Patents by Inventor Xifeng WAN
Xifeng WAN 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: 11916803Abstract: A method includes: mapping a to-be-transmitted service flow to a virtual connection based on a mapping relationship between an identifier of the to-be-transmitted service flow and an identifier of the virtual connection; mapping the to-be-transmitted service flow to a virtual bearer based on a mapping relationship between the identifier of the virtual connection and an identifier of the virtual bearer; and mapping the to-be-transmitted service flow to a virtual bearer queue based on a mapping relationship between a quality of service characteristic identifier of the to-be-transmitted service flow and an identifier of the virtual bearer queue in the virtual bearer, to transmit the to-be-transmitted service flow to an OLT.Type: GrantFiled: April 22, 2022Date of Patent: February 27, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Fei Chi, Xifeng Wan, Yiming Wang
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Publication number: 20240014896Abstract: This application discloses an optical splitting apparatus, an optical splitting system, a passive optical network, and an optical fiber fault detection method. The optical splitting apparatus includes a first optical splitting unit, a plurality of first optical path processing units, and a second optical path processing unit. The first optical splitting unit includes a first port and a plurality of second ports, and the first port is separately connected to the plurality of second ports.Type: ApplicationFiled: September 22, 2023Publication date: January 11, 2024Inventors: Huafeng Lin, Xifeng Wan, Shu Li
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Patent number: 11652564Abstract: This application discloses a bandwidth allocation method, an optical line terminal (OLT), an optical network unit (ONU), and a system, where the method includes receiving a bandwidth request from each ONU, where the ONU includes an ONU1, generating a bandwidth map (BWMap) message according to bandwidth requested by the ONU and bandwidth configured for the ONU, where the BWMap message includes a first allocation identifier (Alloc-ID1), a first time corresponding to the Alloc-ID1, a second allocation identifier (Alloc-ID2), and a second time corresponding to the Alloc-ID2, and both the Alloc-ID1 and the Alloc-ID2 are allocated to the ONU1 for use, and sending the BWMap message to each ONU. Therefore, a problem that a transmission delay does not satisfy a requirement when a passive optical network (PON) system is applied to mobile backhaul is resolved, a data transmission rate and data transmission efficiency are improved, and user satisfaction is improved.Type: GrantFiled: May 12, 2021Date of Patent: May 16, 2023Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Lun Zhang, Xifeng Wan, Gang Zheng
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Publication number: 20220247692Abstract: A method includes: mapping a to-be-transmitted service flow to a virtual connection based on a mapping relationship between an identifier of the to-be-transmitted service flow and an identifier of the virtual connection; mapping the to-be-transmitted service flow to a virtual bearer based on a mapping relationship between the identifier of the virtual connection and an identifier of the virtual bearer; and mapping the to-be-transmitted service flow to a virtual bearer queue based on a mapping relationship between a quality of service characteristic identifier of the to-be-transmitted service flow and an identifier of the virtual bearer queue in the virtual bearer, to transmit the to-be-transmitted service flow to an OLT.Type: ApplicationFiled: April 22, 2022Publication date: August 4, 2022Inventors: Fei Chi, Xifeng Wan, Yiming Wang
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Patent number: 11374674Abstract: 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.Type: GrantFiled: August 7, 2020Date of Patent: June 28, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Huafeng Lin, Jinrong Yin, Dianbo Zhao, Xifeng Wan, Shiwei Nie, Gang Zheng, Zhijing Luo, Xiaofei Zeng, Jun Luo
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Publication number: 20210266090Abstract: This application discloses a bandwidth allocation method, an optical line terminal (OLT), an optical network unit (ONU), and a system, where the method includes receiving a bandwidth request from each ONU, where the ONU includes an ONU1, generating a bandwidth map (BWMap) message according to bandwidth requested by the ONU and bandwidth configured for the ONU, where the BWMap message includes a first allocation identifier (Alloc-ID1), a first time corresponding to the Alloc-ID1, a second allocation identifier (Alloc-ID2), and a second time corresponding to the Alloc-ID2, and both the Alloc-ID1 and the Alloc-ID2 are allocated to the ONU1 for use, and sending the BWMap message to each ONU. Therefore, a problem that a transmission delay does not satisfy a requirement when a passive optical network (PON) system is applied to mobile backhaul is resolved, a data transmission rate and data transmission efficiency are improved, and user satisfaction is improved.Type: ApplicationFiled: May 12, 2021Publication date: August 26, 2021Inventors: Lun Zhang, Xifeng Wan, Gang Zheng
