公开(公告)号：US20240381199A1

公开(公告)日：2024-11-14

申请号：US18255670

申请日：2021-12-22

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Daewook BYUN ,  Seokjung KIM

IPC: H04W36/00 ,  H04W4/02 ,  H04W4/40 ,  H04W24/02

Abstract: A method and apparatus for performing handover based on AI model in a wireless communication system is provided. The source node acquire a mobility information for a specific UE. The source node transmits, to the specific UE, a measurement configuration including a request for a location information. The source node receives, from the specific UE, the location information. The source node determine a target RAN node for the specific UE by using an AI model, based on the mobility information and the location information. The source node performs a handover procedure for the specific UE with the determined target RAN node.

公开(公告)号：US20230292219A1

公开(公告)日：2023-09-14

申请号：US18009876

申请日：2021-07-14

Applicant: LG Electronics Inc.

Inventor： Daewook BYUN ,  Jian XU ,  Seokjung KIM

IPC: H04W40/24 ,  H04W76/40

CPC classification number: H04W40/248 ,  H04W40/246 ,  H04W76/40

Abstract: A method and apparatus for multicast and broadcast service in a wireless communication system is provided. A CU-UP of a RAN node receives, from a CU-CP of the RAN node, a first message to join a multicast group for a MB service. A CU-UP of a RAN node performs the MLD and/or IGMP Join procedure for the MB service indicated by the identity for the MB service along with an MB-UPF based on the LL MC address. A CU-UP of a RAN node transmits, to the CU-CP of the RAN node, a second message including a Join Complete Indication informing that joining the multicast group for the MB service is completed.

公开(公告)号：US20230103163A1

公开(公告)日：2023-03-30

申请号：US17796359

申请日：2021-01-29

Applicant: LG Electronics Inc.

Inventor： Jian XU ,  Daewook BYUN ,  Seokjung KIM

IPC: H04W36/00

Abstract: A method performed by a master node (MN) serving a wireless device with a secondary node (SN) in dual connectivity (DC) in a wireless communication system, the method including: transmitting, to the wireless device, a conditional primary serving cell (PSCell) mobility command for a first cell in the SN; transmitting, to the SN, a message requesting a modification of the conditional PSCell mobility command for the first cell, the message including an identity (ID) of the wireless device, a target cell ID of the first cell for which the conditional PSCell mobility is to be modified, and an indication to modify the conditional PSCell mobility command for the first cell; receiving, from the SN, an acknowledgement (ACK) message for modification of the conditional PSCell mobility command for the first cell; and transmitting, to the wireless device, information related to modification of the conditional PSCell mobility command for the first cell.

公开(公告)号：US20230079242A1

公开(公告)日：2023-03-16

申请号：US17797693

申请日：2021-02-08

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Jongwoo HONG ,  Daewook BYUN ,  Seokjung KIM

IPC: H04W36/00

Abstract: The present disclosure relates to inactivity handling in mobility in wireless communication system. According to various embodiments, a method performed by a master node (MN) serving a wireless device with a secondary node (SN) in a wireless communication system comprises: receiving, from the SN, criterion information for triggering a primary secondary cell (PSCell) mobility; transmitting, to the wireless device, a configuration for the PSCell mobility comprising the criterion information; receiving, from the wireless device, state indication information informing that the wireless device is in an inactive state after the PSCell mobility is completed based on the configuration; and transmitting, to the SN, the state indication information received from the wireless device.

公开(公告)号：US20230072861A1

公开(公告)日：2023-03-09

申请号：US17797850

申请日：2021-02-04

Applicant: LG ELECTRONICS INC.

Inventor： Daewook BYUN ,  Jian XU ,  Seokjung KIM

IPC: H04W76/40 ,  H04L1/08

Abstract: A method and apparatus for switching of multicast and broadcast service between multicast and unicast in a wireless communication system is described. A CU-CP establishes a connection with a wireless device for a Multicast and/or Broadcast Service (MBS). A CU-CP receives, from the CU-UP, a first message including a retransmission information on data transmission related to the MBS. A CU-CP determines whether to perform a switch of the first transmission to a second transmission for the MBS based on the retransmission information.

