公开(公告)号：US10973069B2

公开(公告)日：2021-04-06

申请号：US16635933

申请日：2018-08-07

Applicant: LG Electronics Inc.

Inventor： Bokyung Byun ,  Youngdae Lee ,  Jaewook Lee

IPC: H04W76/15 ,  H04W76/27

Abstract: Provided are a method for keeping, by a user equipment (UE), a first dual connectivity (DC) configuration in a wireless communication system. The method may include: receiving information for validation of a DC configuration, from a network, wherein the DC configuration includes the first DC configuration and a second DC configuration; determining whether or not the first DC configuration is valid in a radio resource control (RRC) resume procedure, based on the information for validation of DC configuration; if the first DC configuration is valid, keeping the first DC configuration in an RRC resume procedure; and releasing the second DC configuration before initiating the RRC resume procedure.

公开(公告)号：US10952107B2

公开(公告)日：2021-03-16

申请号：US16338029

申请日：2017-09-27

Applicant: LG Electronics Inc.

Inventor： Youngdae Lee ,  Bokyung Byun ,  Sangwook Han

IPC: H04W56/00 ,  H04W36/00 ,  H04W76/19 ,  H04W76/27 ,  H04W36/08

Abstract: Provided is a method for a terminal performing an RRC connection reestablishment process in a wireless communication system. The method comprises the steps of: the terminal moving from a first base station to a second base station; transmitting, to the second base station, an RRC connection reestablishment request message; receiving, from the second base station, an RRC connection reestablishment message, wherein the RRC connection reestablishment message includes a state conversion indicator indicating an RRC state into which the terminal should enter; and entering the RRC state corresponding to the state conversion indicator.

公开(公告)号：US10945185B2

公开(公告)日：2021-03-09

申请号：US16509211

申请日：2019-07-11

Applicant: LG Electronics Inc.

Inventor： Jongwoo Hong ,  Taehun Kim ,  Daewook Byun ,  Bokyung Byun

IPC: H04W36/30 ,  H04W76/19 ,  H04W24/04 ,  H04W36/00 ,  H04B17/327 ,  H04W36/08 ,  H04W74/08

Abstract: A method and apparatus for supporting a fast link recovery and link status reporting in a wireless communication system is provided. When a node detects a radio link problem on a wireless backhaul link between integrated access and backhaul (IAB) nodes from the node to a donor node of an TAB network, the node reselects a cell operated by a gNB which is directly connected to the donor node, and performs a random access procedure towards the cell operated by the gNB to report information on the radio link problem to the cell. The donor node may establish a new path for the node.

公开(公告)号：US20200351723A1

公开(公告)日：2020-11-05

申请号：US16763545

申请日：2018-11-13

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung KIM ,  Bokyung Byun ,  Jian Xu ,  Daewook BYUN

IPC: H04W36/00 ,  H04L1/16 ,  H04W76/27 ,  H04W36/08 ,  H04W68/00

Abstract: Provided are a method of managing UE context and a device supporting the method. According to one embodiment of the present invention, a method for managing UE context in a wireless communication system includes: receiving a UE context request message including a radio resource control (RRC) establishment cause from a second BS, wherein the first BS and the second BS are located in a same radio access network (RAN)-based notification area (RNA); and when the RRC establishment cause is related to RNA update, transmitting a UE context response message to the second BS, wherein the UE context response message piggybacks a RRC message requesting a UE to move to a RRC inactive state.

公开(公告)号：US20200015074A1

公开(公告)日：2020-01-09

申请号：US16502493

申请日：2019-07-03

Applicant: LG Electronics Inc.

Inventor： Taehun Kim ,  Bokyung Byun

IPC: H04W12/00 ,  H04W76/27

Abstract: A method and apparatus for supporting security in a radio resource control (RRC) inactive state in a wireless communication system is provided. A user equipment (UE) receives information on multiple security variables, of which each variable is mapped to each of multiple counter values, respectively. The UE calculates a security parameter and/or updating a UE identifier (ID) based on a security variable among the security variables which is mapped to a corresponding counter value among the multiple counter values, and transmits a radio resource control (RRC) resume request message including the calculated security parameter and/or the updated UE ID. The counter value may be increase whenever a timer expires or an RRC reject message is received as a response to the RRC resume request message