公开(公告)号：US20180227106A1

公开(公告)日：2018-08-09

申请号：US15506206

申请日：2015-09-01

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook KIM ,  Hanbyul SEO ,  Kijun KIM ,  Jonghyun PARK ,  Joonkui AHN ,  Hyukjin CHAE

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

Abstract: The present invention relates to a wireless access system supporting an unlicensed band and, more particularly, to a method for measuring a channel state and an apparatus for supporting the same. One of methods for reporting channel state information (CSI) in a wireless access system supporting an unlicensed band may comprise: receiving an upper layer signal including channel state information-reference signal (CSI-RS) configuration information and channel state information-reference measurement (CSI-IM) configuration information for one or more transmission points (TP) included in a transmission opportunity (TxOP) duration; receiving a physical layer signal including TxOP configuration information that indicates which TP is included in the TxOP duration; measuring the CSI by using a CSI-RS resource and a CSI-IM resource for the TP indicated by the TxOP configuration information, on the basis of the CSI-RS configuration information and the CSI-IM configuration information; and reporting the measured CSI.

公开(公告)号：US20180205526A1

公开(公告)日：2018-07-19

申请号：US15743576

申请日：2016-07-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00

Abstract: Disclosed are a TRS receiving method comprising: receiving, from a base station, information indicating that a TRS is transmitted in a subframe; receiving the TRS transmitted in the subframe; and performing tracking by using the TRS, and a terminal performing, in the subframe to which the TRS is transmitted, the demodulation of data or not transmitting an acknowledgement/negative ACK (ACK/NACK) for the data.

公开(公告)号：US20180139779A1

公开(公告)日：2018-05-17

申请号：US15573435

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

CPC classification number: H04W74/085 ,  H04L1/00 ,  H04L1/18 ,  H04L1/1812 ,  H04L1/1887 ,  H04L5/00 ,  H04W28/0289 ,  H04W28/26 ,  H04W76/28

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：US20180027597A1

公开(公告)日：2018-01-25

申请号：US15545472

申请日：2016-01-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W84/12

CPC classification number: H04W74/0883 ,  H04W74/004 ,  H04W74/0808 ,  H04W74/0875 ,  H04W84/12

Abstract: A method and apparatus for uplink transmission in an unlicensed band are provided. The apparatus performs CCA from a start of the CCA in an unlicensed band to confirm whether a channel is idle or not. If the channel is idle or not, the apparatus transmits uplink data.

公开(公告)号：US20180027574A1

公开(公告)日：2018-01-25

申请号：US15543176

申请日：2016-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin LEE ,  Suckchel YANG ,  Joonkui AHN ,  Seonwook KIM

IPC: H04W72/08 ,  H04W36/30 ,  H04W24/10

CPC classification number: H04W72/085 ,  H04J11/0073 ,  H04L1/00 ,  H04L1/0038 ,  H04L1/0045 ,  H04L1/0046 ,  H04L1/0072 ,  H04L5/00 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0094 ,  H04W24/08 ,  H04W24/10 ,  H04W28/06 ,  H04W36/0055 ,  H04W36/0088 ,  H04W36/30 ,  H04W48/10 ,  H04W48/12 ,  H04W48/16 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1231 ,  H04W72/1289 ,  H04W76/27

Abstract: Provided are a method for operating user equipment (UE) having multiple serving cells set therefor in a wireless communication system and UE using the method. The method comprises: receiving a higher-level signal indicating a mapping between the values of the serving cell index (ServingCellID) of a serving cell and a carrier index field (CIF); and identifying the serving cell on the basis of the higher-level signal.

