公开(公告)号：US10090942B2

公开(公告)日：2018-10-02

申请号：US14909648

申请日：2014-08-04

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel Yang ,  Joonkui Ahn ,  Yunjung Yi ,  Hyangsun You ,  Bonghoe Kim ,  Inkwon Seo

IPC: H04W24/08 ,  H04B17/18 ,  H04B17/00 ,  H04L5/00 ,  H04W4/70

Abstract: The present invention relates to a wireless communication system. Specifically, the present invention relates to a method and an apparatus for a terminal to monitor a radio link in a wireless communication system, the method comprising: a step for receiving a radio frame including a plurality of subframes; a step for generating measurement results on the basis of the signal in the radio frame; and a step for evaluating the state of the radio link of the radio frame by comparing the measurement results with one or more threshold values, wherein if a repetition is applied to a physical downlink control channel (PDCCH) transmission, the measurement results are generated on the basis of the combined signal in L (L>1) subframes, and if the repetition is not applied to the PDCCH transmission, the measurement results are generated on the basis of the signal in a single subframe.

公开(公告)号：US10080216B2

公开(公告)日：2018-09-18

申请号：US14651088

申请日：2013-12-09

Applicant: LG Electronics Inc.

Inventor： Bonghoe Kim ,  Dongyoun Seo ,  Suckchel Yang ,  Joonkui Ahn

IPC: H04W72/04 ,  H04J11/00 ,  H04L5/00 ,  H04W28/18 ,  H04W74/08 ,  H04W56/00

CPC classification number: H04W72/042 ,  H04J11/0073 ,  H04J2011/0096 ,  H04L5/0032 ,  H04W28/18 ,  H04W56/0005 ,  H04W56/0055 ,  H04W74/08

Abstract: The present invention provides a method used in a wireless access system supporting carrier aggregation (CA) for acquiring uplink synchronization from two or more geographically spaced cells, and a device for supporting the same. According to one embodiment of the present invention, a method for acquiring uplink synchronization in a wireless access system supporting CA can comprise the steps of: receiving, from a primacy cell (PCell), random access channel (RACH) information related to a first random access step for matching uplink synchronization in a secondary cell (SCell) to be added to CA; and performing the first random access step for matching uplink synchronization in the SCell on the basis of the RACH information.

公开(公告)号：US10075279B2

公开(公告)日：2018-09-11

申请号：US15039375

申请日：2014-11-25

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel Yang ,  Joonkui Ahn ,  Yunjung Yi

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/18 ,  H04W24/10

CPC classification number: H04L5/0098 ,  H04L1/00 ,  H04L1/1812 ,  H04L1/1874 ,  H04L1/1896 ,  H04W24/10 ,  H04W72/0413 ,  H04W76/15 ,  H04W76/18

Abstract: A method and device for deactivating secondary cells by a base station in a wireless communication system, the method including generating, by the BS, a MAC deactivation message for a first SCell, wherein the first SCell is associated with one or more SCells served by the BS; and transmitting, by the BS, the MAC deactivation message to a UE for deactivating the first Cell, wherein the first SCell is used for transmission of PUCCH including uplink control information for multiplexing all uplink control information of the one or more SCells associated with the first Cell, wherein the MAC deactivation message for the first SCell indicates all of the one or more SCells associated with the first SCell are deactivated.

公开(公告)号：US10057032B2

公开(公告)日：2018-08-21

申请号：US14389217

申请日：2013-03-28

Applicant: LG ELECTRONICS INC.

Inventor： Yunjung Yi ,  Dongyoun Seo ,  Suckchel Yang ,  Joonkui Ahn

IPC: H04L1/08 ,  H04L5/16 ,  H04L5/00 ,  H04B7/26

CPC classification number: H04L5/0053 ,  H04B7/2615 ,  H04B7/2656 ,  H04L1/08 ,  H04L5/16

Abstract: A method for transmitting data for a half-duplex device in a wireless communication system is provided. The half-duplex device receives first downlink control information from a base station in a first subframe. The half-duplex device transmits uplink data to the base station in a second subframe. The first downlink control information includes a resource through which the uplink data is transmitted and information on the second subframe.

公开(公告)号：US10051668B2

公开(公告)日：2018-08-14

申请号：US14759393

申请日：2014-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Dongyoun Seo ,  Joonkui Ahn ,  Suckchel Yang ,  Yunjung Yi

IPC: H04L5/14 ,  H04W76/02 ,  H04L1/18 ,  H04W16/00 ,  H04L5/00 ,  H04W76/15

Abstract: Provided are a communication method in a carrier aggregation system in which a plurality of cells are aggregated, and an apparatus utilizing such a communication method. The plurality of cells can be cells using mutually different frame structures. The communication method receives an uplink grant from a first downlink subframe of a first cell, and transmits a PUSCH from a first uplink subframe of a second cell on the basis of the uplink grant. The uplink grant comprises an uplink DAI, and, with GU being the time interval between the first downlink subframe and the first uplink subframe, the UL DAI indicates the number of downlink subframes, from among the plurality of downlink subframes of the second cell connected so as to transmit an acknowledgement/not-acknowledgement (ACK/NACK) from the first uplink subframe, for which the time interval to the first uplink subframe is equal to or greater than the GU.

