Patents by Inventor Yudai KAWASAKI

Yudai KAWASAKI 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).

  • Patent number: 10841786
    Abstract: Communication control in response to establishment of a multi-access PDN connection or rejection of establishment of a multi-access PDN connection is performed based on a response to a PDN connectivity establishment request from a terminal device. This provides a method of communication control and the like in response to a multi-access PDN connectivity establishment request from the terminal device.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: November 17, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yudai Kawasaki, Yoko Kuge, Masafumi Aramoto
  • Publication number: 20200344648
    Abstract: A communication unit for implementing an operation for CIoT in 5GS and a communication unit for mapping a connection associated with the function for CIoT to an appropriate connection in a handover between the 5GS and EPS are provided. Even in the 5GS supporting a network slice, a communication unit for allowing the operation for CIoT to be used is provided. Furthermore, a communication unit for mapping a PDN connection associated with the operation for CIoT and established in the EPS to an appropriate PDU session in a handover of user equipment from the EPS to the 5GS is provided. Furthermore, a communication unit for mapping a PDU session established in the 5GS to an appropriate PDN connection in the handover of the user equipment from the 5GS to the EPS is provided.
    Type: Application
    Filed: January 10, 2019
    Publication date: October 29, 2020
    Inventors: YUDAI KAWASAKI, MASAFUMI ARAMOTO
  • Publication number: 20200337095
    Abstract: To provide a communication control means for establishing a session suitable for a terminal apparatus connecting to multiple access networks of various kinds and a network apparatus, a user data communication control means suitable for a terminal apparatus that has established sessions via multiple access networks and a network apparatus, and the like. This provides a communication control means suitable for a terminal apparatus and a network apparatus that support connection to multiple access networks of various kinds.
    Type: Application
    Filed: July 3, 2020
    Publication date: October 22, 2020
    Inventors: Yudai Kawasaki, Masafumi Aramoto
  • 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: 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
  • Publication number: 20200329522
    Abstract: Performed are communication control for establishing a multi-access PDN connection or rejecting the establishment, and communication control for configuring a routing rule for the multi-access PDN connection or rejecting the configuration, on the basis of an operator policy and a terminal policy. This provides a communication control method and the like for the multi-access PDN connection.
    Type: Application
    Filed: June 29, 2020
    Publication date: October 15, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yudai KAWASAKI, Yoko KUGE, Masafumi ARAMOTO
  • Publication number: 20200314936
    Abstract: To provide a communication control means for establishing a session suitable for a terminal apparatus connecting to multiple access networks of various kinds and a network apparatus, a user data communication control means suitable for a terminal apparatus that has established sessions via multiple access networks and a network apparatus, and the like. This provides a communication control means suitable for a terminal apparatus and a network apparatus that support connection to multiple access networks of various kinds.
    Type: Application
    Filed: June 8, 2020
    Publication date: October 1, 2020
    Inventors: YUDAI KAWASAKI, MASAFUMI ARAMOTO
  • Publication number: 20200314723
    Abstract: To provide a communication control means for a handover procedure corresponding to a mobility preferable for a terminal or a communication path, and/or a control means for supporting a preferable handover procedure, and/or a communication control means for establishing a session supporting a preferable handover procedure. This provides the communication control means for providing the types of mobility preferable for the terminal and the communication path, and the handover for realizing diversified mobility.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Inventors: YUDAI KAWASAKI, MASAFUMI ARAMOTO, YOKO KUGE
  • 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: 20200288525
    Abstract: Communication control for establishing a multi-access PDN connection is performed based on a response to a PDN connectivity establishment request from a terminal device. Communication control for transmitting and/or receiving user data using one or more default bearers for a multi-access PDN connection is performed. This provides a communication control method and the like along with a multi-access PDN connectivity establishment request from the terminal device.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 10, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yudai KAWASAKI, Masafumi ARAMOTO
  • Publication number: 20200260362
    Abstract: First identification information is information indicating a mobility type supported by a core network, and second identification information is information indicating a mobility type allowed by the core network. A communication control method for a terminal apparatus of the present invention includes a step of receiving an attach accept message from the core network via a base station apparatus, the attach accept message including at least the first identification information and/or the second identification information. Accordingly, there is provided a communication procedure that is suited to the determination of a mobility type of a terminal.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 13, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yudai KAWASAKI, Masafumi ARAMOTO
  • Publication number: 20200252979
    Abstract: First identification information is information indicating a Mobility Type supported by a core network, and second identification information is information indicating a Mobility Type allowed by the core network. A communication control method for a terminal apparatus of the present invention includes a step of receiving an ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message from the core network via a base station apparatus, the ACTIVATE DEFAULT EPS BEARER CONTEXT REQUEST message including at least the first identification information and/or the second identification information. Accordingly, there is provided a communication procedure that is suited to the determination of a Mobility Type of a terminal.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 6, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yudai KAWASAKI, Masafumi ARAMOTO
  • Patent number: 10701754
    Abstract: Performed are communication control for establishing a multi-access PDN connection or rejecting the establishment, and communication control for configuring a routing rule for the multi-access PDN connection or rejecting the configuration, on the basis of an operator policy and a terminal policy. This provides a communication control method and the like for the multi-access PDN connection.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: June 30, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yudai Kawasaki, Yoko Kuge, Masafumi Aramoto
  • Publication number: 20200196382
    Abstract: A terminal apparatus or a device in a core network exchanges capability information for each function in a registration procedure or a PDU session establishment procedure, and in user data communication additional information is added into an uplink packet to implement terminal apparatus-initiated RQoS control, and additional information is added into a downlink packet to implement network device-initiated RQoS control. A dedicated control message and information for an authentication and/or authorization function by a DN are defined to implement the authentication and/or authorization function by the DN. Furthermore, the terminal apparatus and the device in the core network have a timer or a control process for each network slice to implement a management process such as congestion management for each network slice.
