公开(公告)号：US12075482B2

公开(公告)日：2024-08-27

申请号：US17425170

申请日：2020-01-31

Applicant: LG ELECTRONICS INC.

Inventor： Daewook Byun ,  Hongsuk Kim ,  Jian Xu ,  Seokjung Kim

IPC: H04W74/00 ,  H04W74/0833

CPC classification number: H04W74/0833 ,  H04W74/002

Abstract: A method and apparatus for provision of random access channel (RACH) related information for connection failure detection in a new radio access technology (NR) is provided. For example, a first gNB receives, from a wireless device, random access channel (RACH) related information and cell information for a radio link failure (RLF), and transmits, to a second gNB, the RACH related information and the cell information for the RLF. For another example, a gNB central unit (gNB-CU) of a first gNB receives, from a second gNB, RACH related information and cell information for RLF, and transmits, to a gNB distributed unit (gNB-DU) of the first gNB, information for an RACH configuration based on the RACH related information and the cell information for the RLF.

公开(公告)号：US12041493B2

公开(公告)日：2024-07-16

申请号：US17278949

申请日：2019-11-08

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung Kim ,  Jian Xu ,  Daewook Byun

IPC: H04W36/00 ,  H04L5/00 ,  H04W36/08

CPC classification number: H04W36/0069 ,  H04L5/0053 ,  H04W36/0061 ,  H04W36/08

Abstract: A method and apparatus for supporting of inter-gNB handover in higher layer multi-connectivity is provided. A target master node (MN) of an inter-MN handover procedure receives a handover request message including information on a redundancy sequence number (RSN) from a source MN of the inter-MN handover procedure. The information on the RSN informs that a protocol data unit (PDU) session mapped to the RSN is allocated to a secondary node (SN) of the inter-MN handover procedure for redundant transmission.

公开(公告)号：US12015996B2

公开(公告)日：2024-06-18

申请号：US17414422

申请日：2020-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Jian Xu ,  Daewook Byun ,  Seokjung Kim

IPC: H04W72/02 ,  H04W72/23 ,  H04W92/18

CPC classification number: H04W72/02 ,  H04W72/23 ,  H04W92/18

Abstract: A method and apparatus for sidelink resource handling for central unit (CU)-distributed unit (DU) split based vehicle-to-everything (V2X) communication is provided. A gNB central unit (gNB-CU) in a wireless communication system receives, from a wireless device, information related to a radio access technology (RAT) for which a sidelink resource is requested. The gNB-CU transmits, to a gNB distributed unit (gNB-DU), the information related to the RAT for sidelink resource allocation.

公开(公告)号：US11968696B2

公开(公告)日：2024-04-23

申请号：US17276037

申请日：2019-10-07

Applicant: LG Electronics Inc.

Inventor： Jian Xu ,  Daewook Byun ,  Seokjung Kim

IPC: H04W72/51 ,  H04W4/40

CPC classification number: H04W72/51 ,  H04W4/40

Abstract: A method and apparatus for resource handling for new radio (NR) vehicle-to-everything (V2X) based on split of central unit (CU) and distributed unit (DU) is provided. A dedicated signaling based resource allocation and a broadcast signaling based resource allocation can be provided. A gNB-CU and/or gNB-DU allocates a V2X resource based on a type of the wireless device.

公开(公告)号：US11792892B2

公开(公告)日：2023-10-17

申请号：US17512228

申请日：2021-10-27

Applicant: LG Electronics Inc.

Inventor： Jian Xu ,  Daewook Byun ,  Seokjung Kim

IPC: H04W92/20 ,  H04W76/15 ,  H04W76/14 ,  H04W76/11

CPC classification number: H04W92/20 ,  H04W76/11 ,  H04W76/14 ,  H04W76/15

Abstract: Provided is a method for supporting E-UTRAN-NR dual connectivity (EN-DC) indicating dual connectivity between Long-Term Evolution (LTE), that is, Evolved UMTS Terrestrial Radio Access Network (E-UTRAN), and New Radio (NR) Access Technology (NR) in a wireless communication system. A first radio access network (RAN) node transmits an X2 configuration request message, including a first indication indicating that the first RAN node supports EN-DC, to a second RAN node, and receives an X2 configuration response message, including a second indication indicating that the second RAN node supports the EN-DC, from the second RAN node.

