公开(公告)号：US20190150096A1

公开(公告)日：2019-05-16

申请号：US16098117

申请日：2017-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae LEE ,  Gwanmo KU ,  Sangwon KIM

IPC: H04W52/14 ,  H04W36/08

Abstract: Provided are a method for a terminal controlling uplink power in a rando access channel-less (RACH-less) handover, and an apparatus for supporting same. The method may comprise the steps of: receiving, from a source base station, an RRC connection reconfiguration message including an uplink grant; transmitting, to a target base station using a first transmission power, an RRC connection reconfiguration complete message, on the basis of the uplink grant; receiving, from the target base station, a NACK corresponding to the RRC connection reconfiguration complete message; ramping the first transmission power to a second transmission power; and transmitting the RRC connection reconfiguration complete message using the ramped second transmission power.

公开(公告)号：US20190124567A1

公开(公告)日：2019-04-25

申请号：US16091084

申请日：2017-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Jaewook LEE ,  Youngdae LEE ,  Sangwon KIM ,  Gwanmo KU

IPC: H04W36/00 ,  H04W36/30 ,  H04W36/08 ,  H04W76/19

CPC classification number: H04W36/0079 ,  H04W36/08 ,  H04W36/305 ,  H04W76/19 ,  H04W76/27

Abstract: A method handling a link failure by a user equipment (UE) in a wireless communication system is disclosed. The method includes steps of suspending at least one data radio bearer (DRB) upon detecting an occurrence of the link failure; transmitting, to a specific cell, a radio resource control message indicating the occurrence of the link failure; receiving a response message as a response of the radio resource control message from the specific cell; and resuming the at least one suspended DRB.

公开(公告)号：US20190116533A1

公开(公告)日：2019-04-18

申请号：US16089342

申请日：2017-03-28

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae LEE ,  Sangwon KIM ,  Jaewook LEE

IPC: H04W36/08 ,  H04W36/32 ,  H04W48/08 ,  H04W16/32 ,  H04W8/08 ,  H04W92/20 ,  H04W68/02

Abstract: Provided are a method for acquiring system information by a terminal in a wireless communication system and an apparatus for supporting the same. The method may comprise the steps of: acquiring system information for a first area and system information for a second area belonging to the first area; entering a third area; acquiring system information for the third area; and determining whether the first area has been changed, on the basis of an identifier included in the system information for the second area and an identifier included in the system information for the third area.

公开(公告)号：US20190021009A1

公开(公告)日：2019-01-17

申请号：US16069478

申请日：2016-12-05

Applicant: LG ELECTRONICS INC.

Inventor： Gwanmo KU ,  Youngdae LEE ,  Sunghoon JUNG ,  Jaewook LEE ,  Sangwon KIM ,  Sangwook HAN

IPC: H04W16/04 ,  H04W16/32 ,  H04W48/20 ,  H04W28/08

CPC classification number: H04W16/04 ,  H04W16/32 ,  H04W28/08 ,  H04W48/04 ,  H04W48/20

Abstract: A method for a terminal performing redistribution target selection in a wireless communication system, and an apparatus supporting the same are provided. The terminal receives redistribution parameters from a network, and performs redistribution target selection based on UE_ID, wherein the UE_ID can be a function of a time varying index and a UE identity.

公开(公告)号：US20180352387A1

公开(公告)日：2018-12-06

申请号：US15778900

申请日：2016-11-22

Applicant: LG ELECTRONICS INC.

Inventor： Sangwon KIM ,  Youngdae LEE

IPC: H04W4/06 ,  H04W48/10 ,  H04J11/00

CPC classification number: H04W4/06 ,  H04W48/08 ,  H04W72/00

Abstract: Provided are a method for determining an MBMS service in which a terminal has interest in a wireless communication system, and a device supporting same. The terminal may include acquiring an SIB15 and determining whether an MBMS SAI (service area identity) for a certain MBMS service in a USD (User Service Description) is included in the SIB15, and determining the certain MBMS service to be an MBMS service of interest.

公开(公告)号：US20180098353A1

公开(公告)日：2018-04-05

申请号：US15565117

申请日：2016-03-31

Applicant: LG ELECTRONICS INC.

