公开(公告)号：US11172392B2

公开(公告)日：2021-11-09

申请号：US16641507

申请日：2018-10-08

Applicant: LG Electronics Inc.

Inventor： Jaewook Lee ,  Hongsuk Kim ,  Youngdae Lee

IPC: H04W76/19 ,  H04W24/10 ,  H04W24/08

Abstract: Provided is a method for declaring a radio link failure (RLF) by a radio resource control (RRC) layer of a user equipment (UE). The method may include: receiving information on failure of beam recovery, from a lower layer of the UE; receiving at least one out-of-sync (OOS) signal, from the lower layer of the UE; and when a number of OOS signals which is received after receiving the information on failure of beam recovery satisfies a threshold value, declaring the RLF.

公开(公告)号：US10805822B2

公开(公告)日：2020-10-13

申请号：US16414552

申请日：2019-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Hongsuk Kim ,  Youngdae Lee ,  Yejee Lee

IPC: H04W24/10 ,  H04W36/00

Abstract: A method and apparatus for supporting a measurement reporting enhancement for an aerial device in a wireless communication system is provided. A prohibit timer can be used in order to prohibit frequent measurement reporting, and the prohibit timer may be stopped when a leaving condition for the measurement reporting is satisfied and/or a handover procedure and/or a radio resource control (RRC) connection re-establishment procedure is performed.

公开(公告)号：US10721654B2

公开(公告)日：2020-07-21

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：US10542448B2

公开(公告)日：2020-01-21

申请号：US16376935

申请日：2019-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Yejee Lee ,  Hongsuk Kim ,  Youngdae Lee

IPC: H04B17/00 ,  H04W24/00 ,  H04W24/10 ,  H04B17/327 ,  H04W88/02

Abstract: Provided are a method of measurement reporting and a device supporting the method. According to one embodiment of the present invention, the method includes: receiving a configuration of condition for measurement report; starting a first timer related to a first cell, when a report triggering event for the first cell is occurred; detecting a triggering event for a second cell and that the condition is satisfied; and reporting measurement results of the first cell and the second cell, when the first timer is expired or stopped.

公开(公告)号：US20180278357A1

公开(公告)日：2018-09-27

申请号：US15933077

申请日：2018-03-22

Applicant: LG ELECTRONICS INC.

Inventor： Hongsuk Kim ,  Sangwon Kim ,  Youngdae Lee ,  Jaewook Lee

IPC: H04J11/00 ,  H04W76/27

CPC classification number: H04J11/0076 ,  H04J11/0083 ,  H04W72/042 ,  H04W76/15 ,  H04W76/19 ,  H04W76/27

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for performing SCG re-establishment in dual connectivity in wireless communication system, the method comprising: detecting radio link failure on a secondary node, wherein the UE is configured with a master node and the secondary node; and receiving signals from candidates of a new secondary node for obtaining information about which cell is a best candidate on the new secondary node to prepare for radio link failure on the secondary node; and initiating RRC connection re-establishment procedure for recovery from the radio link failure of the secondary node if a cell which is to be a PSCell on a new secondary node is selected in a cell list.

公开(公告)号：US12267749B2

公开(公告)日：2025-04-01

申请号：US17621397

申请日：2021-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Hongsuk Kim ,  Sunghoon Jung

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

Abstract: The present disclosure relates to a mobility handling in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: receiving, from a network, a conditional mobility command for a target cell including a mobility condition, and a legacy mobility command; initiating a legacy mobility procedure upon receiving the legacy mobility command; and stopping an evaluation of the mobility condition during the legacy mobility procedure after the legacy mobility procedure is initiated.

公开(公告)号：US12225418B2

公开(公告)日：2025-02-11

申请号：US17414599

申请日：2019-12-27

Applicant: LG Electronics Inc.

Inventor： Hongsuk Kim ,  Sunyoung Lee ,  Youngdae Lee ,  Yejee Lee

IPC: H04W36/00 ,  H04W76/27

Abstract: The present disclosure relates to mobility management wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: receiving, from a source cell, a handover command comprising a handover validity timer; performing a handover attempt to a target cell while the handover validity timer is running; and transmitting, to the source cell, a report message comprising cell information including target cell information for the target cell upon an expiration of the handover validity timer.

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：US12052617B2

公开(公告)日：2024-07-30

申请号：US17609199

申请日：2020-05-15

Applicant: LG ELECTRONICS INC.

Inventor： Hongsuk Kim ,  Sunghoon Jung

IPC: H04W76/19 ,  H04W36/00 ,  H04W36/30 ,  H04W36/32 ,  H04W36/36

CPC classification number: H04W36/00837 ,  H04W36/0058 ,  H04W36/305 ,  H04W36/32 ,  H04W36/362 ,  H04W76/19

Abstract: The present disclosure relates to handling a connection re-establishment in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: receiving a conditional mobility command; initiating a conditional mobility based on the conditional mobility command; performing a radio link monitoring (RLM) on a source cell during the conditional mobility; and performing a radio resource control (RRC) re-establishment based on that the conditional mobility fails and a radio link failure (RLF) occurs as a result of the RLM.

公开(公告)号：US11985565B2

公开(公告)日：2024-05-14

申请号：US17414492

申请日：2020-01-16

Applicant: LG Electronics Inc.

Inventor： Hongsuk Kim ,  Youngdae Lee ,  Taehun Kim

IPC: H04W36/32 ,  H04W24/08 ,  H04W36/00

CPC classification number: H04W36/32 ,  H04W24/08 ,  H04W36/0058

Abstract: The present disclosure relates to mobility management in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system comprises: receiving mobility commands of candidate cells, mobility conditions for the candidate cells, and information for a timer; determining a first target cell among the candidate cells which satisfies a mobility condition for the first target cell; after determining the first target cell, determining a second target cell among the candidate cells which satisfies a mobility condition for the second target cell while the timer is running, wherein a priority of the second target cell is higher than a priority of the first target cell; and performing a mobility to the second target cell based on a mobility command of the second target cell.