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Patent number: 11038617Abstract: This application discloses a bandwidth allocation method, an optical line terminal (OLT), an optical network unit (ONU), and a system, where the method includes receiving a bandwidth request from each ONU, where the ONU includes an ONU1, generating a bandwidth map (BWMap) message according to bandwidth requested by the ONU and bandwidth configured by the ONU, where the BWMap message includes a first allocation identifier (Alloc-ID1), a first time corresponding to the Alloc-ID1, a second allocation identifier (Alloc-1D2), and a second time corresponding to the Alloc-ID2, and both the Alloc-ID1 and the Alloc-ID2 are allocated to the ONU1 for use, and sending the BWMap message to each ONU. Therefore, a problem that a transmission delay does not satisfy a requirement when a passive optical network (PON) system is applied to mobile backhaul is resolved, a data transmission rate and data transmission efficiency are improved, and user satisfaction is improved.Type: GrantFiled: January 4, 2018Date of Patent: June 15, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Lun Zhang, Xifeng Wan, Gang Zheng
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Publication number: 20200366400Abstract: 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.Type: ApplicationFiled: August 7, 2020Publication date: November 19, 2020Inventors: Huafeng LIN, Jinrong YIN, Dianbo ZHAO, Xifeng WAN, Shiwei NIE, Gang ZHENG, Zhijing LUO, Xiaofei ZENG, Jun LUO
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Patent number: 10756841Abstract: 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.Type: GrantFiled: May 21, 2019Date of Patent: August 25, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Huafeng Lin, Jinrong Yin, Dianbo Zhao, Xifeng Wan, Shiwei Nie, Gang Zheng, Zhijing Luo, Xiaofei Zeng, Jun Luo
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Patent number: 10516923Abstract: A bandwidth assignment method and apparatus, and an optical network system are disclosed. The method includes: setting a maximum bandwidth grant size and a maximum burst bandwidth grant size for an optical network unit; receiving a bandwidth assignment request of the optical network unit; and when an optical line terminal determines, according to the bandwidth assignment request, that a bandwidth grant size requested to be assigned in the bandwidth request is greater than the set maximum bandwidth grant size and less than or equal to the set maximum burst bandwidth grant size, determining, by the optical line terminal, in response to the request, to assign the requested bandwidth grant size to the optical network unit. Therefore, timely and accurate transmission of massive uplink burst data traffic is ensured, a transmission delay is reduced, service performance is improved, and system bandwidth utilization is greatly increased.Type: GrantFiled: June 27, 2018Date of Patent: December 24, 2019Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Gang Zheng, Xifeng Wan
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Publication number: 20190319709Abstract: A method for managing an optical network unit (ONU), an apparatus, and a system are disclosed. A message for obtaining a management mode supported by an ONU is sent, where the management mode supported by the ONU includes one or more of an OMCI mode, an OAM management mode, a NETCONF management mode, a TR069 management mode, and a SNMP management mode; a management mode sent by the ONU is received; a management mode to be used for the ONU is selected based on the management mode supported by the ONU, and is sent to the ONU. In this way, a plurality of existing management mechanisms of the ONU are compatible with each other, management of the ONU is simplified, and efficiency of managing the ONU is improved.Type: ApplicationFiled: June 27, 2019Publication date: October 17, 2019Inventors: Gang ZHENG, Xifeng WAN, Wei LIN
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Publication number: 20190273975Abstract: 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.Type: ApplicationFiled: May 21, 2019Publication date: September 5, 2019Inventors: Huafeng LIN, Jinrong YIN, Dianbo ZHAO, Xifeng WAN, Shiwei NIE, Gang ZHENG, Zhijing LUO, Xiaofei ZENG, Jun LUO
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Patent number: 10284298Abstract: Embodiments of the present invention disclose a method for awaking an optical network unit in a passive optical network, including: receiving, by an optical line terminal OLT, a service packet corresponding to an ONU in an energy-saving mode, where the service packet carries a packet feature, and the packet feature indicates a service type of the service packet; detecting, by the OLT, the packet feature of the service packet; and when the packet feature of the service packet is a preset packet feature of needing to awake the ONU, awaking, by the OLT, the ONU in the energy-saving mode. According to the technical solutions provided in the embodiments of the present invention, an ONU can be awoken from an energy-saving mode in time when a traffic rate at an initial service stage is small, and a high QoS requirement of a service is met.Type: GrantFiled: June 28, 2017Date of Patent: May 7, 2019Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Haixiong Liu, Gang Zheng, Xifeng Wan, Dongsheng Yue