公开(公告)号：US20180020443A1

公开(公告)日：2018-01-18

申请号：US15541692

申请日：2016-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin LEE ,  Suckchel YANG ,  Joonkui AHN ,  Seonwook KIM

IPC: H04W72/04 ,  H04W48/10 ,  H04L5/00 ,  H04W48/16 ,  H04L1/00

Abstract: Provided are a method whereby user equipment (UE) transmits capability information in a wireless communication system and UE using the method. The method comprises: generating UE capability information indicating the capability of the UE; and transmitting the UE capability information to a base station, wherein the UE capability information includes blind decoding (BD) capability information indicating the number of times the UE can perform BD on a downlink control channel in one subframe.

公开(公告)号：US20170367106A1

公开(公告)日：2017-12-21

申请号：US15529736

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 ,  H04L5/00 ,  H04W24/10 ,  H04W72/04

CPC classification number: H04W72/1215 ,  H04B7/0626 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0092 ,  H04L5/0094 ,  H04L27/2601 ,  H04W16/14 ,  H04W24/10 ,  H04W72/04 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/12 ,  H04W72/1205 ,  H04W74/0808

Abstract: The present invention relates to a wireless access system that supports unlicensed bands, and relates to a method for reporting channel state information when a partial subframe (pSF) is formed. A method for user equipment (UE) reporting channel state information (CSI) in a wireless access system that supports unlicensed bands according to an embodiment of the present invention may comprise the steps of: receiving a downlink burst configured to an unlicensed band cell (U cell) supporting unlicensed bands as far as a certain subframe; measuring CSI with respect to the downlink burst; and reporting the measured CSI to a base station. In this regard, if a pSF is included in the downlink burst, the UE does not consider the pSF to be a valid downlink subframe for CSI measurement, and the pSF may be formed to have a smaller size than a general subframe.

公开(公告)号：US20170332267A1

公开(公告)日：2017-11-16

申请号：US15517510

申请日：2015-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook KIM ,  Joonkui AHN ,  Suckchel YANG ,  Hanbyul SEO ,  Seungmin LEE ,  Byounghoon KIM

IPC: H04W24/10 ,  H04W72/12

CPC classification number: H04W24/10 ,  H04L5/00 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0098 ,  H04L5/1469 ,  H04W72/1289

Abstract: The present invention relates to a wireless access system supporting an unlicensed band, and provides a method for reporting channel state information (CSI) on the basis of a CSI measurement set, and apparatuses for supporting the method. The method comprising receiving an upper layer signal including CSI subframe set configuration information through a primary cell (Pcell); measuring CSI on a secondary cell (Scell) in a preoccupation access period (PAP) or a non-PAP on the basis of the CSI subframe set configuration information; and transmitting a CSI report including the measured CSI. At this time, the non-PAP is set as a first CSI subframe set, the PAP is set as a second CSI subframe set, the first CSI subframe set and the second CSI subframe set are set in the terminal through the CSI subframe set configuration information, and the Scell can be configured in an unlicensed band.

公开(公告)号：US20170294958A1

公开(公告)日：2017-10-12

申请号：US15516006

申请日：2015-10-07

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui AHN ,  Byounghoon KIM ,  Seonwook KIM

IPC: H04B7/26 ,  H04L29/12 ,  H04B1/00 ,  H04B1/707 ,  H04W74/08 ,  H04W28/26

CPC classification number: H04B7/2634 ,  H04B1/0057 ,  H04B1/707 ,  H04L29/12254 ,  H04L61/2038 ,  H04W16/14 ,  H04W28/26 ,  H04W74/08 ,  H04W74/0816

Abstract: A communication method and device in an unlicensed band are provided. The device transmits a reservation signal for reserving a resource reservation period (RRP) which is to occupy a wireless channel for data transmission in an idle channel. The device transmits a data packet during the RRP.

公开(公告)号：US20170251463A1

公开(公告)日：2017-08-31

申请号：US15442585

申请日：2017-02-24

Applicant: LG ELECTRONICS INC.

Inventor： Kyuhwan KWAK ,  Suckchel YANG ,  Seonwook KIM

IPC: H04W72/04

CPC classification number: H04L5/0053 ,  H04L5/00 ,  H04L5/0055

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.