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公开(公告)号：US12081349B2
公开(公告)日：2024-09-03
申请号：US17937038
申请日：2022-09-30
发明人： Jinbo Li , Zelin Wang , Xiaofei Zeng
IPC分类号： G06F1/00 , H04L12/10 , H04Q11/00 , G06F1/3203
CPC分类号： H04L12/10 , H04Q11/0067 , G06F1/3203 , H04Q2213/1308
摘要： Embodiments of this application disclose an optical network unit and a PoE power supply system. The optical network unit in embodiments of this application includes a conductive connection terminal, a switch module, a network transformer, a first voltage conversion module, and a network interface connector. The conductive connection terminal is configured to be connected to a power over Ethernet PoE power supply device, and the conductive connection terminal is connected to the network transformer.
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公开(公告)号：US11509395B2
公开(公告)日：2022-11-22
申请号：US17195920
申请日：2021-03-09
发明人： Xuming Wu , Shengping Li , Lei Zhou , Xiaofei Zeng
摘要： A data transmission method includes receiving, by an optical line terminal (OLT) from an optical network unit (ONU), uplink burst data that includes a synchronization data block and a payload, where the synchronization data block includes first synchronization data, wherein the first synchronization data includes a first preamble and an ONU identifier, and a first bandwidth occupied by the first frequency distribution of the first synchronization data is narrower than a second bandwidth occupied by the second frequency distribution of the payload, and obtaining, by the OLT from the first synchronization data, the ONU identifier.
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公开(公告)号：US11374674B2
公开(公告)日：2022-06-28
申请号：US16988066
申请日：2020-08-07
发明人： Huafeng Lin , Jinrong Yin , Dianbo Zhao , Xifeng Wan , Shiwei Nie , Gang Zheng , Zhijing Luo , Xiaofei Zeng , Jun Luo
IPC分类号： H04J14/02
摘要： The present disclosure relates to passive optical network (PON) systems, an optical line terminal (OLT), and an optical network unit (ONU). One example PON system includes an OLT and at least two ONUs, and 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 which is used to control the 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.
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4.发明授权公开(公告)号：US10148387B2
公开(公告)日：2018-12-04
申请号：US15633482
申请日：2017-06-26
发明人： Min Wan , Xiaofei Zeng
IPC分类号： H04B10/077 , H04B10/079 , H04J14/08 , H04B10/272 , H04Q11/00 , H04J14/02
摘要： A method for detecting an optical network unit (ONU) in a passive optical network (PON), an ONU, a PON and an optical line terminal (OLT) are disclosed. In an embodiment the method include detecting an ONU identity code in an open uplink empty window or an empty timeslot, wherein the ONU identity code is a specific code stream sequence of the ONU that identifies a single ONU of the plurality of ONUs included in the PON system during the open uplink empty window or the empty timeslot and determining that the single ONU corresponding to the ONU identity code is a rogue ONU according to the ONU identity code.
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公开(公告)号：US09859975B2
公开(公告)日：2018-01-02
申请号：US15176845
申请日：2016-06-08
发明人： Xiaofei Zeng , Sanzhong Li , Gang Zheng
IPC分类号： H04B10/07 , H04B10/079 , H04B10/27
CPC分类号： H04B10/0793 , H04B10/07 , H04B10/0795 , H04B10/27
摘要： An apparatus and a method for detecting an uplink optical signal. The apparatus includes a memory and a processor, where the processor is configured to determine a remaining bandwidth in a target uplink frame as a test window, where the remaining bandwidth in the target uplink frame indicates an unallocated bandwidth in the target uplink frame, and detect an uplink optical signal in the determined test window. Therefore, a remaining bandwidth obtained after bandwidth allocation in a target uplink frame is used to detect an uplink optical signal, which can effectively use a resource without the need of independently opening a test window and using an extra resource to detect the uplink optical signal, thereby avoiding waste of a resource and improving test efficiency.
