公开(公告)号：US10716083B2

公开(公告)日：2020-07-14

申请号：US16469503

申请日：2017-12-12

Applicant: LG Electronics Inc.

Inventor： Myungjune Youn ,  Jaehyun Kim ,  Hyunsook Kim ,  Jinsook Ryu

IPC: H04W60/04 ,  H04W36/00

Abstract: Provided is a tracking area assignment method by an access and mobility management function (AMF) in a wireless communication system. The method may include receiving, from a session management function (SMF), service and session continuity (SSC) mode indication information for a protocol data unit (PDU) session generated for a user equipment (UE), obtaining serving area information for a serving area of a serving user plane function (UPF) associated with the PDU session, determining the assignment of a new tracking area to the UE is necessary based on a tracking area pre-assigned to the UE and the serving area, and performing tracking area update for the assignment of the new tracking area to the UE if it is determined that the assignment of the new tracking area is necessary.

公开(公告)号：US10609608B2

公开(公告)日：2020-03-31

申请号：US16087616

申请日：2017-03-23

Applicant: LG ELECTRONICS INC.

Inventor： Sangmin Park ,  Jinsook Ryu ,  Jaehyun Kim ,  Taehun Kim ,  Hyunsook Kim

IPC: H04W36/06 ,  H04W76/30 ,  H04W76/20 ,  H04W76/19 ,  H04W36/00

Abstract: A network may instruct to change the connection of a user equipment connected to the network in a first mode, to a second mode. The network may instruct re-establishment while instructing the user equipment to change the connection. In this case, the network and the user equipment release the connection of the first mode while maintaining an uplink resource allocated to the user equipment. After completing the connection release, the user equipment may transmit a connection request to the network using the uplink resource directly without any access process.

公开(公告)号：US10602350B2

公开(公告)日：2020-03-24

申请号：US15300083

申请日：2015-04-23

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsook Kim ,  Jinsook Ryu ,  Laeyoung Kim ,  Jaehyun Kim ,  Taehun Kim

IPC: H04W8/30 ,  H04L29/06 ,  H04W60/04 ,  H04W76/18 ,  H04L12/24 ,  H04W8/04 ,  H04W8/20 ,  H04W8/28 ,  H04W36/12

Abstract: One embodiment of the present specification provides a method for responding to a failure of a specific packet data network (PDN) in user equipment (UE). The method can comprise the steps of: receiving information on whether a specific PDN has a failure; determining whether the specific PDN is in a failure state on the basis of the received information; and if it is determined that the specific PDN is in the failure state, performing a detach procedure for the specific PDN or a disconnection procedure for the specific PDN, and then, performing an attach procedure to another PDN or a PDN connection establishment procedure.

公开(公告)号：US10575212B2

公开(公告)日：2020-02-25

申请号：US16070199

申请日：2016-01-29

Applicant: LG ELECTRONICS INC. ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

Inventor： Hyunsook Kim ,  Jaiyong Lee ,  Yujeong Oh ,  Seokhwan Kong ,  Jonghun Kim

IPC: H04W28/06 ,  H04L29/08 ,  H04L12/721 ,  H04W4/50 ,  H04W28/08

Abstract: Disclosed in the present specification is a method by which network nodes calculate an optimum path for virtualized service functions (SFs). The method can comprise the steps of: generating a service function chain (SFC), in which SFs are put in order, on the basis of subscriber information-based user policy information, session policy information, and SF state information; searching for an optimum SF set on the basis of the SFC so as to calculate an optimum service function path (SFP); and updating the SFP when any one of the subscriber information-based user policy information, session policy information, and SF state information is changed.

公开(公告)号：US10524166B2

公开(公告)日：2019-12-31

申请号：US16064732

申请日：2018-01-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04W36/00 ,  H04W92/02 ,  H04W8/02 ,  H04W36/14 ,  H04W60/00 ,  H04W60/06

Abstract: According to an aspect of the present invention, there is provided an interworking method between networks of a user equipment (UE) in a wireless communication system, including: performing a first interworking procedure for changing a network of the UE from a 5-generation core network (5GC) network to an evolved packet core (EPC) network, wherein, when an interface between the 5GC and the EPC networks does not exist, the performing of the first interworking procedure includes: receiving a first indication from an access and mobility management function (AMF) of the 5GC network; and performing a handover attach procedure in the EPC network based on the first indication.

