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.

公开(公告)号：US20190052382A1

公开(公告)日：2019-02-14

申请号：US16160331

申请日：2018-10-15

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook KIM ,  Seungmin LEE ,  Kijun KIM ,  Hanbyul SEO ,  Byounghoon KIM

IPC: H04B17/345 ,  H04W24/10 ,  H04W72/12

CPC classification number: H04B17/345 ,  H04L5/00 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0073 ,  H04L5/0094 ,  H04W16/14 ,  H04W24/10 ,  H04W72/1289 ,  H04W76/15

Abstract: A method for transmitting channel state information (CSI) on a transmission opportunity (TxOP) duration by a user equipment (UE) in a wireless communication system supporting a unlicensed band, includes measuring CSI of the TxOP duration based on CSI interference measurement (CSI-IM) and/or CSI reference signal (CSI-RS) in one or more time intervals via the unlicensed band, wherein the one or more time intervals are determined based on a starting point of the TxOP duration; and transmitting the CSI to a base station.

公开(公告)号：US20180352443A1

公开(公告)日：2018-12-06

申请号：US15777871

申请日：2016-11-24

Applicant: LG ELECTRONICS INC.

Inventor： Daesung HWANG ,  Seungmin LEE ,  Hanjun PARK ,  Byounghoon KIM

IPC: H04W16/26 ,  H04W24/08 ,  H04W40/20 ,  H04W64/00

Abstract: To achieve the above described objective, a disclosure of the present specification provides a method in which a cell having mobility provides a communication service. The method may comprise the steps of: obtaining, by the cell having mobility, first channel state information associated with a departure point node that is to transmit data; obtaining, by the cell having mobility, second channel state information associated with a destination node that is to receive data; and determining, by the cell having mobility, a location where the cell is to be located at a time point for data communication relay between the departure point node and the destination node on the basis of the first channel state information and the second channel state information. In this instance, the cell having mobility can move in the horizontal direction and the vertical direction from the surface of the earth.

公开(公告)号：US20180241459A1

公开(公告)日：2018-08-23

申请号：US15525347

申请日：2015-11-10

Applicant: LG ELECTRONICS INC. ,  RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hojin SONG ,  Wan CHOI ,  Dongin KIM ,  Hanbyul SEO ,  Byounghoon KIM

IPC: H04B7/155 ,  H04B7/0452 ,  H04W88/04 ,  H04W28/14 ,  H04L1/18 ,  H04W72/04

CPC classification number: H04B7/15507 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/15521 ,  H04L1/1812 ,  H04L1/1887 ,  H04W28/14 ,  H04W72/0406 ,  H04W88/04

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting a content using a cache memory, and a method for transmitting a content using a cache memory by a relay node according to the present invention may comprise the steps of: storing a first packet among a plurality of the packets constituting the content in the cache memory; decoding a second packet among the plurality of packets constituting the content; and when the second packet has been successfully decoded, combining the first packet and the second packet and transmitting the combined packet to a terminal, wherein the second packet is not already stored in the cache memory.

公开(公告)号：US20180184433A1

公开(公告)日：2018-06-28

申请号：US15128910

申请日：2015-05-18

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Kijun KIM ,  Joonkui AHN ,  Byounghoon KIM ,  Hanjun PARK ,  Hyunho Lee

IPC: H04W72/08 ,  H04J11/00 ,  H04L5/00

CPC classification number: H04W72/082 ,  H04J11/00 ,  H04J11/0023 ,  H04L5/0048

Abstract: The present invention relates to a wireless communication system. A method for a terminal for receiving a signal by means of NAICS (Network Assisted Interference Cancellation and Suppression) in a wireless communication system supporting a carrier aggregation according to one embodiment of the present invention comprises the steps of: transmitting terminal capability information comprising band combination information indicating the band combination supported by the terminal on the carrier aggregation; and receiving the signal on the basis of the terminal capability information, wherein the band combination information may comprise a number for the maximum number of component carriers (CC) supporting the NAICS for the band combination.

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：US20180070192A1

公开(公告)日：2018-03-08

申请号：US15691481

申请日：2017-08-30

Applicant: LG ELECTRONICS INC.

Inventor： Sangrim LEE ,  Byounghoon KIM

IPC: H04W4/00 ,  H04W72/04 ,  H04L27/26 ,  H04W52/02 ,  H04W72/08

CPC classification number: H04W4/70 ,  H04L27/2628 ,  H04W52/0225 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/085 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/25

Abstract: A method for transmitting an uplink signal by a user equipment on a carrier where multiple subbands, each having different subcarrier spacing, are multiplexed may include: generating M modulated symbols by modulating uplink data; repeating the M modulated symbols in both upper and lower frequency blocks, which are adjacent to a predetermined frequency block for the M modulated symbols and have the same size as that of the predetermined frequency block; obtaining a tapered pulse by multiplying a total of 3M modulated symbols, which are a result of the repetition, and a total of 3M windowing weight values in an element-wise manner; and transmitting the tapered pulse after performing an inverse Fourier transform, wherein the user equipment can restrict leakage power to subbands unsynchronized with its operating subband to be equal to or lower than a threshold by adjusting a tapering length of the tapered pulse.

公开(公告)号：US20180035416A1

公开(公告)日：2018-02-01

申请号：US15654603

申请日：2017-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Yunjung YI ,  Byounghoon KIM ,  Hanbyul SEO ,  Hyunsoo KO ,  Kijun KIM

IPC: H04W72/04

CPC classification number: H04W72/044 ,  H04L5/0037 ,  H04L5/0091 ,  H04L5/0092 ,  H04W72/0406 ,  H04W88/02

Abstract: A method and apparatus for operating in a new radio access technology (NR) carrier in a wireless communication system is provided. A user equipment (UE) receives an indication of a system bandwidth and a center frequency of the system bandwidth from a network, and operates subbands in the NR carrier according to the indication. The center frequency of the system bandwidth corresponds to a direct current (DC) subcarrier.

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.