公开(公告)号：US11963022B2

公开(公告)日：2024-04-16

申请号：US18075506

申请日：2022-12-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Yoo Hwa Kang ,  Namseok Ko ,  Changki Kim ,  Jeong-Dong Ryoo ,  Yeoncheol Ryoo ,  Taesik Cheung

IPC: G06F15/16 ,  H04L41/0823 ,  H04W24/02

CPC classification number: H04W24/02 ,  H04L41/0823

Abstract: A method and apparatus for processing DetNet traffic through the steps of receiving configuration information for configuring a DetNet node from a DetNet controller of a DetNet system and configuring a UPF, a DS-TT, and/or a NW-TT in a mobile communication system as the DetNet node are provided.

公开(公告)号：US11051358B2

公开(公告)日：2021-06-29

申请号：US16569339

申请日：2019-09-12

Applicant: Electronics and Telecommunications Research Institute

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

IPC: H04W76/30 ,  H04W36/00 ,  H04W28/08 ,  H04W76/32 ,  H04W68/00 ,  H04W88/02 ,  H04W68/02 ,  H04W76/34

Abstract: A method for releasing a context of a user equipment in a non-3GPP access network and a network entity performing the same are disclosed. In a case in which the UE is a unreachable state, a non-3GPP interworking function (N3IWF) may a UE context release request message to an access and mobility management function (AMF), and may perform protocol data unit (PDU) session user plane de-activation between the AMF, a session management function (SMF), and a user plane function (UPF). In addition, the AMF may transmit a UE context release command message to the N3IWF, and the N3IWF may transmit a UE context release complete message to the AMF.

公开(公告)号：US10893574B2

公开(公告)日：2021-01-12

申请号：US16380748

申请日：2019-04-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Changki Kim ,  Jeoung Lak Ha ,  Yoo Hwa Kang

IPC: H04W76/34

Abstract: A packet data unit (PDU) session release method and a network entity performing the same are disclosed.
An access and mobility management function (AMF) may receive a PDU session release request message including an access type which is an access network to be released in a multi-access PDU (MA PDU) session from user equipment (UE) when the MA PDU session is established. The AMF transmits a first message including the access type to a session management function (SMF).

公开(公告)号：US12289695B2

公开(公告)日：2025-04-29

申请号：US17499125

申请日：2021-10-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Changki Kim ,  Yoo Hwa Kang

IPC: H04J3/06 ,  H04W56/00

Abstract: Provided is a method for providing a time synchronization service for an external application service of a 5G system (5GS). A method may include: receiving, by a Network Exposure Function (NEF) from an Application Function (AF), a request for a capability for a 5GS time synchronization service; and in response to the request for the capability, transmitting, by the NEF to the AF, a time synchronization parameter including the capability.

公开(公告)号：US11178194B2

公开(公告)日：2021-11-16

申请号：US16277302

申请日：2019-02-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Changki Kim ,  Yoo Hwa Kang ,  Jeoung Lak Ha

IPC: H04W76/12 ,  H04L29/06 ,  H04W80/02 ,  H04W76/15

Abstract: A packet data unit session establishment method and network entity performing the same is disclosed. User equipment (UE) may establish registration with the core network through a first access network when the UE is registered in a core network through a second access network belonging to the network and a first PDU session is established through the second access network. The UE may transmit a non-access stratum (NAS) message including a PDU session identifier (ID) that is the same as an ID of the first PDU session to an access and mobility management function (AMF).

公开(公告)号：US10419994B2

公开(公告)日：2019-09-17

申请号：US15480539

申请日：2017-04-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Yoo Hwa Kang ,  No Ik Park

IPC: H04L12/46 ,  H04L12/66 ,  H04L29/06 ,  H04L29/12 ,  H04W12/02 ,  H04W12/04 ,  H04W36/14 ,  H04W48/00 ,  H04W76/12 ,  H04W84/12 ,  H04W12/00

Abstract: A non-access stratum based access method and a terminal supporting the same. The terminal receives an Internet protocol (IP) address allocated from a first gateway included in a non-3rd generation partnership project (3GPP) access network. In addition, the terminal applies a non-access stratum (NAS) protocol to a first device managing mobility of the terminal through the IP address.

公开(公告)号：US11962723B2

公开(公告)日：2024-04-16

申请号：US17582277

申请日：2022-01-24

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Do Young Kim ,  Namseok Ko ,  Sun Me Kim ,  Taesik Cheung ,  Yoo Hwa Kang ,  Tae Kyu Kang ,  Jeong-Dong Ryoo ,  Yeoncheol Ryoo

IPC: H04M1/64 ,  H04M7/00 ,  H04M7/06

CPC classification number: H04M7/0081 ,  H04M7/066

Abstract: A method in which a high-quality packet telephony terminal apparatus performing low-latency and lossless packet communication with a counterpart packet telephony terminal apparatus operates in an integrated network structure in which a time sensitive network (TSN) and a packet communication network are combined may be disclosed. The packet telephony terminal apparatus may perform packet telephony call processing, perform a TSN stream reservation procedure when the counterpart packet telephony terminal apparatus is capable of performing a TSN function for lossless packet communication, adjust a size of a dejitter buffer when the TSN stream reservation procedure is successful, and perform low-latency packet telephony communication through the minimized size of the dejitter buffer.

公开(公告)号：US11729660B2

公开(公告)日：2023-08-15

申请号：US17398165

申请日：2021-08-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Changki Kim ,  Yoo Hwa Kang ,  Taesik Cheung

IPC: H04W28/02

CPC classification number: H04W28/0263 ,  H04W28/0205 ,  H04W28/0268

Abstract: A 5G system operating as a Time Sensitive Network (TSN) bridge and a traffic transmission method are provided. The traffic transmission method includes receiving, by a User Plane Function (UPF), a traffic transmission type information from a Session Management Function (SMF); determining, by the UPF, whether a Time Sensitive Communication (TSC) traffic incoming the TSN bridge is a UE-UE TSC traffic based on the traffic transmission type information; and when it is determined that the TSC traffic incoming the TSN bridge is the UE-UE TSC traffic, performing, by the UPF, local switching between Protocol Data Unit (PDU) sessions for transmitting UE-UE TSC traffic.

公开(公告)号：US11419072B2

公开(公告)日：2022-08-16

申请号：US16800060

申请日：2020-02-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jeoung Lak Ha ,  Yoo Hwa Kang

IPC: H04L43/106 ,  H04W56/00 ,  H04L69/22 ,  H04J3/06

Abstract: A method for processing a packet in a mobile communication network and a network element for performing the same. A first network element may receive a first data packet to be transmitted to a second network element via a third network element and add a header to the first data packet. The first network element may add time information associated with the first data packet to the header and transmit the first data packet with the header to the third network element.

公开(公告)号：US11064388B2

公开(公告)日：2021-07-13

申请号：US16407450

申请日：2019-05-09

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Changki Kim ,  Yoo Hwa Kang ,  Jeoung Lak Ha

IPC: H04L12/26 ,  H04W28/08 ,  H04M15/00 ,  H04W8/08 ,  H04W80/10

Abstract: A traffic distribution method through a multi-access network in a network and a network entity performing the same. A first device belonging to the network may trigger a change to an ATSSS (access traffic steering, switching, and splitting) rule corresponding to an established multi-access PDU session (MA PDU session) when the MA PDU session is established. A session management function (SMF) may transmit a first message including the changed ATSSS rule to an access and mobility management function (AMF).