公开(公告)号：US10531488B2

公开(公告)日：2020-01-07

申请号：US15751840

申请日：2016-08-11

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Joonkui Ahn ,  Seonwook Kim ,  Kijun Kim ,  Byounghoon Kim ,  Hanbyul Seo

IPC: H04W28/04 ,  H04W74/08 ,  H04B7/06 ,  H04W16/28 ,  H04W16/14

Abstract: According to one embodiment of the present invention, a method by which a wireless communication device including a plurality of antennas transmits and receives a wireless signal in an unlicensed band in a wireless communication system comprises the steps of: performing a clear channel assessment (CCA) by using the plurality of antennas for a predetermined time interval in the unlicensed band; and transmitting the wireless signal through the unlicensed band when it is determined that the unlicensed band is in an idle state in which the unlicensed band is not occupied by other wireless communication devices, wherein the step of performing the CCA can comprise the steps of: acquiring one reference value by using energy sensing indicators (ESIs) measured through the plurality of antennas; and comparing the reference value with a CCA threshold value so as to determine whether the unlicensed band is in an idle state.

公开(公告)号：US10531322B2

公开(公告)日：2020-01-07

申请号：US15981002

申请日：2018-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Inkwon Seo

IPC: H04L5/00 ,  H04W72/04 ,  H04W24/08 ,  H04B17/345 ,  H04W72/08

Abstract: A method of measuring interference by a user equipment in a wireless communication system includes receiving a first interference measurement resource configuration for a first downlink subframe set and a second interference measurement resource configuration for a second downlink subframe set, being used to configure interference measurement resource for one channel state estimation process, receiving a usage change message for changing a usage of a radio resource, determining validity of the interference measurement resource as valid if the interference measurement resource exists in a transient period when the usage of the radio resource is changed from downlink to uplink by the usage change message, or if the interference measurement resource exists after the transient period when the usage of the radio resource is changed from uplink to downlink by the usage change message, and measuring interference on the interference measurement resource if the interference measurement resource is determined as valid.

公开(公告)号：US10530627B2

公开(公告)日：2020-01-07

申请号：US15541355

申请日：2016-01-04

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Yunjung Yi

IPC: H04L27/26 ,  H04W56/00 ,  H04W72/04 ,  H04W8/00 ,  H04W4/70 ,  H04L5/00 ,  H04W76/14 ,  H04W76/27 ,  H04L5/14

Abstract: Provided are a method for performing device-to-device (D2D) operation of a terminal in a wireless communication system, and a terminal using the same. The method is characterized by applying frequency synchronization on the basis of a primary cell of a first frequency, applying time synchronization on the basis of a non-serving cell of a second frequency for which D2D operation is to be performed, and performing the D2D operation on the basis of the frequency synchronization and the time synchronization.

公开(公告)号：US10511364B2

公开(公告)日：2019-12-17

申请号：US16318114

申请日：2017-08-03

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Hanbyul Seo ,  Kijun Kim ,  Jiwon Kang ,  Seungmin Lee ,  Haewook Park ,  Jonghyun Park ,  Suckchel Yang ,  Hyunsoo Ko

IPC: H04B7/02 ,  H04B7/0456 ,  H04L5/00 ,  H04W88/08 ,  H04W88/02

Abstract: The present invention relates to a method for transmitting, by a terminal, a signal in a wireless communication system supporting Multiple Input Multiple Output (MIMO) and an apparatus therefor. Specifically, the method comprises the steps for: generating precoded sounding reference signals (SRS) on the basis of N antenna elements combined with M transceivers (where M and N are natural numbers, M

公开(公告)号：US10476726B2

公开(公告)日：2019-11-12

申请号：US15773533

申请日：2016-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Hyukjin Chae ,  Hanbyul Seo

IPC: H04L27/26 ,  H04W24/10 ,  H04W72/04 ,  H04W4/70 ,  H04W4/46 ,  H04L5/00

Abstract: The present invention relates to a method for electricity measurement by a vehicle-to-vehicle (V2V) device for V2V communications in a wireless communication system and to a device therefor. In particular, the present invention comprises the steps of: receiving at least one synchronization signal for V2V through a physical sidelink broadcast channel (PSBCH); and measuring received electricity from said at least one synchronization signal if the ID of said at least one synchronization signal is linked to a demodulation reference signal (DMRS) sequence having, applied thereto, an orthogonal cover code (OCC) having one fixed value, wherein the measurement is performed by means of averaging for each ID of said at least one synchronization signal.

