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).

  • Publication number: 20240244033
    Abstract: A first server (5) receives from a requesting entity (2) a request for generating an Edge Enabler Client (EEC) Context. If the first server (5) determines access to an edge data network (EDN) (4) is permissible by verifying security credentials included in the request, it attempts to identify a second server (6) located in the EDN (4) based on a selection criterion. The selection criterion includes a requirement indicated in an AC Profile included in the request. If the access to the EDN (4) is not permissible or the requirement indicated in the AC Profile is not fulfilled, the first server (5) sends to the requesting entity (2) a second response message containing a failure cause, which is information indicating that the second server (6) cannot be identified. This can contribute, for example, to providing a suitable selection criterion for identifying an edge server.
    Type: Application
    Filed: February 16, 2022
    Publication date: July 18, 2024
    Applicant: NEC Corporation
    Inventors: Tsuyoshi TAKAKURA, Toshiyuki TAMURA
  • Publication number: 20240244112
    Abstract: Session Management Function (SMF) (32) detects an event related to an Application Context Relocation (ACR) procedure after receiving a first event notification from an Access and Mobility management Function (AMF) (31) indicating that a User Equipment (UE) (1) is out of an Edge Data Network (EDN) service area or out of a Local Area Data Network (LADN) service area. In response to detecting the event related to the ACR procedure, the SMF (32) initiates a procedure for releasing a PDU Session for the LADN or EDN, or a procedure for deactivating a UP connection for the PDU Session. For example, this can help prevent a failed ACR procedure when a UE moves between EDNs (or LADNs).
    Type: Application
    Filed: March 31, 2022
    Publication date: July 18, 2024
    Applicant: NEC Corporation
    Inventors: Tsuyoshi Takakura, Toshiyuki Tamura
  • Publication number: 20240236661
    Abstract: This disclosure defines a procedure to security protection to sensitive information in AS layer during AS connection establishment procedure. More specifically the disclosure provides a procedure for privacy protection of user subscription and location related information at AS layer during AS connection establishment procedure.
    Type: Application
    Filed: December 27, 2023
    Publication date: July 11, 2024
    Applicant: NEC Corporation
    Inventors: Kundan TIWARI, Toshiyuki TAMURA
  • Publication number: 20240236910
    Abstract: [Problem] This disclosure defines a Registration procedure with AMF re-allocation procedure when the UE is in CM-CONNECTED state. [Solution] A method of a first Access and Mobility Management Function (AMF) apparatus includes receiving, from a Radio Access Network (RAN), a Registration Request message of a User Equipment (UE) in CM-CONNECTED state. And the method includes sending the Registration Request message to a second AMF apparatus directly.
    Type: Application
    Filed: June 15, 2022
    Publication date: July 11, 2024
    Applicant: NEC Corporation
    Inventors: Kundan Tiwari, Toshiyuki Tamura, lskren lanev
  • Patent number: 12028912
    Abstract: The invention describes a method for dynamic switching between a control plane data transmission and user plane data transmission avoiding the Detach and consecutive re-attach procedure or TAU procedure. In particular the decision for switch between the different transmission schemes is based on various criteria like the size of the data packet or on total amount of data, etc.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: July 2, 2024
    Assignee: NEC CORPORATION
    Inventors: Genadi Velev, Iskren Ianev, Toshiyuki Tamura
  • Patent number: 12022429
    Abstract: A communication system is disclosed in which am anchor base station receives, from a core network node, downlink data for a communication device. The base station attempts (e.g. by RAN-based paging) to initiate communication with the communication device, and when the communication device does not respond to the attempt to initiate communication, the base station sends a message to the core network node, the message requesting initiation of a paging procedure for the communication device (e.g. S1-based paging).
    Type: Grant
    Filed: April 20, 2023
    Date of Patent: June 25, 2024
    Assignee: NEC CORPORATION
    Inventors: Sivapathalingham Sivavakeesar, Robert Paterson, Toshiyuki Tamura, Sadafuku Hayashi
  • Publication number: 20240187968
    Abstract: A method according to the present disclosure is a method for a Unified Data Management Function (UDM) including: keeping information for a Permanent Equipment Identifier (PEI) regarding a User Equipment (UE); and sending, to an Access Management Function (AMF), first information regarding the UE based on the information for the PEI.
