公开(公告)号：US20210144793A1

公开(公告)日：2021-05-13

申请号：US17156303

申请日：2021-01-22

Applicant: LG Electronics Inc.

Inventor： Seokjung KIM ,  Daewook BYUN ,  Jian XU

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

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：US20200178140A1

公开(公告)日：2020-06-04

申请号：US16788010

申请日：2020-02-11

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Daewook BYUN

IPC: H04W36/18 ,  H04W36/30 ,  H04W36/00 ,  H04W76/15 ,  H04W92/20 ,  H04W36/08

Abstract: A method and apparatus for performing an inter-master eNodeB (MeNB) handover procedure without secondary eNB (SeNB) change in a wireless communication system is provided. A source MeNB transmits a handover request message including a first indication of a SeNB to a target MeNB. The first indication may correspond to a SeNB identifier (ID). Upon receiving the handover request message including the first indication, the target MeNB transmits a SeNB addition request message including a second indication of a UE, served by the SeNB, to the SeNB. The second indication may correspond to an old SeNB UE X2AP ID, which was allocated by the SeNB. Upon receiving the SeNB addition request message including the second indication, the SeNB may transmit a SeNB addition acknowledge message including a third indication of keeping bearers of the SeNB from the SeNB.

公开(公告)号：US20200068448A1

公开(公告)日：2020-02-27

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：US20190327729A1

公开(公告)日：2019-10-24

申请号：US16434393

申请日：2019-06-07

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Jaewook Lee ,  Daewook Byun

IPC: H04W72/04 ,  H04W76/15 ,  H04W76/32 ,  H04W28/08 ,  H04W76/27 ,  H04W76/22 ,  H04W76/12 ,  H04W76/18

Abstract: A method and apparatus for performing a wireless local area network (WLAN) termination (WT) addition/modification procedure in a wireless communication system is provided. For the WT addition procedure, an eNodeB (eNB) transmits a WT Addition Request message to a WT via a Xw interface, and receives a WT Addition Request Acknowledge message from the WT via the Xw interface. For eNB initiated WT modification procedure, the eNB transmits a WT Modification Request message to a WT via a Xw interface, and receives a WT Modification Request Acknowledge message from the WT via the Xw interface. For the WT initiated WT modification procedure, the eNB receives a WT Modification Required message from a WT via a Xw interface, and transmits a WT Modification Confirm message to the WT via the Xw interface. The WT is a logical node that terminates the Xw interface.

公开(公告)号：US20190159093A1

公开(公告)日：2019-05-23

申请号：US16255732

申请日：2019-01-23

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Daewook BYUN

IPC: H04W36/18 ,  H04W36/30 ,  H04W36/08 ,  H04W92/20 ,  H04W76/15 ,  H04W36/00 ,  H04W76/19

Abstract: A method and apparatus for performing an inter-master eNodeB (MeNB) handover procedure without secondary eNB (SeNB) change in a wireless communication system is provided. A source MeNB transmits a handover request message including a first indication of a SeNB to a target MeNB. The first indication may correspond to a SeNB identifier (ID). Upon receiving the handover request message including the first indication, the target MeNB transmits a SeNB addition request message including a second indication of a UE, served by the SeNB, to the SeNB. The second indication may correspond to an old SeNB UE X2AP ID, which was allocated by the SeNB. Upon receiving the SeNB addition request message including the second indication, the SeNB may transmit a SeNB addition acknowledge message including a third indication of keeping bearers of the SeNB from the SeNB.

公开(公告)号：US20190158360A1

公开(公告)日：2019-05-23

申请号：US16065021

申请日：2017-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Seokjung KIM ,  Daewook BYUN

IPC: H04L12/24 ,  H04W36/08

Abstract: A new cell specific procedure and/or a mobility procedure may be defined to more efficiently support a network slice function in new radio access technology (NR), which is a part of a 5G communication system. In terms of a radio access network (RAN) -RAN interface, the cell specific procedure comprises that a first RAN node transmits a first indicator related with the slice support of the first RAN node to a second RAN node, and receives from the second RAN node a second indicator related with the slice support of the first RAN node. The mobility procedure comprises that a target RAN node transmits a path change request message including slice-related information to a core network (CN) node, and receives from the CN node a path change response message including at least one of a common control plane function (C-CPF) identifier (ID), a finally selected slice-related ID or U-Plane information.

