Patents by Inventor Quanzhu Duan

Quanzhu Duan 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).

  • Methods and systems for ARQ feedback message improvement
    Patent number: 8560908
    Abstract: Certain embodiments of the present disclosure propose techniques for improving automatic repeat request (ARQ) feedback messages to reduce unnecessary transmissions by notifying the transmitter of the last acknowledged block in the ARQ feedback message.
    Type: Grant
    Filed: October 31, 2009
    Date of Patent: October 15, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Quanzhu Duan, Chun Woo Lee, Jong Ro Park
  • Methods and systems using window start update for wireless communication HARQ connection
    Patent number: 8443247
    Abstract: Embodiments of the present disclosure allow a HARQ transmitter to provide a receiver an indication of the protocol data units (PDUs) that should not be expected because they are part of a data burst that has been retransmitted a maximum allowable number of times. The indication message may contain a maximum serial number contained in the data burst that has reached the maximum number of retransmissions, or the serial number of a first PDU in the next data burst.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: May 14, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Quanzhu Duan, Chun Woo Lee, Jong Ro Park
  • Methods and systems for handling ARQ resets
    Patent number: 8352823
    Abstract: Systems and methods for handling automatic repeat request (ARQ) resets are described. A first device may receive a message initiating an ARQ reset procedure transmitted by a second device. The first device may determine if both the first and second devices have initiated an ARQ reset procedure. The first device may take action to limit a loss of blocks of data exchanged between the first and second devices, if both the first and second devices have initiated an ARQ reset procedure.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: January 8, 2013
    Assignee: QUALCOMM Incorporated
    Inventor: Quanzhu Duan
  • METHODS AND SYSTEMS FOR ARQ RESET
    Publication number: 20100281324
    Abstract: Embodiments of the present propose methods and systems for managing previously initiated ARQ resets when it is determined that both the RX and TX initiated independent ARQ reset procedures.
    Type: Application
    Filed: April 27, 2010
    Publication date: November 4, 2010
    Applicant: QUALCOMM INCORPORATED
    Inventor: Quanzhu Duan
  • METHODS AND SYSTEMS USING WINDOW START UPDATE FOR WIRELESS COMMUNICATION HARQ CONNECTION
    Publication number: 20100153809
    Abstract: Embodiments of the present disclosure allow a HARQ transmitter to provide a receiver an indication of the protocol data units (PDUs) that should not be expected because they are part of a data burst that has been retransmitted a maximum allowable number of times. The indication message may contain a maximum serial number contained in the data burst that has reached the maximum number of retransmissions, or the serial number of a first PDU in the next data burst.
    Type: Application
    Filed: October 13, 2009
    Publication date: June 17, 2010
    Applicant: QUALCOMM INCORPORATED
    Inventors: Quanzhu Duan, Chun Woo Lee, Jong Ro Park
  • METHODS AND SYSTEMS FOR ARQ FEEDBACK MESSAGE IMPROVEMENT
    Publication number: 20100146359
    Abstract: Certain embodiments of the present disclosure propose techniques for improving automatic repeat request (ARQ) feedback messages to reduce unnecessary transmissions by notifying the transmitter of the last acknowledged block in the ARQ feedback message.
    Type: Application
    Filed: October 31, 2009
    Publication date: June 10, 2010
    Applicant: QUALCOMM INCORPORATED
    Inventors: Quanzhu Duan, Chun Woo Lee, Jong Ro Park
  • METHODS AND SYSTEMS USING FAST DL / UL SYNCHRONIZATION FOR MOBILE SYSTEMS
    Publication number: 20100118797
    Abstract: Certain embodiments provide techniques and apparatus that may allow for improvements in performance and power consumption in sleep and idle mode through fast DL and UL synchronization for wireless communications systems, such as Mobile WiMAX Systems.
    Type: Application
    Filed: April 17, 2009
    Publication date: May 13, 2010
    Applicant: QUALCOMM INCORPORATED
    Inventors: Jong Ro Park, Chun Woo Lee, Wan Ho Kim, Doo Seok Kim, Kyuong Cheol Oh, Quanzhu Duan