公开(公告)号：US10798618B2

公开(公告)日：2020-10-06

申请号：US16065083

申请日：2017-12-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04W60/00 ,  H04W36/00 ,  H04W36/32 ,  H04W88/14 ,  H04W80/10 ,  H04W76/00 ,  H04L12/701 ,  H04W8/02

Abstract: The one disclosure of the present specification proposes a method for managing session. The method may be performed by a session management function, SMF, node and comprise: generating a packet data unit, PDU, session for a user equipment, UE; receiving, from an access and mobility management function, AMF, node, information about the UE; and determining, based on the information, whether to transmit an indication for notifying a user plane function, UPF, node to discard a downlink data for the PDU session of the UE. The determination may be dependent on whether the PDU session corresponds to a first service provided to the UE.

公开(公告)号：US10798556B2

公开(公告)日：2020-10-06

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：US10721713B2

公开(公告)日：2020-07-21

申请号：US16544584

申请日：2019-08-19

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04W68/02 ,  H04W76/28 ,  H04W68/00 ,  H04W8/04 ,  H04W8/06 ,  H04W8/18 ,  H04W60/00 ,  H04W60/06

Abstract: Disclosed herein are a method and apparatus for monitoring UE reachability in a wireless communication system. A method for monitoring UE reachability may include receiving, by a Mobility Management Entity, a monitoring request message for UE reachability including a maximum response time from a Home Subscriber Server, detecting, by the MME, the UE reachability if it is expected that paging is able to be transmitted to UE when extended Discontinuous Reception is applied to the UE, and sending, by the MME, a UE reachability notification to a Service Capability Exposure Function before a next paging occasion of the UE, wherein the maximum response time may indicate a time during which the UE maintains a reachable state so that downlink data is reliably delivered to the UE, and wherein an occasion when the UE reachability notification is transmitted may be determined by taking into consideration the maximum response time.

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：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：US10470089B2

公开(公告)日：2019-11-05

申请号：US15737107

申请日：2016-06-17

Applicant: LG ELECTRONICS INC.

Inventor： Jaewook Lee ,  Sunghoon Jung ,  Jinsook Ryu

IPC: H04W36/00 ,  H04W36/08 ,  H04W36/30 ,  H04W48/16 ,  H04W48/20

Abstract: A method for processing a signal at a user equipment (UE) in a wireless communication system is disclosed. The method includes steps of receiving information on multiple first threshold values for a neighbor cell measurement from a serving cell; measuring the signal from the signal of the serving cell; comparing the measured signal with the multiple first threshold values and multiple second threshold values of a cell enhancement (CE) mode; and performing the neighbor cell measurement for a cell reselection or a change of the CE mode according to a result of comparing.

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.