公开(公告)号：US10045313B2

公开(公告)日：2018-08-07

申请号：US15809964

申请日：2017-11-10

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Byounghoon Kim ,  Suckchel Yang ,  Hanbyul Seo ,  Yunjung Yi

IPC: H04W72/12 ,  H04W52/04 ,  H04W52/36 ,  H04W72/04 ,  H04W52/14

Abstract: Provided are a method and an apparatus for controlling transmission power in a wireless communication system. A wireless device is connected to a first serving cell utilizing a licensed band and a second serving cell utilizing a non-licensed band. The transmission power from the second serving cell is determined by considering the clear channel assessment (CCA) coverage of the wireless device or the second serving cell.

公开(公告)号：US10027396B2

公开(公告)日：2018-07-17

申请号：US15343980

申请日：2016-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun Park ,  Joonkui Ahn ,  Seonwook Kim ,  Suckchel Yang ,  Hanbyul Seo

IPC: H04W4/10 ,  H04B7/06 ,  H04B17/345 ,  H04L5/00 ,  H04W88/02 ,  H04W88/08 ,  H04W74/08 ,  H04L27/26 ,  H04J11/00

Abstract: The present invention discloses a channel state information (CSI) measurement method through which a user equipment (UE) recognizes a resource pattern applied to a current CSI measurement resource through blind detection or dynamic signaling and performs CSI measurement when an evolved Node B (eNB) or the UE performs LBT (Listen-Before-Talk) based signal transmission and the eNB transmits CSI measurement resources (e.g., CRS/CSI-RS/CSI-IM) by applying one of a plurality of resource patterns thereto, and a UE performing the same.

公开(公告)号：US10009932B2

公开(公告)日：2018-06-26

申请号：US15782323

申请日：2017-10-12

Applicant: LG ELECTRONICS INC.

Inventor： Daesung Hwang ,  Yunjung Yi ,  Suckchel Yang

IPC: H04W4/00 ,  H04W74/08 ,  H04W76/02 ,  H04W52/50 ,  H04W52/14 ,  H04W74/04 ,  H04W52/34 ,  H04W52/24 ,  H04W84/04

CPC classification number: H04W74/0833 ,  H04W52/146 ,  H04W52/244 ,  H04W52/34 ,  H04W52/50 ,  H04W74/04 ,  H04W74/08 ,  H04W76/15 ,  H04W84/045

Abstract: One embodiment of the present specification provides a method for performing a random access procedure. The method can comprise the steps of: generating a random access preamble to a first cell; generating a random access preamble to a second cell; determining whether the random access preamble to the first cell and the random access preamble to the second cell are triggered so as to be simultaneously transmitted in the same subframe; selecting the random access preamble to any one of the cells according to a pre-set priority when triggered so as to be simultaneously transmitted; and transmitting the any one selected random access preamble.

公开(公告)号：US09986511B2

公开(公告)日：2018-05-29

申请号：US15113359

申请日：2015-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel Yang ,  Joonkui Ahn ,  Yunjung Yi

IPC: H04W52/14 ,  H04W52/34 ,  H04W52/36

CPC classification number: H04W52/146 ,  H04W52/346 ,  H04W52/367

Abstract: The present invention relates to a wireless communication system, particularly, a method comprising: adjusting transmission power of one or more cells within a first cell group such that transmission power of the first cell group does not exceed a maximum power value set in the first group; adjusting transmission power of one or more cells within a second cell group such that transmission power of the second cell group does not exceed a maximum power value set in the second group; additionally reducing the transmission power of the first cell group and the second cell group if total transmission power of the whole cell group including the first cell group and the second cell group exceeds a maximum power value set in the terminal; and performing uplink transmission in the first cell group and the second cell group by using the additionally reduced transmission power, and a device therefore.

公开(公告)号：US09967846B2

公开(公告)日：2018-05-08

申请号：US15077604

申请日：2016-03-22

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe Kim ,  Dongyoun Seo ,  Suckchel Yang ,  Joonkui Ahn

IPC: H04W56/00 ,  H04W76/02 ,  H04W76/04 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W56/0015 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0073 ,  H04L5/0098 ,  H04W72/042 ,  H04W76/16 ,  H04W76/27

Abstract: Provided through the present application are a method and an apparatus for use in a radio communication system, which supports carrier aggregation and carries out communication in subframe units. More specifically, user equipment operating in a first type carrier for receiving from a base station, a first piece of control information, which is related to the first type carrier and a second type carrier that support the carrier aggregation, can measure a radio signal to carry out radio resource management with respect to the first type carrier by using a first reference signal, which is included in the first type carrier, and/or a second reference signal, which is included in the second type carrier.