公开(公告)号：US10608803B2

公开(公告)日：2020-03-31

申请号：US16408233

申请日：2019-05-09

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Suckchel Yang

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

Abstract: A method for transmitting a positive-acknowledgement/negative-acknowledgement (ACK/NACK) in a wireless communication system, performed by a wireless device, includes receiving a plurality of downlink (DL) grants on a plurality of serving cells, each DL grant including a counter downlink assignment index (DAI) and an ACK/NACK resource indicator (ARI), the counter DAI indicating an accumulative number of PDSCHs received by the wireless device for a corresponding DL grant, receiving a plurality of physical downlink shared channels (PDSCHs) associated with the plurality of DL grants, selecting one of a plurality of sets of PUCCH resources based on a payload size of uplink control information (UCI), the UCI including ACK/NACK bits for the plurality of PDSCHs, determining a PUCCH resource within the selected set of PUCCH resources based on an ARI included in the most recently received DL grant among the plurality of DL grants and transmitting the UCI by using a PUCCH format associated with the determined PUCCH resource.

公开(公告)号：US10568141B2

公开(公告)日：2020-02-18

申请号：US15531277

申请日：2015-11-27

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Suckchel Yang ,  Yunjung Yi

IPC: H04W74/08 ,  H04W72/12 ,  H04W16/14

Abstract: A disclosure of the present specification provides a random access method for an unlicensed band. The method comprises the steps of: transmitting, by a user equipment (UE), a random access preamble in a first cell of the unlicensed band; and receiving, by the UE, a random access response in a second cell, wherein the second cell may be a first cell, a cell of the unlicensed band, included in a cell group to which the first cell belongs, or a cell of the unlicensed band, included in a timing advance group (TAG) within the cell group, to which the first cell belongs.

公开(公告)号：US10560171B2

公开(公告)日：2020-02-11

申请号：US16313399

申请日：2017-06-26

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Suckchel Yang ,  Daesung Hwang

IPC: H04B7/06 ,  H04W72/14 ,  H04W72/04 ,  H04W74/08 ,  H04W16/14 ,  H04W48/16 ,  H04W24/10 ,  H04B7/0452 ,  H04W72/12 ,  H04L5/00

Abstract: Disclosed are a method for a terminal to report channel state information (CSI) to a base station, and an apparatus for supporting the same. More specifically, disclosed are a method for a terminal to report CSI in a wireless communication system supporting an unlicensed band by transmitting a physical uplink shared channel (PUSCH) which only includes the CSI without an uplink shared channel (UL-SCH), and apparatuses for supporting the same.

公开(公告)号：US10548169B2

公开(公告)日：2020-01-28

申请号：US16074599

申请日：2017-02-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W76/28 ,  H04W76/27 ,  H04B7/06 ,  H04L1/18 ,  H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04W72/12 ,  H04W72/14 ,  H04L1/16

Abstract: The present invention relates to a wireless communication system, and specifically, to a method and a device for the method which comprises the steps of: receiving a PDCCH including uplink scheduling information; and transmitting, at a UL SF, a PUSCH indicated by the uplink scheduling information, wherein, if the PDCCH requests a transmission of an ACK, the PUSCH includes ACK information about a SF set corresponding to the UL SF, wherein the SF set includes a plurality of SFs.

公开(公告)号：US10548167B2

公开(公告)日：2020-01-28

申请号：US15571453

申请日：2016-05-13

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Byounghoon Kim ,  Suckchel Yang ,  Yunjung Yi ,  Seonwook Kim

IPC: H04J3/06 ,  H04W74/08 ,  H04W16/14 ,  H04W56/00

Abstract: Provided are a method for performing a random access process in an unlicensed band, and a device using the same. The device receives a random access preamble (RAP) order instructing the transmission of a RAP. The device performs a clear channel assessment (CCA) in an unlicensed cell during an RAP window so as to transmit the RAP when the device succeeds in CCA.

