Patents by Inventor Chunmiao LIU

Chunmiao LIU 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: 20220386183
    Abstract: Various embodiments of the present disclosure provide a method for call setup. The method which may be performed by a session management node comprises receiving an evolved packet system (EPS) fallback indicator from a mobility management node. In an embodiment, the EPS fallback indicator may indicate that a fallback to an EPS for an Internet protocol multimedia subsystem (IMS) voice service is ongoing. The method further comprises reporting an EPS fallback event to a policy charging node, according to the EPS fallback indicator.
    Type: Application
    Filed: October 23, 2020
    Publication date: December 1, 2022
    Inventors: Liangliang Guo, Chunmiao Liu, Liang Shi
  • Publication number: 20190037339
    Abstract: Embodiments of the present disclosure provide methods, apparatus and computer program product for facilitating location based services and/or location based policy control. A method at a first network node comprises receiving a message from a terminal connected to the first network node via non-3GPP access, the message including a local IP address or both the local IP address and a port number of the terminal; and sending geographical location related information of the terminal to an IMS network via at least a network node for policy control function of the IMS network. Methods at other network nodes and corresponding apparatus are also provided. With the embodiments, location based services and/or policy control may be provided to non-3GPP access devices.
    Type: Application
    Filed: January 29, 2016
    Publication date: January 31, 2019
    Inventors: Chunmiao LIU, Venkata Ramesh BALABHADRUNI, Ping CHEN, Chunbo WANG, Chengqiong XIE