公开(公告)号：US11096053B2

公开(公告)日：2021-08-17

申请号：US16348075

申请日：2017-11-07

Applicant: LG Electronics Inc.

Inventor： Hyunsook Kim ,  Laeyoung Kim ,  Myungjune Youn

IPC: H04W12/062 ,  H04W76/11 ,  H04W8/04 ,  H04W8/08 ,  H04W60/04

Abstract: A disclosure of the present specification provides a method for processing a NAS request message by an MMF node. The method may comprise the steps of: when it is identified that an NAS request message has been received through a second access network, checking whether a first MM context and a first security context are included therein; and acquiring a second security context from an authentication CP node, and generating a second MM context.

公开(公告)号：US11076376B2

公开(公告)日：2021-07-27

申请号：US16915451

申请日：2020-06-29

Applicant: LG ELECTRONICS INC.

Inventor： Myungjune Youn ,  Laeyoung Kim ,  Jinsook Ryu

IPC: H04W60/06 ,  H04W76/30 ,  H04W8/20 ,  H04W68/00 ,  H04W8/18 ,  H04W36/14 ,  H04W76/32

Abstract: Disclosed herein is a network-initiated deregistration method by an access and mobility management function (AMF) in a wireless communication system, including: receiving a first message having a removal reason configured to subscription withdrawn from a unified data management (UDM); and transmitting a deregistration request message for requesting the deregistration to a user equipment (UE), in which the deregistration is enabled to be performed for all accesses in which the UE is registered when the removal cause received from the UDM through the first message indicates the subscription withdrawn of the UE.

公开(公告)号：US11039495B2

公开(公告)日：2021-06-15

申请号：US16496193

申请日：2018-03-20

Applicant: LG Electronics Inc.

Inventor： Sangmin Park ,  Myungjune Youn ,  Hyunsook Kim ,  Jinsook Ryu ,  Dongsoo Kim

IPC: H04W76/25 ,  H04W76/18 ,  H04W76/30 ,  H04W8/08 ,  H04W48/00 ,  H04W80/10

Abstract: According to an aspect of the present invention, a method for transporting a non-access stratum (NAS) message of an access and mobility management function (AMF) in a wireless communication system may include: receiving, from a user equipment (UE), an uplink (UL) NAS message including a session management (SM) message for a request related to a protocol data unit (PDU) session; transporting, to a predetermined second Session Management Function (SMF), the SM message if it is determined that it is impossible to route the SM message to a first SMF as a transport target of the SM message; receiving, from the second SMF, an SM rejection message for the SM message; and transmitting, to the UE, a downlink (DL) NAS message including the SM rejection message.

公开(公告)号：US10917868B2

公开(公告)日：2021-02-09

申请号：US16494240

申请日：2018-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Myungjune Youn ,  Jinsook Ryu

IPC: H04W60/00 ,  H04W60/04 ,  H04W76/27 ,  H04W8/06 ,  H04W52/02 ,  H04W68/02

Abstract: In one aspect of the present invention, there is provided an event notification method of an AMF in a wireless communication system. The event notification method includes receiving, from a requester, a subscribe message for a notification subscribe to a mobility event of a UE, wherein the subscribe message includes an identifier (ID) of the UE and an event filter for filtering the mobility event; performing a registration procedure for the UE; and when the mobility event filtered by the event filter happens in the registration procedure, completing the registration procedure of a notification message for the mobility event and then sending the notification message to a SMF, wherein if the subscribe message includes an indicator indicating a maintenance of a connected mode of the UE, the connected mode of the UE is maintained for a predetermined time after the registration procedure is completed.

公开(公告)号：US20210029628A1

公开(公告)日：2021-01-28

申请号：US17041188

申请日：2019-02-07

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyun Kim ,  Myungjune Youn ,  Sangmin Park ,  Jinsook Ryu

IPC: H04W48/18 ,  H04W76/18 ,  H04W76/20 ,  H04W48/08

Abstract: Disclosed in the present specification is a method by which a user equipment (UE) performs access control. The method can comprise the steps of: transmitting a protocol data unit (PDU) session establishment or modification request message; and receiving a PDU session establishment or modification rejection message. The rejection message can comprise information on a backoff timer and session network slice selection assistance information (S-NSSAI). The method can comprise the steps of: driving the backoff timer while being linked with the S-NSSAI; and performing access control on the basis of the S-NSSAI.

