Patents by Inventor Yawei Liu

Yawei 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).

  • SYNCHRONIZATION METHOD AND SYNCHRONIZATION APPARATUS OF COMMUNICATION SYSTEM
    Publication number: 20100309929
    Abstract: The present invention discloses a method and an apparatus for synchronization in a communication system, the method includes: detecting whether a user equipment is in an uplink out-of-synchronization state; triggering, by a downlink scheduling entity, an uplink enhanced random access synchronization process, if the user equipment is in the uplink out-of-synchronization state; and obtaining, by an uplink scheduling entity, a user equipment identifier sent by the user equipment on which the uplink enhanced random access synchronization process is triggered, and informing the downlink scheduling entity via an interaction with the downlink scheduling entity that uplink synchronization of the user equipment is restored.
    Type: Application
    Filed: November 4, 2008
    Publication date: December 9, 2010
    Inventors: Zhuo Gao, Yawei Liu