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：US10506625B2

公开(公告)日：2019-12-10

申请号：US16248653

申请日：2019-01-15

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04L1/18 ,  H04W88/08 ,  H04W4/70

Abstract: Disclosed are a method for transmitting and receiving a scheduling request between a terminal and a base station in a wireless communication system, and a device for supporting same.

公开(公告)号：US10470049B2

公开(公告)日：2019-11-05

申请号：US15753840

申请日：2016-08-22

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Joonkui Ahn ,  Hanjun Park ,  Seonwook Kim

IPC: H04W16/14 ,  H04L1/04 ,  H04L5/00 ,  H04W72/04 ,  H04W74/08 ,  H04L1/00

Abstract: Provided are a method for determining a valid subframe for cell in a non-licensed band in a wireless communication system, and a wireless apparatus using the method. The method comprises: determining whether all orthogonal frequency division multiplexing (OFDM) symbols of the cell are usable; and when all of the OFDM symbols of the subframe are usable, determining whether the subframe is a valid subframe based on whether a channel state information-reference signal (CSI-RS) resource is present in the subframe.

公开(公告)号：US10470047B2

公开(公告)日：2019-11-05

申请号：US15077353

申请日：2016-03-22

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun Park ,  Joonkui Ahn ,  Seonwook Kim ,  Hyunho Lee

IPC: H04W16/14 ,  H04L5/00 ,  H04B17/318 ,  H04W74/08 ,  H04J11/00 ,  H04L27/00

Abstract: Provided is a method for performing channel sensing by a node. The node receives information about a known signal to be transmitted by at least one node of a node group that the node performing the channel sensing belongs to, detects the known signal using the information about the known signal, cancels reception power of the known signal from measured reception power, during a time period in which the known signal is detected, compares remaining reception power except for the reception power with a threshold, and determines whether a channel is occupied or unoccupied according to the comparison. The information about the known signal includes a sequence of the known signal, a power offset between a transmission signal and the known signal during a valid duration of the reception power of the known signal, or a cancellation ratio of reception power of the transmission signal during the valid duration.

公开(公告)号：US10439698B2

公开(公告)日：2019-10-08

申请号：US15748387

申请日：2016-07-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyunho Lee ,  Suckchel Yang ,  Seungmin Lee ,  Joonkui Ahn ,  Seonwook Kim

IPC: H04B7/06 ,  H04B17/24 ,  H04B17/309 ,  H04W24/10 ,  H04L1/00

Abstract: An aperiodic channel state reporting method in a wireless communication system, according to an embodiment of the present invention, is performed by means of a terminal. And the method comprises the steps of: receiving an aperiodic channel state information (CSI) report request from a base station; and calculating aperiodic CSI with respect to objects for CSI measurement indicated by means of the aperiodic CSI report request and then transmitting same to the base station, wherein, if valid measurement resources do not exist during a particular time interval with respect to the particular objects for CSI measurement indicated by means of the aperiodic CSI report request, the aperiodic CSI with respect to the objects for CSI measurement can be set as a particular indication value and be transmitted.

公开(公告)号：US10433332B2

公开(公告)日：2019-10-01

申请号：US15523834

申请日：2015-11-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/14 ,  H04W28/26 ,  H04W74/08 ,  H04W72/12

Abstract: Provided are a method for transmitting uplink in an unlicensed band and a device using the same. The device performs a clear channel assessment (CCA) inside a transmission window in an unlicensed band to thereby confirm whether a channel is idle. When the channel is idle, the device transmits an uplink transmission block inside the transmission window in the unlicensed band.

公开(公告)号：US10368363B2

公开(公告)日：2019-07-30

申请号：US15565804

申请日：2016-04-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04B7/0452 ,  H04W16/14 ,  H04W74/08 ,  H04B7/0404 ,  H04W74/00

Abstract: Disclosed are an uplink data transmission method in a wireless communication system and a device therefor. Particularly, a method for transmitting uplink data in an unlicensed band by a user equipment (UE) in a wireless communication system may comprise the steps of: receiving, from a base station, uplink scheduling information within a cell operating in an unlicensed band; sensing a channel of the cell; transmitting a reservation signal when the channel is sensed to be in an idle state; and transmitting, to the base station, uplink data in a wireless resource allocated on the basis of the uplink scheduling information, wherein the channel is sensed to be in the idle state when energy detected, except for the reservation signal transmitted from another UE that is co-scheduled along with the UE for uplink multi-user multiple input multiple output (UL MU-MIMO) transmission, is smaller than a predetermined threshold value.

公开(公告)号：US20190215217A1

公开(公告)日：2019-07-11

申请号：US16334437

申请日：2017-09-27

Applicant: LG Electronics Inc.

Inventor： Seonwook Kim ,  Jiwon Kang ,  Hyunsoo Ko ,  Youngtae Kim ,  Joonkul Ahn ,  Suckchel Yang ,  Seungmin Lee ,  Hyukjin Chae ,  Daesung Hwang

IPC: H04L27/26 ,  H04W72/04 ,  H04L5/00

Abstract: Disclosed are a method for transmitting and receiving a signal between a terminal and a base station in a wireless communication system, and an apparatus for supporting the same. In particular, disclosed are: a method for transmitting and receiving a signal, including the uplink data, between a terminal and a base station when a sounding reference signal is configured within a time interval in which uplink data is scheduled; and an apparatus for supporting the same.

公开(公告)号：US10285067B2

公开(公告)日：2019-05-07

申请号：US15559392

申请日：2016-03-22

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Seonwook Kim

IPC: H04W16/14 ,  H04W74/08 ,  H04W84/12

Abstract: Provided are a method for transmitting data in an unlicensed band and a device using the same. A transmission node generates a signal to be transmitted in the unlicensed band, and performs listen before talk (LBT) according to the type of the generated signal. If a wireless medium is idle as a result of the LBT, the transmission node transmits the generated node in the unlicensed band.

公开(公告)号：US10219287B2

公开(公告)日：2019-02-26

申请号：US15573456

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: H04W72/12 ,  H04L1/18 ,  H04W76/28 ,  H04W24/10 ,  H04W74/00 ,  H04L5/00 ,  H04W74/08 ,  H04W28/06 ,  H04W88/06

Abstract: The present invention relates to a wireless access system supporting an unlicensed band and provides methods for performing a channel access process for transmitting different types of signals, and devices supporting the same. According to one embodiment of the present invention, a method for transmitting different types of signals in a wireless access system supporting an unlicensed band can comprise the steps of: performing a first channel process (CAP) for transmitting a first type of signal; and transmitting a transmission burst including the first type of signal through the unlicensed band if it is determined that a serving cell (SCell) of the unlicensed band is in an idle state after performing the first CAP. At this time, at least one of first parameters for performing the first CAP can be set to be value less than that of second parameters for performing a second CAP for transmitting a second type of signal.