公开(公告)号：US20190273549A1

公开(公告)日：2019-09-05

申请号：US16418543

申请日：2019-05-21

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun PARK ,  Kijun KIM ,  Haewook PARK ,  Youngtae KIM

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

Abstract: A method for receiving, by a user equipment (UE), a channel state information reference signal (CSI-RS) in a wireless communication system, includes receiving, from a base station, CSI-RS resource configuration information related to a numbering for a plurality of CSI-RS resources through a radio resource control (RRC) signaling, wherein the CSI-RS resource configuration information includes first CSI-RS configuration information and at least one second CSI-RS configuration information; and determining numbers for the plurality of CSI-RS resources based on the received CSI-RS resource configuration, wherein a specific CSI-RS resource among the plurality of CSI-RS resources corresponds to a value configured in the first CSI-RS configuration information, and at least one CSI-RS resource except the specific CSI-RS resource among the plurality of CSI-RS resources corresponds to a value configured in the second CSI-RS configuration information, and wherein the specific CSI-RS resource is a CSI-RS resource related to a lowest number among the plurality of CSI-RS resources.

公开(公告)号：US20190181925A1

公开(公告)日：2019-06-13

申请号：US16065704

申请日：2017-01-03

Applicant: LG Electronics Inc.

Inventor： Jiwon KANG ,  Hanbyul SEO ,  Kijun KIM ,  Hyungtae KIM ,  Youngtae KIM ,  Kilbom LEE

IPC: H04B7/0417 ,  H04B7/0456 ,  H04W72/08

Abstract: Disclosed in the present application is a method for transmitting, by a terminal, an uplink signal to a base station through a plurality of antenna ports in a wireless communication system. Specifically, the method comprises the steps of: transmitting, to the base station, uplink reference signals corresponding to the plurality of antenna ports and antenna port grouping information: receiving, from the base station, information on an uplink precoder, which is determined on the basis of the uplink reference signals and the antenna port group information; precoding the uplink signal using the information on the uplink precoder; and transmitting the precoded uplink signal to the base station, wherein the antenna port grouping information comprises information on antenna port groups comprising the plurality of antenna ports and information of the signal distortion level between the antenna port groups.

公开(公告)号：US20190075603A1

公开(公告)日：2019-03-07

申请号：US16083814

申请日：2017-03-13

Applicant: LG ELECTRONICS INC.

Inventor： Jongwoo HONG ,  Myoungseob KIM ,  Seungmin LEE ,  Youngtae KIM ,  Hyukjin CHAE ,  Hanbyul SEO

IPC: H04W74/08 ,  H04W4/40 ,  H04W74/00 ,  H04W4/06 ,  H04W4/02 ,  H04W24/10

CPC classification number: H04W74/0858 ,  H04W4/023 ,  H04W4/06 ,  H04W4/40 ,  H04W24/10 ,  H04W72/02 ,  H04W74/006

Abstract: A method for resolving, by a mobile device, resource collision in a V2X communication environment may comprise the steps of: determining whether resource collision has occurred in a specific resource selected by a plurality of adjacent mobile devices; and, if it is determined that resource collision has occurred, transmitting information on the result of the determination to the plurality of adjacent mobile devices.

公开(公告)号：US20190007957A1

公开(公告)日：2019-01-03

申请号：US16109250

申请日：2018-08-22

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin CHAE ,  Hakseong KIM ,  Hanbyul SEO ,  Jihyun LEE ,  Kijun KIM ,  Youngtae KIM

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W76/14 ,  H04L12/911

Abstract: Disclosed is a method for transmission and reception of a device-to-device (D2D) signal by a terminal in a wireless communication system. The method for transmission and reception of a D2D signal, according to an embodiment of the present invention, comprises the steps of: receiving a scheduling assignment comprising a resources pattern for transmission (RPT); and receiving a D2D signal in a subframe indicated in the RPT, wherein each bit of the RPT indicates whether or not the D2D signal is permitted to be transmitted in the subframe within a scheduling assignment period, and wherein, if the number of the subframes comprised in the scheduling assignment period is greater than the number of the bits of the RPT, at least one bit of the RPT indicates whether or not the D2D signal is permitted to be transmitted in two or more subframes.

公开(公告)号：US20180097548A1

公开(公告)日：2018-04-05

申请号：US15569613

申请日：2016-05-12

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae KIM ,  Kijun KIM ,  Yunjung YI ,  Jonghyun PARK

IPC: H04B7/0417 ,  H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/04 ,  H04B7/0478 ,  H04B7/06 ,  H04B7/0626 ,  H04L5/00

Abstract: The present invention relates to a method and apparatus for feeding back, by a terminal, reference signal information in wireless communication using a two-dimensional active antenna system including a plurality of antennas. Particularly, the method for feeding back reference signal information comprises the steps of: receiving, from a base station, a reference signal configuration including identifiers of a plurality of reference signals having a first reference signal set and a second reference signal set; receiving the plurality of reference signals to which the precoding is applied; measuring reference signal received power (RSRP) for each of the plurality of reference signals; and transmitting, to the base station, information on at least a part of the first reference signal set and information on at least a part of the second reference signal set, on the basis of the measured RSRP. In addition, the precoding for the terminal is determined on the basis of the information on at least a part of the first reference signal set, and the interference information for the terminal can be determined on the basis of the information on at least a part of the second reference signal set.

