Patents by Inventor Syed Ali Jafar

Syed Ali Jafar 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).

  • Wireless communication system with interference compensation
    Patent number: 7006795
    Abstract: A method and apparatus for assigning the data rate and/or power level to the mobile terminals without determining the highest theoretical system throughput, and without determining the highest weighted system throughput. An order is imposed on the terminals and the data rate and/or power covariance matrices are assigned such that the data rates of the terminals having a lower index in the order will not be decreased due to the presence of the terminals having a higher index in the order, and this is accomplished without changing the power covariance matrixes of the antennas involved in the communication with the lower index terminals. Thus, the assignment is made to the terminals based on the terminals requirements without regard to the interference introduced by the terminals with a higher index in the order since this interference will be compensated for by the compensation technique when the compensation technique process the terminals in accordance with the order.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: February 28, 2006
    Assignee: Lucent Technologies Inc.
    Inventors: Gerard J Foschini, Syed Ali Jafar
  • Wireless communication system with interference compensation
    Patent number: 6937843
    Abstract: A method and apparatus to compensate for interference between signals within a wireless communication system using dirty paper coding to compensate for interference on the downlink and multi-user detection to compensate for interference on uplink.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: August 30, 2005
    Assignee: Lucent Technologies Inc.
    Inventors: Gerard J Foschini, Syed Ali Jafar
  • Wireless communication system with interference compensation
    Publication number: 20030104784
    Abstract: A method and apparatus for assigning the data rate and/or power level to the mobile terminals without determining the highest theoretical system throughput, and without determining the highest weighted system throughput. An order is imposed on the terminals and the data rate and/or power covariance matrices are assigned such that the data rates of the terminals having a lower index in the order will not be decreased due to the presence of the terminals having a higher index in the order, and this is accomplished without changing the power covariance matrixes of the antennas involved in the communication with the lower index terminals. Thus, the assignment is made to the terminals based on the terminals requirements without regard to the interference introduced by the terminals with a higher index in the order since this interference will be compensated for by the compensation technique when the compensation technique process the terminals in accordance with the order.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 5, 2003
    Inventors: Gerard J. Foschini, Syed Ali Jafar
  • Wireless communication system with interference compensation
    Publication number: 20030104808
    Abstract: A method and apparatus to compensate for interference between signals within a wireless communication system using dirty paper coding to compensate for interference on the downlink and multi-user detection to compensate for interference on uplink.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 5, 2003
    Inventors: Gerard J. Foschini, Syed Ali Jafar