Search Patents
  • CLOSED LOOP FEEDBACK IN MIMO SYSTEMS
    Publication number: 20090147881
    Abstract: Feedback bandwidth may be reduced in a closed loop MIMO system by factoring non essential information out of a beamforming matrix.
    Type: Application
    Filed: February 13, 2009
    Publication date: June 11, 2009
    Inventors: Xintian E. Lin, Qinghua Li, Ada S. Y. Poon
  • Deterministic spatial power allocation and bit loading for closed loop MIMO
    Patent number: 7577209
    Abstract: Spatial power allocation and bit loading are performed deterministically for a closed loop MIMO system.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: August 18, 2009
    Assignee: Intel Corporation
    Inventor: Ada S. Y. Poon
  • Closed loop feedback in MIMO systems
    Patent number: 8165241
    Abstract: Feedback bandwidth may be reduced in a closed loop MIMO system by factoring non essential information out of a beamforming matrix.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: April 24, 2012
    Assignee: Intel Corporation
    Inventors: Xintian E. Lin, Qinghua Li, Ada Shuk Yan Poon
  • Closed loop feedback in MIMO systems
    Patent number: 7492829
    Abstract: Feedback bandwidth may be reduced in a closed loop MIMO system by factoring non essential information out of a beamforming matrix.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: February 17, 2009
    Assignee: Intel Corporation
    Inventors: Xintian E. Lin, Qinghua Li, Ada S. Y. Poon
  • Spatial puncturing apparatus, method, and system
    Patent number: 8160028
    Abstract: Stations in a N×N multiple-input-multiple-output (MIMO) wireless network always puncture the weakest spatial channel. N?1 spatial channels are always used regardless of the channel state.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: April 17, 2012
    Assignee: Intel Corporation
    Inventor: Ada S. Y. Poon
  • Spatial puncturing apparatus, method, and system
    Patent number: 7710925
    Abstract: Stations in an N×N multiple-input-multiple-output (MIMO) wireless network always puncture the weakest spatial channel. A receiving station determines channel state information for N spatial channels and feeds back to the transmitting station channel state information for only N?1 spatial channels. The channel state information may include a beamforming matrix to cause the transmitting station to utilize N?1 spatial channels.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: May 4, 2010
    Assignee: Intel Corporation
    Inventor: Ada S. Y. Poon