Patents by Inventor Xuming Wu
Xuming Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12149337Abstract: An upstream resource grant method, a device, a passive optical network, and a computer-readable storage medium are provided. The upstream resource grant method includes: obtaining, by an optical line terminal, an upstream grant message on which transformation processing has been performed, wherein a transformation parameter used for the transformation processing includes a physical identity of an optical network unit (ONU); and sending, by the optical line terminal, the upstream grant message on which the transformation processing has been performed, wherein the upstream grant message carries an upstream resource grant indication of the optical network unit, and the upstream resource grant indication indicates an upstream resource granted to the optical network unit. According to this application, an occurrence probability of a rogue ONU phenomenon is reduced, thereby improving service running stability of a PON system.Type: GrantFiled: May 27, 2022Date of Patent: November 19, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Xuming Wu, Shiwei Nie, Xiaofei Zeng, Dekun Liu, Gang Zheng, Jun Zhou
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Publication number: 20240364448Abstract: An encoding configuration method includes an optical network unit that receives first information, where the first information indicates a change amount of forward error correction codeword information relative to first forward error correction mother code. The optical network unit determines the forward error correction codeword information based on the first information. According to technical solutions provided in this application, the change amount of the forward error correction codeword information relative to the first forward error correction mother code is indicated, to help implement flexible configuration of the forward error correction codeword information.Type: ApplicationFiled: July 5, 2024Publication date: October 31, 2024Inventors: Xuming Wu, Chengxian Luo
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Publication number: 20240283566Abstract: 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.Type: ApplicationFiled: April 30, 2024Publication date: August 22, 2024Inventors: Xuming Wu, Shiwei Nie, Xu Wang
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Patent number: 12009918Abstract: 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.Type: GrantFiled: September 8, 2022Date of Patent: June 11, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Xuming Wu, Shiwei Nie, Xu Wang
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Publication number: 20240121004Abstract: 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.Type: ApplicationFiled: December 20, 2023Publication date: April 11, 2024Inventors: Xuming Wu, Shengping Li, Lei Zhou, Xiaofei Zeng
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Patent number: 11909446Abstract: 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.Type: GrantFiled: October 10, 2022Date of Patent: February 20, 2024Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xuming Wu, Shengping Li, Lei Zhou, Xiaofei Zeng
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Patent number: 11855756Abstract: A status control method, applied to an optical network unit (ONU) or an optical network terminal (ONT) of a passive optical network (PON) includes: receiving a first downlink data frame, where the first downlink data frame includes data of N different rates and indication information, the indication information includes length information of data of each rate in the first downlink data frame, and N?2; determining length information of first data in the data of the N different rates, where a rate of the first data is higher than a working rate of a clock and data recovery (CDR) module; and generating control information based on the length information of the first data, to control the CDR module to be in a specified state within a period of time corresponding to the length information of the first data.Type: GrantFiled: March 29, 2022Date of Patent: December 26, 2023Assignee: Huawei Technologies Co., Ltd.Inventors: Shengping Li, Lei Jing, Jun Zhou, Xuming Wu
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Publication number: 20230379072Abstract: This application discloses a communication method and a device, and belongs to the communication field. The method includes: generating a passive optical network PON data frame, where the PON data frame includes an overhead area, the overhead area includes at least a part of a first timestamp, and the first timestamp is for time synchronization; and sending the PON data frame. This application can reduce operation overheads for parsing a PON data frame. This application is for time synchronization between an OLT and an ONU.Type: ApplicationFiled: August 3, 2023Publication date: November 23, 2023Inventors: Jianlin XUE, Jingfei LYU, Xuming WU
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Publication number: 20230353279Abstract: This application provides a method for uplink FEC encoding. On example method includes: obtaining a grant length of an uplink slot, where the grant length is equal to a product of a grant quantity of the uplink slot and a grant granularity, and the grant granularity is a grant granularity supported by a device to which the uplink slot belongs; and obtaining an FEC codeword of uplink data based on the grant length and an LDPC coding scheme, where the FEC codeword includes an LDPC codeword data bit, and in the LDPC coding scheme, N times the LDPC codeword data bit is divisible by the grant granularity, where N is a positive integer greater than or equal to 1.Type: ApplicationFiled: July 6, 2023Publication date: November 2, 2023Inventor: Xuming WU
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Publication number: 20230246741Abstract: A data processing method including receiving a data flow sent by an encoder side, where the data flow is a bit stream on which interleaving encoding is used, the data flow includes synchronization information, and the synchronization information is distributed in the data flow based on a first permutation interval, obtaining, from the data flow, first data information based on a first value interval and a first value length, where the first value interval is equal to the first permutation interval, and a difference between the first value length and a length of the synchronization information is less than or equal to a preset error value, and when a similarity between the first data information and the synchronization information exceeds a preset similarity threshold, performing de-interleaving on the data flow based on a start location of the first data information.Type: ApplicationFiled: March 29, 2023Publication date: August 3, 2023Inventors: Xuming Wu, Xu Wang, Dekun Liu
