公开(公告)号：US10251099B2

公开(公告)日：2019-04-02

申请号：US15656506

申请日：2017-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Jian Xu ,  Daewook Byun ,  Jaewook Lee

IPC: H04W36/00 ,  H04W36/08 ,  H04W88/10

Abstract: In an inter-master eNB (MeNB) handover procedure without secondary eNB (SeNB) change, a user equipment (UE) receives a SeNB kept indicator indicating that a SeNB has been kept successfully from a source MeNB. Upon receiving the SeNB kept indicator, the UE determines that the SeNB has been kept successfully in the inter-MeNB handover without SeNB change, and skips the random access procedure to the SeNB.

公开(公告)号：US10231174B2

公开(公告)日：2019-03-12

申请号：US15558174

申请日：2016-03-15

Applicant: LG ELECTRONICS INC.

Inventor： Daewook Byun ,  Jian Xu

IPC: H04W48/16 ,  H04W4/06 ,  H04W72/00 ,  H04W8/26 ,  H04W36/00

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：US10225779B2

公开(公告)日：2019-03-05

申请号：US15541328

申请日：2015-12-29

Applicant: LG ELECTRONICS INC.

Inventor： Jian Xu ,  Daewook Byun

IPC: H04W36/08 ,  H04W36/00 ,  H04W36/30 ,  H04W36/18 ,  H04W92/20 ,  H04W76/19 ,  H04W76/15 ,  H04W88/06 ,  H04W88/08

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：US20190058981A1

公开(公告)日：2019-02-21

申请号：US16074563

申请日：2017-02-06

Applicant: LG ELECTRONICS INC.

Inventor： Jian Xu ,  Daewook Byun ,  Youngdae Lee

IPC: H04W4/40 ,  H04W4/06 ,  H04W72/00 ,  H04W72/08

Abstract: Upon receiving an uplink (UL) V2X message from a vehicle user equipment (UE) or a road side unit (RSU) UE, a vehicle-to-everything (V2X) application server determines information on resource allocation for a downlink (DL) V2X message and transmits the information on resource allocation to a multi-cell/multicast coordination entity (MCE). The MCE (for multimedia broadcast multicast services (MBMS) based resource allocation scheme) or an eNB (for single-cell point-to-multipoint (SC-PTM) resource allocation scheme) allocates resources for the DL V2X message based on the received information on resource allocation.

公开(公告)号：US10201032B2

公开(公告)日：2019-02-05

申请号：US15123611

申请日：2015-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Jian Xu ,  Kyungmin Park ,  Daewook Byun

IPC: H04W76/18 ,  H04W76/12 ,  H04W36/08 ,  H04W36/28 ,  H04W76/15 ,  H04W84/04 ,  H04W88/16

Abstract: A method and apparatus for transmitting information on a serving gateway (S-GW) in a wireless communication system is provided. A mobility management entity (MME) or a small cell evolved NodeB (SeNB) which manages a small cell, transmits an indication to a macro eNB (MeNB), if the MeNB and the SeNB are connected to different S-GWs from each other.

公开(公告)号：US10172111B2

公开(公告)日：2019-01-01

申请号：US15120656

申请日：2015-03-18

Applicant: LG ELECTRONICS INC.

Inventor： Daewook Byun ,  Jian Xu ,  Kyungmin Park

IPC: H04W68/00 ,  H04W36/00 ,  H04W92/20 ,  H04W84/04 ,  H04W16/32

Abstract: A method and apparatus for transmitting a cause value related to a small cell in a wireless communication system is provided. An evolved NodeB (eNB) of a small cell receives a request message form a macro cell, and as a response to the request message, transmits to the macro cell a failure message including a cause value related to the small cell. The cause value related to the small cell can indicate the reason why the small cell which is in an “off” state cannot shift to an “on” state, and the failure message can be any one of a handover preparation failure message, a cell activation failure message, or a secondary evolved NodeB (SeNB) addition failure message.

公开(公告)号：US10080148B2

公开(公告)日：2018-09-18

申请号：US14900564

申请日：2014-06-20

Applicant: LG ELECTRONICS INC.

