Patents by Inventor Toshiyuki Tamura

Toshiyuki Tamura 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: 11457336
    Abstract: This disclosure is related to a procedure of selecting an access stratum to send MT SMS when the UE (100) is registered to the core network via more than one access network.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: September 27, 2022
    Assignee: NEC CORPORATION
    Inventors: Kundan Tiwari, Toshiyuki Tamura
  • Publication number: 20220304109
    Abstract: The method proposes to establish at least one session between the User Equipment and the Session Management Function node, and initiate session deactivation for a session indicated by the User Plane Function node, upon detection inactivity of User Plane connection for the session for a period by the User Plane Function node.
    Type: Application
    Filed: June 9, 2022
    Publication date: September 22, 2022
    Applicant: NEC Corporation
    Inventors: Genadi VELEV, Andreas KUNZ, Toshiyuki TAMURA
  • Publication number: 20220303934
    Abstract: The present disclosure proposes combined registration for mobile terminals with multiple SIM subscription from the same PLMN. A mobile terminal with two or more SIM subscriptions from the same PLMN registers for all SIM subscriptions to the same AMF or for each SIM subscription, to different AMFs, or to different RATs via a single combined registration procedure. A combined deregistration procedure is also disclosed in which the UE can deregister for all SIM subscriptions in a single combined deregistration procedure.
    Type: Application
    Filed: April 24, 2020
    Publication date: September 22, 2022
    Applicant: NEC Corporation
    Inventors: Iskren IANEV, Toshiyuki TAMURA
  • Publication number: 20220303827
    Abstract: An object is to provide a control device which can control, in consideration of a traffic characteristic of an application operating between an application server and a communication terminal, traffic or a data amount transferred on a core network. A control device (10) according to the present example embodiment includes: a communication unit (12) configured to receive, via a service control device (20) which authenticates an application server (30) providing a service for a communication terminal (50), information relating to a transmittable data amount determined in the application server (30); and a control unit (11) configured to execute, by using the information relating to the transmittable data amount, traffic control on data transmitted from the communication terminal (50).
    Type: Application
    Filed: June 9, 2022
    Publication date: September 22, 2022
    Applicant: NEC Corporation
    Inventors: Hajime ZEMBUTSU, Toshiyuki Tamura, Naoaki Suzuki
  • Publication number: 20220295363
    Abstract: A Policy Control Function (PCF) apparatus (34) receives information from a Network Exposure Function (NEF) apparatus (35) or an Application Function (AF) apparatus (41) and modifies based on the information a policy including an Index to RAT/Frequency Selection Priority (RFSP index). This can, for example, contribute to enabling a radio communication network to provide a User Equipment (UE) with a user plane path containing a radio connection in a specific cell based on a request from an AF.
    Type: Application
    Filed: April 26, 2021
    Publication date: September 15, 2022
    Applicant: NEC Corporation
    Inventors: Toshiyuki TAMURA, Junya OKABE, Kazuhiro CHIBA, Kouji SHIMIZU, Tomoki NAKAGAWA, Takahiro AOKI
  • Patent number: 11445406
    Abstract: A communication system capable of dynamically changing an MME to serve in call processing in accordance with the load condition of the MMEs and the like is provided. A communication system of the present invention includes: communication control apparatuses (10) to (12); and a node apparatus (20) that executes call processing relating to a communication terminal with the communication control apparatuses (10) to (12). The communication control apparatuses (10) to (12) form a context sharing group that shares subscriber data of the communication terminal. The node apparatus (20) selects a first communication control apparatus in the context sharing group, and transmits a call processing message to the first communication control apparatus. The first communication control apparatus executes the call processing using the subscriber data shared in the context sharing group.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: September 13, 2022
    Assignee: NEC CORPORATION
    Inventors: Daisuke Mizukami, Shinji Onishi, Kazuhiro Egashira, Shingo Shiga, Toshiyuki Tamura
  • Patent number: 11440695
    Abstract: A method for manufacturing a metal bottle having a mouthpiece in an upper part of a bottomed cylindrical bottle body, including forming a screw part on the mouthpiece and then forming a curl at a tip of the mouthpiece. During formation of the screw part, a height of the first-stage screw thread from a tip side in a complete screw part and a height of the second-stage screw thread from the tip side are substantially equal and a distance between an apex part of the first-stage screw thread and a bottle axis is smaller than a distance between the apex part of the second-stage screw thread and the bottle axis. After formation of the curl, a distance between the apex part of the first-stage screw thread and the bottle axis and a distance between the apex part of the second-stage screw thread and the bottle axis are substantially equal.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: September 13, 2022
    Assignee: TOYO SEIKAN CO., LTD.
