公开(公告)号：US20210029603A1

公开(公告)日：2021-01-28

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: 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：US20200275331A1

公开(公告)日：2020-08-27

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：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：US20200037386A1

公开(公告)日：2020-01-30

申请号：US16496325

申请日：2018-03-20

Applicant: LG Electronics Inc.

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

IPC: H04W76/25 ,  H04W8/08 ,  H04W80/10 ,  H04W48/00 ,  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：US20190357129A1

公开(公告)日：2019-11-21

申请号：US16461660

申请日：2017-11-16

Applicant: LG Electronics Inc.

Inventor： Sangmin PARK ,  Jinsook RYU ,  Hyunsook KIM

IPC: H04W48/18 ,  H04W60/00

Abstract: A method for selecting a serving AMF of a network node in a wireless communication system includes receiving a registration request message of a user equipment (UE), the registration request message including a network slice selection assistance information (NSSAI) for a slice requested by the UE and priority information of the NSSAI; determining whether the NSSAI is valid for the UE; when the NSSAI is valid for the UE, searching a first AMF which is able to support the NSSAI based on the priority information; and when the first AMF is searched, selecting the first AMF as the serving AMF serving the UE and transmitting the registration request message to the first AMF.

公开(公告)号：US20190342827A1

公开(公告)日：2019-11-07

申请号：US16064835

申请日：2017-07-03

Applicant: LG Electronics Inc.

Inventor： Laeyoung KIM ,  Hyunsook KIM ,  Jinsook RYU ,  Sangmin PARK

IPC: H04W48/18

Abstract: An embodiment of the present invention provides a method for supporting non-access stratum (NAS) signaling of a user equipment (UE) by a base station in a wireless communication system, the method comprising the steps of: transmitting, to the UE, information for supporting a connection to a next generation (NG) core; receiving a NAS-related message from the UE; performing one of MME selection and AMF selection according to whether the NAS-related message includes information regarding the use of NAS; and transmitting an NAS message to an MMF or an AMF which is determined as a result of performing one of the MME selection and the AMF selection.

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：US20190159107A1

公开(公告)日：2019-05-23

申请号：US16091734

申请日：2017-04-03

Applicant: LG Electronics Inc.

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

IPC: H04W48/04 ,  H04W8/02 ,  H04W12/06

Abstract: A disclosure of the present specification provides a method in which a network node processes an access request from a user equipment (UE). The method may comprise the steps of: receiving an access request message from a UE; and selecting a control plane (CP) function node on the basis of information associated with the UE, in response to the access request message. Here, the selected CP function node may perform a common or basic function, which is shared among slice instances of a network. Each slice instance may include a service-specific or non-common CP function node, which is not shared with other slice instances. The method may include a step of transferring the access request message to the selected CP function node.

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：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.