Patents by Inventor Haijun Xu

Haijun Xu 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).

  • Patent number: 11938465
    Abstract: The invention discloses a coordination type zirconium phosphotungstate catalyst and its application in catalytic hydrogenation of furfural, belonging to the field of heterogeneous catalysis. The zirconium phosphotungstate catalyst prepared by the invention not only has good catalytic effect on the conversion of furfural to furfuryl alcohol, but also has mild reaction conditions. The yield of solid line furfuryl alcohol can be 98% if it can be reacted for 1 h at 120 ° C., and the amount of catalyst is less, which greatly reduces the energy consumption in the prior art. In addition, the zirconium phosphotungstate prepared by the invention is easy to separate, has good stability for catalyzing the hydrogenation of furfural to furfuryl alcohol, and is a new, efficient and green catalyst.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: March 26, 2024
    Assignee: JIANGNAN UNIVERSITY
    Inventors: Liping Zhang, Haijun Wang, Guangzhi Xu, Chen Liu
  • Publication number: 20240073287
    Abstract: Embodiments of the present disclosure provide a method for activating at least a first edge server and a second edge server. The first edge server includes a first service processor, and the second edge server includes a second service processor. The method includes establishing a data communication connection between the first service processor and the second service processor, establishing a data communication connection between the first service processor and a specified website, establishing a trusted communication between the first service processor and the specified website, establishing a trusted communication between the first service processor and the second service processor, obtaining an activation right from the specified website by the first service processor, and performing the activation right to activate the first edge server and the second edge server by the first service processor.
    Type: Application
    Filed: August 31, 2023
    Publication date: February 29, 2024
    Inventors: Ming LEI, Haijun XU, Zhipeng GAO, Da LI, Shaohua LI
  • Patent number: 11888651
    Abstract: A first network device includes a processor and a memory having instructions stored thereon that, when executed by the processor, cause the first network device to: obtain a first virtual private network (VPN) route sent by a second network device. The first VPN route includes first identification information that uniquely identifies a first VPN instance in the second network device. The first network device is also caused to generate a second VPN route according to a second VPN instance accessing a third network device and the first VPN route. The second VPN route carries second identification information and routing information of the first VPN route. The second identification information uniquely identifies the second VPN instance in the third network device. The first identification information is different from the second identification information. The first network device is further caused to send the second VPN route to the third network device.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: January 30, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shunwan Zhuang, Haijun Xu, Haibo Wang, Zhenbin Li, Jia Che, Shuanglong Chen
  • Patent number: 11855876
    Abstract: A method includes: establishing, by a first network device, a first BMP session with a second network device, and establishing a second BMP session with a third network device; receiving a first BGP route set sent by the second network device, where the first BGP route set includes a BGP route sent by the second network device to the third network device; receiving a second BGP route set sent by the third network device, where the second BGP route set includes the BGP route received by the third network device from the second network device; and when detecting that the second BGP route set includes a first BGP route but the first BGP route set does not include the first BGP route, determining the first BGP route as an unavailable route.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: December 26, 2023
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haijun Xu, Shunwan Zhuang, Haibo Wang
  • Publication number: 20230168948
    Abstract: Disclosed are a routing information transmission method and apparatus, and a communication system, and belong to the field of communication technologies. The routing information transmission method is applied to a system including data middleware and a routing information base (RIB), and the data middleware communicates with the RIB. The data middleware may obtain routing information from the RIB, and send the routing information obtained from the RIB to a third-party consumer device. In addition, the data middleware may also obtain routing information from a third-party producer device, and send the routing information obtained from the third-party producer device to the RIB. Therefore, according to technical solutions provided herein, the routing information included in the RIB is openly exported, and the routing information generated by the third-party producer device is imported into the RIB.
    Type: Application
    Filed: January 27, 2023
    Publication date: June 1, 2023
    Inventors: Haijun Xu, Feng Guo, Xudong Zhang, Rong Jiang, Peng Zhang
  • Publication number: 20230095362
    Abstract: A standby routing fault-tolerance unit obtains a plurality of inbound routing packets of a first routing processing unit by using a forwarding unit and an active database unit. The first routing processing unit is a routing processing unit corresponding to an active routing fault-tolerance unit. The standby routing fault-tolerance unit sends the plurality of inbound routing packets of the first routing processing unit to a second routing processing unit. The second routing processing unit is a routing processing unit corresponding to the standby routing fault-tolerance unit.