    Inventors: Takeshi Aihara, Masaomi Tamura, Toshiyuki Hasegawa, Takeshi Murase, Tomohiko Nakamura, Naoya Matsumoto, Nobuhiro Sasajima
  • Patent number: 11445345
    Abstract: An object is to provide a network apparatus capable of performing a communication procedure suitable for accommodating an IoT device. A network apparatus (10) according to present disclosure includes a communication unit (11) configured to receive profile information of a communication terminal (20) transmitted from the communication terminal (20), and a determination unit (12) configured to determine, in a procedure for establishing a radio link between the network apparatus (10) and the communication terminal (20), whether or not to skip at least one of a procedure for configuring a radio resource used for communication of user data between the network apparatus (10) and the communication terminal (20) and a procedure for setting security between the network apparatus (10) and the communication terminal (20) according to the profile information, in which the communication unit (11) receives small data transmitted from the communication terminal (20) through the radio link.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: September 13, 2022
    Assignee: NEC CORPORATION
    Inventor: Toshiyuki Tamura
  • Patent number: 11445355
    Abstract: A core network node for mobility management includes a means for transmitting information related to expected mobility of user equipment, UE, to an access network node.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: September 13, 2022
    Assignee: NEC CORPORATION
    Inventors: Iskren Ianev, Sivasubramaniam Ramanan, Toshiyuki Tamura, Hassan Al-Kanani
  • Publication number: 20220286936
    Abstract: In order to further facilitate continuous communication with a flying mobile terminal, a first radio station according to an example aspect of the present disclosure includes a control section configured to, in a handover of a mobile terminal configured to move according to flight path information, control the handover according to the flight path information from a second radio station to the first radio station; and a communication processing section configured to transmit a message including information related to acceptance of the handover to the second radio station without receiving a request message for the handover transmitted from the second radio station.
    Type: Application
    Filed: August 20, 2020
    Publication date: September 8, 2022
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Toshiyuki TAMURA
  • Publication number: 20220286951
    Abstract: A RAN node apparatus (1) sends to, an AMF (3) in a core network, slice support information indicating a network slice supported by another RAN node (2) that can be used as a secondary node in dual connectivity in which the RAN node apparatus (1) acts as a master node. This can contribute, for example, to allowing the AMF to determine a network slice allowed to a UE, while taking into account a network slice supported by a secondary node of dual connectivity.
    Type: Application
    Filed: January 15, 2021
    Publication date: September 8, 2022
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Toshiyuki TAMURA
  • Publication number: 20220279075
    Abstract: A new charging solution is proposed for D2D direct communication based on 5GS, which allows the network to charge UE's usage accurately and flexibly.
    Type: Application
    Filed: September 28, 2020
    Publication date: September 1, 2022
    Applicant: NEC Corporation
    Inventors: Linghang FAN, Iskren IANEV, Toshiyuki TAMURA
  • Publication number: 20220279414
    Abstract: In order to further facilitate continuous communication with a flying mobile terminal, a control apparatus according to an example aspect of the present disclosure includes a communication processing section configured to transmit a first request message requesting allocation of a radio resource for a mobile terminal configured to move according to flight path information to a core network connected to a radio station configured to allocate the radio resource.
    Type: Application
    Filed: August 20, 2020
    Publication date: September 1, 2022
    Applicant: NEC Corporation
    Inventors: Toshiyuki TAMURA, Hisashi FUTAKI
  • Publication number: 20220279436
    Abstract: A RAN node apparatus (1) transmits, to a User Equipment (UE) (3), in a cell served by the RAN node apparatus (10), information indicating a network slice supported by another RAN node (2) that can be used as a secondary node in dual connectivity in which the RAN node apparatus acts as a master node. This can contribute, for example, to allowing the UE to know a network slice supported by a potential secondary node of dual connectivity through a potential master node of the dual connectivity.
