公开(公告)号：US20230189268A1

公开(公告)日：2023-06-15

申请号：US17632581

申请日：2020-07-31

Applicant: LG ELECTRONICS INC.

Inventor： Laeyoung Kim ,  Sungduck Chun ,  Myungjune Youn

IPC: H04W72/21 ,  H04W76/27

CPC classification number: H04W72/21 ,  H04W76/27 ,  H04W88/06

Abstract: A disclosure of the present specification provides an operating method for user equipment (UE) supporting a multiple universal subscriber identity module (USIM). The operating method may comprise the steps of: transmitting, by the UE, a first radio resource control (RRC) message to a first radio access network (RAN) in a first network; and receiving, by the UE, a second RRC message from the first RAN. The first RRC message may be transmitted on the basis of determination that the UE moves from the first network to a second network. The first RRC message may include first information about one or more protocol data unit (PDU) sessions established via the first RAN. The first and second RRC messages may be used to change an RRC state to an RRC idle state or an RRC deactivated state.

公开(公告)号：US11638140B2

公开(公告)日：2023-04-25

申请号：US17355632

申请日：2021-06-23

Applicant: LG Electronics Inc.

Inventor： Laeyoung Kim ,  Jaehyun Kim ,  Myungjune Youn

IPC: H04W8/12 ,  H04W8/04

Abstract: A method for transmitting and receiving a signal related to switching 3rd generation partnership project (3GPP) access to a 5th generation system (5GS) in an evolved packet system (EPS) in a wireless communication system includes: a step in which a second access and mobility management function (AMF) receives a message, related to a registration request and including a first 5G globally unique temporary identifier (5G-GUTI), from a UE that receives non-3GPP access service through the 5GS and 3GPP access service through the EPS; and a step in which the second AMF transmits to the UE, a message related to a registration acceptance and including a second 5G-GUTI. The first 5G-GUTI includes ID information on the first AMF which serves the non-3GPP access of the UE, and the second 5G-GUTI includes ID information on the second AMF which serves both the non-3GPP access and the 3GPP access of the UE.

公开(公告)号：US11606734B2

公开(公告)日：2023-03-14

申请号：US17573042

申请日：2022-01-11

Applicant: LG ELECTRONICS INC.

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

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

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：US11523319B2

公开(公告)日：2022-12-06

申请号：US16065120

申请日：2018-01-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04W36/14 ,  H04W76/12

Abstract: It is disclosed a method for managing a PDU session in a wireless communication system and an apparatus for supporting the same. Particularly, a method for performing handover of a User Equipment (UE) performed by a source Radio Access Network (RAN) that includes a processor, a memory and a communication module in a wireless communication system may include determining to initiate handover to a target RAN; and transmitting a Handover Required message to a source Access and Mobility Management Function (AMF), and the handover is a handover in a case that there is no interface between the RANs or AMF change is required, and the Handover Required message includes a PDU session Identifier (ID) of an activated Protocol Data Unit (PDU) session.

公开(公告)号：US11463929B2

公开(公告)日：2022-10-04

申请号：US16650831

申请日：2018-09-28

Applicant: LG ELECTRONICS INC.

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

IPC: H04W36/14 ,  H04W36/00

Abstract: An embodiment of the present invention relates to a method for an access and mobility management function (AMF) transmitting and receiving a signal related to a handover from 5GS to an evolved packet system (EPS) of a user equipment (UE) in a wireless communication system the method comprising a step in which the AMF receives a handover required message from a next-generation radio access network (NG-RAN); a step in which the AMF requests a session management (SM) context to a packet data network gateway+session management function (PGW+SMF); a step of receiving an SM context from the PGW+SMF; and a step in which the AMF transmits a handover command to the NG-RAN, wherein the SM context request is for a PDU session associated with 3GPP access among a plurality of protocol data unit (PDU) sessions.

公开(公告)号：US11457403B2

公开(公告)日：2022-09-27

申请号：US17041188

申请日：2019-02-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04W48/18 ,  H04W76/20 ,  H04W76/18 ,  H04W48/08 ,  H04W84/04

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：US20220287116A1

公开(公告)日：2022-09-08

申请号：US17638045

申请日：2020-08-28

Applicant: LG ELECTRONICS INC.

Inventor： Laeyoung Kim ,  Myungjune Youn

IPC: H04W76/14

Abstract: One disclosure of the present specification provides a method for performing, by relay UE, communication related to PS Data Off. The method may comprise the steps of: receiving a direct communication request message from remote UE, wherein the direct communication request message includes PS Data Off status information of the remote UE; determining whether or not to establish a protocol data unit (PDU) session for the remote UE, on the basis of the PS Data Off status information of the remote UE; and transmitting a PDU session establishment request message to a network node, on the basis of the determination to the establishing of the PDU session for the remote UE.

公开(公告)号：US11363664B2

公开(公告)日：2022-06-14

申请号：US16967403

申请日：2019-02-12

Applicant: LG ELECTRONICS INC.

Inventor： Myungjune Youn ,  Laeyoung Kim ,  Hyunsook Kim

IPC: H04W4/00 ,  H04W76/20 ,  H04W48/18

Abstract: To achieve the aforementioned objective, one disclosure of the present specification may provide a method for transmitting an SM signal to a terminal capable of connecting to a plurality of access networks. The method may comprise the steps of: an AMF node receiving a request for transmission of the SM signal from an SMF node, the request comprising information about an access network to transmit the SM signal; the AMF node determining an access network to transmit the SM signal to the terminal on the basis of information about the access network; and if the terminal is connected to the AMF node via the determined access network, the AMF node transmitting the SM signal to the terminal via the determined access network.

公开(公告)号：US11350475B2

公开(公告)日：2022-05-31

申请号：US16926185

申请日：2020-07-10

Applicant: LG Electronics Inc.

Inventor： Myungjune Youn ,  Laeyoung Kim ,  Jaehyun Kim ,  Hyunsook Kim ,  Sangmin Park

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

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：US20220167185A1

公开(公告)日：2022-05-26

申请号：US17599672

申请日：2019-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Hyunsook Kim ,  Sungduck Chun ,  Laeyoung Kim ,  Sangmin Park ,  Myungjune Youn

IPC: H04W24/04 ,  H04W8/02 ,  H04W48/04 ,  H04W60/04

Abstract: A disclosure of the present specification provides a method performed by a network node that manages mobility in a first public land mobile network (PLMN). The network node may receive an access request message of a terminal from a base station in the first PLMN. The terminal may be a terminal having joined a second PLMN. On the basis of occurrence of a failure in the second PLMN, the network node may determine whether to allow the terminal to roam to the first PLMN.