公开(公告)号：US10341144B2

公开(公告)日：2019-07-02

申请号：US16209541

申请日：2018-12-04

Applicant: LG Electronics Inc.

Inventor： Kukheon Choi ,  Jiwon Kang ,  Jonghyun Park ,  Kyuseok Kim ,  Minki Ahn ,  Kilbom Lee

IPC: H04L12/28 ,  H04L25/02 ,  H04B1/713 ,  H04L5/00 ,  H04L27/26 ,  H04W76/27 ,  H04W72/04 ,  H04B7/06 ,  H04W88/02 ,  H04J1/16

Abstract: A method of transmitting a sounding reference symbol (SRS) at a user equipment (UE) includes receiving, from a base station, first information including information on at least one predetermined SRS sequence parameter configured in association with a frequency hopping pattern among SRS sequence parameters, generating an SRS sequence using a value of a parameter corresponding to a frequency hopping pattern configured in the UE with respect to the at least one predetermined SRS sequence parameter, and transmitting the SRS, to which the generated SRS sequence is applied, to the base station through SRS resources.

公开(公告)号：US10313175B2

公开(公告)日：2019-06-04

申请号：US15580262

申请日：2016-01-20

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Jiwon Kang ,  Kitae Kim ,  Kungmin Park ,  Heejin Kim

IPC: H03D1/04 ,  H04L27/38 ,  H04L27/34 ,  H04L27/26 ,  H04W84/12

Abstract: Disclosed is a method for estimating a CFO, the method comprising: measuring a size ratio of a signal pair received in two consecutive OFDM symbols of a predetermined subcarrier; determining the received signal pair as a signal pair to be used for estimating a residual CFO when the size ratio is within a first threshold range; and estimating the residual CFO, using only the received signal pair which has been determined to be used for estimating the residual CFO.

公开(公告)号：US10305644B2

公开(公告)日：2019-05-28

申请号：US15337359

申请日：2016-10-28

Applicant: LG ELECTRONICS INC.

Inventor： Genebeck Hahn ,  Heejeong Cho ,  Eunjong Lee ,  Jiwon Kang ,  Ilmu Byun

IPC: H04W28/02 ,  H04L5/00 ,  H04W88/02 ,  H04W88/08 ,  H04L1/00 ,  H04L12/875 ,  H04W72/04

Abstract: The present disclosure provides a method for transmitting and receiving data in a wireless communication system. Particularly, the method performed by a user equipment (UE) includes performing a measurement in a measurement gap; receiving a first indication information that instructs to report a mobility state of the UE from a base station (BS); transmitting a second indication information that represents a mobility state to the BS; receiving control information related to a configuration change of the measurement gap from the BS; and transmitting and receiving data for a specific service with the BS in whole or a specific section of the measurement gap based on the received control information, thereby satisfy the requirement of low latency/high reliability requested in 5G.

公开(公告)号：US10299292B2

公开(公告)日：2019-05-21

申请号：US15549361

申请日：2016-02-15

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Jiwon Kang ,  Kilbom Lee ,  Kungmin Park ,  Heejin Kim

IPC: H04W74/00 ,  H04W74/08 ,  H04W76/10 ,  H04W88/08 ,  H04J13/00 ,  H04W76/27

Abstract: Provided is a method for detecting whether a random access channel (RACH) preamble collision occurs in a wireless communication system. An evolved Node B (eNB) receives, from a first user equipment (UE), a first RACH preamble generated by using a combination of a plurality of sequences, and also receives, from a second UE, a second RACH preamble generated by using one sequence. The eNB detects whether a collision occurs between the first RACH preamble and the second RACH preamble on the basis of the received patterns of the first RACH preamble and the second RACH preamble, wherein the received patterns of the first RACH preamble and the second RACH preamble are based on channel delay caused by multiple paths.

公开(公告)号：US10277373B2

公开(公告)日：2019-04-30

申请号：US15323670

申请日：2015-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Jiwon Kang ,  Wookbong Lee ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Eunsung Park

IPC: H04L5/00 ,  H04L27/18 ,  H04L27/26 ,  H04L27/00

Abstract: Disclosed is a method for transmitting a pilot sequence, the method comprising: generating a sequence set on the basis of a baseline sequence having non-CAZAC properties; and selecting any one pilot sequence form among sequence sets corresponding to different additional information, and transmitting same to a receiver.