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Publication number: 20230155732Abstract: 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.Type: ApplicationFiled: January 19, 2023Publication date: May 18, 2023Inventors: Xu Wang, Xuming Wu, Shiwei Nie
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Publication number: 20230123881Abstract: This application provides a training sequence determining method and a related device. The method in embodiments of this application includes: An ONU receives a first message sent by an OLT. Then, the ONU determines a target training sequence based on the first message, where the target training sequence is used to determine a working parameter of an equalizer in the OLT. Further, the ONU generates a first data frame including the target training sequence. In this application, the OLT may perform training based on the received target training sequence to determine the working parameter of the equalizer in the OLT.Type: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Inventor: Xuming Wu
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Publication number: 20230044724Abstract: 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.Type: ApplicationFiled: October 10, 2022Publication date: February 9, 2023Inventors: Xuming Wu, Shengping Li, Lei Zhou, Xiaofei Zeng
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Publication number: 20230006766Abstract: 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.Type: ApplicationFiled: September 8, 2022Publication date: January 5, 2023Inventors: Xuming Wu, Shiwei Nie, Xu Wang
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Patent number: 11509395Abstract: 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.Type: GrantFiled: March 9, 2021Date of Patent: November 22, 2022Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xuming Wu, Shengping Li, Lei Zhou, Xiaofei Zeng
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Publication number: 20220294551Abstract: Embodiments of this application provide an upstream resource grant method, a device, a passive optical network, and a computer-readable storage medium. The upstream resource grant method includes: An optical line terminal obtains an upstream grant message on which transformation processing has been performed, where a transformation parameter used for the transformation processing includes a physical identity of an optical network unit (ONU); and the optical line terminal sends the upstream grant message on which the transformation processing has been performed, where the upstream grant message carries an upstream resource grant indication of the optical network unit, and the upstream resource grant indication is used to indicate an upstream resource granted to the optical network unit. The technical solutions provided in the embodiments of this application help reduce an occurrence probability of a rogue ONU phenomenon, and further improve service running stability of a PON system.Type: ApplicationFiled: May 27, 2022Publication date: September 15, 2022Inventors: Xuming WU, Shiwei NIE, Xiaofei ZENG, Dekun LIU, Gang ZHENG, Jun ZHOU
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Publication number: 20220256264Abstract: A communication method, a device, and a system, the method including sending, by an optical line terminal (OLT) of a passive optical network that comprises the OLT and a plurality of optical network units (ONUs), a first downstream frame to the activated ONU using at least one downstream wavelength path, where the OLT and the at least one ONU of the plurality of ONUs communicate with each other using at the least one downstream wavelength path and a plurality of upstream wavelength paths, the plurality of ONUs comprises an activated ONU, wherein the first downstream frame comprises a first path identifier used to identify a first upstream wavelength path, and the first upstream wavelength path is one of the plurality of upstream wavelength paths, and receiving, by the OLT, upstream service data from the activated ONU using the first upstream wavelength path.Type: ApplicationFiled: April 27, 2022Publication date: August 11, 2022Inventors: Xuming Wu, Dekun Liu, Shiwei Nie
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Publication number: 20220224429Abstract: A status control method, applied to an optical network unit (ONU) or an optical network terminal (ONT) of a passive optical network (PON) includes: receiving a first downlink data frame, where the first downlink data frame includes data of N different rates and indication information, the indication information includes length information of data of each rate in the first downlink data frame, and N?2; determining length information of first data in the data of the N different rates, where a rate of the first data is higher than a working rate of a clock and data recovery (CDR) module; and generating control information based on the length information of the first data, to control the CDR module to be in a specified state within a period of time corresponding to the length information of the first data.Type: ApplicationFiled: March 29, 2022Publication date: July 14, 2022Inventors: Shengping LI, Lei JING, Jun ZHOU, Xuming WU
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Patent number: 11108465Abstract: An apparatus includes a processor configured to determine a set of first lanes associated with a PON, select a subset of second lanes from the set, and perform lane bonding by bonding the subset to an ONU. A transmitter coupled to the processor is configured to transmit a lane bonding assignment to the ONU. An ONU includes a plurality of receivers configured to receive a first message comprising an announcement indicating an OLT lane capability. A processor coupled to the receivers is configured to process the first message and generate a second message in response to the first message, wherein the second message comprises a report indicating an ONU lane capability and prompting lane bonding in a PON. A plurality of transmitters coupled to the processor is configured to transmit the second message to the OLT.Type: GrantFiled: June 30, 2020Date of Patent: August 31, 2021Assignee: Futurewei Technologies, Inc.Inventors: Jianhe Gao, Yuanqiu Luo, Xuming Wu
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Patent number: 11063783Abstract: 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.Type: GrantFiled: May 16, 2019Date of Patent: July 13, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Guikai Peng, Huafeng Lin, Shiwei Nie, Xuming Wu, Liming Fang, Yinghua Dong