Patents by Inventor Zhehui Zhang

Zhehui Zhang 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: 11659238
    Abstract: Aspects of the subject disclosure may include, for example, receiving, over a communication network, a plurality of requests for frames of video content to provide to a mobile device. Further embodiments can include determining a first portion of the plurality of requests are for pre-fetch frames of the video content, and providing, over the communication network, the pre-fetch frames to the mobile device over a default bearer path. Additional embodiments can include determining a second portion of the plurality of requests are for emergent frames of the video content, and providing, over the communication network, the emergent frames to the mobile device over a dedicated bearer path. Other embodiments are disclosed.
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: May 23, 2023
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Zhehui Zhang, Shu Shi, Rittwik Jana, Varun Gupta
  • Publication number: 20230136356
    Abstract: To meet the stringent 5G radio access network (RAN) service requirements, layers one and two need to be processed in essentially real time. Thus, prompt anomaly detection is important to prevent negative impacts on customer experience, which is critical for mobile networks to meet the stringent service requirements. However, monitoring networks for anomalies is difficult due at least to (1) the resource constrained edge deployments in which the vRAN resides, (2) the variety of anomaly types and fault locations making anomalies difficult to detect, and (3) the low frequency of anomalies leading to unbalanced data sets for training, among others. The present application addresses these issues by decoupling anomaly detection at the infrastructure layer (servers, NICs, switches, etc.) from anomaly detection at the VNF layer (L1, high-DU, CU). This enables different techniques for identifying anomalies and for reducing the monitoring overhead that is tailored to each layer.
    Type: Application
    Filed: January 18, 2022
    Publication date: May 4, 2023
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Xenofon FOUKAS, Zhehui ZHANG, Bozidar RADUNOVIC
  • Publication number: 20230013625
    Abstract: Aspects of the subject disclosure may include, for example, receiving, over a communication network, a plurality of requests for frames of video content to provide to a mobile device. Further embodiments can include determining a first portion of the plurality of requests are for pre-fetch frames of the video content, and providing, over the communication network, the pre-fetch frames to the mobile device over a default bearer path. Additional embodiments can include determining a second portion of the plurality of requests are for emergent frames of the video content, and providing, over the communication network, the emergent frames to the mobile device over a dedicated bearer path. Other embodiments are disclosed.
    Type: Application
    Filed: September 15, 2022
    Publication date: January 19, 2023
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Zhehui Zhang, Shu Shi, Rittwik Jana, Varun Gupta
  • Patent number: 11490158
    Abstract: Aspects of the subject disclosure may include, for example, receiving, over a communication network, a plurality of requests for frames of video content to provide to a mobile device. Further embodiments can include determining a first portion of the plurality of requests are for pre-fetch frames of the video content, and providing, over the communication network, the pre-fetch frames to the mobile device over a default bearer path. Additional embodiments can include determining a second portion of the plurality of requests are for emergent frames of the video content, and providing, over the communication network, the emergent frames to the mobile device over a dedicated bearer path. Other embodiments are disclosed.
    Type: Grant
    Filed: October 1, 2021
    Date of Patent: November 1, 2022
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Zhehui Zhang, Shu Shi, Rittwik Jana, Varun Gupta
  • Patent number: 11394814
    Abstract: One embodiment described herein provides a system and method for path control in a network. During operation, in response to determining that a path-control condition is met, an end host in the network can determine an offset value to be applied to a packet header of a packet, modify the packet header by applying the determined offset value, and forward the packet based on the modified packet header.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: July 19, 2022
    Assignee: Alibaba Group Holding Limited
    Inventors: Zhehui Zhang, Xiangning Yu, Haiyong Wang, Haiyang Zheng, Jiayao Hu, Guohui Wang
  • Publication number: 20220021932
    Abstract: Aspects of the subject disclosure may include, for example, receiving, over a communication network, a plurality of requests for frames of video content to provide to a mobile device. Further embodiments can include determining a first portion of the plurality of requests are for pre-fetch frames of the video content, and providing, over the communication network, the pre-fetch frames to the mobile device over a default bearer path. Additional embodiments can include determining a second portion of the plurality of requests are for emergent frames of the video content, and providing, over the communication network, the emergent frames to the mobile device over a dedicated bearer path. Other embodiments are disclosed.
