Patents by Inventor Tian Bu

Tian Bu 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).

  • Publication number: 20230289661
    Abstract: The disclosed technology relates identifying causes of an observed outcome. A system is configured to receive an indication of a user experience problem, wherein the user experience problem is associated with observed operations data including an observed outcome. The system generates, based on the observed operations data, a predicted outcome according to a model, determines that the observed outcome is within range of the predicted outcome, and identifies a set of candidate causes of the user experience problem when the observed outcome is within range of the predicted outcome.
    Type: Application
    Filed: March 7, 2023
    Publication date: September 14, 2023
    Inventors: Harish Doddala, Tian Bu, Tej Redkar
  • Publication number: 20220067587
    Abstract: The disclosed technology relates identifying causes of an observed outcome. A system is configured to receive an indication of a user experience problem, wherein the user experience problem is associated with observed operations data including an observed outcome. The system generates, based on the observed operations data, a predicted outcome according to a model, determines that the observed outcome is within range of the predicted outcome, and identifies a set of candidate causes of the user experience problem when the observed outcome is within range of the predicted outcome.
    Type: Application
    Filed: November 10, 2021
    Publication date: March 3, 2022
    Inventors: Harish Doddala, Tian Bu, Tej Redkar
  • Publication number: 20220004931
    Abstract: The disclosed technology relates identifying causes of an observed outcome. A system is configured to receive an indication of a user experience problem, wherein the user experience problem is associated with observed operations data including an observed outcome. The system generates, based on the observed operations data, a predicted outcome according to a model, determines that the observed outcome is within range of the predicted outcome, and identifies a set of candidate causes of the user experience problem when the observed outcome is within range of the predicted outcome.
    Type: Application
    Filed: September 21, 2021
    Publication date: January 6, 2022
    Inventors: Harish Doddala, Tian Bu, Tej Redkar
  • Patent number: 11132620
    Abstract: The disclosed technology relates identifying causes of an observed outcome. A system is configured to receive an indication of a user experience problem, wherein the user experience problem is associated with observed operations data including an observed outcome. The system generates, based on the observed operations data, a predicted outcome according to a model, determines that the observed outcome is within range of the predicted outcome, and identifies a set of candidate causes of the user experience problem when the observed outcome is within range of the predicted outcome.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: September 28, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Harish Doddala, Tian Bu, Tej Redkar
  • Publication number: 20210227351
    Abstract: In one embodiment, a method for user performance journey monitoring is disclosed. The method illustratively comprises receiving, by a process, user journey information associated with an application and a plurality of application end users, the user journey information indicative of navigation paths of the application end users among a plurality of nodes configured to perform at least a part of the application; receiving, by the process, performance metric information indicative of performance of the plurality of nodes configured to perform at least the part of the application; correlating, by the process, the user journey information with the performance metric information based on one or more query criteria; and storing, by the process, the correlated user journey information and performance metric information in an application end user journey database indexed by the one or more query criteria.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 22, 2021
    Inventors: Xiaochun Mei, Tian Bu, Swathi Bhat, Jia Xu, Anupam Jindal, Puneet Anand
  • Publication number: 20180308001
    Abstract: The disclosed technology relates identifying causes of an observed outcome. A system is configured to receive an indication of a user experience problem, wherein the user experience problem is associated with observed operations data including an observed outcome. The system generates, based on the observed operations data, a predicted outcome according to a model, determines that the observed outcome is within range of the predicted outcome, and identifies a set of candidate causes of the user experience problem when the observed outcome is within range of the predicted outcome.
    Type: Application
    Filed: April 20, 2017
    Publication date: October 25, 2018
    Inventors: Harish Doddala, Tian Bu, Tej Redkar
  • Publication number: 20180276553
    Abstract: The disclosed technology relates to machine learning and statistical models. A system is configured to receive a user statement comprising a request for information and identify an intent type and one or more parameters based on the user statement. The system selects a model from the model registry based on the intent type and the one or more parameters, obtains a result based on invoking the selected model using the one or more parameters, and provides the result to the user.
