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公开(公告)号：US20240283566A1
公开(公告)日：2024-08-22
申请号：US18651185
申请日：2024-04-30
发明人： Xuming Wu , Shiwei Nie , Xu Wang
CPC分类号： H04L1/0045 , H04L7/0075
摘要： A data processing method and a device, the method including determining, by an optical network unit, in a received data stream, after the optical network unit enters a pre-synchronization state, a position of a forward error correction (FEC) codeword boundary in the data stream based on a position of a physical synchronization sequence (Psync) field, performing an FEC codeword decoding check, where the Psync field is a field that matches a preset Psync, in the data stream, and entering, by the optical network unit, a synchronization state in response to an FEC codeword among N consecutive FEC codewords in the data stream passing the decoding check, where N is an integer greater than or equal to 1.
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公开(公告)号：US20230006766A1
公开(公告)日：2023-01-05
申请号：US17940209
申请日：2022-09-08
发明人： Xuming Wu , Shiwei Nie , Xu Wang
摘要： A data processing method and a device, the method including determining, by an optical network unit, in a received data stream, after the optical network unit enters a pre-synchronization state, a position of a forward error correction (FEC) codeword boundary in the data stream based on a position of a physical synchronization sequence (Psync) field, performing an FEC codeword decoding check, where the Psync field is a field that matches a preset Psync, in the data stream, and entering, by the optical network unit, a synchronization state in response to an FEC codeword among N consecutive FEC codewords in the data stream passing the decoding check, where N is an integer greater than or equal to 1.
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公开(公告)号：US11936430B2
公开(公告)日：2024-03-19
申请号：US18065281
申请日：2022-12-13
发明人： Lei Zhou , Shiwei Nie , Shengping Li , Bo Gao
CPC分类号： H04B10/27 , H04J14/00 , H04L25/03878 , H04J2203/0046 , H04J2203/0051
摘要： Embodiments of this application disclose a board, an optical module, a media access control (MAC) chip, a digital signal processor (DSP), and an information processing method. The board in the embodiments of this application includes a MAC chip, a DSP, and an equalizer. The MAC chip is configured to send first information to the DSP at an optical network unit (ONU) online stage, where the first information includes a first ONU identifier. The DSP is configured to receive the first information, and determine a first reference equalization parameter, where the first reference equalization parameter is related to the first ONU identifier. The DSP is further configured to set an equalization parameter of the equalizer to the first reference equalization parameter.
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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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公开(公告)号：US20190273634A1
公开(公告)日：2019-09-05
申请号：US16413811
申请日：2019-05-16
发明人： Guikai Peng , Huafeng Lin , Shiwei Nie , Xuming Wu , Liming Fang , Yinghua Dong
摘要： A passive optical network communication method, including receiving an Ethernet packet carrying an optical network unit identifier, determining a correspondence between the optical network unit identifier and an optical network unit type according to the optical network unit identifier, determining that an optical network unit that receives the Ethernet packet is a first type of optical network unit, where the optical network unit type includes the first and second type of optical network unit, and a packet receiving rate of the first type is different from that of the second type, determining a correspondence between the optical network unit type and a channel according to the first type, determining a channel corresponding to the first type, encapsulating the Ethernet packet into a gigabit-capable passive optical network encapsulation method (GEM) frame, and sending the GEM frame to the first type of optical network unit using the determined channel.
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公开(公告)号：US20230155732A1
公开(公告)日：2023-05-18
申请号：US18156833
申请日：2023-01-19
发明人： Xu Wang , Xuming Wu , Shiwei Nie
IPC分类号： H04L1/00
CPC分类号： H04L1/0084
摘要： In an embodiment a method includes generating a raw data frame, wherein the raw data frame includes a physical synchronization block (PSB) and raw data, generating a preload pattern based on a target bit, wherein the target bit is a part of bits in a superframe counter (SFC) value corresponding to the raw data frame and scrambling the raw data based on the preload pattern to obtain target data.
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公开(公告)号：US11558118B2
公开(公告)日：2023-01-17
申请号：US17244298
申请日：2021-04-29
发明人： Lei Zhou , Shiwei Nie , Shengping Li , Bo Gao
摘要： Embodiments of this application disclose a board, an optical module, a MAC chip, a DSP, and an information processing method. The board in the embodiments of this application includes a media access control (MAC) chip, a digital signal processor (DSP), and an equalizer. The MAC chip is configured to send first information to the DSP at an optical network unit (ONU) online stage, where the first information includes a first ONU identifier. The DSP is configured to receive the first information, and determine a first reference equalization parameter, where the first reference equalization parameter is related to the first ONU identifier. The DSP is further configured to set an equalization parameter of the equalizer to the first reference equalization parameter.
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公开(公告)号：US10805007B2
公开(公告)日：2020-10-13
申请号：US16298677
申请日：2019-03-11
发明人： Zhenping Wang , Bo Gao , Shiwei Nie , Lei Jing , Xuming Wu
摘要： Embodiments of the present invention disclose an EPON communication method, an ONU, and an OLT. The method includes: generating, by an ONU, a first control frame, where the first control frame includes a first data field, and the first data field includes a bandwidth requirement of the at least one LLID; and sending, by the ONU, the first control frame to an OLT. In addition, the OLT generates a second control frame, where the second control frame includes a second data field, and the second data field includes grant information of the at least one LLID; and the OLT sends the second control frame to the ONU. In the embodiments of the present invention, the first control frame may carry bandwidth requirements of a plurality of LLIDs, so that one first control frame can be used to report bandwidth requirements of a plurality of LLIDs.
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公开(公告)号：US10756841B2
公开(公告)日：2020-08-25
申请号：US16418886
申请日：2019-05-21
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, 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：US12009918B2
公开(公告)日：2024-06-11
申请号：US17940209
申请日：2022-09-08
发明人： Xuming Wu , Shiwei Nie , Xu Wang
CPC分类号： H04L1/0045 , H04L7/0075
摘要： A data processing method and a device, the method including determining, by an optical network unit, in a received data stream, after the optical network unit enters a pre-synchronization state, a position of a forward error correction (FEC) codeword boundary in the data stream based on a position of a physical synchronization sequence (Psync) field, performing an FEC codeword decoding check, where the Psync field is a field that matches a preset Psync, in the data stream, and entering, by the optical network unit, a synchronization state in response to an FEC codeword among N consecutive FEC codewords in the data stream passing the decoding check, where N is an integer greater than or equal to 1.
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