Inventor： Sunyoung LEE ,  Seungjune YI ,  Sangwon KIM

IPC: H04W74/08 ,  H04L5/00 ,  H04W4/08 ,  H04W72/12 ,  H04W72/04

CPC classification number: H04W74/085 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0073 ,  H04W4/08 ,  H04W56/00 ,  H04W56/0005 ,  H04W72/0446 ,  H04W72/1215 ,  H04W74/08

Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for performing a random access procedure in a carrier aggregation with at least one SCell operating in an unlicensed spectrum, the method comprising: configuring with a TAG to which at least two uplink cells belong, receiving a PDCCH order on a downlink cell associated with a first uplink cell in the TAG from an eNB; checking whether the first uplink cell belonging to the TAG is available for transmitting the random access preamble or not; selecting one uplink cell among uplink cells in the TAG which are available for transmitting the random access preamble if the first cell is not available for transmitting the random access preamble; and transmitting the random access preamble indicated by the PDCCH order received from the eNB on the selected uplink cell.

公开(公告)号：US20180054714A1

公开(公告)日：2018-02-22

申请号：US15563030

申请日：2016-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae LEE ,  Sangwon KIM

IPC: H04W4/06 ,  H04W76/00 ,  H04W76/02

CPC classification number: H04W4/06 ,  H04L12/189 ,  H04W36/0007 ,  H04W76/19 ,  H04W76/40

Abstract: A method and apparatus for handling a L2 entity in a wireless communication system is provided. A user equipment (UE) receives a service via a first transport channel, changes a type of a transport channel from the first transport channel to a second transport channel, determines whether to re-establish a L2 entity, and receives the service via the second transport channel.

公开(公告)号：US20180035265A1

公开(公告)日：2018-02-01

申请号：US15662104

申请日：2017-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Sangwon KIM ,  Youngdae LEE

IPC: H04W4/06 ,  H04W76/04

CPC classification number: H04W4/06 ,  H04W36/08 ,  H04W48/12 ,  H04W76/27

Abstract: Disclosed are: a method for providing continuity of a multimedia broadcast multicast service (MBMS) service, and a device supporting the same. The method may include: entering a radio resource control (RRC) connected state with respect to a first cell; receiving MBMS-related system information from the first cell; determining whether a mobility condition for continuity of an MBMS service is satisfied based on the received system information; and entering an RRC idle state when it is determined that the mobility condition is satisfied, and the UE does not supports a handover operation.

公开(公告)号：US20180020483A1

公开(公告)日：2018-01-18

申请号：US15523119

申请日：2015-10-30

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae LEE ,  Jaewook LEE ,  Sangwon KIM

IPC: H04W74/08 ,  H04W16/14

CPC classification number: H04W74/02 ,  H04W16/14 ,  H04W28/06 ,  H04W48/16 ,  H04W74/04 ,  H04W74/0833

Abstract: A method and apparatus for performing a random access procedure at a cell on an unlicensed carrier in a wireless communication system is provided. A user equipment (UE) transmits a random access preamble, and receives a random access response including an index of a second cell. A first cell is a first serving cell on a licensed carrier, and the second cell is a second serving cell on the unlicensed carrier.

公开(公告)号：US20170295054A1

公开(公告)日：2017-10-12

申请号：US15107056

申请日：2015-01-29

Applicant: LG ELECTRONICS INC.

Inventor： Youngdae LEE ,  Sunghoon JUNG ,  Sangwon KIM

IPC: H04L12/24 ,  G06F11/07 ,  H04W24/10

CPC classification number: H04L41/06 ,  G06F11/0784 ,  H04Q2213/13349 ,  H04W4/06 ,  H04W24/04 ,  H04W24/10 ,  H04W48/12

Abstract: A method and apparatus for transmitting a report message in a wireless communication system is provided. A user equipment (UE) receives a configuration of measurement, i.e. minimization of drive tests (MDT) configuration, via system information or broadcast/multicast control channel, i.e. multicast control channel (MCCH). If the UE detects a problem for reception of a broadcast/multicast service, the UE immediately transmits a report message.