    Type: Application
    Filed: January 15, 2021
    Publication date: September 1, 2022
    Applicant: NEC Corporation
    Inventors: Hisashi FUTAKI, Toshiyuki TAMURA
  • Publication number: 20220279430
    Abstract: It is intended to solve or at least reduce such a problem that a UE cannot know that a network is abnormal. A wireless terminal in an aspect of the present disclosure includes: a communication unit (11) configured to receive a registration permission message including at least one piece of information indicating that the procedure of first network slice-specific authentication and authorization is pending; and a control unit (12) configured to activate, upon the reception of the registration permission message, a timer for determining that the procedure of network slice-specific authentication and authorization is abnormal.
    Type: Application
    Filed: August 3, 2020
    Publication date: September 1, 2022
    Applicant: NEC Corporation
    Inventors: Toshiyuki TAMURA, Tsuyoshi TAKAKURA
  • Publication number: 20220272610
    Abstract: A UE (1) receives system information from at least one radio access network (RAN) node (2A to 2C) before the UE (1) performs roaming outside a range of a HPLMN of the UE (1). The system information includes information indicating at least one VPLMN. The system information further includes an indication, for each of the at least one VPLMN, of whether a particular communication service that is associated with at least one network slice instance (NSI) of a network slice of the HPLMN can be provided in at least one NSI of a network slice of the VPLMN. This can, for example, facilitate the UE to select for roaming a VPLMN in which a particular communication service provided in at least one NSI of a network slice of the HPLMN is available in an NSI of the VPLMN.
    Type: Application
    Filed: April 27, 2021
    Publication date: August 25, 2022
    Applicant: NEC Corporation
    Inventors: Tsuyoshi TAKAKURA, Toshiyuki TAMURA
  • Publication number: 20220272531
    Abstract: The present disclosure proposes a solution for monitoring, controlling and enforcement of the number of the UEs per Network Slice quota for Network Slices subject to Network Slice Specific Authentication and Authorisation (NSSAA). It proposes a new Network Slice Quota (NSQ) service and service operations for Network Slice quota subscription, monitoring, update and notification.
    Type: Application
    Filed: December 15, 2020
    Publication date: August 25, 2022
    Applicant: NEC Corporation
    Inventors: Iskren IANEV, Toshiyuki TAMURA
  • Publication number: 20220272621
    Abstract: A network node (21) associated with a first Home Public Land Mobile Network (HPLMN) prepares a list indicating at least one Visited PLMN (VPLMN) that is capable of providing an equivalent network slice to a first network slice of the first PLMN (20). In order to cause a User Equipment (UE) (1) whose HPLMN is the first PLMN (20) to prioritize the at least one VPLMN in PLMN selection, the network node (21) sends the list to a User Equipment (UE) (1) via a second PLMN (30). This can, for example, contribute to facilitating the UE to select a VPLMN that is capable of providing a network slice that is equivalent to a particular network slice of its HPLMN.
    Type: Application
    Filed: May 18, 2021
    Publication date: August 25, 2022
    Applicant: NEC Corporation
    Inventors: Tsuyoshi TAKAKURA, Toshiyuki TAMURA
  • Publication number: 20220272776
    Abstract: A radio terminal (1) is configured to assign a Protocol Data Unit (PDU) Session ID that is different from a most recently used PDU Session ID to a new PDU session to be established. This contributes to, for example, avoiding a conflict (or collision) between an uncompleted PDU session release and a new PDU session establishment that are associated with the same PDU Session ID.
    Type: Application
    Filed: October 21, 2020
    Publication date: August 25, 2022
    Applicant: NEC Corporation
    Inventors: Toshiyuki TAMURA, Junya OKABE
  • Patent number: 11425596
    Abstract: An object is to provide a control device which can control, in consideration of a traffic characteristic of an application operating between an application server and a communication terminal, traffic or a data amount transferred on a core network. A control device (10) according to the present example embodiment includes: a communication unit (12) configured to receive, via a service control device (20) which authenticates an application server (30) providing a service for a communication terminal (50), information relating to a transmittable data amount determined in the application server (30); and a control unit (11) configured to execute, by using the information relating to the transmittable data amount, traffic control on data transmitted from the communication terminal (50).
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: August 23, 2022
    Assignee: NEC CORPORATION
    Inventors: Hajime Zembutsu, Toshiyuki Tamura, Naoaki Suzuki