公开(公告)号：US20200229035A1

公开(公告)日：2020-07-16

申请号：US16742010

申请日：2020-01-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Changki KIM ,  Yoo Hwa KANG ,  Jeoung Lak HA

IPC: H04W28/06 ,  H04W80/10 ,  H04W8/08 ,  H04W76/11 ,  H04W36/00 ,  H04W36/14 ,  H04L12/707 ,  H04L12/851

Abstract: A steering rule provision method for traffic distribution in a network and a network entity performing the same network. A session management function (SMF) may transmit a first message including a multi-access rule (MAR) to a user plane function (UPF), when establishing or modifying a packet data unit (PDU) session for ATSSS (Access Traffic Steering, Switching, and Splitting). The SMF may receive a second message that is a response message to the first message from the UPF.

公开(公告)号：US20200008263A1

公开(公告)日：2020-01-02

申请号：US16569299

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

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：US20190357294A1

公开(公告)日：2019-11-21

申请号：US16418631

申请日：2019-05-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jeoung Lak HA ,  Yoo Hwa KANG ,  Changki KIM

IPC: H04W76/22

Abstract: A traffic distribution method through a multi-access network in a network and a network entity performing the same are disclosed. An access and mobility management function (AMF) may receive a PDU session modification request message including an ATSSS (access traffic steering, switching, and splitting) preference, which is a preference for an ATSSS rule, from an user equipment (UE) when a multi-access PDU session (MA PDU session) is established and the UE desires to change the ATSSS rule corresponding to the established MA PDU session. The AMF may transmit a first message including the ATSSS preference to a session management function (SMF).

公开(公告)号：US20240107366A1

公开(公告)日：2024-03-28

申请号：US18532683

申请日：2023-12-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jeoung Lak HA ,  Yoo Hwa KANG ,  Changki KIM

IPC: H04W28/02 ,  H04W28/24

CPC classification number: H04W28/0268 ,  H04W28/24

Abstract: Provided is a method of creating a QoS flow for a time synchronization protocol in a wireless communication network. A method of creating a QoS flow for a time synchronization protocol in a wireless communication network includes: receiving, by a Session Management Function (SMF), the PTP profile information from the UE, together with at least one of a DNN, a S-NSSAI information and a session ID for a Time Sensitive Communication (TSC) service; setting, by the SMF, a PCCrule of the QoS flow for the time synchronization protocol; providing, by the SMF, the QoS flow and a SDF filter information for the QoS flow to a User Plane Function (UPF); and providing, by the SMF, the QoS flow and a QoS rule filter to an Access and Mobility Management Function (AMF).

公开(公告)号：US20230247101A1

公开(公告)日：2023-08-03

申请号：US18159761

申请日：2023-01-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jeoung Lak HA ,  Yoo Hwa KANG ,  Changki KIM ,  Taesik CHEUNG

IPC: H04L67/51

CPC classification number: H04L67/51 ,  H04W80/10

Abstract: The present disclosure relates generally to a wireless communication system. More particularly, the present disclosure relates to an apparatus and a method for applying a service-based interface for user traffic processing in a wireless communication system. An operation method of a user plane function (UPF) in a wireless communication system includes: transmitting information on the UPF to a network repository function (NRF) to register a service of the UPF in the NRF, wherein the information on the UPF includes a universally unique identifier (UUID), and information on the service provided by the UPF; and receiving the information on the registered service of the UPF from the NRF.

公开(公告)号：US20230171582A1

公开(公告)日：2023-06-01

申请号：US18070545

申请日：2022-11-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Changki KIM ,  Yoo Hwa KANG ,  Namseok KO ,  No Ik PARK

IPC: H04W8/02 ,  H04W72/04 ,  H04W28/02 ,  H04W76/10

CPC classification number: H04W8/02 ,  H04W72/0413 ,  H04W28/0268 ,  H04W76/10 ,  H04W72/042

Abstract: A method and a network function of an access network for supporting an initial access of UE through the steps of: receiving a request for a first service operation for initial context setup from an AMF of a core network through an interface of service-based architecture between the AMF and the network function; and establishing a bearer related to a user plane function in the access network based on information included in the first service operation are provided.

公开(公告)号：US20210022203A1

公开(公告)日：2021-01-21

申请号：US16929841

申请日：2020-07-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Yoo Hwa KANG ,  Changki KIM

IPC: H04W76/30 ,  H04W8/08 ,  H04W48/16 ,  H04W24/10

Abstract: A method for deactivating a UP connection (User Plane connection) in a network and a network entity for controlling UP connection deactivation in a network. The method may include: when a multi access Packet Data Unit session (MA PDU session) is established through a multi access network, determining, by a Session Management Function (SMF), to deactivate a UP connection for a first access network from the multi access network; and sending, by the SMF, a message instructing an Access and Mobility Management Function (AMF) to deactivate the UP connection for the first access network to the AMF.

公开(公告)号：US20180279411A1

公开(公告)日：2018-09-27

申请号：US15937439

申请日：2018-03-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yoo Hwa KANG ,  Changki KIM ,  No Ik PARK

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

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.