公开(公告)号：US10575220B2

公开(公告)日：2020-02-25

申请号：US15927582

申请日：2018-03-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soohwan Lee ,  Dongmyoung Kim ,  Myung Ki Shin

IPC: H04W36/00 ,  H04W36/12 ,  H04L29/12 ,  H04L29/08 ,  H04W80/04 ,  H04W8/28

Abstract: Disclosed is a session management method based on protocol data unit (PDU) session anchor (PSA) relocation, and an device performing the session management method. The session management method may include determining to perform PSA relocation, establishing a new additional PSA device through the PSA relocation, and releasing an existing additional PSA device, in which the PSA relocation may allow traffic moving towards the existing additional PSA device to move to the new additional PSA device.

公开(公告)号：US11895539B2

公开(公告)日：2024-02-06

申请号：US17536609

申请日：2021-11-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soohwan Lee ,  Dongmyoung Kim ,  Myung Ki Shin

IPC: H04W36/00 ,  H04W36/12 ,  H04L67/14 ,  H04W80/04 ,  H04W8/28 ,  H04L61/5007 ,  H04L101/677

CPC classification number: H04W36/0022 ,  H04L67/14 ,  H04W36/0011 ,  H04W36/12 ,  H04L61/5007 ,  H04L2101/677 ,  H04W8/28 ,  H04W80/04

Abstract: Disclosed is a session management method based on protocol data unit (PDU) session anchor (PSA) relocation, and an device performing the session management method. The session management method may include determining to perform PSA relocation, establishing a new PSA device through the PSA relocation, and releasing an existing PSA device, in which the PSA relocation may allow traffic moving towards the existing PSA device to move to the new PSA device.

公开(公告)号：US11190988B2

公开(公告)日：2021-11-30

申请号：US16796487

申请日：2020-02-20

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soohwan Lee ,  Dongmyoung Kim ,  Myung Ki Shin

IPC: H04W36/00 ,  H04W36/12 ,  H04L29/12 ,  H04L29/08 ,  H04W80/04 ,  H04W8/28

Abstract: Disclosed is a session management method based on protocol data unit (PDU) session anchor (PSA) relocation, and an device performing the session management method. The session management method may include determining to perform PSA relocation, establishing a new additional PSA device through the PSA relocation, and releasing an existing additional PSA device, in which the PSA relocation may allow traffic moving towards the existing additional PSA device to move to the new additional PSA device.

公开(公告)号：US10779254B2

公开(公告)日：2020-09-15

申请号：US15998693

申请日：2018-08-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soohwan Lee ,  Dongmyoung Kim ,  Myung Ki Shin

IPC: H04W60/04 ,  H04L29/08 ,  H04L12/911 ,  H04W28/10 ,  H04W28/02

Abstract: Provided is a service request method performed by an SMF device, including receiving, by an AMF device, an N2 message including a service request message from an access network, and receiving an Nsmf_PDUSession_UpdateSMContext request message including a PDU session ID and location information and an access type of a UE from the AMF device; verifying selection criteria of a UPF device based on the received location information of the UE and determining whether to use a new UPF device or an old UPF device; and sending an Nsmf_PDUSession_UpdateSMContext response message including information on a PDU session ID with the new UPF device or the old PUF device based on the determining. The access network is configured to receive, from the AMF device, an N2 request message including an MM NAS service accept and the access network is configured to perform a service through an RRC connection reconfiguration with the UE.

公开(公告)号：US20190007500A1

公开(公告)日：2019-01-03

申请号：US16026291

申请日：2018-07-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dongmyoung Kim ,  Myung Ki Shin ,  Soohwan Lee ,  Seung- Ik Lee

IPC: H04L29/08

Abstract: Provided is a method of relocating a session and service continuity (SSC) mode 2 protocol data unit (PDU) session anchor by a session management function (SMF) device, the method including determining a relocation of a PDU session anchor; releasing a PDU session associated with an old PDU session anchor by sending, to a user equipment (UE), N1 SM information including a PDU session release command message through an access and mobility management function (AMF) device; and selecting a new PDU session anchor to establish a PDU session associated with the new PDU session anchor.

公开(公告)号：US10542513B2

公开(公告)日：2020-01-21

申请号：US16195210

申请日：2018-11-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Yoo Hwa Kang ,  Dongmyoung Kim ,  No Ik Park

IPC: H04W4/00 ,  H04W60/06 ,  H04W60/00

Abstract: A deregistration method of user equipment in a network and user equipment performing the same is disclosed. The user equipment determines whether the user equipment is in a connection management (CM)_CONNECTED state in a non-3GPP access network and initiates a deregistration procedure through the non-3GPP access network if the user equipment is in the CM_CONNECTED state in the non-3GPP access network.

公开(公告)号：US20190059067A1

公开(公告)日：2019-02-21

申请号：US15998693

申请日：2018-08-16

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soohwan Lee ,  Dongmyoung Kim ,  Myung Ki Shin

IPC: H04W60/04 ,  H04L29/08 ,  H04L12/911 ,  H04W28/10 ,  H04W28/02

Abstract: Provided is a service request method performed by an SMF device, including receiving, by an AMF device, an N2 message including a service request message from an access network, and receiving an Nsmf_PDUSession_UpdateSMContext request message including a PDU session ID and location information and an access type of a UE from the AMF device; verifying selection criteria of a UPF device based on the received location information of the UE and determining whether to use a new UPF device or an old UPF device; and sending an Nsmf_PDUSession_UpdateSMContext response message including information on a PDU session ID with the new UPF device or the old PUF device based on the determining. The access network is configured to receive, from the AMF device, an N2 request message including an MM NAS service accept and the access network is configured to perform a service through an RRC connection reconfiguration with the UE.

公开(公告)号：US20180279180A1

公开(公告)日：2018-09-27

申请号：US15927582

申请日：2018-03-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Soohwan Lee ,  Dongmyoung Kim ,  Myung Ki Shin

IPC: H04W36/00 ,  H04W36/12 ,  H04W8/28 ,  H04L29/12

CPC classification number: H04W36/0022 ,  H04L61/2007 ,  H04L61/6077 ,  H04L67/14 ,  H04W8/28 ,  H04W36/0011 ,  H04W36/12 ,  H04W80/04

Abstract: Disclosed is a session management method based on protocol data unit (PDU) session anchor (PSA) relocation, and an device performing the session management method. The session management method may include determining to perform PSA relocation, establishing a new additional PSA device through the PSA relocation, and releasing an existing additional PSA device, in which the PSA relocation may allow traffic moving towards the existing additional PSA device to move to the new additional PSA device.

公开(公告)号：US20180255139A1

公开(公告)日：2018-09-06

申请号：US15696859

申请日：2017-09-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dongmyoung Kim ,  Jung Soo Park ,  Younghwan Choi ,  Yun Chul Choi

IPC: H04L29/08 ,  H04W64/00 ,  H04W68/02

CPC classification number: H04L67/12 ,  H04L67/303 ,  H04W64/00 ,  H04W68/005 ,  H04W68/02 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/20 ,  Y02D70/26

Abstract: Disclosed is a core network device and terminal device communicating using an Internet of things (IoT) module and a data communication module, the terminal device including an IoT module, a data communication module, and a controller configured to transmit a preference and a support function of the terminal device to the core network device and perform an optimization function through an interoperation between the IoT module and the data communication module in response to an optimization request from the core network device, the optimization request being based on the support function and the preference.