公开(公告)号：US20200036482A1

公开(公告)日：2020-01-30

申请号：US16491670

申请日：2017-03-08

Applicant: LG Electronics Inc.

Inventor： Changhwan Park ,  Seonwook Kim ,  Hanjun Park ,  Joonkui Ahn ,  Suckchel Yang ,  Seunggye Hwang

IPC: H04L1/18 ,  H04L1/16 ,  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. More particularly, disclosed is an explanation for a method of transmitting and receiving a signal between a terminal and a base station according to a new HARQ procedure which differs from a Hybrid Automatic Repeat reQuest (HARQ) procedure supported in a conventional wireless communication system.

公开(公告)号：US20200015252A1

公开(公告)日：2020-01-09

申请号：US16571357

申请日：2019-09-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04W74/08 ,  H04W74/00

Abstract: The present invention relates to a wireless access system supporting an unlicensed band, various methods for adjusting a contention window size, methods for performing a carrier sensing process in a single engine and a multi-engine, and an apparatus supporting the same. As one embodiment of the invention, a method for adjusting a contention window size (CWS) in a wireless access system supporting an unlicensed band may comprise: a step of setting a contention window size (CWS) necessary for performing a channel access process for each of priority classes; a step of performing a channel access process for a particular priority class in a channel in an unlicensed band on the basis of the set CWS; a step of performing a downlink transmission related to the particular priority class if it is determined that the channel in the unlicensed band is in an idle state as a result of the channel access process; and a step of making adjustments for all CWS' of priority classes if a triggering event, which relates to a downlink transmission and increases or reduces the CWS for the particular priority class, occurs.

公开(公告)号：US10531486B2

公开(公告)日：2020-01-07

申请号：US15533953

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A method for transmitting an uplink signal in an unlicensed band in a wireless communication system according to an embodiment of the present invention, which is performed by a terminal, may comprises the steps of: performing channel sensing for transmitting data and a sounding reference signal in a first time interval; transmitting the sounding reference signal in a second time interval immediately following the first time interval when a channel is in a non-occupied state according to a result of the channel sensing and transmission of the sounding reference signal is scheduled; and transmitting a preliminary signal or transmitting uplink data in the second time interval immediately following the first time interval when a channel is in a non-occupied state according to a result of the channel sensing and only transmission of the uplink data is scheduled.

公开(公告)号：US10477565B2

公开(公告)日：2019-11-12

申请号：US15531306

申请日：2015-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Seungmin Lee ,  Kijun Kim ,  Suckchel Yang ,  Hanbyul Seo ,  Jonghyun Park ,  Hyangsun You

IPC: H04W72/12 ,  H04B7/06 ,  H04W72/04 ,  H04L5/00 ,  H04W24/10 ,  H04W16/14 ,  H04L27/26 ,  H04W74/08

Abstract: The present invention relates to a method for a terminal receiving an enhanced physical downlink control channel (EPDCCH) in a wireless access system supporting an unlicensed band, and the method may comprise the steps of: receiving, through an unlicensed-band cell (Ucell) configured in an unlicensed band, an EPDCCH comprising control information for scheduling the Ucell; and, on the basis of the control information, receiving downlink data from the Ucell. Here, if the EPDCCH is transmitted through a partial subframe (pSF), enhanced resource element groups (EREGs) constituting the EPDCCH are indexed from the start symbol of the pSF, and the pSF has a smaller size than one subframe, and the starting position of the pSF may not correspond to the subframe boundary of a primary cell (Pcell) configured in a licensed band.

公开(公告)号：US10454605B2

公开(公告)日：2019-10-22

申请号：US15772772

申请日：2016-11-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04J11/00 ,  H04L27/26 ,  H04L5/00 ,  H04W16/14 ,  H04W24/08 ,  H04W72/04 ,  H04W88/06 ,  H04L1/00

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：US10448412B2

公开(公告)日：2019-10-15

申请号：US15543197

申请日：2016-01-12

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/08 ,  H04L1/00 ,  H04L5/00 ,  H04W48/10 ,  H04W24/08 ,  H04W36/30 ,  H04W48/16 ,  H04W72/04 ,  H04W76/27 ,  H04W72/12 ,  H04W24/10 ,  H04J11/00 ,  H04W48/12 ,  H04W36/00 ,  H04W28/06

Abstract: Provided are a method whereby user equipment (UE) receives downlink control information in a wireless communication system and UE using the method. The method comprises: receiving configuration information (MUCC-DCI configuration information) on multi-carrier downlink control information (MUCC-DCI) that may include pieces of scheduling information related to multiple serving cells; and performing blind decoding (BD) on the MUCC-DCI in a shared search space (shared SS) determined on the basis of the MUCC-DCI configuration information.