公开(公告)号：US20210345150A1

公开(公告)日：2021-11-04

申请号：US17376957

申请日：2021-07-15

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Sangwon KIM ,  Daewook BYUN ,  Seokjung KIM

IPC: H04W24/10

Abstract: Provided is a method in which a secondary node (SN) transmits a measurement configuration by multi radio access technology (RAT) dual connectivity. The SN receives, from a master node (MN), measurement configuration information related to a measurement configuration of the SN, transmits, to user equipment (UE), the measurement configuration on the basis of the measurement configuration information, and receives a measurement report on the basis of the measurement configuration from the UE.

公开(公告)号：US20210160949A1

公开(公告)日：2021-05-27

申请号：US17256992

申请日：2019-08-16

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung KIM ,  Daewook BYUN ,  Jian XU

IPC: H04W76/19 ,  H04W76/11 ,  H04W76/27

Abstract: A method and apparatus for supporting an early data transmission (EDT) in a radio resource control (RRC) inactive state is provided. The current gNB receives a resume request message including uplink (UL) data from the wireless device, and transmits a logical channel identifier (LCID) for the UL data to the last serving gNB. The last serving gNB transmits UL forwarding user plane (UP) transport network layer (TNL) information to the current gNB based on mapping between the LCID for the UL data and data radio bearer (DRB) ID or protocol data unit (PDU) session ID in a UE context stored in the last serving gNB. The current gNB forwards the UL data to a core network via the last serving gNB based on the UL forwarding UP TNL information.

公开(公告)号：US20210144793A1

公开(公告)日：2021-05-13

申请号：US17156303

申请日：2021-01-22

Applicant: LG Electronics Inc.

Inventor： Seokjung KIM ,  Daewook BYUN ,  Jian XU

IPC: H04W76/19 ,  H04W76/34 ,  H04W76/18 ,  H04W76/27

Abstract: Provided are a method for resuming, by a distribution unit (DU) of a base station, a radio resource control (RRC) connection in a wireless communication system, and an apparatus for supporting the same. The method may comprise the steps of: receiving, from a terminal, an RRC connection resume request message; transmitting, to a central unit (CU) of the base station, an initial uplink (UL) RRC message transfer message including the RRC connection resume request message; receiving, from the CU, a UE context setup request message including a list of radio bearers to be set up; and transmitting, to the CU, the UE context setup response message including a list of established radio bearers.

公开(公告)号：US20200068448A1

公开(公告)日：2020-02-27

申请号：US16552672

申请日：2019-08-27

Applicant: LG Electronics Inc.

Inventor： Daewook BYUN ,  Hongsuk KIM ,  Jian XU ,  Seokjung KIM

IPC: H04W36/00 ,  H04W36/14

Abstract: A method and apparatus for enhancing a handover procedure for supporting conditional handover in a wireless communication system. A source base station (e.g. source gNB/eNB) receives a message informing that a wireless device is handed over from the source base station to a target base station (e.g. target gNB/eNB). The target base station is one of candidate target base stations in the conditional handover procedure. After receiving the message, the source base station transmits a sequence number (SN) status transfer message to the target base station.

公开(公告)号：US20190158360A1

公开(公告)日：2019-05-23

申请号：US16065021

申请日：2017-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Seokjung KIM ,  Daewook BYUN

IPC: H04L12/24 ,  H04W36/08

Abstract: A new cell specific procedure and/or a mobility procedure may be defined to more efficiently support a network slice function in new radio access technology (NR), which is a part of a 5G communication system. In terms of a radio access network (RAN) -RAN interface, the cell specific procedure comprises that a first RAN node transmits a first indicator related with the slice support of the first RAN node to a second RAN node, and receives from the second RAN node a second indicator related with the slice support of the first RAN node. The mobility procedure comprises that a target RAN node transmits a path change request message including slice-related information to a core network (CN) node, and receives from the CN node a path change response message including at least one of a common control plane function (C-CPF) identifier (ID), a finally selected slice-related ID or U-Plane information.