Patents by Inventor Nghia T. Vuong

Nghia T. Vuong 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).

  • Mechanism for maximizing uplink bandwidth by overlapping control regions in WiMAX systems
    Patent number: 7965683
    Abstract: A method and system for allocating a particular uplink control region to both HARQ ACKCH and CQICH in order to maximize uplink bandwidth for data transfer in a communication network. A control region scheduling (CRS) utility assigns a higher priority to HARQ ACKCH relative to CQICH. When both HARQ ACKCH and CQICH are to be allocated for a subscriber in the same region in the same frame, HARQ ACKCH is allocated in the region while CQICH is rejected. As the substitute to the rejected CQICH, the CRS utility may use current uplink channel quality information in combination with the corresponding HARQ ACK transmission to estimate the downlink channel quality information for the subscriber. Upon receiving the HARQ ACK information, the CRS utility updates the subscriber(s) uplink channel quality information. The CRS utility also provides a configurable option of activating or de-activating the sharing of the uplink control region.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: June 21, 2011
    Assignee: Motorola Mobility, Inc.
    Inventors: Chen Mu, Prachi P. Kumar, Nghia T. Vuong, Jun Wang
  • MECHANISM FOR MAXIMIZING UPLINK BANDWIDTH BY OVERLAPPING CONTROL REGIONS IN WIMAX SYSTEMS
    Publication number: 20090310542
    Abstract: A method and system for allocating a particular uplink control region to both HARQ ACKCH and CQICH in order to maximize uplink bandwidth for data transfer in a communication network. A control region scheduling (CRS) utility assigns a higher priority to HARQ ACKCH relative to CQICH. When both HARQ ACKCH and CQICH are to be allocated for a subscriber in the same region in the same frame, HARQ ACKCH is allocated in the region while CQICH is rejected. As the substitute to the rejected CQICH, the CRS utility may use current uplink channel quality information in combination with the corresponding HARQ ACK transmission to estimate the downlink channel quality information for the subscriber. Upon receiving the HARQ ACK information, the CRS utility updates the subscriber(s) uplink channel quality information. The CRS utility also provides a configurable option of activating or de-activating the sharing of the uplink control region.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 17, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Chen Mu, Prachi P. Kumar, Nghia T. Vuong, Jun Wang