公开(公告)号：US20220304093A1

公开(公告)日：2022-09-22

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 ,  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：US20220279345A1

公开(公告)日：2022-09-01

申请号：US17622034

申请日：2020-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung KIM ,  Jian XU ,  Daewook BYUN

IPC: H04W12/033 ,  H04W76/10 ,  H04W12/106

Abstract: A method and apparatus for supporting UP security for MO-EDT in CU-DU split in a wireless communication system is provided. 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：US20220174563A1

公开(公告)日：2022-06-02

申请号：US17594203

申请日：2020-04-24

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Daewook BYUN ,  Seokjung KIM

IPC: H04W36/00 ,  H04W36/08

Abstract: A method and apparatus for mobility enhancement for a new radio access technology (NR) in a wireless communication system is provided. A target base station receives a handover request message including information related to a conditional handover from a source base station, and transmits a cancel message including information related to a cancel of the conditional handover to the source base station.

公开(公告)号：US20210168667A1

公开(公告)日：2021-06-03

申请号：US17267907

申请日：2019-09-26

Applicant: LG ELECTRONICS INC.

Inventor： Daewook BYUN ,  Heejeong CHO ,  Jian XU ,  Seokjung KIM

IPC: H04W36/00 ,  H04W36/08

Abstract: A method and apparatus for preventing loss of uplink data in wireless communication system is provided. A central unit (CU) of an integrated access and backhaul (IAB)-donor receives, from a wireless device, uplink data through a source IAB-node. The CU of the IAB-donor receives, from the source IAB-node, a message which informs that uplink packets among the uplink data are remained on the source IAB-node, wherein the message is related to handover procedures of the wireless device from the source IAB-node to a target IAB-node. The CU of the IAB-donor proceeds the handover procedures, after receiving the uplink packets.

公开(公告)号：US20200084647A1

公开(公告)日：2020-03-12

申请号：US16686795

申请日：2019-11-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/08 ,  H04W16/24

Abstract: A method for receiving, by a first base station, coverage modification information in a wireless communication system, includes receiving, by the first base station, the coverage modification information which informs the first base station that modifying at least one cell managed by a second base station is planned, from the second base station, wherein the at least one cell managed by the second base station is modified by the second base station, after the second base station transmits the coverage modification information to the first base station.

公开(公告)号：US20190387393A1

公开(公告)日：2019-12-19

申请号：US16064943

申请日：2017-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Seokjung KIM ,  Daewook BYUN

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

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：US20190335527A1

公开(公告)日：2019-10-31

申请号：US16312909

申请日：2017-06-21

Applicant: LG ELECTRONICS INC.

Inventor： Daewook BYUN ,  Jian XU ,  Seokjung KIM

IPC: H04W76/27 ,  H04W24/10 ,  H04W8/08 ,  H04W72/04

Abstract: Proposed are a method for reporting an RRC state of a terminal by a base station in a wireless communication system and an apparatus for supporting the same. A method for reporting an RRC state according to an embodiment of the present invention may comprise a step of reporting an RRC state of a terminal to a mobility management (MM).

公开(公告)号：US20190215798A1

公开(公告)日：2019-07-11

申请号：US16064690

申请日：2017-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Seokjung KIM ,  Jian XU ,  Daewook BYUN

IPC: H04W68/00 ,  H04W76/27 ,  H04L5/00

CPC classification number: H04W68/005 ,  H04L5/0055 ,  H04W68/02 ,  H04W76/27 ,  H04W88/02

Abstract: Disclosed are a method whereby a base station manages a UE context in a wireless communication system, and a device for supporting same. The method comprises the steps of: receiving paging-related information of UE from a core network node; storing the paging-related information; and carrying out paging with respect to the UE on the basis of the paging-related information after the UE has entered an RRC-inactive state.

公开(公告)号：US20190098538A1

公开(公告)日：2019-03-28

申请号：US16183002

申请日：2018-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Daewook BYUN

IPC: H04W36/00 ,  H04W76/34 ,  H04W48/18 ,  H04W36/14 ,  H04W76/32

Abstract: A method and apparatus for handling evolved universal terrestrial radio access network (E-UTRAN) radio access bearer (E-RAB) switch failure for dual connectivity in a wireless communication system is provided. A master evolved NodeB (MeNB) in dual connectivity receives an E-RAB modification confirm message including a list of E-RABs failed to be modified from a mobility management entity (MME). The MeNB may keep old general packet ratio service (GPRS) tunneling protocol (GTP) tunnels for the failed E-RABs, and trigger a secondary eNB (SeNB) release procedure or a SeNB modification procedure for releasing the failed E-RABs. Alternatively, the MeNB may trigger an E-RAB release procedure for releasing the failed E-RABs.

公开(公告)号：US20190037631A1

公开(公告)日：2019-01-31

申请号：US16014390

申请日：2018-06-21

Applicant: LG Electronics Inc.

Inventor： Daewook BYUN ,  Jian XU ,  Jaewook LEE

IPC: H04W76/25

Abstract: Provided are a method of modifying a radio bearer for a user equipment by a distribution unit (DU) of a base station in a wireless communication system, and an apparatus supporting the method. The method may include: deciding to modify the radio bearer for the user equipment; transmitting information on the radio bearer to a central unit (CU) of the base station; receiving information on an accepted radio bearer from the CU of the base station; and modifying the accepted radio bearer.