    Type: Application
    Filed: February 1, 2022
    Publication date: June 6, 2024
    Applicant: NEC Corporation
    Inventors: Kundan TIWARI, Toshiyuki TAMURA
  • Patent number: 12004254
    Abstract: The current disclosure proposes per UE customization of the UE DRX/eDRX and PSM based on the analytical results from NWDAF. It also proposes a new UE policy element for UE analytics reporting—UE Analytics Reporting Policy that is a set of reporting rules and is defined by the PCF based on analytical results from NWDAF. The UEARP then is delivered or updated in the UE during registration.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: June 4, 2024
    Assignee: NEC CORPORATION
    Inventors: Iskren Ianev, Toshiyuki Tamura, Linghang Fan
  • Publication number: 20240179775
    Abstract: In order to provide a communication system capable of charging control in accordance with a bearer used by a UE even when the UE performs dual connectivity, a communication system according to the present disclosure includes a communication terminal (11) configured to communicate with a communication device (12) and a communication device (13) by using a different radio bearer for each of the communication device (12) and the communication device (13), and a control device (14) configured to determine whether to cause the communication device (12) to measure the traffic of each radio bearer.
    Type: Application
    Filed: January 26, 2024
    Publication date: May 30, 2024
    Applicant: NEC Corporation
    Inventor: Toshiyuki TAMURA
  • Patent number: 11997586
    Abstract: The present disclosure proposes solutions for monitoring, controlling and enforcement the number of the UEs per Network Slice quota in roaming. It proposes new Network Slice Quota (NSQ) service and service operations for Network Slice quota subscription, monitoring, update and notification in both, the home network and in the visiting network.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: May 28, 2024
    Assignee: NEC CORPORATION
    Inventors: Iskren Ianev, Toshiyuki Tamura
  • Publication number: 20240172202
    Abstract: A communication terminal capable of determining whether or not it can perform DC, a base station, and a communication method are provided. A communication terminal (30) according to the present disclosure includes a communication unit (31) that simultaneously communicates with a master base station (10) associated with a first radio access technology and a secondary base station (20) associated with a second radio access technology, and a control unit (32) that specifies, when it is notified by the master base station (10) that it can provide dual connectivity using the second radio access technology, at least one frequency band supported by the secondary base station (20), the secondary base station being configured to provide the dual connectivity in cooperation with the master base station (10).
    Type: Application
    Filed: February 1, 2024
    Publication date: May 23, 2024
    Applicant: NEC Corporation
    Inventors: Toshiyuki TAMURA, Naoaki SUZUKI, Hisashi FUTAKI
  • Patent number: 11991553
    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: June 9, 2022
    Date of Patent: May 21, 2024
    Assignee: NEC CORPORATION
    Inventors: Hajime Zembutsu, Toshiyuki Tamura, Naoaki Suzuki
  • Patent number: 11985584
    Abstract: A method for a User Equipment (UE) (500) comprises performing registration procedure to 5G System (5GS); receiving at least one of area restriction related information indicating at least one of allowed area and not allowed area, wherein the area restriction related information is at least one of per Single Network Slice Selection Assistance Information (S-NSSAI) basis, per Access Point Name (APN) basis, and per S-NSSAI and APN basis; and determining whether or not to transmit a Protocol Data Unit (PDU) session related signaling based on the area information; wherein the UE (500) transmits the PDU session related signaling when the UE (500) enters Tracking Area (TA) present in the allowed area or when the UE (500) does not enter TA present in the not allowed area.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: May 14, 2024
    Assignee: NEC CORPORATION
    Inventors: Kundan Tiwari, Toshiyuki Tamura, Linghang Fan
  • Publication number: 20240137756
    Abstract: This disclosure defines a procedure to security protection to sensitive information in AS layer during AS connection establishment procedure. More specifically the disclosure provides a procedure for privacy protection of user subscription and location related information at AS layer during AS connection establishment procedure.
