公开(公告)号：US11184791B2

公开(公告)日：2021-11-23

申请号：US16495247

申请日：2018-03-21

Applicant: LG Electronics Inc.

Inventor： Seokjung Kim ,  Jian Xu ,  Daewook Byun

IPC: H04W28/02 ,  H04W76/34 ,  H04W76/27 ,  H04W48/04

Abstract: Provided are a method by which a base station controls the access of a terminal, and a device for supporting the same. The method comprises the steps of: receiving, from a core network, information on an RRC connection procedure in which access in an RRC inactive state is restricted; receiving a request for executing the RRC connection procedure from a terminal which is in the RRC inactive state; and transmitting, to the terminal, a message notifying that the requested execution of the RRC connection procedure has been restricted, when the RRC connection procedure requested from the terminal corresponds to the RRC connection procedure in which the access is restricted.

公开(公告)号：US20210250788A1

公开(公告)日：2021-08-12

申请号：US16981420

申请日：2020-06-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/04 ,  H04W76/11 ,  H04W76/15 ,  H04W60/04

Abstract: One disclosure of the present specification provides a method for supporting redundant protocol data unit (PDU) sessions. The method may be performed by a unified data management (UDM) node and comprise: receiving, from a first session management function (SMF) node, a first message including a first redundancy sequence number (RSN) which is allocated by the first SMF node for managing a first PDU session and an identifier of the first PDU session; transmitting, to a second SMF node for managing a second PDU session, a second message including the first RSN and a PDU session pair ID, which is identical to the identifier of the first PDU session; and receiving, from the second SMF node, a third message including a second RSN which is allocated by the second SMF node and an identifier of the second PDU session. The second PDU session may be duplication of the first PDU session.

公开(公告)号：US20200304982A1

公开(公告)日：2020-09-24

申请号：US16892844

申请日：2020-06-04

Applicant: LG Electronics Inc.

Inventor： Jian Xu ,  Seokjung Kim ,  Daewook Byun

IPC: H04W8/08 ,  H04W36/00 ,  H04W48/10 ,  H04W48/16 ,  H04W60/00

Abstract: A new cell specification procedure can be defined, in order to support more efficiently a network slice function in a new radio (NR) access technology as being a part of a 5G communication system. From a perspective of a radio access network (RAN)-core network (CN) interface, a RAN node can transmit, to a CN node, a first indicator related to the slice support of the RAN node, and receive, from the CN node, a second indicator related to the slice support of the CN node.

公开(公告)号：US10708757B2

公开(公告)日：2020-07-07

申请号：US16064943

申请日：2017-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Jian Xu ,  Seokjung Kim ,  Daewook Byun

IPC: H04W8/08 ,  H04W36/00 ,  H04W48/10 ,  H04W48/16 ,  H04W60/00 ,  H04W92/04

Abstract: A new cell specification procedure can be defined, in order to support more efficiently a network slice function in a new radio (NR) access technology as being a part of a 5G communication system. From a perspective of a radio access network (RAN)-core network (CN) interface, a RAN node can transmit, to a CN node, a first indicator related to the slice support of the RAN node, and receive, from the CN node, a second indicator related to the slice support of the CN node.

公开(公告)号：US10687202B2

公开(公告)日：2020-06-16

申请号：US16083001

申请日：2017-03-06

Applicant: LG ELECTRONICS INC.

Inventor： Daewook Byun ,  Taehun Kim ,  Jian Xu ,  Jinsook Ryu ,  Seokjung Kim

IPC: H04W8/08 ,  H04W76/20 ,  H04W28/02 ,  H04W76/30 ,  H04W76/27 ,  H04W28/12 ,  H04W88/08 ,  H04W4/70

Abstract: Provided are a method, for configuring a bearer for transmission of user data in user plane-based cellular Internet of Things (CIoT) by a base station in a wireless communication system, and a device for supporting same. The base station can: receive a tracking area update (TAU) request message from a terminal; transmit to a mobility management entity (MME) a UE context resume request message comprising the TAU request message; receive from the MME a UE context resume failure message comprising a cause value; and determine whether or not a temporarily stopped UE context is to be remained on the basis of the cause value.