公开(公告)号：US10542492B2

公开(公告)日：2020-01-21

申请号：US15761295

申请日：2016-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Kijun Kim ,  Hanbyul Seo ,  Jonghyun Park ,  Hanjun Park ,  Seonwook Kim

IPC: H04W52/02 ,  H04W16/14 ,  H04W56/00 ,  H04W72/04

Abstract: Provided are a method for discontinuous reception (DRX) in an unlicensed band, and a device using the same. The device is converted from a sleep state to an active state, and attempts downlink synchronization during a synchronization period. If the device does not obtain the downlink synchronization during the synchronization period, downlink data is received in the unlicensed band on the assumption that the modulation order of the downlink data scheduled in the active state is not greater than a specific value.

公开(公告)号：US20200007259A1

公开(公告)日：2020-01-02

申请号：US16564193

申请日：2019-09-09

Applicant: LG Electronics Inc.

Inventor： Joonkui Ahn ,  Kijun Kim ,  Suckchel Yang ,  Hanjun Park ,  Seonwook Kim

IPC: H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04W16/14 ,  H04W88/06 ,  H04W24/08 ,  H04W72/04

Abstract: Provided are a method for monitoring a control channel in an unlicensed band and an apparatus using the same. In an unlicensed cell, a user equipment (UE) monitors a physical downlink control channel (PDCCH) having burst control information in a search space defined in a control region of a subframe. The control region comprises a plurality of control channel elements (CCEs) starting from an index 0, and the search space is defined only in, from among the plurality of CCEs, first four CCEs and first eight CCEs.

公开(公告)号：US10523397B2

公开(公告)日：2019-12-31

申请号：US15545240

申请日：2016-01-20

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun Park ,  Suckchel Yang ,  Joonkui Ahn ,  Seungmin Lee ,  Daesung Hwang

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

Abstract: A method for transmitting uplink control information and an apparatus therefor are disclosed. In a method for transmitting uplink control information using a physical uplink shared channel (PUSCH) in a wireless communication system, the method is performed by a terminal and includes receiving downlink control information including an accumulated number of physical downlink shared channels (PDSCH) transmissions associated with a cell group configured for the terminal, coding the uplink control information using the accumulated number of PDSCH transmissions, and transmitting the coded uplink control information using the PUSCH.

公开(公告)号：US20190394000A1

公开(公告)日：2019-12-26

申请号：US16485209

申请日：2018-03-16

Applicant: LG Electronics Inc.

Inventor： Bonghoe Kim ,  llmu Byun ,  Joonkui Ahn ,  Sukhyon Yoon ,  Yunjung Yi

IPC: H04L5/00

Abstract: A method and device for transmitting a transport block in a wireless communication system is provided. Particularly, a terminal receives, from a base station, information on the number of subcarriers in a partial band included in an allocated carrier. The terminal distributes a soft buffer possessed by the terminal in proportion to the number of subcarriers in the partial band. The terminal determines a transport block size for each partial band according to the size of the distributed soft buffer. The terminal transmits, to the base station, the transport block within the transport block size.

公开(公告)号：US10512101B2

公开(公告)日：2019-12-17

申请号：US15574063

申请日：2016-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Suckchel Yang ,  Joonkui Ahn ,  Daesung Hwang

IPC: H04W72/14 ,  H04L5/00 ,  H04L5/14 ,  H04W72/04 ,  H04W72/12

Abstract: The present method, for a terminal carrying out carrier aggregation in a wireless communication system, comprises the steps of: receiving, from a base station, at least one downlink grant; determining whether or not the at least one downlink grant corresponds to a valid downlink grant; and on the basis of the determination, transmitting a physical uplink control channel (PUCCH), wherein the PUCCH transmission step, on the basis of the determination, comprises the steps of: if a downlink grant included in the at least one downlink grant is a valid down grant, then transmitting a PUCCH associated with the valid downlink grant; and if a downlink grant included in the at least one downlink grant is not a valid down grant.