Patents by Inventor Yusuke Furuumi

Yusuke Furuumi 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).

  • RADIO COMMUNICATION APPARATUS AND RADIO TRANSMISSION METHOD
    Publication number: 20230208484
    Abstract: A radio communication apparatus includes a plurality of antennas, a radio transmission unit configured to execute radio transmission processing on data to be transmitted from the plurality of antennas, and a processor connected to the radio transmission unit. The processor executes a process including acquiring beam group specification information that specifies a beam group that is capable of being formed when the data to be transmitted is transmitted, forming at least one beam included in the beam group, and correcting an envelope of a beam group using correction factors, the beam group including the at least one beam formed, the correction factors corresponding to the beam group specification information.
    Type: Application
    Filed: October 3, 2022
    Publication date: June 29, 2023
    Applicant: Fujitsu Limited
    Inventors: Katsuhiko Tsujihata, Kazuyuki Ozaki, Shunsuke FUJIO, KUNIFUMI TAMACHI, Kazunori Sato, Tadahiro Sato, Hiroshi Okagawa, Yoji Ohashi, Yusuke FURUUMI, Shinichiro Kobayashi
  • Wireless communication apparatus and method
    Patent number: 8179863
    Abstract: A wireless communication apparatus comprises a determination unit to determine whether to increase the number of reference signals to be included in a downlink signal based on an uplink signal. The wireless communication apparatus further comprises a mapping unit to map reference signals based on a determination made by the determination unit.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: May 15, 2012
    Assignee: Fujitsu Limited
    Inventors: Masahiro Yokoyama, Hitoshi Mizusawa, Yusuke Furuumi
  • WIRELESS COMMUNICATION APPARATUS AND METHOD
    Publication number: 20090303946
    Abstract: A wireless communication apparatus comprises a determination unit to determine whether to increase the number of reference signals to be included in a downlink signal based on an uplink signal. The wireless communication apparatus further comprises a mapping unit to map reference signals based on a determination made by the determination unit.
    Type: Application
    Filed: March 24, 2009
    Publication date: December 10, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Masahiro Yokoyama, Hitoshi Mizusawa, Yusuke Furuumi
  • Communications device, mobile terminal
    Publication number: 20060019608
    Abstract: An HSDPA-compatible mobile terminal comprises a first measurement unit that measures the CPICH reception quality, a second measurement unit that measures the HS-PDSCH reception quality, a control unit that exerts control, depending on the reception environment, to either generate the CQI information using, primarily, the measurement results in the first measurement unit, or to generate the CQI in the first measurement unit, or to generate the CQI information using, primarily, the measurement results in the second measurement unit, and a transmission unit for transmitting said CQI information to a ground base station.
    Type: Application
    Filed: March 14, 2005
    Publication date: January 26, 2006
    Inventors: Yusuke Furuumi, Masaaki Suzuki, Takurou Nishikawa