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Publication number: 20180316992Abstract: A bandwidth assignment method and apparatus, and an optical network system are disclosed. The method includes: setting a maximum bandwidth grant size and a maximum burst bandwidth grant size for an optical network unit; receiving a bandwidth assignment request of the optical network unit; and when an optical line terminal determines, according to the bandwidth assignment request, that a bandwidth grant size requested to be assigned in the bandwidth request is greater than the set maximum bandwidth grant size and less than or equal to the set maximum burst bandwidth grant size, determining, by the optical line terminal, in response to the request, to assign the requested bandwidth grant size to the optical network unit. Therefore, timely and accurate transmission of massive uplink burst data traffic is ensured, a transmission delay is reduced, service performance is improved, and system bandwidth utilization is greatly increased.Type: ApplicationFiled: June 27, 2018Publication date: November 1, 2018Inventors: Gang Zheng, Xifeng Wan
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Publication number: 20180191456Abstract: This application discloses a bandwidth allocation method, an optical line terminal (OLT), an optical network unit (ONU), and a system, where the method includes receiving a bandwidth request from each ONU, where the ONU includes an ONU1, generating a bandwidth map (BWMap) message according to bandwidth requested by the ONU and bandwidth configured by the ONU, where the BWMap message includes a first allocation identifier (Alloc-ID1), a first time corresponding to the Alloc-ID1, a second allocation identifier (Alloc-1D2), and a second time corresponding to the Alloc-ID2, and both the Alloc-ID1 and the Alloc-ID2 are allocated to the ONU1 for use, and sending the BWMap message to each ONU. Therefore, a problem that a transmission delay does not satisfy a requirement when a passive optical network (PON) system is applied to mobile backhaul is resolved, a data transmission rate and data transmission efficiency are improved, and user satisfaction is improved.Type: ApplicationFiled: January 4, 2018Publication date: July 5, 2018Inventors: Lun Zhang, Xifeng Wan, Gang Zheng
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Publication number: 20170302380Abstract: Embodiments of the present invention disclose a method for awaking an optical network unit in a passive optical network, including: receiving, by an optical line terminal OLT, a service packet corresponding to an ONU in an energy-saving mode, where the service packet carries a packet feature, and the packet feature indicates a service type of the service packet; detecting, by the OLT, the packet feature of the service packet; and when the packet feature of the service packet is a preset packet feature of needing to awake the ONU, awaking, by the OLT, the ONU in the energy-saving mode. According to the technical solutions provided in the embodiments of the present invention, an ONU can be awoken from an energy-saving mode in time when a traffic rate at an initial service stage is small, and a high QoS requirement of a service is met.Type: ApplicationFiled: June 28, 2017Publication date: October 19, 2017Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Haixiong LIU, Gang ZHENG, Xifeng WAN, Dongsheng YUE
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Publication number: 20160173479Abstract: A terminal authentication method in a passive optical network (PON) which includes, receiving, by the optical line terminal (OLT), a registration request that carries an authentication parameter and is sent by the optical network terminal (ONT), where the authentication parameter is used to identify the ONT of a same type, and determining, by the OLT, that the authentication parameter sent by the ONT matches the authentication parameter preconfigured on the OLT, and authorizing that the ONT is an authorized terminal. Using the foregoing technical solutions, an OLT may be, during optical network unit (ONU) registration and authentication, plug-and-play, without needing to manually input authentication information, which improves automation and flexibility of authentication.Type: ApplicationFiled: February 19, 2016Publication date: June 16, 2016Inventors: Lun Zhang, Xifeng Wan
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Publication number: 20090147786Abstract: A multicast service processing method and access equipment are disclosed. The method includes: receiving multicast program request message from terminal device, inquiring about program rating parameters according to said multicast program request message, wherein the program rating parameter includes multicast group IP address and multicast program rated priority, generating multicast program data according to the program rating parameters, sending the multicast program data to the terminal device.Type: ApplicationFiled: December 8, 2008Publication date: June 11, 2009Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Zhiqiang LI, Qin CHEN, Deyi WANG, Peifeng QIN, Yong LUO, Xifeng WAN, Jiahong WEI, Yue CHANG, Haijun WU