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公开(公告)号：EP3531590A1
公开(公告)日：2019-08-28
申请号：EP16921747.8
申请日：2016-11-17
发明人： PENG, Guikai , LIN, Huafeng , NIE, Shiwei , WU, Xuming , FANG, Liming , DONG, Yinghua
IPC分类号： H04J14/02
摘要： Embodiments of this application provide a passive optical network communication method, an apparatus, and a system. The method includes: receiving an Ethernet packet, where the Ethernet packet carries an optical network unit identifier; looking up a correspondence between the optical network unit identifier and an optical network unit type based on the optical network unit identifier, to determine 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 type of optical network unit and a second type of optical network unit, and a packet receiving rate of the first type of optical network unit is different from a packet receiving rate of the second type of optical network unit; looking up a correspondence between the optical network unit type and a channel based on the first type of optical network unit, to determine a channel corresponding to the first type of optical network unit; and encapsulating the Ethernet packet into a GPON encapsulation method GEM frame and sending the GEM frame to the first type of optical network unit by using the determined channel. In the embodiments of this application, by improving a baud rate of a signal sent by an OLT, a transmission rate of an entire line is improved and a deployed ONU is also considered.
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公开(公告)号：EP4040746A1
公开(公告)日：2022-08-10
申请号：EP20881229.7
申请日：2020-08-25
发明人： WU, Xuming , LIU, Dekun , NIE, Shiwei
IPC分类号： H04L12/917
摘要： Embodiments of this application disclose a communication method based on a passive optical network, a related device, and a system. In a scenario in which the PON supports a plurality of wavelength paths, an OLT can flexibly indicate, to an ONU, an upstream wavelength path used to transmit upstream service data, to improve bandwidth utilization of the PON. The method includes: An OLT sends a first downstream frame to an activated ONU by using at least one downstream wavelength path, where the first downstream frame includes a first path identifier used to identify a first upstream wavelength path; and the OLT receives upstream service data from the activated ONU by using the first upstream wavelength path.
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公开(公告)号：EP3860001A1
公开(公告)日：2021-08-04
申请号：EP18938707.9
申请日：2018-10-31
发明人： ZHOU, Lei , NIE, Shiwei , LI, Shengping , GAO, Bo
IPC分类号： H04B10/27
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 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：EP3787206A1
公开(公告)日：2021-03-03
申请号：EP19802511.6
申请日：2019-05-13
发明人： WU, Xuming , YE, Zhicheng , NIE, Shiwei , GAO, Bo , JING, Lei
摘要： This application discloses a data processing method and apparatus, and a communications system. The method includes: receiving, by a source network device, S first data blocks at a physical coding sublayer, adding first information, and performing FEC encoding on the S first data blocks and the first information to generate a code word structure, where the first information includes code word synchronization information and OAM information; sending, by the source network device, the code word structure to a target network device; synchronizing, by the target network device, the code word structure based on the code word synchronization information and obtaining the OAM information. In this way, an OAM function is provided between the source network device and the target network device, and a management function of a communications system is implemented.
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公开(公告)号：EP3537628A1
公开(公告)日：2019-09-11
申请号：EP16922324.5
申请日：2016-11-23
发明人： LIN, Huafeng , YIN, Jinrong , ZHAO, Dianbo , WAN, Xifeng , NIE, Shiwei , ZHENG, Gang , LUO, Zhijing , ZENG, Xiaofei , LUO, Jun
IPC分类号： H04B7/26
摘要： This application discloses a PON system, an OLT, and an ONU, and relates to the optical communications field. The PON system includes an OLT and at least two ONUs, and the OLT and the at least two 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, and the upstream bandwidth grant is used to control the ONU to send upstream data; the 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; and 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 the registration function is enabled on the second upstream channel.
