Patents by Inventor Massaya Fukuta

Massaya Fukuta 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 and apparatus for initial acquisition and cell search for an OFDMA system
    Patent number: 8767525
    Abstract: A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal, the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth and including information for providing at least partial cell identification information. The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection and frame boundary detection and cell specific information detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: July 1, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Hidenori Akita, Kevin L. Baum, Brian K. Classon, Massaya Fukuta, Hiroshi Hayashi, Vijay Nangia, Robert T. Love, Kenneth A. Stewart
  • METHOD AND APPARATUS FOR INITIAL ACQUISITION AND CELL SEARCH FOR AN OFDMA SYSTEM
    Publication number: 20130294343
    Abstract: A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal, the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth and including information for providing at least partial cell identification information. The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection and frame boundary detection and cell specific information detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.
    Type: Application
    Filed: July 5, 2013
    Publication date: November 7, 2013
    Inventors: Hidenori Akita, Kevin L. Baum, Brian K. Classon, Massaya Fukuta, Hiroshi Hayashi, Vijay Nangia, Robert T. Love, Kenneth A. Stewart