公开(公告)号：US20210360569A1

公开(公告)日：2021-11-18

申请号：US17274253

申请日：2019-09-26

Applicant: LG ELECTRONICS INC.

Inventor： Sangmin PARK ,  Jaehyun KIM

IPC: H04W60/06 ,  H04W8/02 ,  H04W28/02

Abstract: One disclosure of the present specification provides a method performed by a terminal that performs registration in a non-3rd generation partnership project (3GPP) access. According to the method, the terminal may receive a rejection message including a value of a back-off timer. In addition, the terminal may determine a value of a non-3GPP de-registration timer on the basis of the value of the back-off timer. In this case, the value of the non-3GPP de-registration timer may be determined to be greater than the value of the back-off timer.

公开(公告)号：US20200322857A1

公开(公告)日：2020-10-08

申请号：US16765463

申请日：2018-11-16

Applicant: LG ELECTRONICS INC.

Inventor： Sangmin PARK ,  Taehun KIM ,  Myungjune YOUN ,  Hyunsook KIM ,  Jinsook RYU

IPC: H04W36/12 ,  H04W36/00 ,  H04W76/22 ,  H04W76/34

Abstract: According to one aspect of the present invention, a method for supporting a user equipment (UE) handover of a target (T)-access and mobility management function (AMF) in a wireless communication system may comprise the steps of: receiving a UE context creation request message from a source (S)-AMF, wherein the UE context creation request message includes packet data unit (PDU) session identifiers (ID) as a handover target and single (S)-network slice selection assistance information (NSSAI) corresponding to each PDU session ID; determining whether the corresponding S-NSSAI is valid in the T-AMF; and sending, to a session management function (SMF), a PDU session update session management (SM) context request message only for a PDU session ID that corresponds to the S-NSSAI determined to be valid according to the determination result, out of the PDU session IDs.

公开(公告)号：US20200221529A1

公开(公告)日：2020-07-09

申请号：US16818331

申请日：2020-03-13

Applicant: LG Electronics Inc.

Inventor： Sangmin PARK ,  Hyunsook KIM ,  Jinsook RYU ,  Dongsoo KIM ,  Myungjune YOUN

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

Abstract: A method for forwarding a non-access stratum (NAS) message of a user equipment (UE) in a wireless communication system is disclosed. The method includes sending an uplink (UL) NAS message including a session management (SM) message to an access and mobility management function (AMF), and receiving, from the AMF, an indication message indicating that the SM message is unroutable, wherein indication information indicating that the SM message is unroutable is delivered to a SM sublayer of the UE.

公开(公告)号：US20200092932A1

公开(公告)日：2020-03-19

申请号：US16573996

申请日：2019-09-17

Applicant: LG Electronics Inc.

Inventor： Myungjune YOUN ,  Laeyoung KIM ,  Jaehyun KIM ,  Hyunsook KIM ,  Sangmin PARK

IPC: H04W76/16 ,  H04W80/02 ,  H04W76/20 ,  H04W76/30

Abstract: Systems and techniques for handling a protocol data unit (PDU) session by a wireless device implementing an access stratum (AS) layer and a non-access stratum (NAS) layer in a wireless communication system. An example technique includes determining, by the AS layer of the wireless device, whether a user plane for the PDU session is activated or released; transferring, by the AS layer and to the NAS layer of the wireless device based on a determination that the user plane for the PDU session is activated, first information indicating that the user plane for the PDU session is activated; and transferring, by the AS layer and to the NAS layer of the wireless device based on a determination that the user plane for the PDU session is released, second information indicating that the user plane for the PDU session is released.

公开(公告)号：US20200092710A1

公开(公告)日：2020-03-19

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 ,  H04W60/06 ,  H04W36/14

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：US20190342940A1

公开(公告)日：2019-11-07

申请号：US15776375

申请日：2016-11-17

Applicant: LG ELECTRONICS INC.