    Type: Application
    Filed: December 2, 2022
    Publication date: March 30, 2023
    Inventors: Jianbin Xu, Feng Guo, Xudong Zhang, Haijun Xu, Hua Zhao
  • Publication number: 20230086664
    Abstract: In a route management method, a configuration distribution device may create a route processing unit in at least one route processing device when there is a route management requirement, determine a route processing unit corresponding to each to-be-processed target private network, and then send configuration information of each target private network to a corresponding route processing unit, so that the route processing unit processes a route of a corresponding target private network. The at least one route processing device is created in real time based on the route management requirement, and each route processing unit can independently complete route receiving and sending and route selection of a corresponding target private network.
    Type: Application
    Filed: November 23, 2022
    Publication date: March 23, 2023
    Inventors: Chenyu Jin, Shenzu Qin, Haijun Xu, Yueqi Liang, Hongyang Wu
  • Publication number: 20230079949
    Abstract: This application provides a protocol packet processing method, a network device, and a computer storage medium. The method includes a first network device receives a first protocol packet, and the first network device processes the first protocol packet based on a first quantity, the first protocol packet, and a trustworthiness set, where the first quantity includes a quantity of protocol packets stored in the first network device or a quantity of routes stored in the first network device.
    Type: Application
    Filed: November 11, 2022
    Publication date: March 16, 2023
    Inventors: Xudong Zhang, Feng Guo, Peng Zhang, Haijun Xu
  • Publication number: 20230013366
    Abstract: A method includes: establishing, by a first network device, a first BMP session with a second network device, and establishing a second BMP session with a third network device; receiving a first BGP route set sent by the second network device, where the first BGP route set includes a BGP route sent by the second network device to the third network device; receiving a second BGP route set sent by the third network device, where the second BGP route set includes the BGP route received by the third network device from the second network device; and when detecting that the second BGP route set includes a first BGP route but the first BGP route set does not include the first BGP route, determining the first BGP route as an unavailable route.
    Type: Application
    Filed: September 23, 2022
    Publication date: January 19, 2023
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haijun Xu, Shunwan Zhuang, Haibo Wang
  • Publication number: 20230004682
    Abstract: Tamper detection systems and methods for electronic devices carried by mobile equipment are disclosed. According to an aspect, a system includes an electronic device and a first sensor attached to the electronic device for detecting motion of the electronic device. The system includes a second sensor configured to detect motion of the mobile equipment to which the electronic device is attached. A tamper detection module receives data from the first sensor that indicates the detected motion of the electronic device. The tamper detection module receives data from the second sensor that indicates the detected motion of the mobile equipment. Further, the tamper detection module determines a difference between the detected motion of the electronic device and the detected motion of the mobile equipment. The tamper detection module determines a tamper condition for the electronic device based on the determined difference. A security action in response to determining the tamper condition.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 5, 2023
    Inventors: Fred Allison Bower, III, Caihong Zhang, Hui Zeng, Haijun Xu
  • Publication number: 20220329458
    Abstract: A first network device includes a processor and a memory having instructions stored thereon that, when executed by the processor, cause the first network device to: obtain a first virtual private network (VPN) route sent by a second network device. The first VPN route includes first identification information that uniquely identifies a first VPN instance in the second network device. The first network device is also caused to generate a second VPN route according to a second VPN instance accessing a third network device and the first VPN route. The second VPN route carries second identification information and routing information of the first VPN route. The second identification information uniquely identifies the second VPN instance in the third network device. The first identification information is different from the second identification information. The first network device is further caused to send the second VPN route to the third network device.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 13, 2022
    Inventors: Shunwan ZHUANG, Haijun XU, Haibo WANG, Zhenbin LI, Jia CHE, Shuanglong CHEN
  • Patent number: 11463345
    Abstract: A method includes: establishing, by a first network device, a first BMP session with a second network device, and establishing a second BMP session with a third network device; receiving a first BGP route set sent by the second network device, where the first BGP route set includes a BGP route sent by the second network device to the third network device; receiving a second BGP route set sent by the third network device, where the second BGP route set includes the BGP route received by the third network device from the second network device; and when detecting that the second BGP route set includes a first BGP route but the first BGP route set does not include the first BGP route, determining the first BGP route as an unavailable route.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: October 4, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haijun Xu, Shunwan Zhuang, Haibo Wang
  • Patent number: 11411774
    Abstract: A first network device includes a processor and a memory having computer readable instructions stored thereon that, when executed by the processor, cause the first network device to obtain a Flow Specification (FlowSpec) rule with redirect indication information. The redirect indication information includes identification information identifying a first virtual private network (VPN) instance configured on a second network device. The indication information also includes instructions for the second network device to redirect data stream matching the FlowSpec rule to the first VPN instance. The first network device is also caused to advertise the FlowSpec rule with the redirect indication information to the second network device.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: August 9, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shunwan Zhuang, Haijun Xu, Haibo Wang, Zhenbin Li, Jia Che, Shuanglong Chen
  • Patent number: 11244237
    Abstract: Implementations for determining deployment need for a point of interest (POI) are disclosed. In one implementation, the deployment need for a POI is determined by: receiving geographical locations of one or more users, determining, based on the geographical locations, one or more target users covered by an area to be inspected, determining one or more POI deployment need indexes of the one or more target users, a POI deployment need index of a target user being determined based on a number of POIs that have the preset function of the POI and were deployed within a set distance from the target user, and providing a total deployment need index for the area to be inspected, the total deployment need index being determined based on the one or more POI deployment need indexes.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: February 8, 2022
    Assignee: Advanced New Technologies Co., Ltd.