公开(公告)号：US10512030B2

公开(公告)日：2019-12-17

申请号：US16048848

申请日：2018-07-30

Applicant: LG Electronics Inc.

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

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

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.

公开(公告)号：US12207333B2

公开(公告)日：2025-01-21

申请号：US17619021

申请日：2020-01-16

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung Kim ,  Hyunjung Choe ,  Jian Xu ,  Daewook Byun

IPC: H04W76/19 ,  H04W12/0471 ,  H04W76/30

Abstract: A method and apparatus for handling security information between a wireless device and a network for a fast RRC release procedure in a wireless communication system will be provided. A core network node in a wireless communication system receives, from a radio access network (RAN) node, a UE context resume request message including a fast Radio Resource Control (RRC) release indication. The fast RRC release indication informs that the RAN node transmits an RRC release message to a wireless device before the core network node receives the UE context resume request message. A core network node determines to stop computation of new security information for the wireless device based on the fast RRC release indication. A core network node transmits a UE context resume response message to the RAN node.

公开(公告)号：US12160731B2

公开(公告)日：2024-12-03

申请号：US17622034

申请日：2020-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung Kim ,  Jian Xu ,  Daewook Byun

IPC: H04W12/33 ,  H04W12/033 ,  H04W12/106 ,  H04W76/10 ,  H04W88/08

Abstract: A method and apparatus supporting UP security for MO-EDT in CU-DU split in a wireless communication system. A central unit (CU) receives, from a distributed unit (DU), a first message including a PDCP Data PDU, wherein the PDCP Data PDU is configured by a wireless device. A CU calculates a HASHDATA from the PDCP Data PDU. A CU verifies a Short MAC-I of the wireless device based on the HASHDATA. A CU transmits, to the DU, a second message to setup a UE context for the wireless device in the DU based on the verification.

公开(公告)号：US12127115B2

公开(公告)日：2024-10-22

申请号：US17620479

申请日：2020-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Daewook Byun ,  Jian Xu ,  Seokjung Kim

IPC: H04W52/02 ,  H04W48/18 ,  H04W88/02 ,  H04W88/14

CPC classification number: H04W52/0206 ,  H04W48/18 ,  H04W88/14

Abstract: A method and apparatus for saving energy for a Distributed Unit in a wireless communication system is provided. A CU establishes a connection between a Distributed Unit (DU). The CU receives, from the DU, a first message including deactivation request for the DU. The CU determines whether to permit deactivation of the DU or not. The CU transmits, to the DU, a second message in response to the first message, wherein the second message includes information informing that the deactivation request for the DU is accepted or not based on the determination.

公开(公告)号：US12010577B2

公开(公告)日：2024-06-11

申请号：US17422012

申请日：2020-02-10

Applicant: LG ELECTRONICS INC.

Inventor： Daewook Byun ,  Heejeong Cho ,  Jian Xu ,  Seokjung Kim

IPC: H04W36/08 ,  H04W68/00 ,  H04W88/14

CPC classification number: H04W36/08 ,  H04W68/005 ,  H04W88/14

Abstract: A method and apparatus for lossless uplink data transmission of IAB network in a wireless communication system will be provided. A user plane (UP) of an integrated access and backhaul (IAB)-donor central unit (CU) in a wireless communication system receives, from a wireless device, uplink data through a source IAB-node. A UP of an IAB-donor CU receives, from the source IAB-node, at least one of a delivery status of the uplink data on the source IAB-node, wherein the wireless device handovers from the source IAB-node to a target IAB-node. A UP of an IAB-donor CU transmits, to a unit-control plane (CP) of the IAB-donor CU, a first message based on the at least one of the delivery status of the uplink data.