公开(公告)号：US20190053265A1

公开(公告)日：2019-02-14

申请号：US16086291

申请日：2017-03-28

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook KIM ,  Joonkui AHN ,  Suckchel YANG ,  Hanjun PARK

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

Abstract: Disclosed in the present invention are a method for a terminal transmitting an uplink control channel to a base station in a licensed assisted access (LAA) system in which the base station or the terminal performs a listen-before-talk (LBT)-based signal transmission, and a device supporting same. To this end, the terminal receives, from the base station, downlink control information for scheduling uplink signal transmission from a plurality of unlicensed bands in an Nth subframe, and transmits uplink control information from the Nth subframe through at least one unlicensed band which has been successful in LBT from among the plurality of unlicensed bands, when the uplink control information to be transmitted us present in the Nth subframe.

公开(公告)号：US20190045526A1

公开(公告)日：2019-02-07

申请号：US15760604

申请日：2016-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin LEE ,  Hanbyul SEO ,  Hyukjin CHAE ,  Seonwook KIM

IPC: H04W72/12 ,  H04W4/40 ,  H04B17/327 ,  H04W72/02

Abstract: Provided are a resource selection method for a vehicle-to-everything (V2X) operation of a terminal in a wireless communication system, and a terminal using the method. The method comprises: monitoring physical sidelink control channels (PSCCHs) for other terminals in a first subframe; and transmitting, in a second subframe, a V2X message by using a resource which is not overlapped with a resource scheduled by the PSCCH for another terminal.

公开(公告)号：US20180359772A1

公开(公告)日：2018-12-13

申请号：US15780604

申请日：2016-12-28

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun PARK ,  Joonkui AHN ,  Seonwook KIM ,  Suckchel YANG ,  Yunjung YI ,  Daesung HWANG

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

Abstract: The present invention provides a method for transmitting and receiving an uplink signal between a base station and a terminal in a licensed assisted access (LAA) system in which the base station or the terminal performs signal transmission on the basis of listen-before-talk (LBT), and an apparatus for supporting the same. More specifically, the present invention provides a method for transmitting an uplink signal by the base station and the terminal according to a scheduling type indicated to the terminal by the base station, and an apparatus for supporting the same.

公开(公告)号：US20180331807A1

公开(公告)日：2018-11-15

申请号：US16065654

申请日：2017-11-06

Applicant: LG Electronics Inc.

Inventor： Seonwook KIM ,  Suckchel YANG ,  Yunjung YI ,  Jaehyung KIM ,  Changhwan PARK ,  Joonkui AHN

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04B1/7156 ,  H04J1/14

CPC classification number: H04L5/0053 ,  H04L5/0048 ,  H04W72/04

Abstract: Disclosed are a method for transmitting and receiving a physical uplink control channel between a terminal and a base station in a wireless communication system, and an apparatus for supporting the same. More particularly, disclosed are a method for transmitting and receiving a physical uplink control channel through a plurality of channels between a terminal and a base station in a wireless communication system supporting transmission and reception of a physical uplink control channel through a single symbol, and an apparatus for supporting the same.

公开(公告)号：US20180310332A1

公开(公告)日：2018-10-25

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

CPC classification number: H04W72/14 ,  H04W28/26 ,  H04W72/1268 ,  H04W72/1284 ,  H04W74/0816

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：US20180288790A1

公开(公告)日：2018-10-04

申请号：US15753809

申请日：2016-08-19

Applicant: LG ELECTRONICS INC

Inventor： Seonwook KIM ,  Joonkui AHN ,  Hanjun PARK ,  Byounghoon KIM

IPC: H04W72/12 ,  H04W74/08

Abstract: The present invention relates to a radio access system that supports an unlicensed band, and provides methods for controlling a contention window size (CWS) for performing uplink LBT, methods for effectively utilizing a radio resource even when an uplink data transmission fails, and apparatuses supporting the same. As an embodiment of the present invention, a method for controlling a contention window size (CWS) for transmitting uplink data in a radio access system supporting an unlicensed band by a user equipment, may comprise the steps of: receiving, from an evolved node B, a radio signal including CSW control information indicating information required for controlling a CWS; controlling the CWS on the basis of the CWS control information; performing a listen before talk (LBT) process using the controlled CWS; and transmitting uplink data when a result of the LBT process shows that an unlicensed band is in an idle state.

公开(公告)号：US20180234965A1

公开(公告)日：2018-08-16

申请号：US15751144

申请日：2016-08-12

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui AHN ,  Hanjun PARK ,  Seonwook KIM

IPC: H04W72/04 ,  H04W74/08

Abstract: Provided are a method and an apparatus for transmitting data in an unlicensed band. The apparatus determines whether a wireless medium is idle by performing a clear channel assessment (CCA) during a plurality of continuous CCA slots in the unlicensed band. When the wireless medium is idle, the apparatus transmits a reservation signal to occupy the wireless medium during a plurality of continuous reservation slots until transmission of a data burst begins.

公开(公告)号：US20180115992A1

公开(公告)日：2018-04-26

申请号：US15573060

申请日：2016-05-12

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun PARK ,  Joonkui AHN ,  Seonwook KIM

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

Abstract: One embodiment of the present invention relates to a method for channel sensing within an unlicensed band in a wireless communication system. The method is performed by a transmission node which performs the channel sensing, and may comprises the steps of: receiving, from a control node, a control signal including data transfer indication; receiving, from the control node, an indicator indicating an interval at which a channel-sensing related operation associated with the data transfer indication is performed; and performing the channel-sensing related operation for a length of time corresponding to the indicator before a data transfer start time according to the data transfer indication, or, on the basis of the time at which the control signal is received, from after a length of time corresponding to the indicator, until before the data transfer start time according to the data transfer indication.

公开(公告)号：US20180049221A1

公开(公告)日：2018-02-15

申请号：US15552431

申请日：2016-03-04

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun PARK ,  Joonkui AHN ,  Seungmin LEE ,  Seonwook KIM

IPC: H04W72/12 ,  H04W48/20 ,  H04W72/10

CPC classification number: H04W72/1247 ,  H04W48/16 ,  H04W48/20 ,  H04W72/10 ,  H04W74/006 ,  H04W74/08 ,  H04W74/0808

Abstract: A method for transmitting a signal in an unlicensed band in a wireless communication system according to one embodiment of the present invention is performed by a transmission node and comprising the steps of: receiving information about additional channel sensing from a center node; performing channel sensing for signal transmission during a first time period; when the channel is in an unoccupied state as a result of the channel sensing, performing additional channel sensing during a second time period immediately following the first time period according to the information about the additional channel sensing, the length of the second time period being determined according to a transmission priority level of the transmission node; and when the channel is in an unoccupied state as a result of the additional channel sensing, transmitting a signal.

公开(公告)号：US20170374679A1

公开(公告)日：2017-12-28

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

CPC classification number: H04W74/04 ,  H04L5/00 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/0051 ,  H04W72/1231 ,  H04W74/004 ,  H04W74/0808

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.