公开(公告)号：US20190239171A1

公开(公告)日：2019-08-01

申请号：US16318411

申请日：2017-08-08

Applicant: LG Electronics Inc.

Inventor： Joonkui Ahn ,  Daesung Hwang ,  Hyunsoo Ko ,  Yunjung Yi ,  Hyunho Lee ,  Seonwook Kim ,  Suckchel Yang ,  Hanjun Park

IPC: H04W52/36 ,  H04W72/04

CPC classification number: H04W52/365 ,  H04W52/36 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/12 ,  H04W74/08

Abstract: Provided are a method and a device for reporting a power headroom in a wireless communication system. The device receives initial downlink control information (DCI) for physical uplink shard channel (PUSCH) transmission in a first subframe and receives triggering DCI in a second subframe. The device calculates a power headroom on the assumption that the PUSCH transmission is not performed.

公开(公告)号：US10333674B2

公开(公告)日：2019-06-25

申请号：US15442585

申请日：2017-02-24

Applicant: LG ELECTRONICS INC.

Inventor： Kyuhwan Kwak ,  Suckchel Yang ,  Seonwook Kim

IPC: H04W4/00 ,  H04L5/00

Abstract: In the present invention, a method for transmitting uplink control information in a wireless communication system and an apparatus for supporting the same are disclosed. Particularly, a method for transmitting uplink control information performed by a terminal in a wireless communication system may comprise receiving, from a base station, a message comprising a specific symbol index indicating a starting point of the uplink control channel region of the terminal and a specific comb index indicating a comb structure of the uplink control channel region of the terminal and transmitting, to the base station, uplink control information by using at least one resource element corresponding to the received specific symbol index and the received specific comb index, wherein the specific comb index is allocated according to the number of symbols configuring the uplink control channel region of the terminal.

公开(公告)号：US10306662B2

公开(公告)日：2019-05-28

申请号：US15529750

申请日：2015-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Seungmin Lee ,  Kijun Kim ,  Suckchel Yang ,  Hanbyul Seo ,  Jonghyun Park ,  Hyangsun You

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W24/10 ,  H04W16/14 ,  H04L27/26 ,  H04W74/08

Abstract: The present invention relates to, in a wireless access system supporting an unlicensed band, methods for configuring and scheduling a partial subframe (pSF) and devices for supporting same. A method for receiving data through a cell (U cell) configured in an unlicensed band in a wireless access system for supporting an unlicensed band comprises the steps of: a terminal receiving control information from a base station through a primary cell (P cell) which is configured in a licensed band; and the terminal receiving, on the basis of the control information, downlink data from the base station through an unlicensed band cell (U cell) which is configured in an unlicensed band, wherein, if cross-carrier scheduling is configured in the terminal, the terminal not anticipating, as the subframe for receiving the downlink data, a partial subframe (pSF) which is transmitted in a state of having the first part of symbol emptied, wherein the pSF is configured to be smaller than one subframe.

公开(公告)号：US20190150174A1

公开(公告)日：2019-05-16

申请号：US16248365

申请日：2019-01-15

Applicant: LG Electronics Inc.

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

IPC: H04W72/12

Abstract: The present invention discloses a method for transmitting or receiving ACK information between a UE and a BS in a wireless communication system and an apparatus for supporting the same. According to one embodiment applicable to the present invention, the UE may transmit a first type channel configured with 1 or 2 symbols and a second type channel configured with 4 or more symbols by configuring a transient period between first type channel transmission and second type channel transmission within a time period corresponding to the second type channel if the first type channel and the second type channel are continuous in a time domain.