公开(公告)号：US20230076769A1

公开(公告)日：2023-03-09

申请号：US17794530

申请日：2020-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Daewook Byun ,  Sunghoon Jung ,  Jian Xu ,  Seokjung Kim

IPC: H04W76/10 ,  H04W4/06 ,  H04L1/18

Abstract: A method and apparatus for switching between unicast and multicast in a wireless communication system is provided. A DU of a RAN node provides the MBS by using a first transmission to the wireless device. A DU of a RAN node receives, from the wireless device, feedback information in response to the provided MBS. A DU of a RAN node transmits, to a central unit (CU) of the RAN node, a first switching message based on the received feedback information. A DU of a RAN node receives, from the CU, a second switching message to switch the first transmission to the second transmission for the MBS. A DU of a RAN node provides the MBS by using the second transmission to the wireless device.

公开(公告)号：US20230071268A1

公开(公告)日：2023-03-09

申请号：US17797414

申请日：2021-02-08

Applicant: LG ELECTRONICS INC.

Inventor： Jian Xu ,  Jongwoo Hong ,  Daewook Byun ,  Seokjung Kim

IPC: H04W36/00 ,  H04W74/08 ,  H04W36/36

Abstract: The present disclosure relates to handling mobility in dual connectivity in wireless communication system. According to various embodiments, a method performed by a target secondary node (SN) for a primary secondary cell (PSCell) mobility of a wireless device from a source SN in a wireless communication system comprises: receiving, from a master node (MN), a message for informing a trigger of the PSCell mobility; obtaining inactivity status information informing that the wireless device is in an inactive state; and releasing or suspending lower layers for a communication with the wireless device based on the inactivity status information after the PSCell mobility of the wireless device to the target SN is completed, wherein the lower layers comprises at least one of a physical (PHY) layer, a media access control (MAC) layer, or a radio link control (RLC) layer.

公开(公告)号：US20230067158A1

公开(公告)日：2023-03-02

申请号：US17797596

申请日：2021-01-14

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung Kim ,  Jian Xu ,  Daewook Byun

IPC: H04W76/27 ,  H04W76/16 ,  H04W28/06

Abstract: A method and apparatus for small data transmission in RRC inactive state in MR-DC is provided. A MN, in a DC for a wireless device, transmits, to the wireless device, a paging message including an indication related to an EDT procedure for the SN. A MN receives, from the wireless device, an AS-RAI related to the EDT procedure for SN. A MN decides whether to continue the EDT procedure to the wireless device for the DL data or to transit the wireless device to the RRC-CONNECTED state based on the received AS-RAI.

公开(公告)号：US11553385B2

公开(公告)日：2023-01-10

申请号：US17072808

申请日：2020-10-16

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung Kim ,  Jian Xu ,  Daewook Byun

IPC: H04W36/08 ,  H04W76/27 ,  H04W76/22 ,  H04W88/16 ,  H04W68/02 ,  H04W88/08 ,  H04W48/20 ,  H04W76/19 ,  H04W92/20

Abstract: Provided are a data transmission method performed by a base station in a wireless communication system, and an apparatus using the method. The base station transmits a message requesting information for data transmission to a second base station and receives, from the second base station, a response message to the message requesting the information for data transmission, wherein the information for data transmission is to transmit data on a terminal in a light connection state.

公开(公告)号：US11375436B2

公开(公告)日：2022-06-28

申请号：US16711163

申请日：2019-12-11

Applicant: LG Electronics Inc.

Inventor： Daewook Byun ,  Jian Xu ,  Sangwon Kim ,  Seokjung Kim ,  Jaewook Lee

IPC: H04W48/10 ,  H04W74/08 ,  H04W72/04 ,  H04W88/08 ,  H04W48/14

Abstract: Provided are a method for a distributed unit (DU) of a base station (BS) to broadcast system information in a wireless communication system, and a device supporting the same. The method may include: receiving system information owned by a central unit (CU) of the BS from the CU of the BS; receiving a request for the system information from a user equipment (UE); receiving a message of a command to broadcast the system information from the CU of the BS; and broadcasting the requested system information.