)日：2017-04-27
申请号：US15381813
申请日：2016-12-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guikai Peng , Huafeng Lin
IPC: H04B10/079 , H04L29/08 , H04B10/073 , H04B10/27
CPC classification number: H04B10/07953 , H04B10/073 , H04B10/0799 , H04B10/27 , H04L41/0806 , H04L67/34 , H04Q11/0067 , H04Q2011/0086 , H04Q2011/0088
Abstract: Embodiments provide a communication method. The method includes downloading, from a server according to a user instruction, a technical specification indicated by the user instruction, and sending the technical specification to an optical network unit (ONU) by using an out-of-band management channel. The method also includes configuring the technical specification, and delivering a control message to the ONU by using the out-of-band management channel, to instruct the ONU to configure the technical specification. The method also includes communicating, based on a mode supported by the technical specification, with the ONU by using an in-band data channel.
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公开(公告)号：US20150288477A1
公开(公告)日：2015-10-08
申请号：US14742437
申请日：2015-06-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhiguang Xu , Huafeng Lin , Xiaoping Zhou , Dekun Liu
CPC classification number: H04J14/02 , G02B6/4278 , H04B10/27 , H04B10/40
Abstract: Embodiments of the present invention provide a line card, an optical module, and an optical network device. The optical module includes at least one electrical interface and at least one optical interface. The wavelength division multiplexer/demultiplexer includes a first interface and a second interface. The panel is disposed on an edge of the mainboard. The electrical interface is electrically connected to the mainboard. The optical interface faces a direction that is from the edge of the mainboard to an interior of the mainboard and that is parallel to the mainboard, and the optical interface is connected to the first interface. The wavelength division multiplexer/demultiplexer is disposed on the mainboard, the second interface is configured to connect to a feeder fiber, and the feeder fiber is configured to connect an optical network device at a sending end and an optical network device at a receiving end.
Abstract translation: 本发明的实施例提供一种线路卡，光模块和光网络设备。 光学模块包括至少一个电接口和至少一个光接口。 波分多路复用器/解复用器包括第一接口和第二接口。 面板设置在主板的边缘。 电气接口电连接到主板。 光接口面向从主板边缘到主板内部平行于主板的方向，光接口连接到第一接口。 波分复用器/解复用器设置在主板上，第二接口被配置为连接到馈线光纤，并且馈线光纤被配置为在发送端连接光网络设备和在接收端连接光网络设备。
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Patent Agency Ranking
公开(公告)号：US20250167896A1
公开(公告)日：2025-05-22
申请号：US19027990
申请日：2025-01-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huafeng Lin , Yuanmou Li , Lixin Huang
Abstract: This application provides a signal amplification apparatus, an optical signal receiving apparatus, and a method, to meet high-performance time-division reception of 50GPON and GPON uplink signals, and implement a requirement for coexistence of 50GPON and GPON terminal devices on a same PON interface in a system. The apparatus includes a signal receiving unit, a channel selection unit, a first amplification and data recovery channel, and a second amplification and data recovery channel.
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公开(公告)号：US20230079705A1
公开(公告)日：2023-03-16
申请号：US17984325
申请日：2022-11-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Huafeng Lin , Enyu Zhou , Xiaofei Zeng
Abstract: This application provides a port detection method and apparatus. In the technical solutions in this application, an OLT or an ONU may determine, based on at least two wavelengths and a preset correspondence, port information that is of an optical splitter and that corresponds to the ONU. That is, a branch port directly or indirectly connected to the ONU is defined by using the at least two wavelengths. In this way, different branch ports can be distinguished by using combinations of a plurality of wavelengths, to define a large quantity of branch ports of the optical splitter by using free combinations of a small quantity of wavelengths.
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28.发明授权公开(公告)号：US10756841B2
公开(公告)日：2020-08-25
申请号：US16418886
申请日：2019-05-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Huafeng Lin , Jinrong Yin , Dianbo Zhao , Xifeng Wan , Shiwei Nie , Gang Zheng , Zhijing Luo , Xiaofei Zeng , Jun Luo
IPC: H04J14/02
Abstract: The present disclosure relates to passive optical network (PON) systems, optical line terminals (OTLs), and optical network units (ONUs). One example PON system includes an OLT and at least two ONUs. The OLT and the ONUs exchange data on one downstream channel and two upstream channels. The OLT sends downstream data to each ONU on the downstream channel, where the downstream data includes an upstream bandwidth grant used to control each ONU to send upstream data. Each ONU receives the downstream data on the downstream channel, and sends the upstream data on a first upstream channel or a second upstream channel based on the upstream bandwidth grant included in the downstream data. The OLT receives, on the first upstream channel and the second upstream channel, the upstream data sent by each ONU, where a registration function is disabled on the first upstream channel, and enabled on the second upstream channel.
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公开(公告)号：US20190157832A1
公开(公告)日：2019-05-23
申请号：US16252090
申请日：2019-01-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xuming Wu , Huafeng Lin , Liming Fang
Abstract: Embodiments of the present invention disclose a wavelength shift control method and system, to implement stable control over temperature of a laser to ensure that a transmit wavelength of the laser is stable in a burst work process of a transmitter and is not shifted to avoid impact on normal work of a PON system with a plurality of wavelength paths. The method includes: generating a burst control signal; sending the burst control signal to a controller; and controlling switch statuses of a laser and a heater according to the received burst control signal, where when a switch of the laser is in an on state, a switch of the heater is in an off state, and when a switch of the laser is in an off state, a switch of the heater is in an on state, so that a temperature of the laser remains stable.
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公开(公告)号：US10091566B2
公开(公告)日：2018-10-02
申请号：US14964280
申请日：2015-12-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Guikai Peng , Huafeng Lin
Abstract: Embodiments of the present invention provide a method and an apparatus for virtualizing a passive optical network, and a passive optical network virtualization system. The method includes: receiving a virtualized passive optical network creation message, where the virtualized passive optical network creation message includes an ID of a to-be-created VPON and at least one wavelength flow identifier λ-flow ID; and establishing, according to the VPON ID and the at least one λ-flow ID, a communication connection relationship with at least one optical network unit in the virtualized passive optical network identified by the VPON ID. According to the method provided by the embodiments of the present invention, on one hand, complex networking performed to deal with different application scenarios is avoided.
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