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：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.

公开(公告)号：US11240719B2

公开(公告)日：2022-02-01

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: H04W36/00 ,  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：US11184838B2

公开(公告)日：2021-11-23

申请号：US16623757

申请日：2018-06-18

Applicant: LG ELECTRONICS INC.

Inventor： Sangmin Park ,  Jinsook Ryu ,  Hyunsook Kim

IPC: H04W60/00 ,  H04W48/16 ,  H04W8/08 ,  H04W68/00 ,  H04W80/10

Abstract: A method for registering a terminal of an access and mobility management function (AMF) in a wireless communication system, according to one aspect of the present invention, comprises the steps of: receiving, from a terminal, a registration request message requesting registration of the terminal; and transmitting, to the terminal, a registration response message in response to the registration request message, wherein the registration request message may include: a session management (SM) message for requesting the establishment of a packet data unit (PDU) session for the terminal; and an indicator for indicating whether the establishment of the PDU session is essential.

公开(公告)号：US11184808B2

公开(公告)日：2021-11-23

申请号：US16690732

申请日：2019-11-21

Applicant: LG Electronics Inc.

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

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

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：US11096037B2

公开(公告)日：2021-08-17

申请号：US16064942

申请日：2018-04-26

Applicant: LG Electronics Inc.

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

IPC: H04W8/10 ,  H04W8/06 ,  H04W36/14 ,  H04W60/06 ,  H04W88/14

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：US10972960B2

公开(公告)日：2021-04-06

申请号：US15521853

申请日：2015-11-10

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyun Kim ,  Youngdae Lee ,  Laeyoung Kim ,  Ki-Dong Lee ,  Hyunsook Kim ,  Taehun Kim

IPC: H04W48/06 ,  H04W28/02 ,  H04L12/859 ,  H04L12/851

Abstract: A disclosure of the present specification provides a method for blocking network access. The method may comprise the steps of: receiving application specific congestion control for data communication (ACDC) blocking information; driving a blocking timer when it is determined by an ACDC blocking check that a network access attempt by a first application being executed is blocked; determining the category of a second application being executed according to a network access attempt by the second application; performing an ACDC blocking check on the basis of the determined category of the second application and the received ACDC blocking information when the determined category of the second application has a higher priority than the category of the first application; and stopping the blocking timer when the network access attempt by the second application should be permitted according to the ACDC blocking check.

公开(公告)号：US10772034B2

公开(公告)日：2020-09-08

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: H04W48/00 ,  H04W48/16 ,  H04W48/08 ,  H04W48/18 ,  H04W76/27 ,  H04W76/10 ,  H04W48/12 ,  H04W88/10

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.