    Type: Application
    Filed: October 1, 2021
    Publication date: January 20, 2022
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Zhehui Zhang, Shu Shi, Rittwik Jana, Varun Gupta
  • Publication number: 20210368029
    Abstract: One embodiment described herein provides a system and method for path control in a network. During operation, in response to determining that a path-control condition is met, an end host in the network can determine an offset value to be applied to a packet header of a packet, modify the packet header by applying the determined offset value, and forward the packet based on the modified packet header.
    Type: Application
    Filed: May 20, 2020
    Publication date: November 25, 2021
    Applicant: Alibaba Group Holding Limited
    Inventors: Zhehui Zhang, Xiangning Yu, Haiyong Wang, Haiyang Zheng, Jiayao Hu, Guohui Wang
  • Patent number: 11166068
    Abstract: Aspects of the subject disclosure may include, for example, receiving, over a communication network, a plurality of requests for frames of video content to provide to a mobile device. Further embodiments can include determining a first portion of the plurality of requests are for pre-fetch frames of the video content, and providing, over the communication network, the pre-fetch frames to the mobile device over a default bearer path. Additional embodiments can include determining a second portion of the plurality of requests are for emergent frames of the video content, and providing, over the communication network, the emergent frames to the mobile device over a dedicated bearer path. Other embodiments are disclosed.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: November 2, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Zhehui Zhang, Shu Shi, Rittwik Jana, Varun Gupta
  • Publication number: 20210185394
    Abstract: Aspects of the subject disclosure may include, for example, receiving, over a communication network, a plurality of requests for frames of video content to provide to a mobile device. Further embodiments can include determining a first portion of the plurality of requests are for pre-fetch frames of the video content, and providing, over the communication network, the pre-fetch frames to the mobile device over a default bearer path. Additional embodiments can include determining a second portion of the plurality of requests are for emergent frames of the video content, and providing, over the communication network, the emergent frames to the mobile device over a dedicated bearer path. Other embodiments are disclosed.
    Type: Application
    Filed: March 2, 2021
    Publication date: June 17, 2021
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Zhehui Zhang, Shu Shi, Rittwik Jana, Varun Gupta
  • Patent number: 10972789
    Abstract: Aspects of the subject disclosure may include, for example, receiving, over a communication network, a plurality of requests for frames of video content to provide to a mobile device. Further embodiments can include determining a first portion of the plurality of requests are for pre-fetch frames of the video content, and providing, over the communication network, the pre-fetch frames to the mobile device over a default bearer path. Additional embodiments can include determining a second portion of the plurality of requests are for emergent frames of the video content, and providing, over the communication network, the emergent frames to the mobile device over a dedicated bearer path. Other embodiments are disclosed.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: April 6, 2021
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Zhehui Zhang, Shu Shi, Rittwik Jana, Varun Gupta
  • Publication number: 20200382835
    Abstract: Aspects of the subject disclosure may include, for example, receiving, over a communication network, a plurality of requests for frames of video content to provide to a mobile device. Further embodiments can include determining a first portion of the plurality of requests are for pre-fetch frames of the video content, and providing, over the communication network, the pre-fetch frames to the mobile device over a default bearer path. Additional embodiments can include determining a second portion of the plurality of requests are for emergent frames of the video content, and providing, over the communication network, the emergent frames to the mobile device over a dedicated bearer path. Other embodiments are disclosed.
    Type: Application
    Filed: June 3, 2019
    Publication date: December 3, 2020
    Applicant: AT&T Intellectual Property I, L.P.
    Inventors: Zhehui Zhang, Shu Shi, Rittwik Jana, Varun Gupta