公开(公告)号：US20210235337A1

公开(公告)日：2021-07-29

申请号：US17053305

申请日：2019-06-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W36/00 ,  H04W36/30 ,  H04W76/19

Abstract: A method and apparatus for providing beam related information for connection failure detection in a wireless communication system is provided. In case that radio link failure (RLF) occurs due to too late handover, too early handover or handover to wrong cell, a gNB in which a user equipment (UE) attempts to re-establish or establish a radio resource control (RRC) connection provides RLF related information with beam related information to a gNB at which RLF happened.

公开(公告)号：US20200383164A1

公开(公告)日：2020-12-03

申请号：US16635463

申请日：2018-07-30

Applicant: LG Electronics Inc.

Inventor： Seokjung KIM ,  Daewook BYUN ,  Jian XU

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

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：US20200322847A1

公开(公告)日：2020-10-08

申请号：US16908513

申请日：2020-06-22

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：US20200178208A1

公开(公告)日：2020-06-04

申请号：US16634515

申请日：2018-08-06

Applicant: LG Electronics Inc.

Inventor： Seokjung KIM ,  Jian XU ,  Daewook BYUN

IPC: H04W68/02 ,  H04W76/15 ,  H04W76/27

Abstract: Provided are a method of performing a RAN based paging a device supporting the method. According to one embodiment of the present disclosure, a method for performing a RAN based paging in a wireless communication system includes: receiving a message, which includes paging related information and information indicating that a user equipment (UE) enters a radio resource control (RRC) inactive state, from a master node (MN); receiving a downlink (DL) data from a core network; and performing the RAN based paging for the UE by using the paging related information.

公开(公告)号：US20200100102A1

公开(公告)日：2020-03-26

申请号：US16064715

申请日：2018-06-18

Applicant: LG Electronics Inc.

Inventor： Jian XU ,  Daewook BYUN ,  Seokjung KIM

IPC: H04W12/00 ,  H04L9/08 ,  H04L9/16 ,  H04W12/04 ,  H04W80/08

Abstract: Provided are a method and an apparatus for supporting security of user traffic when a central unit (CU)-control plane (CP) and a CU-user plane (UP) of a gNB are separated in a wireless communication system. According to an embodiment of the present invention, the CU-CP of the gNB selects an encryption algorithm, generates a user plane security key for the CU-UP on the basis of the encryption algorithm, and transmits the user plane security key for the CU-UP to the CU-CP. The CU-UP applies the received user plane security key. The CU-CP is a logical node constituting the gNB that hosts a radio resource control (RRC) and a packet data convergence protocol (PDCP)-C protocol, and the CU-UP is a logical node constituting the gNB that hosts a PDCP-U protocol.

公开(公告)号：US20190253936A1

公开(公告)日：2019-08-15

申请号：US16395936

申请日：2019-04-26

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Daewook BYUN

IPC: H04W36/00 ,  H04W36/08

CPC classification number: H04W36/0016 ,  H04W36/0055 ,  H04W36/0069 ,  H04W36/08 ,  H04W76/16 ,  H04W84/12 ,  H04W88/06

Abstract: As one aspect of mobility enhancement of 3rd generation partnership project (3GPP) long-term evolution (LTE)-wireless local area network (WLAN) aggregation, inter-eNodeB (eNB) handover without WLAN termination (WT) change is considered. A source eNB transmits a handover request message including a WT identifier (ID) and WT XwAP ID to a target eNB. The target eNB transmits a WT addition request message including the WT XwAP ID to a WT, and receives a WT addition request acknowledge message from the WT. The target eNB transmits a handover request acknowledge message indicating that a WT is kept to the source eNB. The source eNB transmits a WT release request message indicating that the WT is kept to the WT. The WT is a logical node that terminates a Xw interface on a WLAN.

公开(公告)号：US20190208435A1

公开(公告)日：2019-07-04

申请号：US16295674

申请日：2019-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Kyungmin PARK ,  Insun LEE ,  Daewook BYUN ,  Jian XU

IPC: H04W24/08 ,  H04W16/24

CPC classification number: H04W24/08 ,  H04W16/24 ,  H04W88/08 ,  H04W92/20

Abstract: A method for transmitting, by a first base station, coverage modification information in a wireless communication system is discussed. The method includes transmitting, by the first base station, the coverage modification information which informs a second base station that modifying a cell managed by the first base station is planned, to the second base station, and after the first base station transmits the coverage modification information to the second base station, modifying, by the first base station, the cell managed by the first base station.

公开(公告)号：US20190190662A1

公开(公告)日：2019-06-20

申请号：US16300024

申请日：2017-05-11

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae LEE ,  Jian XU ,  Hanbyul SEO ,  Laeyoung KIM ,  Jonghyun PARK

IPC: H04L1/18 ,  H04W76/11 ,  H04W4/46 ,  H04L29/12 ,  H04W4/06 ,  H04W72/04

CPC classification number: H04L1/1819 ,  H04L1/18 ,  H04L1/188 ,  H04L61/2069 ,  H04W4/06 ,  H04W4/46 ,  H04W72/0406 ,  H04W76/11

Abstract: Uplink (UL) feedback-based hybrid automatic repeat request (HARQ) retransmission may be proposed as an example for improving downlink (DL) broadcast for vehicle-to-everything (V2X) communication, especially for V2V (vehicle-to-vehicle) communication. An eNodeB (eNB) receives, from a neighboring eNB, an HARQ feedback transmitted by a user equipment (UE), and determines whether an HARQ is to be re-transmitted on the basis of the received HARQ feedback.

公开(公告)号：US20190045408A1

公开(公告)日：2019-02-07

申请号：US16064695

申请日：2017-04-28

Applicant: LG Electronics Inc.

Inventor： Seokjung KIM ,  Jian XU ,  Daewook BYUN

IPC: H04W36/08 ,  H04W76/27

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：US20190021023A1

公开(公告)日：2019-01-17

申请号：US16065615

申请日：2016-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Daewook BYUN ,  Jinsook RYU ,  Taehun KIM ,  Jian XU ,  Seokjung KIM

IPC: H04W28/02 ,  H04W76/27 ,  H04W60/04 ,  H04W4/70

Abstract: Provided are a method for establishing a bearer for the transmission of user data in a user plane based cellular Internet of Things (CIoT) in a wireless communication system, and a device supporting the same. A base station receives a tracking area update (TAU) request message from a terminal, transmits, to a mobility management entity (MME), an initial UE message including the TAU request message, receives, from the MME, a downlink NAS transport message including a resume indication, and can transmit, to the MME, a UE context resume request message on the basis of the resume indication.