公开(公告)号：US20190159249A1

公开(公告)日：2019-05-23

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: H04W74/08 ,  H04W56/00 ,  H04W16/14

CPC classification number: H04W74/0808 ,  H04W16/14 ,  H04W56/00 ,  H04W56/001 ,  H04W56/0045 ,  H04W74/08

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：US20190159248A1

公开(公告)日：2019-05-23

申请号：US16190952

申请日：2018-11-14

Applicant: LG Electronics Inc.

Inventor： Seokmin SHIN ,  Changhwan PARK ,  Seonwook KIM ,  Joonkui AHN ,  Suckchel YANG ,  Seunggye HWANG

IPC: H04W74/08 ,  H04L27/00 ,  H04L27/26 ,  H04L5/14

Abstract: Provided are a method for transmitting a random access preamble in a narrowband-IoT system supporting time division duplexing and an apparatus therefor.Specifically, a method for transmitting a narrowband physical random access channel (NPRACH) preamble by a user equipment in a narrowband-Internet of things (NB-IoT) system supporting time division duplexing may include: receiving, from a base station, configuration information related to an uplink-downlink configuration; and transmitting, to the base station, the NPRACH preamble configured by considering the uplink-downlink configuration.

公开(公告)号：US20190150194A1

公开(公告)日：2019-05-16

申请号：US16242804

申请日：2019-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook KIM ,  Joonkui AHN ,  Suckchel YANG ,  Kijun KIM ,  Byounghoon KIM ,  Hanbyul SEO ,  Hanjun PARK ,  Daesung HWANG

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

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：US20190150130A1

公开(公告)日：2019-05-16

申请号：US16248400

申请日：2019-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel YANG ,  Joonkui AHN ,  Seungmin LEE ,  Hanbyul SEO

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

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：US20190141733A1

公开(公告)日：2019-05-09

申请号：US16096612

申请日：2017-04-26

Applicant: LG ELECTRONICS INC.

Inventor： Eunsun KIM ,  Hyunsoo KO ,  Kijun KIM ,  Joonkui AHN ,  Suckchel YANG ,  Yunjung YI

IPC: H04W72/12 ,  H04W72/04

CPC classification number: H04W72/1289 ,  H04W72/0446 ,  H04W84/12

Abstract: First downlink scheduling information for a first subframe and second downlink scheduling information for a second subframe can be transmitted and received in the first subframe. A first type downlink data channel can be transmitted and received in the first subframe according to the first downlink scheduling information, and a second type downlink data channel can be transmitted and received in the second subframe according to the second downlink scheduling information. Each of the first subframe and the second subframe may comprise a downlink control region and a data region in a time domain. The first downlink scheduling information and the second downlink scheduling information can be transmitted and received in the downlink control region of the first subframe. The first type downlink data channel is transmitted and received in the data area of the first subframe, and the second type downlink data channel can be transmitted and received in the downlink control region of the second subframe. The data area of the first subframe and the downlink control area of the second subframe can be continuous with each other.

公开(公告)号：US20190141696A1

公开(公告)日：2019-05-09

申请号：US16065744

申请日：2017-07-26

Applicant: LG Electronics Inc.

Inventor： Seonwook KIM ,  Yunjung YI ,  Joonkui AHN ,  Hanbyul SEO ,  Suckchel YANG ,  Kijun KIM

IPC: H04W72/04 ,  H04W4/70 ,  H04L5/00 ,  H04L1/18 ,  H04L5/14 ,  H03M13/13

Abstract: Disclosed are a method for transmitting uplink control information by a terminal in a wireless communication system and a device for supporting the same. More particularly, disclosed are a method for transmitting, by a terminal, uplink control information corresponding to downlink signals received from two base stations communicating with the terminal by different schemes when the two base stations are connected with the terminal by a dual connectivity method, and a device for supporting the same.

公开(公告)号：US20190110220A1

公开(公告)日：2019-04-11

申请号：US16215082

申请日：2018-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun PARK ,  Joonkui AHN ,  Yunjung YI ,  Kijun KIM ,  Hyangsun YOU

IPC: H04W24/08 ,  H04L5/00 ,  H04W72/04 ,  H04W16/32

Abstract: A method for performing, by a user equipment (UE), a measurement a reference signal (RS) in a wireless communication system, includes receiving, from a base station (BS), RS Measurement Timing Configuration information in relation to a RS measurement time in order to perform a measurement using the RS; receiving the RS from one or more cells in a specific carrier frequency based on the RS Measurement Timing Configuration information; performing a measurement using the RS; and reporting the measurement result to the BS.

公开(公告)号：US20190090202A1

公开(公告)日：2019-03-21

申请号：US16196449

申请日：2018-11-20

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui AHN ,  Suckchel YANG

IPC: H04W52/14 ,  H04W52/54 ,  H04W52/58 ,  H04W52/34 ,  H04W72/04 ,  H04W72/12

Abstract: A method for controlling uplink transmission power in a wireless communication system, includes transmitting transmit power command (TPC) monitoring information to adjust an uplink transmission power for a first physical uplink control channel (PUCCH) cell and a second PUCCH cell, the TPC monitoring information including a first TPC index assigned to the first PUCCH cell and a second TPC index assigned to the second PUCCH cell, wherein the base station is configured with dual connectivity in which the base station manages at least one set of a first set of serving cells and a second set of serving cells, wherein the first PUCCH cell is only one cell which is capable of transmitting a first PUCCH in the first set of serving cells, wherein the second PUCCH cell is only one cell which is capable of transmitting a second PUCCH in the second set of serving cells; and transmitting a TPC payload on a downlink control channel.

公开(公告)号：US20190082397A1

公开(公告)日：2019-03-14

申请号：US16185989

申请日：2018-11-09

Applicant: LG ELECTRONICS INC.

Inventor： Daesung HWANG ,  Yunjung YI ,  Joonkui AHN

IPC: H04W52/32 ,  H04W52/02 ,  H04W52/36 ,  H04W52/34

Abstract: One disclosure of the present specification provides a method for receiving downlink data in a wireless communication system supporting 256 QAM. The method for receiving downlink data in a wireless communication system supporting 256 QAM comprises the steps of: receiving configuration information about power back-off; receiving downlink data transmitted on the basis of the configuration information about power back-off; and demodulating the received downlink data on the basis of the configuration information about power back-off, wherein the configuration information about power back-off may comprise information related to at least one of the following: whether to apply power back-off, the reduced amount of power of downlink data by power back-off, a frame index to which power back-off is applied, a subframe index and a resource to which power back-off is applied.

公开(公告)号：US20190053274A1

公开(公告)日：2019-02-14

申请号：US16071744

申请日：2017-01-26

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook KIM ,  Joonkui AHN ,  Byounghoon KIM

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/12 ,  H04W74/00 ,  H04W48/16 ,  H04W16/14

Abstract: Disclosed are a method for transmitting a downlink signal by a terminal from a base station, in a licensed assisted access (LAA) system for execution of listen-before-talk (LBT) based signal transmission by a base station or a terminal, and a device for supporting same. More particularly, even if the terminal does not receive from the base station information which indicates that from N−1th subframe to Nth subframe is a partial subframe (a subframe configuration in which a downlink signal is transmitted only on some of the symbols of a subframe), the terminal receives a physical downlink control channel (PDCCH) comprising uplink scheduling information.