Patents by Inventor Joseph C. CHEUNG

Joseph C. CHEUNG 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).

  • Method, base station and mobile station for TDD operation in a communication system
    Patent number: 8929900
    Abstract: A method, NodeB and User Equipment for TDD operation in a communication system operating in TDD mode in a frequency band allocated for FDD operation. Preferably, operation is in TDD uplink and downlink mode in a first frequency band designated or normally used for FDD uplink communication, and in TDD downlink-only mode in a second frequency band designated or normally used for FDD downlink communication. The invention provides the following advantages: Provides a flexible method to deploy a time division duplex architecture in frequency division duplex spectrum. Allows flexible use of system capacity by adjusting the uplink and downlink capacity split. Removes previous FDD duplex restrictions.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: January 6, 2015
    Assignee: Sony Corporation
    Inventors: William J. Jones, Joseph C. Cheung, Alan E. Jones
  • METHOD, BASE STATION AND MOBILE STATION FOR TDD OPERATION IN A COMMUNICATION SYSTEM
    Publication number: 20110090826
    Abstract: A method, NodeB and User Equipment for TDD operation in a communication system operating in TDD mode in a frequency band allocated for FDD operation. Preferably, operation is in TDD uplink and downlink mode in a first frequency band designated or normally used for FDD uplink communication, and in TDD downlink-only mode in a second frequency band designated or normally used for FDD downlink communication. The invention provides the following advantages: Provides a flexible method to deploy a time division duplex architecture in frequency division duplex spectrum. Allows flexible use of system capacity by adjusting the uplink and downlink capacity split. Removes previous FDD duplex restrictions.
    Type: Application
    Filed: December 28, 2010
    Publication date: April 21, 2011
    Applicant: Sony Corporation
    Inventors: William J. JONES, Joseph C. CHEUNG, Alan E. JONES