Patents by Inventor Bifeng Xie

Bifeng Xie 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).

  • Method for switching service option to circuit data
    Patent number: 8199694
    Abstract: This invention discloses a method for switching SO (Service Option) to circuit data, including the following steps: step 1, a mobile station notifies a source BS (Base Station) and/or a target BS to switch SO to circuit data during a session; step 2, the source BS and/or the target BS negotiates with a mobile switching subsystem about switching SO to circuit data, and determines the bearer format parameters of the session through the negotiation; step 3, the source BS and/or the target BS makes a secondary service negotiation with the mobile station after the negotiation with the mobile switching subsystem succeeds; and step 4, after the negotiation with the mobile station succeeds, the source BS and/or the target BS conducts user interface service layer encapsulation on the circuit data according to a certain load format, and then transmits the encapsulated Real Time Transfer Protocol packets to the other BS.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: June 12, 2012
    Assignee: ZTE Corporation
    Inventors: Zhihui Zhang, Bifeng Xie, Donghua Lu, Jian Cao, Wanchun Zhang
  • Method for Switching Service Option to Circuit Data
    Publication number: 20100316023
    Abstract: This invention discloses a method for switching SO (Service Option) to circuit data, including the following steps: step 1, a mobile station notifies a source BS (Base Station) and/or a target BS to switch SO to circuit data during a session; step 2, the source BS and/or the target BS negotiates with a mobile switching subsystem about switching SO to circuit data, and determines the bearer format parameters of the session through the negotiation; step 3, the source BS and/or the target BS makes a secondary service negotiation with the mobile station after the negotiation with the mobile switching subsystem succeeds; and step 4, after the negotiation with the mobile station succeeds, the source BS and/or the target BS conducts user interface service layer encapsulation on the circuit data according to a certain load format, and then transmits the encapsulated Real Time Transfer Protocol packets to the other BS.
    Type: Application
    Filed: December 13, 2006
    Publication date: December 16, 2010
    Applicant: ZTE CORPORATION
    Inventors: Zhihui Zhang, Bifeng Xie, Donghua Lu, Jian Cao, Wanchun Zhang