公开(公告)号：US20190173553A1

公开(公告)日：2019-06-06

申请号：US16321374

申请日：2017-07-28

Applicant: LG ELECTRONICS INC

Inventor： Hanjun PARK ,  Kijun KIM ,  Eunsun KIM ,  Jiwon KANG ,  Kunil YUM ,  Seungmin LEE

IPC: H04B7/06 ,  H04L5/00 ,  H04W56/00 ,  H04B17/24 ,  H04L27/26

Abstract: Disclosed are a method for reporting channel state information by a terminal and, a device for supporting the same. More particularly, disclosed are a method in which a base station transmits a signal using a plurality of analog beams, and a terminal calculates channel state information feedback and reports the channel state information to the base station, in response to the base station, and a device for supporting the same.

公开(公告)号：US20190166571A1

公开(公告)日：2019-05-30

申请号：US15508463

申请日：2016-11-07

Applicant: LG ELECTRONICS INC.

Inventor： Seokmin SHIN ,  Hyunsoo KO ,  Yunjung YI ,  Kunil YUM

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W56/0015 ,  H04L5/00 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0091 ,  H04L5/0098 ,  H04L67/12 ,  H04W72/042

Abstract: A method for receiving system information in a wireless communication system supporting a Narrow Band (NB)-Internet of Things (IoT), the method performed by a terminal comprising: receiving a narrowband synchronization signal (NBSS) through a narrowband (NB) from a base station; acquiring, based on the NBSS, time synchronization and frequency synchronization with the base station; and receiving the system information related to the NB-IoT through a narrowband physical broadcast channel (N-PBCH) from the base station, wherein the system information includes at least one of operation mode information indicating an operation mode of an NB-IoT system or control information indicating an index of a legacy CRS (cell-specific reference signal) sequence, and wherein the control information is associated with a PRB (physical resource block) index of a PRB to which the legacy CRS is transmitted.

公开(公告)号：US20190140723A1

公开(公告)日：2019-05-09

申请号：US16065452

申请日：2017-07-26

Applicant: LG Electronics Inc.

Inventor： Kunil YUM ,  Kijun KIM ,  Yunjung YI ,  Jiwon KANG ,  Hyungtae KIM

IPC: H04B7/06 ,  H04B7/0417 ,  H04L5/00 ,  H04W72/04 ,  H04W76/27

Abstract: A channel state reporting method on the basis of an aperiodic channel state information-reference signal (CSI-RS) in a wireless communication system according to an embodiment of the present invention may comprise the steps of: receiving an aperiodic channel state information (CSI) request; and transmitting aperiodic CSI-RS-based CSI at a timing corresponding to one among a plurality of candidate values in response to the aperiodic CSI request, wherein the plurality of candidate values are selected according to a CSI-related parameter, and the CSI-related parameter includes at least one among a type of information included in the CSI, frequency granularity of the CSI, use or non-use of a code book when the CSI is derived, and the number of antenna ports of the CSI-RS.

公开(公告)号：US20180034525A1

公开(公告)日：2018-02-01

申请号：US15548715

申请日：2016-02-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04W72/04 ,  H04B17/24

CPC classification number: H04B7/0626 ,  H04B7/0456 ,  H04B7/0628 ,  H04B17/24 ,  H04L5/00 ,  H04L5/0053 ,  H04W24/10 ,  H04W72/0406 ,  H04W72/0413

Abstract: A method for feeding back channel state information (CSI) in a wireless communication system, carried out by a terminal, according to the present specification comprises the steps of: transmitting, to a base station, capability information of the terminal for CSI-related action; receiving configuration information for the CSI-related action from the base station; tracking partially activated CSI reference signal (RS); measuring fully activated CSI-RS; and reporting the results of the measurement to the base station.

公开(公告)号：US20170272322A1

公开(公告)日：2017-09-21

申请号：US15513946

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Yunjung YI ,  Joonkui AHN ,  Suckchel YANG ,  Kunil YUM

IPC: H04L12/24 ,  H04W72/04

CPC classification number: H04L41/0853 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0092 ,  H04W72/0413 ,  H04W72/042

Abstract: Provided is a method for receiving a downlink control channel in a machine type communication (MTC) device. A method for receiving a downlink control channel can comprise the steps of: receiving first configuration information about an MTC device-operable subband among system bands of a cell; receiving second configuration information, about a subframe, for monitoring a downlink control channel in a cell-specific search space (CSS); and switching from a subband with respect to the first configuration information to a pre-configured cell-common subband and then receiving, in the cell-common subband in a subframe with respect to the second configuration information, a downlink control channel in the CSS and another channel.

公开(公告)号：US20170201340A1

公开(公告)日：2017-07-13

申请号：US15400785

申请日：2017-01-06

Applicant: LG ELECTRONICS INC.

Inventor： Kunil YUM ,  Yunjung YI ,  Kijun KIM ,  Hyunsoo KO

IPC: H04J13/00 ,  H04W72/04 ,  H04W72/00 ,  H04W4/06

CPC classification number: H04J13/0048 ,  H04L5/00 ,  H04L5/0016 ,  H04L5/0053 ,  H04W4/06

Abstract: Provided is a method for receiving a broadcast channel repeatedly transmitted in a plurality of subframes in a wireless communication system, the method being performed by a terminal and including detecting information on Walsh cover code to be applied to the broadcast channel; multiplying symbols of resource elements (REs) for the broadcast channel, received in each of the plurality of subframes, by an element of the detected Walsh cover code for a respective subframe; adding symbols of RE multiplied by a corresponding element of the detected Walsh cover code at the same position in each of the plurality of subframes to each other; and decoding symbols except for symbols of REs of a legacy reference signal determined based on power of the added symbols.

