公开(公告)号：US11956636B2

公开(公告)日：2024-04-09

申请号：US18080184

申请日：2022-12-13

Applicant: NEC Corporation

Inventor： Hironori Ito ,  Anand Raghawa Prasad ,  Andreas Kunz ,  Sivabalan Arumugam ,  Sivakamy Lakshminarayanan ,  Sheeba Backia Mary Baskaran

IPC: H04W12/106 ,  H04W12/037 ,  H04W12/041 ,  H04W12/08 ,  H04W36/14 ,  H04W48/18

CPC classification number: H04W12/106 ,  H04W12/037 ,  H04W12/041 ,  H04W12/08 ,  H04W36/14 ,  H04W48/18

Abstract: A communication terminal (10) according to the present disclosure includes: a control unit (12) configured to, in a case of a movement from a communication area formed by the 5GS to a communication area formed by the EPS or a movement from a communication area formed by the EPS to a communication area formed by the 5GS, determine whether or not a communication system forming a communication area at a movement destination can satisfy requirements of services; and a communication unit (11) configured to, when it is determined that the communication system forming the communication area at the movement destination can satisfy the requirements of the services, send a connection request message to the communication system forming the communication area at the movement destination.

公开(公告)号：US11924921B2

公开(公告)日：2024-03-05

申请号：US17205848

申请日：2021-03-18

Applicant: NEC CORPORATION

Inventor： Genadi Velev ,  Toshiyuki Tamura ,  Andreas Kunz

IPC: H04W56/00 ,  H04L5/00 ,  H04W8/08 ,  H04W48/18 ,  H04W76/00 ,  H04W76/11 ,  H04W76/12 ,  H04W76/27 ,  H04W76/38 ,  H04W80/10

CPC classification number: H04W80/10 ,  H04L5/0098 ,  H04W8/08 ,  H04W48/18 ,  H04W76/00 ,  H04W76/11 ,  H04W76/12 ,  H04W76/27 ,  H04W76/38

Abstract: This disclosure provides a User Equipment (UE), including: a transmitter configured to transmit at least one Protocol Data Unit (PDU) session identifier (ID), each of which indicates a PDU session that the UE needs to use in a Non Access Stratum (NAS) Service Request message to a Mobility Management Function (MMF) via an access network (AN) node when the UE has user data to send.

公开(公告)号：US11903083B2

公开(公告)日：2024-02-13

申请号：US17836203

申请日：2022-06-09

Applicant: NEC Corporation

Inventor： Genadi Velev ,  Andreas Kunz ,  Toshiyuki Tamura

IPC: H04W76/38 ,  H04W76/12 ,  H04L12/14 ,  H04M15/00 ,  H04W80/10 ,  H04L67/143

CPC classification number: H04W76/38 ,  H04L12/1407 ,  H04M15/66 ,  H04W76/12 ,  H04W80/10 ,  H04L67/143

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.

公开(公告)号：US11696113B2

公开(公告)日：2023-07-04

申请号：US17030742

申请日：2020-09-24

Applicant: NEC Corporation

Inventor： Iskren Ianev ,  Genadi Velev ,  Toshiyuki Tamura ,  Andreas Kunz

IPC: H04W8/06 ,  H04W48/18 ,  H04W76/30 ,  H04W76/14 ,  H04W76/27 ,  H04W28/02 ,  H04W60/00 ,  H04W4/70

CPC classification number: H04W8/065 ,  H04W28/0215 ,  H04W48/18 ,  H04W60/00 ,  H04W76/14 ,  H04W76/27 ,  H04W76/30 ,  H04W4/70

Abstract: The invention provides for a method of selecting a Dedicated Core Network (DCN) based on assisting indication by mobile terminals, and including the step of configuring the RAN Nodes of the mobile network with the DCN Types of the serving EPC Nodes so that the RAN Nodes can map the DCN selection assisting information from the connecting mobile terminals with the right dedicated EPC Node. This allows for the RAN Node to connect the mobile terminals with EPC Node of the mobile terminal's dedication at initial attach and then keep the mobile terminals on the same DCN. Thus, a re-routing of mobile terminals NAS message from one EPC Node to another EPC node is avoided. The invention also allows for a flexible and dynamic change of the EPC Nodes dedication based on operator's configuration and policy. Additionally, the invention allows for DCN access restriction control by broadcasting of the supported DCN Types by the RAN Node.

公开(公告)号：US11564121B2

公开(公告)日：2023-01-24

申请号：US16088899

申请日：2017-03-23

Applicant: NEC Corporation

Inventor： Iskren Ianev ,  Genadi Velev ,  Andreas Kunz ,  Toshiyuki Tamura

IPC: H04W28/02 ,  H04W48/06 ,  H04W24/08 ,  H04W28/06 ,  H04W4/70 ,  H04W76/18 ,  H04W88/14

Abstract: A core network node supporting Control Plane CIoT (Celluar Internet of Things) EPS (Evolved Packet System) Optimization includes a transmitter configured to transmit to a radio access network node an information indicating overload from data transfer via the Control Plane CIoT EPS Optimization. A radio access network node includes a receiver configured to receive, from a core network node, an information indicating overload from data transfer via Control Plane CIoT (Celluar Internet of Things) EPS (Evolved Packet System) Optimization.

