公开(公告)号：US10219263B2

公开(公告)日：2019-02-26

申请号：US15329572

申请日：2015-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel Yang ,  Joonkui Ahn ,  Seungmin Lee ,  Hanbyul Seo

IPC: H04W72/00 ,  H04W72/04 ,  H04B7/26 ,  H04L5/00 ,  H04W24/08 ,  H04W52/14 ,  H04L27/00 ,  H04W52/40 ,  H04W52/24

Abstract: The present invention relates to a wireless communication system, specifically to a method comprising the steps of: configuring a PCell of a licensed band and an SCell of an unlicensed band for a base station; receiving resource configuration information concerning the SCell by means of a physical downlink control channel (PDCCH) of the PCell; configuring a subframe set within a temporary time duration on the SCell on the basis of the resource configuration information; and communicating with the base station by means of the subframe set temporarily configured on the SCell, and to an apparatus for the method.

公开(公告)号：US10212738B2

公开(公告)日：2019-02-19

申请号：US15573435

申请日：2016-05-12

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Suckchel Yang ,  Kijun Kim ,  Byounghoon Kim ,  Hanbyul Seo ,  Hanjun Park ,  Daesung Hwang

IPC: H04W74/08 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04W76/28 ,  H04W28/02 ,  H04W28/26

Abstract: The present invention relates to a wireless access system that supports an unlicensed band, and provides various methods for adjusting a contention window size, methods for determining the time when the adjusted contention window size is applied, methods for distinguishing between a collision and a channel error, and devices for supporting the same. As an embodiment of the present invention, a method for adjusting a contention window size in a wireless access system supporting an unlicensed band may comprise the steps of: performing a channel access procedure; when it is determined through the performed channel access procedure that a serving cell (Scell) in the unlicensed band is in an idle state, transmitting a transmission burst including a downlink signal through the unlicensed band; receiving hybrid automatic repeat and request acknowledgment (HARQ-ACK) information corresponding to the transmission burst; and adjusting the CWS using the number of DTX states in the HARQ-ACK information when the transmission burst is scheduled in a self-carrier scheduling scheme.

公开(公告)号：US10212678B2

公开(公告)日：2019-02-19

申请号：US15033863

申请日：2014-11-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04J3/06 ,  H04W56/00 ,  H04B7/0413 ,  H04L5/00 ,  H04W72/12 ,  H04W16/32 ,  H04W84/04

Abstract: A method and an apparatus for network synchronization based on network listening are provided. The method comprises receiving signal for synchronization to other cell, performing synchronization to other cell based on a reference signal for synchronization, and receiving and/or transmitting data at a timing based on the synchronization, wherein the reference signal for synchronization is one of CRS, CSI-RS, PSS and/or SSS, DM-RS, and MBSFN-RS.

公开(公告)号：US10205576B2

公开(公告)日：2019-02-12

申请号：US15102689

申请日：2014-12-23

Applicant: LG Electronics Inc.

Inventor： Joonkui Ahn ,  Dongyoun Seo ,  Suckchel Yang ,  Daesung Hwang

IPC: H04L5/00 ,  H04L1/18 ,  H04L1/16 ,  H04W72/04 ,  H04L5/14

Abstract: Provided are a method and an apparatus for transmitting acknowledgement/non-acknowledgement (ACK/NACK) of a terminal in a carrier wave aggregation system. The method comprises: receiving a UL grant by a subframe n−k1 of a first serving cell, wherein the UL grant comprises uplink allocation and piggyback information, wherein the piggyback information indicates the number of first physical downlink shared channels (PDSCHs) scheduled before the subframe n−k1; attempting a detection of a second PDSCH by a subframe n−k2 of a second serving cell; and transmitting an uplink transmission block and ACK/NACK information through a physical uplink shared channel (PUSCH) on the basis of the uplink allocation by subframe n, wherein n, k1 and k2 are constants, k1>k2, and the ACK/NACK information may comprise a first ACK/NACK according to the piggyback information, and a second ACK/NACK corresponding to the detected second PDSCH.

公开(公告)号：US10200938B2

公开(公告)日：2019-02-05

申请号：US14915522

申请日：2015-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun You ,  Yunjung Yi ,  Joonkui Ahn ,  Jonghyun Park ,  Daesung Hwang

IPC: H04W48/16 ,  H04J11/00 ,  H04L5/00 ,  H04W72/04

Abstract: A disclosure of the present specification provides a method for performing a cell search procedure or a cell discovery procedure in which a discovery signal is transmitted to a resource element determined in consideration of interference between adjacent cells. The method comprises the steps of: receiving a discovery signal generated by a particular small cell; and searching for the particular small cell on the basis of the discovery signal, wherein the position of the resource element to which the discovery signal is transmitted may be changed according to time.