    Type: Application
    Filed: March 22, 2017
    Publication date: September 27, 2018
    Inventors: Tej Redkar, Tian Bu, Harish Doddala
  • Patent number: 9258218
    Abstract: A software-defined network overlay capability is configured to control one or more overlay networks using software-defined networking (SDN) in which control functions and forwarding functions are separated. The software-defined network overlay capability may be configured to vertically move packets across network layers, e.g., into an overlay network (e.g., into a tunnel via encapsulation), out of an overlay network (e.g., out of a tunnel via decapsulation), or the like. The software-defined network overlay capability may be configured to move packets from native forwarding infrastructure into an overlay network, between overlay networks (e.g., into a first overlay network from a second overlay network without leaving the second overlay network, out of a first overlay network and into a second overlay network, out of a first overlay network while remaining within a second overlay network, or the like), from an overlay network onto native forwarding infrastructure, or the like.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: February 9, 2016
    Assignee: Alcatel Lucent
    Inventors: Georg Hampel, Moritz Steiner, Tian Bu
  • Publication number: 20150215328
    Abstract: Wireless state information collected or inferred from a 3G wireless network is used to detect and prevent malicious attacks against the network.
    Type: Application
    Filed: January 14, 2015
    Publication date: July 30, 2015
    Applicant: Alcatel-Lucent USA Inc.
    Inventors: Tian Bu, Samphel Norden, Thomas Y. Woo
  • Patent number: 9069962
    Abstract: A method and computer product are presented for identifying Internet worm propagation based upon changes in packet arrival rates at a network connection. First, unsolicited (i.e., packets that were not requested by the receiver) traffic is separated from solicited traffic at the network connection. The unsolicited traffic arrival patterns are monitored and analyzed for any changes. Once changes in the unsolicited traffic arrival patterns are detected, the changes are mathematically analyzed to detect growth trends. The presence of growth trends that follow certain key characteristics indicate whether the changes are due to worm propagation.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: June 30, 2015
    Assignee: Alcatel Lucent
    Inventors: Tian Bu, Aiyou Chen, Scott Alan Vander Wiel, Thomas Woo
  • Patent number: 9036540
    Abstract: The present invention relates to a correlation module for correlating IP layer traffic and wireless layer network elements in a network. According to an example embodiment, the correlation module includes an RNC analyzer, a Gn snoop unit, and/or a mapping unit. The RNC analyzer is configured to collect wireless layer network element information from at least one RNC. The Gn snoop unit is configured to collect wireless layer network element information and IP layer traffic information from at least one Gn interface between a serving GPRS support node and a gateway GPRS support node. The mapping unit is configured to map the IP layer traffic and the wireless layer network elements in the network based on the collected IP layer traffic information and the collected wireless layer network element information. A method of correlating IP layer traffic and wireless layer network elements in a network is also disclosed.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: May 19, 2015
    Assignee: Alcatel Lucent
    Inventors: Tian Bu, Ruth Schaefer Gayde, Scott C. Miller, Kathleen Ellen Moczulewski, Alex Ibrahim Moukalled, Samphel Norden
  • Publication number: 20150067814
    Abstract: Novel, Internet-related architectures, methods and devices are proposed that are based on a fundamentally different philosophy: hosts (e.g., source and destination nodes) are given the ability to specify their access control policies to the network they are a part of, and the network enforces these policies. The architecture proposed is mobility friendly to the ever increasing number of mobile hosts and is scalable as well.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 5, 2015
    Applicant: ALCATEL-LUCENT USA INC.