公开(公告)号：US10827536B2

公开(公告)日：2020-11-03

申请号：US16075806

申请日：2016-11-29

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsook Kim ,  Jinsook Ryu ,  Myungjune Youn ,  Dongsoo Kim ,  Sungduck Chun ,  Laeyoung Kim

IPC: H04W76/10 ,  H04W80/10 ,  H04W76/25 ,  H04W60/00 ,  H04W76/12 ,  H04L29/08 ,  H04W60/06 ,  H04W76/27 ,  H04W76/22 ,  H04L12/14

Abstract: One disclosure of the present specification provides a method for a control plane (CP) function entity creating a session, the CP function entity being in charge of managing a session in a next-generation mobile communication network. The method may comprise the steps of: receiving a connectivity request message from a terminal if the creation of a session is not included in a process by which the terminal attaches to a core network of the next-generation mobile communication; on the basis of information on the type of service to be provided to the terminal, deciding to create, for the terminal, a session that needs to be always-on, or in other words, always-connected; and transmitting, to the terminal, a connectivity completion message including information indicating the session that needs to be always-on, or in other words, always-connected.

公开(公告)号：US10764740B2

公开(公告)日：2020-09-01

申请号：US16660167

申请日：2019-10-22

Applicant: LG Electronics Inc.

Inventor： Laeyoung Kim ,  Hyunsook Kim ,  Jinsook Ryu ,  Sangmin Park ,  Myungjune Youn

IPC: H04W8/10 ,  H04W8/06 ,  H04W36/14 ,  H04W60/06

Abstract: In one embodiment of the present invention, a method for enabling a UDM (Unified Data Management) to perform a registration related procedure of an AMF (Access and Mobility Management Function) in a wireless communication system comprises the steps of: receiving, by the UDM, a message related to serving AMF registration of a UE, which includes access type information and ID (Identity) information, from a first AMF; transmitting, by the UDM, a deregistration related message to a second AMF when the second AMF exists, wherein the second AMF is registered as a serving AMF of the UE and related to the access type information.

公开(公告)号：US10694434B2

公开(公告)日：2020-06-23

申请号：US15862359

申请日：2018-01-04

Applicant: LG ELECTRONICS INC.

Inventor： Jinsook Ryu ,  Hyunsook Kim ,  Myungjune Youn ,  Sangmin Park

IPC: H04W36/00 ,  H04W36/14

Abstract: A source BS may determine that handover of a UE to a target BS is needed and transmit a handover request message indicating a request of handover to the target BS to a network node to which the source BS is connected. The handover request message may include radio access network (RAN) type information indicating a target RAN and radio access technology (RAT) type information indicating a target RAT.

公开(公告)号：US10687380B2

公开(公告)日：2020-06-16

申请号：US15745618

申请日：2016-06-20

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsook Kim ,  Jinsook Ryu ,  Laeyoung Kim ,  Myungjune Youn ,  Dongsoo Kim

IPC: H04W76/18 ,  H04W36/16 ,  H04W36/30 ,  H04W36/36 ,  H04W40/24 ,  H04L29/14 ,  H04W76/19 ,  H04L29/06 ,  H04W24/04 ,  H04W8/08 ,  H04W36/00 ,  H04W80/10 ,  H04L29/12 ,  H04W76/12

Abstract: A disclosure of the present specification provides a packet data network (PDN) connection management method performed by packet data network gateway (P-GW). The method may comprise the steps of: establishing a first type PDN connection with a user equipment (UE); recognizing that an error has occurred in the first type PDN connection, after establishing the first type-PDN connection; and transmitting a delete bearer request message to a mobility management entity (MME) in order to perform a bearer de-activation procedure according to the recognition of the error occurrence. The delete bearer request message may include information indirectly indicating that an error has occurred in the first type PDN connection.

公开(公告)号：US10652793B2

公开(公告)日：2020-05-12

申请号：US16070036

申请日：2017-01-16

Applicant: LG ELECTRONICS INC.

Inventor： Laeyoung Kim ,  Jaehyun Kim ,  Myungjune Youn ,  Dongsoo Kim

IPC: H04W36/12 ,  H04W88/16 ,  H04W36/02 ,  H04W76/20 ,  H04W76/27 ,  H04W8/08 ,  H04W68/00 ,  H04W36/34 ,  H04W84/04

Abstract: One embodiment of the present invention relates to a method by which a packet data network gateway (PGW) processes data for an UE in a wireless communication system, the method comprising the steps of: receiving a tracking area identifier (TAI) list from a mobility management entity (MME); and receiving downlink data for the UE from a network, wherein the PGW buffers the downlink data when all of the tracking areas (TAs), which belong to the TAI list, are not included in the same serving gateway (SGW) service region.