公开(公告)号：US10200185B2

公开(公告)日：2019-02-05

申请号：US15031178

申请日：2015-01-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun You ,  Yunjung Yi ,  Suckchel Yang ,  Joonkui Ahn ,  Jonghyun Park

IPC: H04W52/02 ,  H04L5/16 ,  H04W76/28 ,  H04L5/00 ,  H04J1/16 ,  H04W4/70

Abstract: One embodiment of the present description provides a method for monitoring a physical downlink control channel (PDCCH). The method for monitoring a PDCCH can comprise the steps of: performing a frequency division duplex (FDD) half-duplex operation; and determining whether to monitor the PDCCH if discontinuous reception (DRX) is set. Here, when a downlink subframe of a downlink carrier is positioned immediately before an uplink subframe of an uplink carrier, the PDCCH can be monitored in the downlink subframe during an active time.

公开(公告)号：US10194422B2

公开(公告)日：2019-01-29

申请号：US15503062

申请日：2015-09-01

Applicant: LG Electronics Inc.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Byounghoon Kim ,  Joonkui Ahn

IPC: H04W72/04 ,  H04L1/18 ,  H04L5/00 ,  H04W72/12

Abstract: The present invention relates to a signal transmission and reception method and device using a plurality of cells of a terminal in a wireless communication system supporting a carrier aggregation. Particularly, the signal transmission and reception method comprises the steps of: receiving transmission control information for a primary cell (PCell) and a secondary cell (SCell) according to uplink-downlink configuration difference from each other, transmitting and receiving a signal in a specific time period according to the transmission control information; and performing a signal transmission and reception operation according to a pre-defined configuration when a signal transmission in a specific time period is not indicated in the transmission control information.

公开(公告)号：US10193608B2

公开(公告)日：2019-01-29

申请号：US15326998

申请日：2015-07-15

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Hanbyul Seo ,  Kijun Kim ,  Joonkui Ahn ,  Byounghoon Kim ,  Seungmin Lee ,  Yunjung Yi ,  Seonwook Kim

IPC: H04B7/06 ,  H04W16/14 ,  H04L5/00 ,  H04B17/24 ,  H04B7/0417

Abstract: Disclosed are a method for transmitting/receiving channel state information (CSI) in a wireless communication system and a device therefor. Specifically, a method for transmitting channel state information by a terminal in a wireless communication system may comprise the steps of: determining CSI for a serving cell in an unlicensed band; and transmitting the CSI at a periodic CSI report time point within a reserved resource period (RRP) which is a time period reserved for transmitting/receiving data in the serving cell.

公开(公告)号：US20190028253A1

公开(公告)日：2019-01-24

申请号：US16079388

申请日：2017-03-23

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Kilbom Lee ,  Kijun Kim ,  Hyunsoo Ko

IPC: H04L5/00 ,  H04J11/00 ,  H04W48/16 ,  H04B7/0408 ,  H04L1/00 ,  H04L1/18

Abstract: A method and a device for transmitting a discovery reference signal (DRS) are provided. The device selects, as a DRS transmission mode, either a switching mode for transmitting a narrow beam or a repeating mode for transmitting a wide beam. The narrow beam covers greater coverage than that of the wide beam. The device transmits the DRS in a plurality of time resources according to the selected DRS transmission mode.

公开(公告)号：US20190007933A1

公开(公告)日：2019-01-03

申请号：US16100957

申请日：2018-08-10

Applicant: LG Electronics Inc.

Inventor： Yunjung Yi ,  Bonghoe Kim ,  Kijun Kim ,  Joonkui Ahn ,  Jonghyun Park ,  Daesung Hwang

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08 ,  H04W4/06 ,  H04L5/14 ,  H04J11/00

Abstract: The present specification provides a method and UE for receiving configuration usable for a discovery, which can be used in a small cell scenario. In detail, the UE is configured for receiving measurement configuration for a discovery signal, wherein the discovery signal includes CRS, PSS, and SSS. The discovery may further include a channel status information-reference signal (CSI-RS) depending on a configuration of the CSI-RS. The measurement configuration may include at least one set of configuration elements. The UE performs a measurement on the discovery signal based on the received configuration. Further, the UE receives channel status information-reference signal (CSI-RS) configuration including at least one set of CSI-RS configuration elements used for a zero power CSI-RS, wherein the CSI-RS configuration includes at least one set of CSI-RS configuration elements, each set of CSI-RS configuration elements includes CSI-RS interval information and CSI-RS offset information.