Patents by Inventor Chun Guang Xu

Chun Guang 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: 8260255
    Abstract: In an example method of configuring an adaptive module for an offline charging system, a selection is received which selects one of a plurality of charging functions. In an example, the selection is received in response to a user prompt. In another example, the plurality of charging functions includes a charging data function (CDF), a charging gateway function (CGF), an integrated CDF/CGF without Ga interface support and an integrated CDF/CGF with Ga interface support. An adaptive module is configured to conform with the selected charging function. The adaptive module has the capacity to conform to any one of the plurality of charging functions. For example, the adaptive module includes a number of program modules and the configuring step selects which of the program modules are enabled and an order in which the enabled program modules are to be executed. The configured adaptive module is executed at a physical entity (e.g., a CDF, a CGF, etc.) within the offline charging system.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: September 4, 2012
    Assignee: Alcatel Lucent
    Inventors: Yigang Cai, Chun Guang Xu, Sheng Chen, Hong Wei Sun
  • Patent number: 8218742
    Abstract: In an example method of correlating charging data records within an offline charging system, each of a plurality of sources selects a same one of a plurality of charging functions in which to route charging information associated with a given call session or event. In an example, the plurality of sources corresponds to either a plurality of network elements or a plurality of charging data functions. In another example, the plurality of charging functions corresponds to either a plurality of charging data functions or a plurality of charging gateway functions. At the selected charging function, the routed charging information is correlated.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: July 10, 2012
    Assignee: Alcatel Lucent
    Inventors: Yigang Cai, Chun Guang Xu, Sheng Chen, Hong Wei Sun
  • Publication number: 20080182549
    Abstract: In an example method of configuring an adaptive module for an offline charging system, a selection is received which selects one of a plurality of charging functions. In an example, the selection is received in response to a user prompt. In another example, the plurality of charging functions includes a charging data function (CDF), a charging gateway function (CGF), an integrated CDF/CGF without Ga interface support and an integrated CDF/CGF with Ga interface support. An adaptive module is configured to conform with the selected charging function. The adaptive module has the capacity to conform to any one of the plurality of charging functions. For example, the adaptive module includes a number of program modules and the configuring step selects which of the program modules are enabled and an order in which the enabled program modules are to be executed. The configured adaptive module is executed at a physical entity (e.g., a CDF, a CGF, etc.) within the offline charging system.
    Type: Application
    Filed: May 16, 2007
    Publication date: July 31, 2008
    Inventors: Yigang Cai, Chun Guang Xu, Sheng Chen, Hong Wei Sun
  • Publication number: 20080181378
    Abstract: In an example method of correlating charging data records within an offline charging system, each of a plurality of sources selects a same one of a plurality of charging functions in which to route charging information associated with a given call session or event. In an example, the plurality of sources corresponds to either a plurality of network elements or a plurality of charging data functions. In another example, the plurality of charging functions corresponds to either a plurality of charging data functions or a plurality of charging gateway functions. At the selected charging function, the routed charging information is correlated.
    Type: Application
    Filed: August 16, 2007
    Publication date: July 31, 2008
    Inventors: Yigang Cai, Chun Guang Xu, Sheng Chen, Hong Wei Sun
  • Publication number: 20080082455
    Abstract: A system and methods for communicating charging data records (CDRs) used to bill for services provided by an Internet Protocol Multimedia Subsystem (IMS). The methods provide a removed field indication in reduced partial CDRs as well as an improved redundancy mechanism for communicating partial CDRs.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 3, 2008
    Inventors: Yigang Cai, Chun Guang Xu
  • Publication number: 20080080372
    Abstract: A system and method for policy management based routing and filtering of charging data records (CDRs) used to bill for services provided by an Internet Protocol Multimedia Subsystem (IMS). The system includes a Vortex Rule Engine (VRE), which includes handling instructions for routing CDRs, and a CDR routing unit. The CDR routing unit receives a CDR, sends a query to the VRE for handling instructions relating to the received CDR, and routes the CDR based on the handling instructions received from the VRE in response to the query. The method includes the steps of receiving a CDR from a charging data function (CDF), sending a query relating to the CDR to a vortex rule engine (VRE), and routing the CDR to a storage location based on instructions received from the VRE.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 3, 2008
    Inventors: Yigang Cai, Yu Dong Li, Chun Guang Xu