公开(公告)号：US12262253B2

公开(公告)日：2025-03-25

申请号：US17904643

申请日：2021-03-08

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung Kim ,  Myungjune Youn ,  Jian Xu ,  Daewook Byun

IPC: H04W36/00 ,  H04W36/12 ,  H04W36/14 ,  H04W84/04

Abstract: A method and apparatus for support of service continuity between stand-alone non-public network (SNPN) and public land mobile network (PLMN) is provided. A wireless device transmits, to an access and mobility management function (AMF) of a source network, a protocol data unit (PDU) session establishment request to establish a PDU session with the source network via a non-3GPP interworking function (N3IWF) of the source network. The PDU session establishment request includes information informing that data delivery is not available via the PDU session. The wireless device determines to move from the source network to a target network, and transmits, to a user plane function (UPF) of the source network, mobility information informing that the wireless device moves from the source network to the target network.

公开(公告)号：US12238812B2

公开(公告)日：2025-02-25

申请号：US17905271

申请日：2021-03-04

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung Kim ,  Myungjune Youn ,  Jian Xu ,  Daewook Byun

IPC: H04W76/30 ,  H04W36/00 ,  H04W84/04

Abstract: A method and apparatus for support of service continuity for handover between stand-alone non-public network (SNPN) and public land mobile network (PLMN) is provided. A session management function (SMF) of a first network transmits, to a user plane function (UPF) of the first network, a duplication request for the UPF of the first network to duplicate downlink (DL) data and send the duplicated DL data to both a next generation radio access network (NG-RAN) of the first network and a non-3GPP interworking function (N3IWF) of the first network. The SMF of the first network further transmits, to the N3IWF of the first network, a data buffering request for the N3IWF of the first network to buffer the duplicated DL data.

公开(公告)号：US12193119B2

公开(公告)日：2025-01-07

申请号：US18369539

申请日：2023-09-18

Applicant: LG Electronics Inc.

Inventor： Jian Xu ,  Daewook Byun ,  Seokjung Kim

IPC: H04W92/20 ,  H04W36/00 ,  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：US11924701B2

公开(公告)日：2024-03-05

申请号：US17420995

申请日：2020-03-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04W36/08 ,  H04W36/32 ,  H04W52/02

CPC classification number: H04W36/08 ,  H04W36/32 ,  H04W52/0261

Abstract: A method and apparatus for support of energy efficient operation of a wireless device, e.g., a user equipment (UE), in a 5th generation new radio access technology (5G NR) is provided. A source node acquires information related to power consumption of a wireless device and transmits a message for initiation of handover. The message includes information related to energy efficiency of the wireless device. The information related to energy efficiency is based on the information related to power consumption of the wireless device. The target node performs admission control and/or resource allocation for the wireless device based on the information related to energy efficiency of the wireless device.

公开(公告)号：US11457372B2

公开(公告)日：2022-09-27

申请号：US16972196

申请日：2019-07-22

Applicant: LG ELECTRONICS INC.

Inventor： Daewook Byun ,  Jian Xu ,  Seokjung Kim

IPC: H04W24/04 ,  H04W28/02 ,  H04W40/12 ,  H04W88/08 ,  H04W92/20

Abstract: A method and apparatus for supporting a link congestion detection in a in an integrated access and backhaul (IAB) network is provided. An IAB-donor-central unit (CU) performs downlink (DL) transmission, receives information about a problem on a backhaul (BH)-radio link control (RLC) channel between a first IAB-node and a second IAB-node, and stop/reduces the DL transmission to the second IAB-node via the BH-RLC channel between the first IAB-node and the second IAB-node based on the information. The IAB-donor-CU may select a path towards the second IAB-node other than the BH-RLC channel between the first IAB-node and the second IAB-node, and perform DL transmission towards the second IAB-node via the selected path.

公开(公告)号：US11374821B2

公开(公告)日：2022-06-28

申请号：US16939419

申请日：2020-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Jian Xu ,  Seokjung Kim ,  Daewook Byun

IPC: H04L41/12 ,  H04W36/08 ,  H04W92/20 ,  H04W8/02 ,  H04W24/10 ,  H04W84/04

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.

公开(公告)号：US20220124817A1

公开(公告)日：2022-04-21

申请号：US17425170

申请日：2020-01-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W74/00

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：US11038638B2

公开(公告)日：2021-06-15

申请号：US16661077

申请日：2019-10-23

Applicant: LG ELECTRONICS INC.

Inventor： Jian Xu ,  Seokjung Kim ,  Daewook Byun

IPC: H04L5/00 ,  H04W72/04 ,  H04W4/40

Abstract: A method and apparatus for dual connectivity support for vehicle-to-everything (V2X) communication is provided. When a master node (MN) belonging to a first radio access technology takes role of signaling to a wireless device in multi-RAT dual connectivity (MR-DC) option 3/7, the MN receives authorization information on a second RAT for the wireless device from a core network node, and transmits a request for a radio resource of the second RAT to a secondary node (SN) belonging to the second RAT. The request includes the authorization information on the second RAT for the wireless device. Upon receiving information on the radio resource from the SN, the MN transmits a message to the wireless device based on the information on the radio resource.

公开(公告)号：US20210037440A1

公开(公告)日：2021-02-04

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

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：US10904941B2

公开(公告)日：2021-01-26

申请号：US16635463

申请日：2018-07-30

Applicant: LG Electronics Inc.

Inventor： Seokjung Kim ,  Daewook Byun ,  Jian Xu

IPC: H04W72/12 ,  H04W76/19 ,  H04W76/18 ,  H04W76/34 ,  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.