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公开(公告)号：US12107666B2
公开(公告)日：2024-10-01
申请号：US17727492
申请日：2022-04-22
发明人： Enyu Zhou , Lei Jing , Xiaofei Zeng , Huafeng Lin
CPC分类号： H04J14/0204 , H04J14/0245 , H04J14/0258 , H04J14/0267
摘要： This application provides a port detection method, an optical network device, and a passive optical network system, to quickly and accurately detect a port connected to an ONU, and improve efficiency of determining the port connected to the ONU. The method includes: an optical line terminal sends optical signals corresponding to all of N wavelengths to at least one optical network unit, where the N wavelengths are different from each other, and N is a positive integer; the OLT receives optical power values that are of the optical signals corresponding to all of the N wavelengths and that are sent by a first ONU, where the first ONU is any one of the at least one ONU; and the OLT determines, bases on the optical power values of the optical signals corresponding to all of the N wavelengths, information about an optical splitter port corresponding to the first ONU.
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公开(公告)号：US11750956B2
公开(公告)日：2023-09-05
申请号：US17548793
申请日：2021-12-13
发明人： Shengmeng Fu , Yu Xiong , Jiangwei Man , Chengyan Wang , Xiaofei Zeng , Li Zeng
CPC分类号： H04Q11/0067 , H04B10/6931 , H04Q11/0071
摘要： An optical receiver is disclosed, including an optoelectronic detector, a transimpedance amplification (TIA) circuit, a single-ended-to-differential converter, an I/O interface, and a controller. The optoelectronic detector, having bandwidth lower than required system transmission bandwidth, converts an optical signal into a current signal. The TIA circuit compensate gain for the received current signal based on a received control signal, to obtain a voltage signal, where a frequency response value of the current signal within first bandwidth is greater than that within the bandwidth of the optoelectronic detector, and any frequency in the first bandwidth is not lower than an upper cut-off frequency of the optoelectronic detector. The single-ended-to-differential converter converts the voltage signal into a differential voltage signal. The I/O interface outputs the differential voltage signal. The controller generates the control signal based on the differential voltage signal. The optical receiver disclosed can reduce costs while ensuring signal quality.
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公开(公告)号：US20230044724A1
公开(公告)日：2023-02-09
申请号：US17962840
申请日：2022-10-10
发明人： Xuming Wu , Shengping Li , Lei Zhou , Xiaofei Zeng
摘要： A data transmission method includes receiving, by an optical line terminal (OLT) from an optical network unit (ONU), uplink burst data that includes a synchronization data block and a payload, where the synchronization data block includes first synchronization data, wherein the first synchronization data includes a first preamble and an ONU identifier, and a first bandwidth occupied by the first frequency distribution of the first synchronization data is narrower than a second bandwidth occupied by the second frequency distribution of the payload, and obtaining, by the OLT from the first synchronization data, the ONU identifier.
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公开(公告)号：US09866317B2
公开(公告)日：2018-01-09
申请号：US15196480
申请日：2016-06-29
发明人： Xiaofei Zeng , Sanzhong Li , Gang Zheng
IPC分类号： H04B10/079 , H04J14/08 , H04B10/272
CPC分类号： H04B10/07955 , H04B10/272 , H04J14/08
摘要： Embodiments disclose a method and an apparatus for detecting power of an uplink optical signal, an optical line terminal, and an optical network system. The method includes: separately generating a triggering signal that is used for detecting optical power for each uplink optical signal among multiple uplink optical signals to be detected, where the triggering signal of each uplink optical signal has same duration. The method also includes separately detecting power of each uplink optical signal in the duration of the triggering signal of each uplink optical signal.
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10.发明授权公开(公告)号：US09838150B2
公开(公告)日：2017-12-05
申请号：US14039715
申请日：2013-09-27
发明人： Min Wan , Xiaofei Zeng
IPC分类号： H04B10/077 , H04B10/079 , H04J14/08 , H04B10/272 , H04Q11/00 , H04J14/02
CPC分类号： H04J14/086 , H04B10/077 , H04B10/079 , H04B10/272 , H04J14/0247 , H04J14/0252 , H04J14/0282 , H04Q11/0067 , H04Q2011/0081 , H04Q2011/0083
摘要： Embodiments of the present invention disclose a method and an apparatus for detecting an ONU, and a passive optical network system. The method includes detecting an identity code of an ONU in an open uplink empty window or an empty timeslot, and determining that an ONU corresponding to the identity code of the ONU is a rogue ONU according to the identity code of the ONU. A corresponding apparatus and passive optical network system are also provided in the embodiments of the present invention. In the passive optical network system, a rogue ONU is detected and determined quickly and efficiently, and an effect on an uplink service is reduced.
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