Patents by Inventor Hiroaki Amada

Hiroaki Amada 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).

  • Mobile communication method, mobile communication system, session control device and originating terminal
    Patent number: 7643471
    Abstract: A mobile communication method for performing communications between an originating terminal and a terminating terminal through a radio access network and a core network, includes: sending a bearer setup request, in the originating terminal, to a first session control device controlling a location area of the originating terminal, the bearer setup request requesting to set a bearer for the communications between the originating terminal and the terminating terminal; and performing a process of sending a communication start request for the terminating terminal in response to the bearer setup request in parallel with a process of commanding a bearer setup device to set the bearer, in the first session control device.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: January 5, 2010
    Assignee: NTT DoCoMo, Inc.
    Inventors: Akimichi Tanabe, Hiroaki Amada, Motoshi Tamura, Masahiro Sawada
  • Mobile communication method, mobile communication system, session control device and originating terminal
    Publication number: 20060072609
    Abstract: A mobile communication method for performing communications between an originating terminal and a terminating terminal through a radio access network and a core network, includes: sending a bearer setup request, in the originating terminal, to a first session control device controlling a location area of the originating terminal, the bearer setup request requesting to set a bearer for the communications between the originating terminal and the terminating terminal; and performing a process of sending a communication start request for the terminating terminal in response to the bearer setup request in parallel with a process of commanding a bearer setup device to set the bearer, in the first session control device.
    Type: Application
    Filed: October 4, 2005
    Publication date: April 6, 2006
    Applicant: NTT DoCoMo, Inc.
    Inventors: Akimichi Tanabe, Hiroaki Amada, Motoshi Tamura, Masahiro Sawada
  • Handover control equipment, radio resource management equipment, network resource management equipment, mobile communication system, and handover control method
    Publication number: 20050272428
    Abstract: A handover control equipment includes a handover destination determining unit configured to determine a handover destination radio access system based on communication quality of a communicating communication type used in a radio access system to which a mobile terminal connects, radio resource use statuses of handover destination candidate radio access systems, and communication qualities of communication types provided by handover destination candidate radio access systems, and a handover controller configured to control handover to the handover destination radio access system.
    Type: Application
    Filed: June 2, 2005
    Publication date: December 8, 2005
    Applicant: NTT DoCoMo, Inc.
    Inventors: Akimichi Tanabe, Hiroaki Amada, Jun Kakishima, Motoshi Tamura