    Inventors: Hanrui Zhang, Mingxu Shao, Shaoli Qian, Haoyuan Pan, Haijun Xu, Di Xu
  • Publication number: 20220006720
    Abstract: In a routing information management method, a primary route generation unit generates routing information related to a TCP packet, and the primary route generation unit sends the routing information and first identification information of the routing information to a database unit, where the first identification information is determined based on the TCP packet.
    Type: Application
    Filed: September 10, 2021
    Publication date: January 6, 2022
    Inventors: Haijun Xu, Xudong Zhang, Rong Jiang, Feng Guo, Yi Xiong
  • Publication number: 20210258241
    Abstract: A routing processing method implemented by a first network device, where a plurality of routing processing components run on the first network device and implement a same routing processing function. The method includes obtaining, from the routing processing components, routing processing results based on same input routing information, analyzing the routing processing results to obtain an analysis result, selecting, based on the analysis result, a first routing processing result from the routing processing results, and executing a corresponding action based on the first routing processing result.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 19, 2021
    Inventors: Xudong Zhang, Rong Jiang, Haijun Xu, Feng Guo, Yi Xiong
  • Publication number: 20210135975
    Abstract: A method includes: establishing, by a first network device, a first BMP session with a second network device, and establishing a second BMP session with a third network device; receiving a first BGP route set sent by the second network device, where the first BGP route set includes a BGP route sent by the second network device to the third network device; receiving a second BGP route set sent by the third network device, where the second BGP route set includes the BGP route received by the third network device from the second network device; and when detecting that the second BGP route set includes a first BGP route but the first BGP route set does not include the first BGP route, determining the first BGP route as an unavailable route.
    Type: Application
    Filed: January 11, 2021
    Publication date: May 6, 2021
    Applicant: HUAWEI TECHNOLOGIES CO.,LTD.
    Inventors: Haijun Xu, Shunwan Zhuang, Haibo Wang
  • Patent number: 10892977
    Abstract: A method includes: establishing, by a first network device, a first BMP session with a second network device, and establishing a second BMP session with a third network device; receiving a first BGP route set sent by the second network device, where the first BGP route set includes a BGP route sent by the second network device to the third network device; receiving a second BGP route set sent by the third network device, where the second BGP route set includes the BGP route received by the third network device from the second network device; and when detecting that the second BGP route set includes a first BGP route but the first BGP route set does not include the first BGP route, determining the first BGP route as an unavailable route.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: January 12, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Haijun Xu, Shunwan Zhuang, Haibo Wang
  • Publication number: 20200412579
    Abstract: A first network device includes a processor and a memory having computer readable instructions stored thereon that, when executed by the processor, cause the first network device to obtain a Flow Specification (FlowSpec) rule with redirect indication information. The redirect indication information includes identification information identifying a first virtual private network (VPN) instance configured on a second network device. The indication information also includes instructions for the second network device to redirect data stream matching the FlowSpec rule to the first VPN instance. The first network device is also caused to advertise the FlowSpec rule with the redirect indication information to the second network device.
    Type: Application
    Filed: September 14, 2020
    Publication date: December 31, 2020
    Inventors: Shunwan ZHUANG, Haijun XU, Haibo WANG, Zhenbin LI, Jia CHE, Shuanglong CHEN
  • Patent number: 10797911
    Abstract: A first network device includes a processor configured to analyze a data stream entering a network on which the first network device is located to obtain a traffic characteristic of a target data stream, and advertise a Flow Specification (FlowSpec) route, where the FlowSpec route carries redirect indication information, the redirect indication information includes identification information, the identification information is used to uniquely identify a first virtual private network (VPN) instance in a second network device, the redirect indication information instructing to redirect the data stream including the traffic characteristic of the target data stream to the first VPN instance, the second network device is an edge device of a service provider network accessed by the network, and the first VPN instance is a target VPN instance to which the target data stream is redirected in the second network device.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 6, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shunwan Zhuang, Haijun Xu, Haibo Wang, Zhenbin Li, Jia Che, Shuanglong Chen