    Inventors: Tian Bu, Li Li, Ramachandran Ramjee
  • Patent number: 8966270
    Abstract: Novel, Internet-related architectures, methods and devices are proposed that are based on a fundamentally different philosophy: hosts (e.g., source and destination nodes) are given the ability to specify their access control policies to the network they are a part of, and the network enforces these policies. The architecture proposed is mobility friendly to the ever increasing number of mobile hosts and is scalable as well.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: February 24, 2015
    Assignee: Alcatel Lucent
    Inventors: Tian Bu, Li Li, Ramachandran Ramjee
  • Patent number: 8965334
    Abstract: Wireless state information collected or inferred from a 3G wireless network is used to detect and prevent malicious attacks against the network.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: February 24, 2015
    Assignee: Alcatel Lucent
    Inventors: Tian Bu, Samphel Norden, Thomas Y. Woo
  • Publication number: 20140329525
    Abstract: The transmission of data from base stations to users (and their devices) in a wireless network is made using proportional fairness without sacrificing throughput by taking in to account fairness considerations at the time the devices are associated with a base station.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 6, 2014
    Applicant: Alcatel-Lucent USA INC.
    Inventors: Tian Bu, Li Li, Ramachandran Ramjee
  • Patent number: 8837483
    Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: identifying, at the network node, a packet associated with a first address; determining, at the network node, that an alternate address mapping is unknown to the network node for the first address; generating a request message based on at least a portion of the packet; transmitting the request message to a different node; receiving a response message, the response message including a second address, wherein the second address is an alternative address for the first address; and storing the first address and the second address together as an alternate address mapping.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: September 16, 2014
    Assignee: Alcatel Lucent
    Inventors: Tian Bu, Yao Zhao
  • Patent number: 8811354
    Abstract: The transmission of data from base stations to users (and their devices) in a wireless network is made using proportional fairness without sacrificing throughput by taking in to account fairness considerations at the time the devices are associated with a base station.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: August 19, 2014
    Assignee: Alcatel Lucent
    Inventors: Tian Bu, Li Li, Ramachandran Ramjee
  • Publication number: 20140181978
    Abstract: A method and computer product are presented for identifying Internet worm propagation based upon changes in packet arrival rates at a network connection. First, unsolicited (i.e., packets that were not requested by the receiver) traffic is separated from solicited traffic at the network connection. The unsolicited traffic arrival patterns are monitored and analyzed for any changes. Once changes in the unsolicited traffic arrival patterns are detected, the changes are mathematically analyzed to detect growth trends. The presence of growth trends that follow certain key characteristics indicate whether the changes are due to worm propagation.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 26, 2014
    Applicant: ALCATEL-LUCENT USA INC.
    Inventors: Tian BU, Aiyou CHEN, Scott Alan VANDER WIEL, Thomas WOO
  • Patent number: 8751737
    Abstract: An apparatus and method for improving synchronization between threads in a multi-core processor system are provided. An apparatus includes a memory, a first processor core, and a second processor core. The memory includes a shared ring buffer for storing data units, and stores a plurality of shared variables associated with accessing the shared ring buffer. The first processor core runs a first thread and has a first cache associated therewith. The first cache stores a first set of local variables associated with the first processor core. The first thread controls insertion of data items into the shared ring buffer using at least one of the shared variables and the first set of local variables. The second processor core runs a second thread and has a second cache associated therewith. The second cache stores a second set of local variables associated with the second processor core.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: June 10, 2014
    Assignee: Alcatel Lucent
    Inventors: Tian Bu, Girish Chandranmenon, Pak-Ching Lee
  • Publication number: 20140153572
    Abstract: A software-defined network overlay capability is configured to control one or more overlay networks using software-defined networking (SDN) in which control functions and forwarding functions are separated. The software-defined network overlay capability may be configured to vertically move packets across network layers, e.g., into an overlay network (e.g., into a tunnel via encapsulation), out of an overlay network (e.g., out of a tunnel via decapsulation), or the like. The software-defined network overlay capability may be configured to move packets from native forwarding infrastructure into an overlay network, between overlay networks (e.g., into a first overlay network from a second overlay network without leaving the second overlay network, out of a first overlay network and into a second overlay network, out of a first overlay network while remaining within a second overlay network, or the like), from an overlay network onto native forwarding infrastructure, or the like.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Inventors: Georg Hampel, Moritz Steiner, Tian Bu