公开(公告)号：US20160365990A1

公开(公告)日：2016-12-15

申请号：US15121465

申请日：2015-03-02

Applicant: LG ELECTRONICS INC.

Inventor： Kunil YUM ,  Youngtae KIM ,  Kijun KIM ,  Jonghyun PARK

IPC: H04L25/02

CPC classification number: H04L25/0202 ,  H04B17/24 ,  H04B17/309 ,  H04B17/345 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0242

Abstract: A method for reporting a channel state of a terminal performed by the terminal is disclosed. The method includes receiving a channel state information-reference signal (CSI-RS) configuration for verifying validity of channel estimation using only a part of two-dimensional (2D) array antenna ports configured for the terminal, verifying the validity of the channel estimation using CSI-RS configuration and obtaining a channel estimation validity indicator, and transmitting the channel estimation validity indicator and channel state information based on the channel estimation validity indicator.

Abstract translation: 公开了一种用于报告终端执行的终端的信道状态的方法。 该方法包括：仅使用配置用于终端的二维（2D）阵列天线端口的一部分来验证信道估计的有效性的信道状态信息参考信号（CSI-RS）配置，用于验证信道估计的有效性，使用 CSI-RS配置并获得信道估计有效性指示符，并且基于信道估计有效性指示符发送信道估计有效性指示符和信道状态信息。

公开(公告)号：US20160072567A1

公开(公告)日：2016-03-10

申请号：US14784422

申请日：2014-04-29

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Hanjun PARK ,  Kijun KIM ,  Hyunho LEE ,  Kunil YUM

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0486 ,  H04B7/0478 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639

Abstract: The present invention relates to a wireless communication system. According to one embodiment of the present invention, a method for transmitting, by a terminal, channel state information (CSI) in a wireless communication system comprises the steps of: subsampling a code book for four antenna ports, including sixteen precoding matrixes; and feeding back the CSI on the basis of the subsampled code book, wherein the CSI includes at least one of a rank indicator (RI), a precoding matrix indicator (PMI) and a channel quality indicator (CQI), and if the RI is 3, the subsampled code book can be determined so as to minimize a chordal distance between subsampled code words.

Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统。 根据本发明的一个实施例，一种用于通过终端在无线通信系统中发送信道状态信息（CSI）的方法包括以下步骤：对包括十六个预编码矩阵的四个天线端口进行二次采样; 并且基于子采样码本反馈CSI，其中CSI包括秩指示符（RI），预编码矩阵指示符（PMI）和信道质量指示符（CQI）中的至少一个，并且如果RI是 如图3所示，可以确定子采样代码簿，以便使二次采样码字之间的弦距离最小化。

公开(公告)号：US20150181464A1

公开(公告)日：2015-06-25

申请号：US14575702

申请日：2014-12-18

Applicant: LG ELECTRONICS INC.

Inventor： Hyunho LEE ,  Hyungtae KIM ,  Hanjun PARK ,  Kunil YUM ,  Kijun KIM ,  Jonghyun PARK ,  Youngtae KIM

IPC: H04W28/04 ,  H04L1/00 ,  H04W72/04

CPC classification number: H04L1/0026 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0072 ,  H04L1/1692 ,  H04L1/1854 ,  H04L5/0053

Abstract: A method for receiving information for interference cancellation of a user equipment (UE) includes detecting downlink control information including interference control information for a specific resource block (RB) scheduled for the UE by using an index of the specific RB, wherein the interference control information for the specific RB includes control information related to interference signal in the specific RB and indicates that the interference control information for the specific RB is the same as interference control information for one or more RBs having a series of indices subsequent to the index of the specific RB, and performing cancellation of interference signal corresponding to the interference control information in the specific RB and the one or more RBs using the interference control information for the specific RB.

Abstract translation: 一种用于接收用户设备（UE）的干扰消除的信息的方法包括：通过使用所述特定RB的索引来检测包括为所述UE调度的特定资源块（RB）的干扰控制信息的下行链路控制信息，其中所述干扰控制信息 由于特定RB包括与特定RB中的干扰信号有关的控制信息，并且指示特定RB的干扰控制信息与用于具有特定RB的索引之后的一系列索引的一个或多个RB的干扰控制信息相同 RB，并使用特定RB的干扰控制信息来执行与特定RB中的干扰控制信息和一个或多个RB相对应的干扰信号的消除。

公开(公告)号：US20230361834A1

公开(公告)日：2023-11-09

申请号：US18222195

申请日：2023-07-14

Applicant: LG Electronics Inc.

Inventor： Jiwon KANG ,  Suckchel YANG ,  Hyungtae KIM ,  Jonghyun PARK ,  Kunil YUM

IPC: H04B7/06 ,  H04L5/00 ,  H04W48/10 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04B7/0626 ,  H04L5/0053 ,  H04W48/10 ,  H04W72/21 ,  H04W72/23

Abstract: The present disclosure provides a method for reporting CSI in a wireless communication system. In the present disclosure, a method for reporting channel state information (CSI) in a wireless communication system, which is performed by a UE includes: receiving, from an eNB, downlink control information (DCI) indicating activation of semi-persistent (SP) CSI reporting, in which the downlink control information is scrambled with a specific RNTI distinguished from a Cell-Radio Network Temporary Identity (C-RNTI); and reporting, to the eNB, the semi-persistent CSI through a physical uplink shared channel (PUSCH) based on the received downlink control information.