Inventor： Jinsook RYU ,  Sangmin PARK ,  Jaehyunn KIM ,  Taehun KIM

IPC: H04W76/50 ,  H04W4/90 ,  H04W76/28 ,  H04W8/16 ,  H04W76/30 ,  H04W60/00 ,  H04W74/08

Abstract: Disclosed are a method for supporting extended idle mode discontinuous reception activation in a wireless communication system, and an apparatus therefor. Specifically, the method for supporting extended idle mode discontinuous reception (eDRX) activation in a wireless communication system comprises the steps of: when a triggering condition for a tracking area update (TAU) procedure is satisfied, transmitting, by a terminal, a TAU request message to a mobility management entity (MME); and receiving, by the terminal, a TAU accept message from the MME in response to the TAU request message, wherein, while the terminal has a packet data network (PDN) connection for providing an emergency bearer service, an eDRX parameter is negotiated between the terminal and the MME, using the TAU request message and the TAU accept message, but the eDRX may not be used by the terminal.

公开(公告)号：US20190313473A1

公开(公告)日：2019-10-10

申请号：US16315579

申请日：2017-07-04

Applicant: LG Electronics Inc.

Inventor： Jaehyun KIM ,  Sangmin PARK ,  Jinsook RYU ,  Myungjune YOUN ,  Sungduck CHUN

IPC: H04W76/25 ,  H04W48/04 ,  H04W76/18 ,  H04W48/16 ,  H04W8/08 ,  H04W76/27 ,  H04W48/00

Abstract: Disclosed in the present specification is a method by which a user equipment (UE) performs access control. The method comprises the steps of: allowing a non-access-stratum (NAS) layer of the UE to transfer information on an important service and a NAS signaling request to a radio resource control (RRC) layer, when the important service is required even if access to a cell is currently interrupted or a back-off timer is operated; and allowing the RRC layer to skip or override an inspection for access control on the basis of the information on the important service, wherein, the information on the important service can be set in advance.

公开(公告)号：US20190289506A1

公开(公告)日：2019-09-19

申请号：US16348702

申请日：2017-11-09

Applicant: LG Electronics Inc.

Inventor： Sangmin PARK ,  Jinsook RYU ,  Hyunsook KIM ,  Myungjune YOUN ,  Jaehyun KIM ,  Taehun KIM

IPC: H04W36/00 ,  H04W36/14 ,  H04W8/08 ,  H04W76/27 ,  H04W36/26

Abstract: A user equipment according to the present invention performs a handover from a first system to a second system. When a user equipment receives a command to hand over to the second system, while using a plurality of protocol data unit (PDU) sessions for the same data network (DN) in the first system, the user equipment transmits first session information of a firstPDU session among the plurality of PDU sessions, establishes a packet data network (PDN) connection with the second system, on the basis of the first session information, and maps the first PDU session to the PDN connection. When the user equipment is required to establish a dedicated bearer for a PDU session (second PDU session) other than the first PDU session among the plurality of PDU sessions, the user equipment transmits a bearer generation request message requesting to generate a dedicated bearer for the PDN connection.

公开(公告)号：US20190268827A1

公开(公告)日：2019-08-29

申请号：US16348815

申请日：2017-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyun KIM ,  Taehun KIM ,  Sangmin PARK

IPC: H04W48/08

Abstract: One disclosure of the present specification provides a method by which a wireless device transmits an RRC message. The method can comprise the steps of: allowing, an AS layer of the wireless device, to acquire an NAS signaling request message, an RRC establishment cause field, and a call type field from an NAS layer; checking the acquired RRC establishment cause field and the call type field; determining, when the NAS signaling request message includes user data according to an optimization plan through a control plane, whether to perform or skip an examination for access blocking (AB) based on the RRC establishment cause field and/or the call type field; and transmitting, when blocking is not achieved or when the examination is skipped according to the examination result, an RRC connection request message to a base station so as to transmit the NAS signaling request message including the user data.

公开(公告)号：US20190200264A1

公开(公告)日：2019-06-27

申请号：US16065083

申请日：2017-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsook KIM ,  Jinsook RYU ,  Sangmin PARK ,  Myungjune YOUN

IPC: H04W36/00 ,  H04W36/32

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.