Inventor： Daewook Byun ,  Kyungmin Park ,  Jian Xu ,  Insun Lee ,  Youngdae Lee

IPC: H04W24/02 ,  H04W36/00 ,  H04W52/02 ,  H04W4/06 ,  H04W16/08 ,  H04L12/18 ,  H04W92/20

CPC classification number: H04W24/02 ,  H04L12/189 ,  H04W4/06 ,  H04W16/08 ,  H04W36/0005 ,  H04W52/0206 ,  H04W92/20 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/12 ,  Y02D70/1242 ,  Y02D70/126 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/20 ,  Y02D70/21

Abstract: The present invention relates to a method of transmitting, by a base station, a signal for compensating for coverage in a wireless communication system, and an apparatus therefor. A method of transmitting, by a base station, a signal for compensating for coverage, comprises: receiving information indicating that a first base station is a base station supporting a multimedia broadcast/multicast service (MBMS), from the first base station in a state enabling switching off; receiving a coverage compensation request message containing MBMS-related information of the first base station from the first base station; and transmitting, by a compensation base station to the first base station, a coverage compensation response message indicating whether it is possible to compensate for the coverage of the first base station, wherein whether it is possible to compensate for the coverage of the first base station is determined on the basis of the MBMS-related information.

公开(公告)号：US20180242209A1

公开(公告)日：2018-08-23

申请号：US15884124

申请日：2018-01-30

Applicant: LG Electronics Inc.

Inventor： Jian Xu ,  Kyungmin Park ,  Daewook Byun

IPC: H04W36/00 ,  H04W36/38 ,  H04W36/08 ,  H04W68/00 ,  H04W76/10 ,  H04W36/02 ,  H04W36/14 ,  H04W68/02 ,  H04W72/04

CPC classification number: H04W36/0061 ,  H04W36/00 ,  H04W36/0027 ,  H04W36/0069 ,  H04W36/02 ,  H04W36/08 ,  H04W36/14 ,  H04W36/38 ,  H04W68/00 ,  H04W68/02 ,  H04W72/0406 ,  H04W72/042 ,  H04W76/10 ,  H04W84/045

Abstract: The present invention relates to a method for performing dual connectivity operation in a heterogeneous network, which includes: transmitting a first message to a second eNB for the dual connectivity operation; and receiving a response for the first message from the second eNB, wherein the response includes E-RAB (E-UTRAN Radio Access Bearer) related information.

公开(公告)号：US09986448B2

公开(公告)日：2018-05-29

申请号：US15323696

申请日：2015-07-09

Applicant: LG ELECTRONICS INC.

Inventor： Daewook Byun ,  Jian Xu ,  Jaehyun Kim

IPC: H04M3/42 ,  H04W24/04 ,  H04W8/26 ,  H04W76/02 ,  H04W92/20

CPC classification number: H04W24/04 ,  H04W4/90 ,  H04W8/24 ,  H04W8/26 ,  H04W76/18 ,  H04W92/20

Abstract: The present specification proposes a method of displaying a terminal involved in public disaster safety communication in a single base station that has a constraint on a normal backhaul connection. Even when the backhaul connection is disconnected, it is possible for a terminal to communicate by using an X2 connection between base stations, but there is a limitation in that it is difficult for a terminal to find the position of another terminal because a connection between the base station and an evolved packet core (EPC) is disconnected. Thus, there is a need for a method to solve this limitation. Whether there is a backhaul connection between a first base station and the EPC is detected, and when a backhaul connection is not detected, a first ID is allocated to a terminal in the service area of the first base station and the first ID allocated is transmitted to a second base station. When there is a backhaul connection between the first base station and the EPC, a globally unique temporary identifier (GUTI) of the terminal in the service area of the first base station is received from a mobility management entity (MME). Then, whether there is a backhaul connection between the first base station and the EPC is detected, and when a backhaul connection is not detected, the GUTI of the terminal in the service area of the first base station is transmitted to the second base station.

公开(公告)号：US09900819B2

公开(公告)日：2018-02-20

申请号：US14888775

申请日：2014-05-09

Applicant: LG Electronics Inc.

Inventor： Kyungmin Park ,  Insun Lee ,  Daewook Byun ,  Jian Xu

IPC: H04W36/22 ,  H04W36/00 ,  H04W92/20 ,  H04W24/02 ,  H04W36/32

CPC classification number: H04W36/22 ,  H04W24/02 ,  H04W36/0011 ,  H04W36/0083 ,  H04W36/32 ,  H04W92/20

Abstract: A method and apparatus for transmitting information on user equipments (UEs) in a wireless communication system is provided. A first eNodeB (eNB) transmits information on a first type of UEs and information on a second type of UEs to a second eNB. The first type of UEs is UEs located around a cell border between a first cell, controlled by the first eNB, and a second cell, controlled by the second eNB. The second type of UEs is UEs located at the other part of coverage of the first cell and the second cell.