    Type: Application
    Filed: December 27, 2023
    Publication date: April 25, 2024
    Applicant: NEC Corporation
    Inventors: Kundan TIWARI, Toshiyuki TAMURA
  • Patent number: 11962566
    Abstract: An example object is to appropriately provide, to a terminal apparatus, both a service via a packet data network gateway and a service for Mobile Edge Computing (MEC) in an Evolved Packet Core (EPC) network. A first communication processing unit 131 transfers data between a terminal apparatus 500 and a packet data network gateway 200 when a destination address of the data for the terminal apparatus 500 is an address other than an address of an MEC server 300, and a second communication processing unit 133 transfers data between the terminal apparatus 500 and the MEC server 300 when a destination address of data for the terminal apparatus 500 is an address of the MEC server 300.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: April 16, 2024
    Assignee: NEC CORPORATION
    Inventors: Eigo Nagai, Toshiyuki Tamura, Atsushi Shiroyama
  • Publication number: 20240121740
    Abstract: In response to receiving from a requesting entity (2) a request for a connection to an entity providing a service in an edge data network (4), a first server (7) attempts to identify a second server (5) located in the edge data network (7) based on at least one selection criterion. If the second server (4) cannot be identified or is not available, the first server (7) identifies a second alternative server that is different from the second server, or identify a first alternative server that substitutes for the first server (7) for attempting to identify the second server. This can contribute, for example, to mitigating the impact of failing to discover one or more preferred edge servers for a User Equipment (UE).
    Type: Application
    Filed: January 6, 2022
    Publication date: April 11, 2024
    Applicant: NEC Corporation
    Inventors: Tsuyoshi Takakura, Toshiyuki Tamura
  • Publication number: 20240113042
    Abstract: A microelectronic device including an isolation device. The isolation device includes a lower isolation element, an upper isolation element, and an inorganic dielectric plateau between the lower isolation element and the upper isolation element. The inorganic dielectric plateau contains an upper etch stop layer and a lower etch stop layer between the upper isolation element and the lower isolation element. The upper etch stop layer provides an end point signal during the plateau etch process which provides feedback on the amount of inorganic dielectric plateau which has been etched. The lower etch stop layer provides a traditional etch stop function to provide for a complete plateau etch and protection of an underlying metal bond pad. The inorganic dielectric plateau also contains alternating layers of high stress and low stress silicon dioxide, which provide a means of reinforcement of the inorganic dielectric plateau.
    Type: Application
    Filed: September 30, 2022
    Publication date: April 4, 2024
    Inventors: Jeffrey Alan West, Thomas Dyer Bonifield, Toshiyuki Tamura, Yoshihiro Takei
  • Publication number: 20240107424
    Abstract: In response to receiving from a requesting entity (2) a request for a connection to an entity providing a service in an edge data network (4), a first server (7) attempts to identify a second server (5) located in the edge data network (7) based on at least one selection criterion. The at least one selection criterion includes a congestion state of a server located within the edge data network (4). If the second server (5) is identified, the first server (7) sends information about the second server (5) to the requesting entity (2). If the second server (5) cannot be identified, the first server (7) sends to the requesting entity (2) a rejection message indicating that the second server (5) cannot be identified. This can contribute, for example, to providing a suitable selection criterion for identifying an edge server.
    Type: Application
    Filed: January 6, 2022
    Publication date: March 28, 2024
    Applicant: NEC Corporation
    Inventors: Tsuyoshi Takakura, Toshiyuki Tamura
  • Publication number: 20240107481
    Abstract: Disclosed are techniques for registering a user equipment (UE) to a new access and mobility management function (AMF). When a new access and mobility management function (AMF) determines that an old AMF is disjoint AMF i.e. they are not connected, then the new AMF fetches the UE context (5GMM and SGSM context) from the old AMF via new generation radio access network (NG-RAN). The new AMF routes a Namf_Communication_UEContextTransfer request message to the old AMF to fetch the UE contexts via NG-RAN. The old AMF sends the UE contexts in the Namf_Communication_UEContextTransfer response message to the new AMF via NG-RAN. Based on the context transfers between the new AMF and the old AMF, the UE is registered to the new AMF.
    Type: Application
    Filed: February 3, 2022
    Publication date: March 28, 2024
    Applicant: NEC Corporation
    Inventors: Kundan Tiwari, Toshiyuki Tamura
  • Publication number: 20240098626
    Abstract: User equipment, UE, includes: a receiver configured to receive a parameter indicating whether the UE is restricted or authorized for transmission of user data in a message transmitted on Uplink Synchronization Channel, UL-SCH, from an access network node; and a hardware processor configured to process instructions to determine whether the transmission of the user data in the message is restricted or authorized based on the parameter.
    Type: Application
    Filed: December 1, 2023
    Publication date: March 21, 2024
    Applicant: NEC Corporation
    Inventors: Iskren IANEV, Toshiyuki TAMURA