公开(公告)号：US20190150077A1

公开(公告)日：2019-05-16

申请号：US16244970

申请日：2019-01-10

Applicant: LG ELECTRONICS INC.

Inventor： Daewook BYUN ,  Jian XU

IPC: H04W48/16 ,  H04W36/00 ,  H04W4/06 ,  H04W72/00

Abstract: Provided is a method for a MCE transmitting a list of cells providing a SCPTM service in a wireless communication system. A MCE may receive a cell ID list from a MME and transmit the cell ID list received from the MME to a base station. The cell ID list transmitted to the base station and the cell ID list received from the MME may be identical. Provided is a method for a base station receiving a list of cells providing a SCPTM service in a wireless communication system. A base station may receive, from a MCE, a cell ID list received from a MME, and on the basis of the cell ID list received from the MCE, perform a SCPTM service. The cell ID list received from the MCE and the cell ID list received from the MME may be identical.

公开(公告)号：US20180376529A1

公开(公告)日：2018-12-27

申请号：US16116260

申请日：2018-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Daewook BYUN

IPC: H04W76/15 ,  H04W76/11 ,  H04L29/12 ,  H04W8/08 ,  H04W76/12 ,  H04W88/10 ,  H04W88/16 ,  H04W92/20 ,  H04W88/08

Abstract: A method and apparatus for indicating support of a local gateway (L-GW) in a wireless communication system is provided. A master evolved NodeB (MeNB) in dual connectivity receives an indication of L-GW support from a secondary eNB (SeNB) in dual connectivity, which is co-located with the L-GW, and transmit the indication of L-GW support of the SeNB to a mobility management entity (MME). The indication of L-GW support may include a local Internet protocol access (LIPA) L-GW transport layer address or a selected IP traffic offload (SIPTO) L-GW transport layer address.

公开(公告)号：US20180359671A1

公开(公告)日：2018-12-13

申请号：US15778138

申请日：2016-12-02

Applicant: LG ELECTRONICS INC.

Inventor： Jian XU ,  Youngdae LEE ,  Daewook BYUN

IPC: H04W36/08 ,  H04W36/00

CPC classification number: H04W36/08 ,  H04W36/0083 ,  H04W36/03 ,  H04W76/23 ,  H04W84/042

Abstract: A method and apparatus for performing a handover procedure in a wireless communication system is provided. A source eNodeB (eNB) of the handover procedure transmits a handover request message including a user equipment (UE) context of a master UE and a UE context of a companion UE from a source eNB. A target eNB identifies relationship between the master UE and the companion UE according to the handover request message including the UE contexts of the master UE and the companion UE.

公开(公告)号：US20180352424A1

公开(公告)日：2018-12-06

申请号：US15781098

申请日：2016-10-26

Applicant: LG ELECTRONICS INC.

Inventor： Daewook BYUN ,  Jian XU

IPC: H04W8/24 ,  H04W76/30 ,  H04W8/08 ,  H04W92/12 ,  H04W8/26

CPC classification number: H04W8/24 ,  H04W4/70 ,  H04W8/08 ,  H04W8/26 ,  H04W76/10 ,  H04W76/30 ,  H04W92/12

Abstract: Provided are a method for receiving, by a base station, a user equipment identity (UE ID) in a wireless communication system, and a device for supporting the same. The base station transmits, to a mobility management entity (MME), uplink data and release assistance information transmitted by the UE and receives the UE ID from the MME, wherein the release assistance information can indicate whether transmission of downlink data according to transmission of uplink data is expected.