公开(公告)号：US10420029B2

公开(公告)日：2019-09-17

申请号：US15503280

申请日：2015-08-11

Applicant: LG ELECTRONICS INC.

Inventor： Jinsook Ryu ,  Hyunsook Kim ,  Laeyoung Kim ,  Jaehyun Kim ,  Taehun Kim

IPC: H04W52/02 ,  H04W76/10 ,  H04W8/02 ,  H04W28/14 ,  H04W68/02

Abstract: Disclosed are a method and apparatus for transmitting downlink data in a wireless communication system. More specifically, a method for transmitting downlink data to a user equipment (UE) in a wireless communication system comprises receiving, by a Mobile Management Entity (MME), a Downlink Data Notification message from a Serving Gateway (S-GW); and in case the MME detects that a UE is in a sleep mode, transmitting, by the MME, a response message for indicating buffering of downlink data to the S-GW, wherein the response message includes buffering time of the downlink data, and the buffering time is a time period until the UE is expected to switch from the sleep mode to a reachable state.

公开(公告)号：US10349256B2

公开(公告)日：2019-07-09

申请号：US15747853

申请日：2016-08-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/90 ,  H04W8/06 ,  H04W8/12 ,  H04L29/06 ,  H04W60/00 ,  H04W8/26

Abstract: An embodiment of the present description provides, in a situation in which, when a user equipment (UE) is roaming in a visited network, i.e. V-PLMN, the roaming is processed by means of a home routed (HR) mode and is successfully registered to H-PLMN IMS and a service is received, a method for performing authentication/registration of a UE, which is to receive an emergency service, if IMS-NNI does not exist between H-PLMN and V-PLMN.

公开(公告)号：US10341911B2

公开(公告)日：2019-07-02

申请号：US15308707

申请日：2015-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Laeyoung Kim ,  Jinsook Ryu ,  Hyunsook Kim ,  Jaehyun Kim ,  Taehun Kim

IPC: H04W36/02 ,  H04W76/10 ,  H04W76/30 ,  H04W36/00 ,  H04W76/15 ,  H04W8/08 ,  H04W36/12 ,  H04W28/08

Abstract: The present invention establishes a plurality of packet data network (PDN) connections in a user apparatus by coordinated selected IP traffic offload (CSIPTO). The present invention achieves this by receiving, from a network entity responsible for a control plane, an indication for a gateway rearrangement arising from CSIPTO. A determination is then made as to whether to maintain a previously established first PDN connection on the basis of the indication and establishing a second PDN connection on the basis of the indication. Then, if the previously established first PDN connection is to be maintained, marking one or both of the first PDN connection and the second PDN connection.

公开(公告)号：US10334484B2

公开(公告)日：2019-06-25

申请号：US15554282

申请日：2016-03-15

Applicant: LG ELECTRONICS INC.

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

IPC: H04W36/14 ,  H04W36/00 ,  H04W36/30 ,  H04W88/14 ,  H04L12/861 ,  H04W28/02 ,  H04W40/36 ,  H04W48/04 ,  H04W76/19 ,  H04W76/16 ,  H04W76/12

Abstract: Disclosed is a method for processing data, wherein, according to the occurrence of a loss of access of a terminal operating by SCM or TSCM, a first network entity operating in a first network receives a request to transmit data of second network, and receives the data of the second network from a third network entity, and buffers the data until a routing rule is updated.

公开(公告)号：US10327277B2

公开(公告)日：2019-06-18

申请号：US15745655

申请日：2016-06-20

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A disclosure of the present specification provides a method for establishing a packer data network (PDN) connection by a user equipment (UE). The method may comprise the steps of: transmitting a session initiation protocol (SIP)-based request message for requesting sending of a voice over LTE (VoLTE) call through a first type PDN connection; receiving, from a network node, a message including information directly or indirectly indicating that there is a problem in the first type PDN connection, instead of a normal response message to the SIP-based request message; determining to change the PDN type from the first type to a second type, on the basis of the information in the received message; and transmitting, to a mobility management entity (MME), a PDN connection request message including information on the changed second type.