公开(公告)号：US20180206266A1

公开(公告)日：2018-07-19

申请号：US15741707

申请日：2015-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu BYUN ,  Joonkui AHN ,  Kijun KIM ,  Heejeong CHO ,  Genebeck HAHN ,  Eunjong LEE ,  Hyangsun YOU ,  Yunjung YI

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

CPC classification number: H04W72/1289 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04W72/0406 ,  H04W72/0446 ,  H04W72/1278 ,  H04W72/14

Abstract: Provided are a method and an apparatus for performing communication in a wireless communication system. Specifically, a control channel element is configured by using a resource element group in the same symbol of a resource block. The resource element group includes a plurality of resource elements in the same symbol. The resource block is transmitted in units of sTTIs which is set to be shorter than TTI. A control channel corresponding to the control channel element, and a data channel scheduled by the control channel are configured. The control channel and the data channel are transmitted in different frequency bands. Data is transmitted through the data channel.

公开(公告)号：US20180167923A1

公开(公告)日：2018-06-14

申请号：US15891743

申请日：2018-02-08

Applicant: LG Electronics Inc.

Inventor： Suckchel YANG ,  Yunjung YI ,  Hyangsun YOU ,  Joonkui AHN

IPC: H04W72/04 ,  H04L27/26 ,  H04W4/70 ,  H04W48/16 ,  H04W56/00 ,  H04W72/00

CPC classification number: H04W72/042 ,  H04L27/2627 ,  H04W4/70 ,  H04W48/16 ,  H04W56/0015 ,  H04W72/005

Abstract: The present invention relates to a wireless communication system. In particular, the present invention relates to a method and an apparatus for receiving data, by a terminal, in a wireless communication system, the method comprising the steps of: receiving a PDCCH; receiving a PDSCH corresponding to the PDCCH in a subframe including CSI-RS resource available in a cell; and demodulating the PDSCH. If a predetermined condition is satisfied, demodulation of the PDSCH is performed on the assumption that the PDSCH is not transmitted in the CSI-RS resource available in the cell, and if the predetermined condition is not satisfied, the demodulation of the PDSCH is performed on the assumption that the PDSCH can be transmitted in the CSI-RS resources available in the cell.

公开(公告)号：US20180152906A1

公开(公告)日：2018-05-31

申请号：US15879218

申请日：2018-01-24

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe KIM ,  Suckchel YANG ,  Yunjung YI ,  Joonkui AHN

IPC: H04W56/00 ,  H04W74/08 ,  H04J11/00 ,  H04W24/08

CPC classification number: H04W56/0005 ,  H04J11/0053 ,  H04W24/08 ,  H04W56/00 ,  H04W72/0406 ,  H04W72/1278 ,  H04W74/002 ,  H04W74/004 ,  H04W74/0833

Abstract: A method for supporting a secondary cell (SCell) addition in a radio access system that supports a carrier aggregation (CA), the method is performed by a primary cell (PCell) of a first timing advanced group (TAG) and includes acquiring, from a SCell of a second TAG, random access channel (RACH) resource information related to a random access procedure, wherein the random access procedure is to be performed at the SCell in order to add the SCell to the first TAG; transmitting, to a user equipment (UE), SCell related information, wherein the SCell related information includes a cell identifier of the SCell and the RACH resource information; and receiving, from the UE, a message reporting that the random access procedure at the SCell has failed, wherein the RACH resource information includes RACH parameters required to perform the random access procedure, and wherein a timing advanced value of the first TAG is different from a timing advanced value of the second TAG.

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：US20180035425A1

公开(公告)日：2018-02-01

申请号：US15782251

申请日：2017-10-12

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel YANG ,  Mingyu KIM ,  Joonkui AHN ,  Dongyoun SEO

IPC: H04W72/04 ,  H04B7/06 ,  H04L5/00 ,  H04W24/10

CPC classification number: H04W72/0413 ,  H04B7/0626 ,  H04L5/001 ,  H04L5/0055 ,  H04L5/0057 ,  H04W24/10 ,  H04W72/0453

Abstract: A method for Channel State Information (CSI) reporting in a wireless access system which supports a carrier aggregation, the method performed by a user equipment (UE) includes measuring a first type CSI for a first component carrier (CC) of two or more downlink (DL) CCs; measuring a second type CSI for a second CC of the two or more downlink (DL) CCs; and reporting the first type CSI only, when a collision of a report of the first type CSI with a report of the second CSI type is occurred in a same subframe, wherein the first type CSI includes (1) a Rank Indicator (RI) and a first Precoding Matrix Indicator (PMI), (2) only the RI, or (3) only the first PMI, and wherein the second type CSI includes (1) only a SubBand (SB) CQI or (2) the SB-CQI and a second PMI.

公开(公告)号：US20180007637A1

公开(公告)日：2018-01-04

申请号：US15704956

申请日：2017-09-14

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel YANG ,  Joonkui AHN ,  Dongyoun SEO ,  Yunjung YI

IPC: H04W52/14 ,  H04L5/00 ,  H04L1/18 ,  H04W52/58 ,  H04W52/34 ,  H04W52/32 ,  H04W52/28 ,  H04L27/26 ,  H04L5/14 ,  H04W72/04 ,  H04W52/36 ,  H04W88/02

CPC classification number: H04W52/146 ,  H04L1/1671 ,  H04L1/18 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/00 ,  H04L5/001 ,  H04L5/0055 ,  H04L5/14 ,  H04L27/2607 ,  H04W52/281 ,  H04W52/325 ,  H04W52/34 ,  H04W52/365 ,  H04W52/367 ,  H04W52/58 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/0453 ,  H04W88/02

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for a terminal controlling uplink power in a carrier aggregation-based wireless communication system, comprising the steps of: configuring a first cell and a second cell; transmitting a first PUCCH signal from subframe #n in the first cell; and transmitting a second PUCCH signal from subframe #n in the second cell, wherein when the sum of transmit power of the first PUCCH signal and transmit power of the second PUCCHJ signal exceeds a predetermined maximum transmit power configured to the terminal, the transmit power of the PUCCH signal having a lower priority from among the first UCCH signal and the second PUCCH signal is reduced or the transmission is dropped.

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.

公开(公告)号：US20170367092A1

公开(公告)日：2017-12-21

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: H04W72/04 ,  H04L5/00 ,  H04W72/12

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：US20170367025A1

公开(公告)日：2017-12-21

申请号：US15537367

申请日：2015-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui AHN ,  Yoonoh YANG ,  Hakseong KIM

IPC: H04W36/36 ,  H04W74/08

CPC classification number: H04W36/36 ,  H04W36/0061 ,  H04W36/0069 ,  H04W74/08

Abstract: A method for cell switching in an unlicensed band and an apparatus using same are provided. The apparatus receives cell configuration information related to a plurality of candidate cells operating in an unlicensed band, and receives a beacon signal designating at least one of the plurality of candidate cells as a target operating cell in which the apparatus is to operate. The apparatus is switched to the target operating cell.