公开(公告)号：US11540125B2

公开(公告)日：2022-12-27

申请号：US16494524

申请日：2018-03-16

Applicant: NEC CORPORATION

Inventor： Sheeba Backia Mary Baskaran ,  Anand Raghawa Prasad ,  Sivabalan Arumugam ,  Sivakamy Lakshminarayanan ,  Hironori Ito ,  Andreas Kunz

IPC: H04W12/0431 ,  G06F7/58 ,  H04L9/32 ,  H04L12/04 ,  H04L12/06 ,  H04W12/041 ,  H04W12/062

Abstract: Provided is an authentication device capable of generating a master key suited to a UE in a 5GS. The authentication device (10) includes a communication unit (11) configured to, in registration processing of user equipment (UE), acquire UE key derivation function (KDF) capabilities indicating a pseudo random function supported by the UE, a selection unit (12) configured to select a pseudo random function used for generation of a master key related to the UE by use of the UE KDF capabilities, and a key generation unit (13) configured to generate a master key related to the UE by use of the selected pseudo random function.

公开(公告)号：US20210212160A1

公开(公告)日：2021-07-08

申请号：US17205848

申请日：2021-03-18

Applicant: NEC CORPORATION

Inventor： Genadi VELEV ,  Toshiyuki Tamura ,  Andreas Kunz

IPC: H04W80/10 ,  H04W76/00 ,  H04W76/12 ,  H04W76/38 ,  H04W76/11 ,  H04W76/27 ,  H04L5/00 ,  H04W8/08 ,  H04W48/18

Abstract: This disclosure provides a User Equipment (UE), including: a transmitter configured to transmit at least one Protocol Data Unit (PDU) session identifier (ID), each of which indicates a PDU session that the UE needs to use in a Non Access Stratum (NAS) Service Request message to a Mobility Management Function (MMF) via an access network (AN) node when the UE has user data to send.

公开(公告)号：US10531419B2

公开(公告)日：2020-01-07

申请号：US15755815

申请日：2016-11-09

Applicant: NEC CORPORATION

Inventor： Andreas Kunz ,  Genadi Velev ,  Filipe Leitao ,  Anand Raghawa Prasad ,  Naoaki Suzuki

IPC: H04W60/04 ,  H04W8/12 ,  H04L29/06 ,  H04W8/08 ,  H04W8/20 ,  H04W12/06 ,  H04W60/00

Abstract: This invention provides a network node for IP Multimedia Subsystem (IMS) Centralized Services (ICS), comprising: a memory storing instructions; and at least one processor configured to process the instructions to: receive an Update Location Request with an IMSI (International Mobility Subscriber Identity) and an MSRN (Mobile Station Routing Number) from a MSC (Mobile Switching Centre) Server, retrieve a subscription profile and service settings from a HSS (Home Subscriber Server), map the subscription profile with service settings into a CS (Circuit-Switched) profile with CS settings, and send an Insert Subscriber Data message including the mapped CS profile and CS settings, to the MSC Server.

公开(公告)号：US10306475B2

公开(公告)日：2019-05-28

申请号：US15808527

申请日：2017-11-09

Applicant: NEC Corporation

Inventor： Xiaowei Zhang ,  Anand Raghawa Prasad ,  Andreas Kunz ,  Genadi Velev ,  Toshiyuki Tamura

IPC: H04W4/00 ,  H04W12/12 ,  H04W12/04 ,  H04W12/10 ,  H04W8/12 ,  H04W4/70 ,  H04W76/14 ,  H04L29/06

Abstract: In order for making MTC more efficient and/or secure, a base station forming a communication system connects a UE to a core network. A node serves as an entering point to the core network for a service provider, and transmits traffic between the service provider and the UE. The node establishes, as a connection to the base station, a first connection for directly transceiving messages between the node and the base station. Alternatively, the node establishes a second connection for transparently transceiving the messages through a different node that is placed within the core network and has established a different secure connection to the base station.

公开(公告)号：US10299134B2

公开(公告)日：2019-05-21

申请号：US15808515

申请日：2017-11-09

Applicant: NEC Corporation

Inventor： Xiaowei Zhang ,  Anand Raghawa Prasad ,  Andreas Kunz ,  Genadi Velev ,  Toshiyuki Tamura

IPC: H04W4/00 ,  H04W12/12 ,  H04W4/70 ,  H04W8/12 ,  H04W12/10 ,  H04W76/14 ,  H04W12/04 ,  H04L29/06

Abstract: In order for making MTC more efficient and/or secure, a base station forming a communication system connects a UE to a core network. A node serves as an entering point to the core network for a service provider, and transmits traffic between the service provider and the UE. The node establishes, as a connection to the base station, a first connection for directly transceiving messages between the node and the base station. Alternatively, the node establishes a second connection for transparently transceiving the messages through a different node that is placed within the core network and has established a different secure connection to the base station.