公开(公告)号：US10462692B2

公开(公告)日：2019-10-29

申请号：US15564422

申请日：2016-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Seungmin Lee

IPC: H04W24/10 ,  H04W24/02 ,  H04W24/08 ,  H04B17/318 ,  H03M13/09 ,  H04L25/02 ,  H04W72/12 ,  H04W48/16 ,  H04L1/00 ,  H04W88/04 ,  H04L5/00 ,  H04W48/20 ,  H04W84/04

Abstract: An embodiment of the present invention relates to a method for performing measurement by a terminal in a wireless communication system, the method comprising the steps of: receiving D2D signals transmitted by a plurality of relay terminals; and performing measurement using at least one signal among the D2D signals, wherein the D2D signal subjected to the measurement is a D2D signal having a valid CRC.

公开(公告)号：US10461906B2

公开(公告)日：2019-10-29

申请号：US15836155

申请日：2017-12-08

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun Park ,  Kijun Kim ,  Hanbyul Seo

IPC: H04W4/00 ,  H04L5/00 ,  H04B7/0417 ,  H04B7/0491 ,  H04B7/06 ,  H04W24/10 ,  H04W88/08

Abstract: Disclosed is a method for transmitting and receiving a signal, by a terminal, in a wireless communication system. More particularly, the method comprises the steps of: receiving information about a plurality of reference signal resources from a base station; receiving information about one channel state information (CSI) process from the base station; and reporting CSI on the basis of the information about the one CSI process, wherein the information about the one CSI process comprises information indicative of at least one of the plurality of reference signal resources.

公开(公告)号：US10425942B2

公开(公告)日：2019-09-24

申请号：US15735696

申请日：2016-06-20

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Seonwook Kim ,  Hanbyul Seo ,  Suckchel Yang ,  Yunjung Yi

IPC: H04W72/04 ,  H04L1/18 ,  H04W74/08

Abstract: Provided are a method and a device for transmitting an uplink in an unlicensed band. The device checks for idle subpools by performing clear channel assessment (CCA) on a plurality of sub-pools in a main pool in an unlicensed band. The device transmits an uplink transmission block by using the idle sub-pools in the unlicensed band.

公开(公告)号：US10425825B2

公开(公告)日：2019-09-24

申请号：US15504638

申请日：2015-08-20

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel Yang ,  Hanbyul Seo ,  Yunjung Yi

IPC: H04W16/14 ,  H04L5/00 ,  H04W72/04 ,  H04L27/00

Abstract: The present invention relates to a wireless communication system and, particularly, to a method and an apparatus therefor, said method comprising the steps of: configuring a plurality of cells including a licensed band cell and an unlicensed band cell; receiving SRS configuration information for the unlicensed band cell, wherein the SRS configuration information comprises subframe period and offset information for SRS transmission; and performing a procedure for transmitting SRS from a first subframe periodically configured on the unlicensed band cell on the basis of the SRS configuration information, wherein if the first subframe belongs to a UE-reserved time duration on the unlicensed band cell, then the SRS is transmitted in the first subframe, and wherein if the first subframe does not belong to the UE-reserved time duration on the unlicensed band cell, then the transmission of the SRS is skipped in the first subframe.

公开(公告)号：US10420126B2

公开(公告)日：2019-09-17

申请号：US15564336

申请日：2016-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Myoungseob Kim ,  Hanbyul Seo ,  Seungmin Lee ,  Laeyoung Kim

IPC: H04W72/12 ,  H04W24/10 ,  H04W28/02 ,  H04W88/04

Abstract: The present invention relates to a method and a device for transmitting data by a first device in a wireless communication system that supports direct device-to-device communication, wherein one or more messages are received from multiple devices, at least one message among the one or more messages is transmitted to a second device on the basis of priority, and the priority is determined in such an order that a message having the lowest first received signal strength has the highest priority, the first received signal strength indicating the received signal strength of the one or more messages.