    Type: Application
    Filed: June 19, 2018
    Publication date: June 18, 2020
    Inventors: YUDAI KAWASAKI, YASUO SUGAWARA, MASAFUMI ARAMOTO, TSUYOSHI TAKAKURA
  • Publication number: 20200196133
    Abstract: To provide a communication control method in order to implement terminal apparatus-initiated or network-initiated RQoS control, implement an authentication and/or authorization function by a DN, and implement a management process such as congestion management for each network slice. A terminal apparatus or a device in a core network exchanges capability information for each function in a registration procedure or a PDU session establishment procedure, and in user data communication additional information is added into an uplink packet to implement the terminal apparatus-initiated RQoS control, and additional information is added into a downlink packet to implement network device-initiated RQoS control. A dedicated control message and information for the authentication and/or authorization function by the DN are defined to implement the authentication and/or authorization function by the DN.
    Type: Application
    Filed: June 19, 2018
    Publication date: June 18, 2020
    Inventors: YUDAI KAWASAKI, YASUO SUGAWARA, MASAFUMI ARAMOTO, TSUYOSHI TAKAKURA
  • 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
  • Patent number: 10667318
    Abstract: Communication control for establishing a multi-access PDN connection is performed based on a response to a PDN connectivity establishment request from a terminal device. Communication control for transmitting and/or receiving user data using one or more default bearers for a multi-access PDN connection is performed. This provides a communication control method and the like along with a multi-access PDN connectivity establishment request from the terminal device.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: May 26, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yudai Kawasaki, Masafumi Aramoto
  • Publication number: 20200154312
    Abstract: To provide a communication procedure for data transmission and/or reception suitable to a CIoT terminal. In a communication control method of a terminal apparatus according to the present invention, a first data transmission and/or reception method is a method for transmitting and/or receiving user data by use of a Data Radio Bearer (DRB), a second data transmission and/or reception method is a method for transmitting and/or receiving user data a Signalling Radio Bearer (SRB), and the communication control method includes a step of changing the user data transmission and/or reception method from the first data transmission and/or reception method into the second data transmission and/or reception method, and a step of transmitting and/or receiving the user data to/from a core network by the second data transmission and/or reception method.
    Type: Application
    Filed: January 17, 2020
    Publication date: May 14, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yudai KAWASAKI, Masafumi ARAMOTO
  • Publication number: 20200137809
    Abstract: First identification information is a detach type for requesting disconnection from a system optimized for Internet of Things (IoT). A procedure includes a step of transmitting a detach request message that includes at least the first identification information to a core network, and a step of receiving a detach accept message from the core network as a response to the detach request message. Thus, a communication procedure such as an attach procedure suitable for a CIoT terminal is provided.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 30, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yudai KAWASAKI, Masafumi ARAMOTO
  • Publication number: 20200137810
    Abstract: To provide a communication procedure such as an attach procedure suitable for a CIoT terminal. A method includes: a step of receiving an ATTACH ACCEPT message from a core network; a step of transmitting user data by using a radio bearer for transmitting and/or receiving a control message in a case that the ATTACH ACCEPT message does not include first identification information; and a step of establishing a Packet Data Network (PDN) connection and/or a radio bearer for user data transmission and/or reception and transmitting user data by using the Packet Data Network (PDN) connection and/or the radio bearer for user data transmission and/or reception, in a case that the ATTACH ACCEPT message includes the first identification information.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 30, 2020
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yudai KAWASAKI, Masafumi ARAMOTO