Patents by Inventor Kimihisa Akazawa

Kimihisa Akazawa 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).

  • BASE STATION DEVICE, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD
    Publication number: 20230388857
    Abstract: A base station device includes a processor and transmits data to a terminal using an adjacent base station. The processor transmits, to the adjacent base station at a specified cycle, a report request that requests a status report indicating a status of a data transmission from the adjacent base station to the terminal. The processor controls a data transmission to the adjacent base station based on the status report received from the adjacent base station. The processor changes the cycle of transmitting the report request to the adjacent base station based on a change in the status indicated by the status report.
    Type: Application
    Filed: August 15, 2023
    Publication date: November 30, 2023
    Applicant: FUJITSU LIMITED
    Inventor: Kimihisa AKAZAWA
  • Wireless communication apparatus and wireless communication method
    Patent number: 9706459
    Abstract: A base station apparatus acquires, when a handover from a first device in a base station apparatus to a second device in the base station apparatus occurs, handover source information related to data received by the first device after the handover. The base station apparatus calculates a time taken to transfer the data from the first device to the second device based on the acquired handover source information. The base station apparatus transfers the data during the calculated time.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: July 11, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Kimihisa Akazawa, Eiji Matsumoto, Shinya Tokuyasu
  • WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION SYSTEM, AND COMMUNICATION CONTROL METHOD
    Publication number: 20160036715
    Abstract: A wireless communication device including: a memory, and a processor coupled to the memory and configured to: wirelessly receive a packet including a header that is compressed by another wireless communication device, decompress the compressed header based on a set compression mode among a plurality of compression modes, each of the plurality of compression modes having a different amount of feedback information transmitted from the wireless communication device to the another wireless communication device, obtain a quality of a wireless channel from the another wireless communication device to the wireless communication device, and select the set compression mode based on the obtained quality of the wireless channel.
    Type: Application
    Filed: July 13, 2015
    Publication date: February 4, 2016
    Inventors: Kimihisa Akazawa, Syuichi Haraguchi, Kazuhiro Kondo, Kouichi Kawarabata
  • WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD
    Publication number: 20150172978
    Abstract: A base station apparatus acquires, when a handover from a first device in a base station apparatus to a second device in the base station apparatus occurs, handover source information related to data received by the first device after the handover. The base station apparatus calculates a time taken to transfer the data from the first device to the second device based on the acquired handover source information. The base station apparatus transfers the data during the calculated time.
    Type: Application
    Filed: November 19, 2014
    Publication date: June 18, 2015
    Inventors: Kimihisa Akazawa, Eiji Matsumoto, Shinya TOKUYASU