公开(公告)号：US10224990B2

公开(公告)日：2019-03-05

申请号：US15321722

申请日：2014-06-26

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Heejin Kim ,  Kilbom Lee ,  Jiwon Kang

IPC: H04B7/04 ,  H04W72/04 ,  H04W72/06 ,  H04B7/0456 ,  H04B7/06 ,  H04W88/02 ,  H04W88/08

Abstract: Disclosed in the present application is a method for a terminal reporting a precoding matrix index to a base station in a wireless communication system. Specifically, the method comprises the steps of: estimating a channel with the base station; on the basis of the estimated channel, selecting a first precoding matrix from a first codebook; on the basis of the estimated channel, selecting a second precoding matrix from a second codebook comprising only precoding matrixes which do not include the first precoding matrix; and reporting, to the base station, at least one among the index of the first precoding matrix and the index of the second precoding matrix.

公开(公告)号：US10200099B2

公开(公告)日：2019-02-05

申请号：US15737078

申请日：2016-01-14

Applicant: LG ELECTRONICS INC.

Inventor： Heejin Kim ,  Jiwon Kang ,  Kitae Kim ,  Kilbom Lee ,  Kyungmin Park

IPC: H04B7/02 ,  H04B7/06 ,  H04W4/46 ,  H04B7/0452 ,  H04B7/0408 ,  H04L5/00

Abstract: The present specification relates to a method by which a terminal designs a hierarchical structure precoder in a vehicle-to-vehicle communication system. The method for designing a hierarchical structure precoder can comprise the steps of: receiving group information indicating a terminal group on the basis of a direction of a first-type beam; feeding back preference information on the first-type beam on the basis of the group information; receiving first-type beam information determined on the basis of the preference information; designing a hierarchical structure precoder including a first precoder and a second precoder, on the basis of the received first-type beam information; and feeding back channel information on the basis of the hierarchical structure precoder, wherein the first precoder can be precoder information on the first-type beam direction, and the second precoder can be precoder information on a second-type beam direction in the first-type beam direction.

公开(公告)号：US10136337B2

公开(公告)日：2018-11-20

申请号：US14777315

申请日：2014-02-10

Applicant: LG ELECTRONICS INC.

Inventor： Sungho Park ,  Jaehoon Chung ,  Sunam Kim ,  Soocheol Kyeong ,  Jinmin Kim ,  Kitae Kim ,  Kyunghaeng Lee ,  Hyunsoo Ko ,  Jiwon Kang

IPC: H04W16/28 ,  H04B7/06

Abstract: A method for transmitting channel state information by a terminal comprises the step of: receiving relation information on a CSI-RS and a physical antenna from a base station by the terminal, the relation information including information on a first CSI-RS and a first physical antenna transmitting the first CSI-RS and information on a second CSI-RS and a second physical antenna transmitting the second CSI-RS; and transmitting first channel state information and second channel state information to the base station on the basis of the relation information by the terminal.

公开(公告)号：US10122431B2

公开(公告)日：2018-11-06

申请号：US15513419

申请日：2015-03-31

Applicant: LG ELECTRONICS INC.

Inventor： Jiwon Kang ,  Kitae Kim ,  Kilbom Lee ,  Heejin Kim

IPC: H04B7/00 ,  H04B7/06 ,  H04B7/0452 ,  H04L25/02 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0456

Abstract: In the present application, a method for reporting channel status information (CSI) for multi-antenna-based beamforming by a terminal in a wireless communication system is disclosed. Specifically, the method comprises the steps of: receiving reference signal configuration information including two or more reference signal resources through an upper layer; receiving CSI process information through the upper layer; receiving a reference signal from a base station on the basis of the reference signal configuration information; and calculating the CSI on the basis of the CSI process information and the received reference signal and reporting the CSI to the base station, wherein the CSI process information includes a reference signal type indicator indicating a mapping relationship between the reference signal configuration information and multiple antennas.

公开(公告)号：US10084525B2

公开(公告)日：2018-09-25

申请号：US15323611

申请日：2015-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom Lee ,  Jiwon Kang ,  Kitae Kim ,  Heejin Kim

IPC: H04B7/02 ,  H04L1/02 ,  H04B7/08 ,  H04B7/0413

CPC classification number: H04B7/0842 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/08 ,  H04L25/03891

Abstract: A method is provided by which a multiple-input multiple-output (MIMO) receiver, which includes a plurality of antennas, processes received signals. The MIMO receiver determines a detection order, which is the order of processing received signals received by a plurality of layers through the plurality of antennas, by using channel information of a reference resource element (RE). The MIMO receiver generates common multi filters for processing the received signals in accordance with the detection order, generates an RE group, which includes a plurality of REs and in which the common multi filters generated on the basis of the reference RE will be shared, and generates detection signals from each received signal of the REs by applying the common multi filters to each received signal of the REs excluding the reference RE in the RE group. The RE group comprises REs having the same detection order as that of the reference RE.