公开(公告)号：US20200252900A1

公开(公告)日：2020-08-06

申请号：US16857744

申请日：2020-04-24

Applicant: LG ELECTRONICS INC.

Inventor： Taehun KIM ,  Laeyoung KIM ,  Sangmin PARK

IPC: H04W60/04 ,  H04W68/02 ,  H04W76/27 ,  H04W76/30 ,  H04W36/00 ,  H04W4/70 ,  H04W74/08 ,  H04W76/12 ,  H04W76/18

Abstract: In an aspect of the present invention, a method for performing a service request message of an Access and Mobility Management Function (AMF) in a wireless communication system may include a packet data unit (PDU) session identifier (ID) for a PDU session whose activation is desired by a user equipment from the user equipment; transmitting a first message comprising the PDU session ID to a session management function (SMF); when an establishment of the PDU session is rejected by the SMF: receiving a second message comprising a reject cause of the PDU session establishment as a response to the first message; and transmitting a service response message comprising the reject cause and a PDU session ID rejected by the reject cause to the user equipment.

公开(公告)号：US20200029384A1

公开(公告)日：2020-01-23

申请号：US16499711

申请日：2018-03-27

Applicant: LG Electronics Inc.

Inventor： Jongwoo HONG ,  Taehun KIM ,  Jaewook LEE ,  Sangwon KIM

IPC: H04W76/19

Abstract: The present specification provides a method for performing a radio link failure (RLF) recovery procedure in a wireless communication system.The method performed by a first user equipment (UE) includes, wherein the first UE is connected to a base station via a UE-to-UMTS (Uu) link and is connected to a second UE via a sidelink, determining a path for performing the RLF recovery procedure when a RLF is detected on the Uu link, and performing an RRC connection re-establishment procedure in order to recover the RLF through the determined path.

公开(公告)号：US20190373581A1

公开(公告)日：2019-12-05

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: H04W68/02 ,  H04W76/28

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：US20190357295A1

公开(公告)日：2019-11-21

申请号：US16484781

申请日：2018-02-12

Applicant: LG ELECTRONICS INC.

Inventor： Taehun KIM ,  Daewook BYUN ,  Jaehyun KIM

IPC: H04W76/25 ,  H04W68/00 ,  H04L5/00 ,  H04W76/27

Abstract: Disclosed herein is a method for transmitting and receiving a NAS message in a wireless communication system and an apparatus for the same. Particularly, a method for transmitting a Non-Access Stratum (NAS) message to a User Equipment (UE) in a wireless communication system may include receiving, by a base station, an indication for a transmission of a downlink NAS message from a Core Network (CN) node; initiating, by the base station, a transmission of paging to the UE, when a connection related to the UE is maintained between the base station and the CN node, but the UE is in a state in which a connection is related from the base station; and transmitting, by the base station, an Acknowledgement (ACK) indication to the CN node in response to the indication after the paging transmission is initiated.

公开(公告)号：US20190289571A1

公开(公告)日：2019-09-19

申请号：US16302393

申请日：2017-05-16

Applicant: LG Electronics Inc.

Inventor： Sangmin PARK ,  Jinsook RYU ,  Jaehyun KIM ,  Laeyoung KIM ,  Taehun KIM

IPC: H04W68/02 ,  H04W8/08

Abstract: A method for controlling mobile terminated (MT) data in a wireless communication system and a device therefor are disclosed. The method for controlling MT data by a user equipment (UE) in a wireless communication system includes receiving paging from a network and transmitting a tracking area update (TAU) request message to a mobility management entity (MME) in response to the paging when an EPS update status of the UE is EU2 NOT UPDATED due to an unsuccessful attempt of a last TAU procedure of the UE upon receiving the paging, wherein when the UE is using only signaling optimization to enable delivery of user data over a control plane via the MME, a first active flag in the TAU request message is set.

公开(公告)号：US20190254109A1

公开(公告)日：2019-08-15

申请号：US16347548

申请日：2017-11-03

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae LEE ,  Sangwook HAN ,  Bokyung BYUN ,  Taehun KIM

IPC: H04W76/27

CPC classification number: H04W76/27 ,  H04W68/00

Abstract: Provided is a method for a terminal in an RRC inactive (RRC_INACTIVE) state to change an RRC state in a wireless communication system. The method comprises: a step of receiving, from a network, an indication indicating to enter an RRC idle state; a step of determining if the indication is valid for a terminal; and a step of entering the RRC idle state if it is determined that the indication is valid for the terminal.

公开(公告)号：US20190110243A1

公开(公告)日：2019-04-11

申请号：US16086293

申请日：2017-03-30

Applicant: LG ELECTRONICS INC.

Inventor： Sungduck CHUN ,  Jaehyun KIM ,  Taehun KIM ,  Hyunsook KIM ,  Sangmin PARK ,  Myungjune YOUN

IPC: H04W48/16 ,  H04W76/27 ,  H04W76/10 ,  H04W48/08

Abstract: A core network to which a cell of a base station can be connected may not be specified to be one. For example, a cell may be connected to an EPC, may be connected to a next-generation core network, or may be connected to both an EPC and a next-generation core network. The base station may transmit core network information relating to a core network to which the cell is connected, on the cell. A user equipment may determine whether to camp on the cell on the basis of the core network information.

公开(公告)号：US20190021023A1

公开(公告)日：2019-01-17

申请号：US16065615

申请日：2016-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Daewook BYUN ,  Jinsook RYU ,  Taehun KIM ,  Jian XU ,  Seokjung KIM

IPC: H04W28/02 ,  H04W76/27 ,  H04W60/04 ,  H04W4/70

Abstract: Provided are a method for establishing a bearer for the transmission of user data in a user plane based cellular Internet of Things (CIoT) in a wireless communication system, and a device supporting the same. A base station receives a tracking area update (TAU) request message from a terminal, transmits, to a mobility management entity (MME), an initial UE message including the TAU request message, receives, from the MME, a downlink NAS transport message including a resume indication, and can transmit, to the MME, a UE context resume request message on the basis of the resume indication.

公开(公告)号：US20180352449A1

公开(公告)日：2018-12-06

申请号：US15777090

申请日：2016-10-25

Applicant: LG ELECTRONICS INC.

Inventor： Sangmin PARK ,  Jaehyun KIM ,  Taehun KIM

IPC: H04W24/02 ,  H04W28/02

CPC classification number: H04W74/08 ,  H04W76/10

Abstract: A terminal and a method for operating the terminal are disclosed, the method comprising: transmitting a PDN connection request message without an APN; receiving a PDN connection rejection message including a backoff timer; and applying the backoff timer only to a specific APN.

公开(公告)号：US20180324875A1

公开(公告)日：2018-11-08

申请号：US15764744

申请日：2016-09-30

Applicant: LG ELECTRONICS INC.

Inventor： Laeyoung KIM ,  Hyunsook KIM ,  Jinsook RYU ,  Jaehyun KIM ,  Taehun KIM ,  Sungduck CHUN

IPC: H04W76/10 ,  H04W76/30 ,  H04L29/06 ,  H04W8/02 ,  H04W80/10 ,  H04W88/04

Abstract: One embodiment of the present invention, with respect to a call receiving method of a UE in a wireless communication system, a call receiving method of a UE comprises the steps of: establishing a one-to-one connection with a relay UE; transmitting an SIP register message including information pertaining to an IMS registration cancellation of the relay UE to an SIP server; and receiving a call from the SIP server, wherein when a connection between the UE and the relay UE is cancelled, the relay UE is IMS registered.