公开(公告)号：US20170373735A1

公开(公告)日：2017-12-28

申请号：US15545209

申请日：2016-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae KIM ,  Hanbyul SEO ,  Hyukjin CHAE ,  Kijun KIM

IPC: H04B7/06 ,  H04W72/04 ,  H04B7/0456 ,  H04L5/00 ,  H04B7/024

CPC classification number: H04B7/066 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0621 ,  H04B7/0669 ,  H04B7/0671 ,  H04B7/068 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0053 ,  H04W72/0413

Abstract: Disclosed is a method for supporting uplink multiple-input and multiple-output (MIMO) in a wireless communication system. A method for transmitting data according to the present invention comprises the steps of: mapping, to first orthogonal frequency division multiplexing (OFDM) symbols within a subframe, first demodulation reference signals (DMRSs) corresponding to a first antenna port and a second DMRSs corresponding to a second antenna port; mapping, to second OFDM symbols except the first OFDM symbols within the subframe, first data corresponding to the first antenna port and second data corresponding to the second antenna port; and transmitting the subframe by using resources allocated to the uplink, wherein predetermined precodings are applied to the first data and the second data, and the predetermined precodings may be changed according to the index of the second OFDM symbols.

公开(公告)号：US20170302480A1

公开(公告)日：2017-10-19

申请号：US15511603

申请日：2015-09-25

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Jonghyun PARK ,  Youngtae KIM

IPC: H04L25/02 ,  H04B7/06 ,  H04B7/02

CPC classification number: H04L25/0224 ,  H04B7/024 ,  H04B7/04 ,  H04B7/06 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0634

Abstract: A method for reporting a channel state for a downlink channel to be transmitted via at least one two-dimensional array antenna element composed of a row antenna array and a column antenna array is disclosed in accordance with one embodiment of the present invention. The method is performed by a terminal, and the method may comprise the steps of: receiving settings for channel state information (CSI) process 1 and CSI process 2, the CSI process 1 and the CSI process 2 each comprising a plurality of CSI-reference signal (RS) settings; selecting one of the CSI process 1 and the CSI process 2 if the CSI process 1 and the CSI process 2 have the same feedback cycle and offset; and estimating the downlink channel and reporting the channel estimation to a serving base station according to one selected from the CSI process 1 and the CSI process 2.

公开(公告)号：US20170257846A1

公开(公告)日：2017-09-07

申请号：US15324240

申请日：2015-08-07

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae KIM ,  Hanbyul SEO ,  Hyukjin CHAE

IPC: H04W72/04

Abstract: A method for transmitting a device-to-device (D2D) signal of a terminal in D2D communication is disclosed. The method for transmitting a D2D signal of a terminal in D2D communication, according to one embodiment, includes a step of transmitting the D2D signal by using physical resource blocks within a resource block pool, wherein the structure of the resource block pool is indicated by means of higher layer signaling and the transmission of the D2D signal occurs only on the continuous physical resource blocks.

公开(公告)号：US20170207932A1

公开(公告)日：2017-07-20

申请号：US15324616

申请日：2015-07-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Kijun KIM ,  Jonghyun PARK ,  Youngtae KIM

IPC: H04L25/02 ,  H04W72/04 ,  H04B7/0456 ,  H04J13/00 ,  H04J13/18 ,  H04B7/0452 ,  H04L5/00

CPC classification number: H04L25/0226 ,  H04B7/0452 ,  H04B7/0456 ,  H04J13/004 ,  H04J13/18 ,  H04L5/00 ,  H04L5/0023 ,  H04L5/0051 ,  H04L25/02 ,  H04W72/042

Abstract: A method by which a terminal estimates a channel in a wireless access system can comprises the steps of: receiving mapping information on a port and a layer of a data demodulation reference signal (DMRS); receiving change information on whether the port of the DMRS has been changed; and determining a change in port information on the basis of an indicator and estimating a channel of the DMRS.

公开(公告)号：US20170207815A1

公开(公告)日：2017-07-20

申请号：US15326323

申请日：2015-07-28

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin CHAE ,  Youngtae KIM

IPC: H04B1/713 ,  H04W72/04

Abstract: A method for transmitting a signal by a Device-to-Device (D2D) User Equipment (UE) is disclosed. The method includes mapping a block of complex-valued symbols to Physical Resource Blocks (PRBs), and generating and transmitting a Single Carrier Frequency Division Multiple Access (SC-FDMA) signal after the mapping. If frequency hopping is used during the mapping, a lowest PRB index of the PRBs is changed between a first PRB index and a second PRB index according to a change in a transmission number for a transport block. If the block of complex-valued symbols is a D2D communication signal, the transmission number for the transport block is replaced with a subframe index of a D2D resource pool.