Patents by Inventor Delong Tang

Delong Tang 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: 11228947
    Abstract: A network slice deployment method is provided. Under the method, a network device receives a first request message instructing to deploy a target network slice for providing a target service to the terminal device, from a terminal device. The network device sends a second request message to the management function entity for indicating the target network slice information. The network device receives a second response message indicating that the target network slice has been completely deployed.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: January 18, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Delong Tang, Ruiyue Xu
  • Publication number: 20200236594
    Abstract: A network slice deployment method is provided. Under the method, a network device receives a first request message instructing to deploy a target network slice for providing a target service to the terminal device, from a terminal device. The network device sends a second request message to the management function entity for indicating the target network slice information. The network device receives a second response message indicating that the target network slice has been completely deployed.
    Type: Application
    Filed: March 25, 2020
    Publication date: July 23, 2020
    Inventors: Delong Tang, Ruiyue Xu
  • Patent number: 9258739
    Abstract: The present invention provides an offloading method and device for enhancing mobility, used for solving the technical problem of poor mobility in the current offloading and network construction solution. The present invention discloses that: a Network Address Translating (NAT) gateway is deployed in an upper layer of a Femto Node B; a dedicated tunnel for transmitting the offloading data between the Femto Node B and the NAT gateway is established; the NAT translation of the offloading data message is performed by the NAT gateway and the offloading data is forwarded through the dedicated tunnel according to a continuation relationship; when a User Equipment (UE) performs a handover across two Femto Node B's due to mobility, it is only necessary to modify the continuation relationship of the UE, without disconnecting and reconnecting the link of the offloading data stream, thereby improving the system's mobility.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: February 9, 2016
    Assignee: ZTE Corportation
    Inventor: Delong Tang
  • Patent number: 9113365
    Abstract: The present disclosure discloses a method and an apparatus for offloading Internet data in an access network, which are used for solving the technical problems that in a Network Address Translation (NAT) offloading networking solution, the information obtained in a monitor mode is incomplete, offloading characteristics for distinguishing users cannot be provided and offloading strategies are separated from Quality of Service (QoS) strategies of a core network. The solution of the present disclosure includes: an offloading device judges whether a Radio Access Bearer (RAB) data flow needs offloading according to a specific value of a specific parameter in an RAB message; if the offloading is needed, NAT is performed and then the offloaded data is transmitted to the Internet; and if the offloading is not needed, the RAB data flow is transparently transmitted to the core network.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: August 18, 2015
    Assignee: ZTE CORPORATION
    Inventors: Delong Tang, Zhigui Yuan
  • Patent number: 8837310
    Abstract: The invention provides a method and a system for determining an end time of uplink back propagation in a mobile communication system to solve a problem of accurately judging the end time of uplink back propagation, wherein the method includes the following steps: sending data with consecutive sequence numbers in a buffer of a packet data convergence protocol (PDCP) module to a serving gateway (S-GW) via an S1 tunnel; sending data with inconsecutive sequence numbers, which is from data with a first inconsecutive sequence number to last data in the buffer of the PDCP module, to a target base station via an uplink back propagation tunnel; generating an end marker datagram; sending the end marker datagram to the target base station via the uplink back propagation tunnel; and receiving, by the target base station, the end marker datagram and determining that the uplink back propagation has ended.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: September 16, 2014
    Assignee: ZTE Corporation
    Inventors: Dafei Wang, Delong Tang, Xiaoan Hou, Miao Li
  • Patent number: 8730996
    Abstract: The present invention discloses a method and device for reestablishment at packet data convergence protocol (PDCP) layer. On the receiving side of the PDCP layer, the method comprises: clearing resident control messages (501); processing resident service messages, and clearing feedback information generated during processing (502); and resetting a decompressor, and updating configuration of a decryption module (503). On the transmitting side of the PDCP layer, the method comprises: resetting a compressor, and updating configuration of an encryption module; clearing the resident control messages; and reprocessing the resident service messages. With the differentiated processing for the resident messages at the PDCP layer during the reestablishment, the present invention can avoid the abnormal mode switching of the compressor, and accelerate the user plane restoration after the reestablishment.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: May 20, 2014
    Assignee: ZTE Corporation
    Inventors: Bo Wang, Xiaoan Hou, Delong Tang, Miao Li
  • Publication number: 20130121171
    Abstract: The invention provides a method and a system for determining an end time of uplink back propagation in a mobile communication system to solve a problem of accurately judging the end time of uplink back propagation, wherein the method includes the following steps: sending data with consecutive sequence numbers in a buffer of a packet data convergence protocol (PDCP) module to a serving gateway (S-GW) via an S1 tunnel; sending data with inconsecutive sequence numbers, which is from data with a first inconsecutive sequence number to last data in the buffer of the PDCP module, to a target base station via an uplink back propagation tunnel; generating an end marker datagram; sending the end marker datagram to the target base station via the uplink back propagation tunnel; and receiving, by the target base station, the end marker datagram and determining that the uplink back propagation has ended.
