Patents by Inventor SHUICHIRO CHIBA

SHUICHIRO CHIBA 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: 20200336964
    Abstract: A communication measure is provided that causes a PDU session established in a 5GS to return to the PDU session in an original state after the PDU session established in the 5GS is moved (handed over) to an EPS and then moved (handed over) to the 5GS again. In addition, according to the present invention, a communication measure is provided that causes a PDN connection established in the EPS to return to the PDN connection in an original state after the PDN connection established in the EPS is moved (handed over) to the 5GS and then again moved (handed over) to the EP. In addition, according to the present invention, a communication measure is provided that allows smooth mobility of the UE in an idle mode between the 5GS and the EPS. Further, a communication measure is provided that performs a handover between the 5GS and the EPS smoothly.
    Type: Application
    Filed: November 20, 2018
    Publication date: October 22, 2020
    Inventors: YUDAI KAWASAKI, YASUO SUGAWARA, SHUICHIRO CHIBA, MASAFUMI ARAMOTO
  • Publication number: 20200336935
    Abstract: A notification is made of information in one PDU session establishment procedure to a terminal apparatus, the information being associated with information for identifying one NW slice that is a target of congestion control and the information for identifying another NW slice associated, to prevent a PDU session establishment procedure using information for identifying multiple NW slices at a time. As a method for interpreting the information for identifying the other NW slice associated, two implementation schemes are defined that use explicit notifications from a network and rules configured for the terminal apparatus. In a case that NW slice based congestion control is applied, information for identifying the NW slice to which establishment of a PDU session is allowed is notified as an exception.
    Type: Application
    Filed: November 20, 2018
    Publication date: October 22, 2020
    Applicants: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited, FG Innovation Company Limited
    Inventors: TSUYOSHI TAKAKURA, MASAFUMI ARAMOTO, SHUICHIRO CHIBA
  • Publication number: 20200336948
    Abstract: A communication measure is provided that causes a PDU session established in a 5GS to return to an original state of the PDU session in a case that the PDU session is moved (handed over) to an EPS and then moved (handed over) to the 5GS again. In addition, according to the present invention, a communication measure is provided that causes a PDN connection established in the EPS to return to the PDN connection in an original state after the PDN connection established in the EPS is moved (handed over) to the 5GS and then again moved (handed over) to the EP. In addition, according to the present invention, a communication measure is provided that allows smooth mobility of the UE in an idle mode between the 5GS and the EPS. This allows a communication measure that performs a handover between the 5GS and the EPS smoothly to be provided.
    Type: Application
    Filed: November 20, 2018
    Publication date: October 22, 2020
    Inventors: YUDAI KAWASAKI, YASUO SUGAWARA, SHUICHIRO CHIBA, MASAFUMI ARAMOTO
  • Patent number: 10785632
    Abstract: Provided is a communication measure for registering information about a terminal apparatus in various apparatuses, such as a control apparatus and a terminal apparatus, included in a communication system in which a protocol used for registration management or registration information management for a mobile communication service is shared, based on the states of the various apparatuses. Also provided is a communication control measure for updating the information about the terminal apparatus registered in the various apparatuses. Thus, there are provided, in a communication system in which a protocol used for registration management or registration information management for a mobile communication service is shared, a measure for registration management based on the states of various apparatuses included in the communication system, such as a control apparatus and a terminal apparatus, and a realization measure for determining post-registration behavior.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 22, 2020
    Assignees: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: Yudai Kawasaki, Yoko Kuge, Shuichiro Chiba
  • Publication number: 20200170067
    Abstract: A terminal apparatus and an apparatus in a core network implement a service request procedure for re-establishing UP resources that have been released. In the service request procedure, re-establishment of the UP resources for multiple PDU sessions is implemented. With this configuration, a UP resource associated with a specific PDU session is allowed to be released while maintaining the specific PDU session established, and a system and a communication control method that allow the UP resource to be released are provided.
    Type: Application
    Filed: August 6, 2018
    Publication date: May 28, 2020
    Inventors: YUDAI KAWASAKI, MASAFUMI ARAMOTO, SHUICHIRO CHIBA
  • Publication number: 20200128460
    Abstract: In an IMS emergency call connection of a call which a user equipment cannot recognize as an emergency call, a user equipment transmits to an IMS an IMS emergency call connection signal of the call which the user equipment cannot recognize as the emergency call, and in a case that a reject or redirection message indicating an emergency call connection is received from the IMS, the user equipment determines whether to transmit the IMS emergency call connection signal again to a core network to which the user equipment is connected or whether to transmit the IMS emergency call connection signal again to another core network in the same PLMN. Accordingly, a user equipment, a core network apparatus, a control method to be performed by an IMS apparatus, and the like are provided for the user equipment to connect to a network suitable for an emergency call service in the 5th generation (5G) mobile communication system, which is a next-generation mobile communication system.
    Type: Application
    Filed: June 19, 2018
    Publication date: April 23, 2020
    Inventors: TSUYOSHI TAKAKURA, SHUICHIRO CHIBA
  • Publication number: 20200092706
    Abstract: Provided is a communication measure for registering information about a terminal apparatus in various apparatuses, such as a control apparatus and a terminal apparatus, included in a communication system in which a protocol used for registration management or registration information management for a mobile communication service is shared, based on the states of the various apparatuses. Also provided is a communication control measure for updating the information about the terminal apparatus registered in the various apparatuses. Thus, there are provided, in a communication system in which a protocol used for registration management or registration information management for a mobile communication service is shared, a measure for registration management based on the states of various apparatuses included in the communication system, such as a control apparatus and a terminal apparatus, and a realization measure for determining post-registration behavior.
    Type: Application
    Filed: March 14, 2018
    Publication date: March 19, 2020
    Inventors: YUDAI KAWASAKI, YOKO KUGE, SHUICHIRO CHIBA
  • Publication number: 20200053615
    Abstract: Provided are a terminal apparatus capable of connecting to various core networks, a communication controller suitable for a device in a network connectable to the terminal apparatus, a communication controller for changing a core network to which the terminal apparatus is connected, a communication controller for switching a session established by the terminal apparatus to a session with another core network, and the like. This provides the terminal apparatus supporting a switch of connectivity between multiple core networks, and a communication controller suitable for the device in the network connectable with the terminal apparatus.
    Type: Application
    Filed: August 14, 2017
    Publication date: February 13, 2020
    Applicants: SHARP KABUSHIKI KAISHA, FG Innovation Company Limited
    Inventors: SHUICHIRO CHIBA, YUDAI KAWASAKI, MASAFUMI ARAMOTO, YOKO KUGE
  • Publication number: 20190349879
    Abstract: In the present invention, in a case that an AE requests to change a registrar CSE from a first CSE to a second CSE, an AE-ID, a resource ID of an AE management resource, and a CSE-ID of the registrar CSE, or one of these, is included in a re-registration request. This enables reuse of the AE management resource, thus allowing the amount of communication between the AE and the registrar CSE to be reduced.
    Type: Application
    Filed: December 19, 2017
    Publication date: November 14, 2019
    Inventors: SEIJI SATO, YASUHIRO HAMAGUCHI, HIDEO NAMBA, MASAFUMI ARAMOTO, SHUICHIRO CHIBA, YOKO KUGE, YUDAI KAWASAKI