公开(公告)号：US20230093775A9

公开(公告)日：2023-03-23

申请号：US17154790

申请日：2021-01-21

Applicant: NEC Corporation

Inventor： Genadi VELEV ,  Iskren IANEV ,  Toshiyuki TAMURA

IPC: H04W76/12 ,  H04W24/08 ,  H04L67/12 ,  H04W88/16 ,  H04W4/70 ,  H04W88/02

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.

公开(公告)号：US20200305022A1

公开(公告)日：2020-09-24

申请号：US16088881

申请日：2017-03-23

Applicant: NEC Corporation

Inventor： Iskren IANEV ,  Genadi VELEV ,  Andreas KUNZ ,  Toshiyuki TAMURA

IPC: H04W28/02 ,  H04W4/70 ,  H04W28/06

Abstract: A core network node includes a transmitter configured to transmit a control plane data back-off timer to restrict a request from a UE for data transmission via Control Plane CIoT EPS Optimization. A UE includes a receiver configured to receive a control plane data back-off timer from a core network node, and a controller configured to not initiate data transmission via Control Plane CIoT EPS Optimization while the control plane data back-off timer is running.

公开(公告)号：US20190166647A1

公开(公告)日：2019-05-30

申请号：US16321304

申请日：2017-08-18

Applicant: NEC CORPORATION

Inventor： Genadi VELEV ,  Toshiyuki TAMURA ,  Andreas KUNZ

IPC: H04W80/10 ,  H04W8/08 ,  H04L5/00 ,  H04W76/38 ,  H04W76/27 ,  H04W76/12 ,  H04W76/11 ,  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：US20180070240A1

公开(公告)日：2018-03-08

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: H04W12/12 ,  H04W76/02 ,  H04W12/10 ,  H04W12/04 ,  H04W8/12 ,  H04W4/00 ,  H04L29/06

CPC classification number: H04W12/12 ,  H04L63/1466 ,  H04W4/70 ,  H04W8/12 ,  H04W12/04 ,  H04W12/10 ,  H04W76/14

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：US20230164881A1

公开(公告)日：2023-05-25

申请号：US18094461

申请日：2023-01-09

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

CPC classification number: H04W80/10 ,  H04W76/00 ,  H04W76/12 ,  H04W76/38 ,  H04W76/11 ,  H04W76/27 ,  H04L5/0098 ,  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：US20220304109A1

公开(公告)日：2022-09-22

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

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：US20220104181A1

公开(公告)日：2022-03-31

申请号：US17549190

申请日：2021-12-13

Applicant: NEC Corporation

Inventor： Genadi VELEV ,  Iskren Ianev ,  Toshiyuki Tamura

IPC: H04W72/04 ,  H04W48/18

Abstract: The invention describes a method for detecting an inability to serve a UE in the selected serving node due to mismatch between the UE's DCN-related indication and the UE's DCN-related subscription and/or the UE's capabilities and/or due to serving node congestion. The method allows to update the UE's DCN configuration information, so that the UE can be assigned to an appropriate DCN during the next RRC/NAS request procedure.

公开(公告)号：US20190123954A1

公开(公告)日：2019-04-25

申请号：US16169907

申请日：2018-10-24

Applicant: NEC Corporation

Inventor： Andreas KUNZ ,  Gottfried PUNZ ,  Genadi VELEV ,  Toshiyuki TAMURA

IPC: H04L12/24 ,  H04L29/14 ,  H04L29/06 ,  H04W76/19

Abstract: A method of facilitating P-CSCF restoration when a P-CSCF failure has occurred is disclosed. The method comprises a Proxy Call Session Control Function, ‘P-CSCF’ receiving a Session Initiation Protocol, ‘SIP’, message when said P-CSCF has been selected as a alternative P-CSCF to a failed P-CSCF and providing to an associated Policy and Charging Rules Function, ‘PCRF’, a message comprising to indication that P-CSCF restoration is required.

公开(公告)号：US20160380802A1

公开(公告)日：2016-12-29

申请号：US15023803

申请日：2014-09-24

Applicant: NEC CORPORATION

Inventor： Andreas KUNZ ,  Gottfried PUNZ ,  Genadi VELEV ,  Toshiyuki TAMURA

IPC: H04L12/24 ,  H04L29/14 ,  H04W76/02 ,  H04L29/06

CPC classification number: H04L41/06 ,  H04L65/1006 ,  H04L65/1016 ,  H04L65/105 ,  H04L65/1073 ,  H04L69/40 ,  H04W76/12 ,  H04W76/19 ,  H04W76/32

Abstract: A method of facilitating P-CSCF restoration when a P-CSCF failure has occurred is disclosed. The method comprises a Proxy Call Session Control Function, ‘P-CSCF’ receiving a Session Initiation Protocol, ‘SEP’, message when said P-CSCF has been selected as an alternative P-CSCF to a failed P-CSCF and providing, to an associated Policy and Charging Rules Function, ‘PCRF’, a message comprising an indication that P-CSCF restoration is required.

Abstract translation: 公开了当发生P-CSCF故障时促进P-CSCF恢复的方法。 该方法包括代理呼叫会话控制功能，当P-CSCF已被选择为故障P-CSCF的替代P-CSCF时，接收会话发起协议的“P-CSCF”为“SEP”，并且向 相关联的策略和计费规则功能“PCRF”，包括需要P-CSCF恢复的指示的消息。

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.