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公开(公告)号：EP3480981A1
公开(公告)日：2019-05-08
申请号：EP16909092.5
申请日：2016-07-18
发明人： GAO, Bo , NIE, Shiwei , JING, Lei , WANG, Zhenping
IPC分类号： H04L1/00
摘要： Embodiments of the present invention provide a downstream data frame transmitting method. The method is applied to a passive optical network PON system and includes: generating, by an OLT, a downstream data frame, where the downstream data frame includes a frame header and a payload, the frame header includes a physical synchronization sequence Psync field, and the Psync field is used to identify the downstream data frame, where when a value of the Psync field is a first value, the Psync field is further used to indicate that payload data is protected by forward error correction FEC; or when a value of the Psync field is a second value, the Psync field is further used to indicate that payload data is not protected by FEC; and sending, by the OLT, the downstream data frame. The embodiments of the present invention can reduce a bit error rate of a FEC indication status and improve reliability of the FEC indication status.
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公开(公告)号：EP2928101B1
公开(公告)日：2017-09-13
申请号：EP12890188.1
申请日：2012-12-18
发明人： NIE, Shiwei , WANG, Zhenping , XU, Zhiguang
CPC分类号： H04L1/0045 , H04B10/27 , H04J14/0227 , H04L1/00 , H04L1/0057 , H04L12/413 , H04L25/4908
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公开(公告)号：EP2928101A1
公开(公告)日：2015-10-07
申请号：EP12890188.1
申请日：2012-12-18
发明人： NIE, Shiwei , WANG, Zhenping , XU, Zhiguang
CPC分类号： H04L1/0045 , H04B10/27 , H04J14/0227 , H04L1/00 , H04L1/0057 , H04L12/413 , H04L25/4908
摘要： The present invention provides a method, a system, and an apparatus for data communication in an optical network system. A new encoding scheme is implemented in the following manner: performing 32-bit to 34-bit encoding on a data stream on which 8-bit/10-bit decoding has been performed, performing forward error correction encoding on the data stream on which the 32-bit to 34-bit encoding has been performed, and sending the encoded data stream; or performing forward error correction decoding on a received data stream, and performing 32-bit to 34-bit decoding on the data stream on which the forward error correction decoding has been performed. In this way, a bandwidth resource of a line is saved; line monitoring can be implemented without interrupting a service, which is easy to implement and greatly improves various types of performance of the system.
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公开(公告)号：EP4322546A1
公开(公告)日：2024-02-14
申请号：EP22827048.4
申请日：2022-03-07
发明人： YAN, Linzhi , ZHANG, Lun , NIE, Shiwei
IPC分类号： H04Q11/00
摘要： This application provides a data frame fragmentation method, a data frame parsing method, and a related device. An OLT generates an original data frame. The original data frame includes a frame header and a packet. If a length of the frame header is greater than a first preset value, the OLT performs fragmentation on the frame header to obtain a target data frame. A length of each subframe header after the frame header is fragmented is less than or equal to the first preset value. The target data frame includes a plurality of codewords. At least one codeword includes a first field. Each codeword includes a second field. The at least one codeword further includes a third field. The first field is used for carrying the subframe header and a first packet having a low priority. The second field is used for carrying a check code. The third field is used for carrying a second packet having a high priority. A sending order of the first packet is after a subframe header with a front most sending order, and the sending order of the first packet is before a sending order of at least one subframe header. Further, the OLT sends the target data frame to an optical network unit ONU.
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公开(公告)号：EP4184825A1
公开(公告)日：2023-05-24
申请号：EP21846445.1
申请日：2021-07-07
发明人： WANG, Xu , WU, Xuming , NIE, Shiwei
IPC分类号： H04L1/00
摘要： This application provides a data scrambling method, a data descrambling method, and a related device. The method in embodiments of this application includes: first, generating a raw data frame, where the raw data frame includes raw data and a PSB; next, generating a preload pattern of a scrambler based on a target bit, where the target bit is a part of bits in an SFC value corresponding to the raw data frame; and further, scrambling the raw data based on the preload pattern to obtain target data. In this application, the raw data is scrambled, so that bits 0 and bits 1 in the scrambled target data are more evenly distributed. This reduces a possibility that consecutive bits 0 or bits 1 appear in the target data, thereby reducing a bit error rate at a data receiving end.
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