Patents by Inventor Rika Kitou

Rika Kitou 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).

  • Publication number: 20130315182
    Abstract: A base station of a mobile communication system includes a scheduler that generates uplink grant information indicating that uplink radio resources are allocated to less than or equal to a first multiplexing number of units of user equipment, a transmitter that transmits a control signal including the uplink grant information to the user equipment, and a receiver that receives an uplink signal which is transmitted by the user equipment. When a second multiplexing number being less than the first multiplexing number or more units of the user equipment exist which transmit periodically generated periodic data, and when the user equipment exists which transmits non-periodic data generated at non-periodic timing, the scheduler generates the uplink grant information indicating that the uplink radio resources are allocated to the second multiplexing number of the units of the user equipment that transmit periodic data and to the user equipment that transmits non-periodic data.
    Type: Application
    Filed: April 4, 2012
    Publication date: November 28, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Rika Kitou, Kohei Kiyoshima, Naoto Ookubo, Hiroyuki Ishii, Yoshiaki Ofuji, Mikio Iwamura, Anil Umesh
  • Publication number: 20130308592
    Abstract: A base station in a mobile communication system includes: a quality information obtaining unit configured to obtain quality information indicating a radio channel state of a user apparatus; an assignment period selection unit configured to select an assignment period corresponding to the quality information of the user apparatus from a predetermined correspondence relationship between each of a plurality of choices of assignment periods for assigning radio resources to periodic data that occurs periodically and a value of quality information indicating a radio channel state; a scheduling unit configured to determine radio resources to be assigned to the user apparatus in the assignment period that is selected; and a radio communication unit configured to communicate, by radio, user data including periodic data of the user apparatus by using the radio resources determined by the scheduling unit.
    Type: Application
    Filed: April 24, 2012
    Publication date: November 21, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Rika Kitou, Kohei Kiyoshima, Naoto Ookubo, Hiroyuki Ishii, Yoshiaki Ofuji, Mikio Iwamura, Anil Umesh