    Type: Application
    Filed: March 24, 2010
    Publication date: May 16, 2013
    Applicant: ZTE CORPORATION
    Inventors: Dafei Wang, Delong Tang, Xiaoan Hou, Miao Li
  • Publication number: 20120307736
    Abstract: The present disclosure discloses a method and an apparatus for offloading Internet data in an access network, which are used for solving the technical problems that in a Network Address Translation (NAT) offloading networking solution, the information obtained in a monitor mode is incomplete, offloading characteristics for distinguishing users cannot be provided and offloading strategies are separated from Quality of Service (QoS) strategies of a core network. The solution of the present disclosure includes: an offloading device judges whether a Radio Access Bearer (RAB) data flow needs offloading according to a specific value of a specific parameter in an RAB message; if the offloading is needed, NAT is performed and then the offloaded data is transmitted to the Internet; and if the offloading is not needed, the RAB data flow is transparently transmitted to the core network.
    Type: Application
    Filed: April 22, 2011
    Publication date: December 6, 2012
    Applicant: ZTE Corporation
    Inventors: Delong Tang, Zhigui Yuan
  • Publication number: 20120295624
    Abstract: The present invention provides an offloading method and device for enhancing mobility, used for solving the technical problem of poor mobility in the current offloading and network construction solution. The present invention discloses that: a Network Address Translating (NAT) gateway is deployed in an upper layer of a Femto Node B; a dedicated tunnel for transmitting the offloading data between the Femto Node B and the NAT gateway is established; the NAT translation of the offloading data message is performed by the NAT gateway and the offloading data is forwarded through the dedicated tunnel according to a continuation relationship; when a User Equipment (UE) performs a handover across two Femto Node B's due to mobility, it is only necessary to modify the continuation relationship of the UE, without disconnecting and reconnecting the link of the offloading data stream, thereby improving the system's mobility.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 22, 2012
    Applicant: ZTE CORPORATION
    Inventor: Delong Tang
  • Publication number: 20120057546
    Abstract: The present invention discloses a method and device for reestablishment at packet data convergence protocol (PDCP) layer. On the receiving side of the PDCP layer, the method comprises: clearing resident control messages (501); processing resident service messages, and clearing feedback information generated during processing (502); and resetting a decompressor, and updating configuration of a decryption module (503). On the transmitting side of the PDCP layer, the method comprises: resetting a compressor, and updating configuration of an encryption module; clearing the resident control messages; and reprocessing the resident service messages. With the differentiated processing for the resident messages at the PDCP layer during the reestablishment, the present invention can avoid the abnormal mode switching of the compressor, and accelerate the user plane restoration after the reestablishment.
    Type: Application
    Filed: March 23, 2010
    Publication date: March 8, 2012
    Applicant: ZTE CORPORATION
    Inventors: Bo Wang, Xiaoan Hou, Delong Tang, Miao Li