公开(公告)号：US20150349864A1

公开(公告)日：2015-12-03

申请号：US14759629

申请日：2014-01-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0478 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/065 ,  H04J11/00

Abstract: The present invention relates to a wireless communication system. A method by which a base station transmits a downlink signal in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving first and second precoding matrix indicators (PMIs) from a terminal; determining a first matrix (W1) from a first codebook on the basis of the first PMI, determining a second matrix (W2) from a second codebook on the basis of the second PMI, and determining a precoding matrix (W) on the basis of the first matrix (W1) and the second matrix (W2); performing precoding by using the determined precoding matrix (W) at two or more layers to which a downlink signal is mapped; and transmitting a precoded signal to the terminal, wherein all precoding vectors included in the precoding matrix (W) have linear phase increment properties and can be orthonormal to one another.

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的基站在无线通信系统中发送下行链路信号的方法包括以下步骤：从终端接收第一和第二预编码矩阵指示符（PMI）; 基于第一PMI从第一码本确定第一矩阵（W1），基于第二PMI从第二码本确定第二矩阵（W2），并且基于第二PMI确定预编码矩阵（W） 第一矩阵（W1）和第二矩阵（W2）; 通过在映射下行链路信号的两个或更多个层处使用所确定的预编码矩阵（W）来执行预编码; 以及向所述终端发送预编码信号，其中包括在所述预编码矩阵（W）中的所有预编码矢量具有线性相位增量属性并且可以彼此正交。

公开(公告)号：US20150155992A1

公开(公告)日：2015-06-04

申请号：US14622332

申请日：2015-02-13

Applicant: LG ELECTRONICS INC.

Inventor： Kijun KIM ,  Hyungtae KIM ,  Hanbyul SEO ,  Daewon LEE

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

CPC classification number: H04B7/0626 ,  H04B7/024 ,  H04J11/0036 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0094 ,  H04L25/03343 ,  H04L2025/03426 ,  H04W24/08 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/082 ,  H04W72/085 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

Abstract: A method for transmitting a Channel State Information-Reference Signal (CSI-RS) from a base station supporting multiple transmit antennas to a mobile station. The method according to one embodiment includes transmitting, at the base station, information of one or more CSI-RS configurations to the mobile station; and transmitting, at the base station, at least one downlink subframe mapped with the CSI-RSs to the mobile station. The one or more CSI-RS configurations include i) at least one CSI-RS configuration for which the mobile station assumes non-zero transmission power for the CSI-RS, ii) at least one CSI-RS configuration for which the mobile station assumes zero transmission power for the CSI-RS, or iii) at least one CSI-RS configuration for which the mobile station assumes non-zero transmission power for the CSI-RS and at least one CSI-RS configuration for which the mobile station assumes zero transmission power for the CSI-RS.

Abstract translation: 一种用于从支持多个发射天线的基站向移动台发送信道状态信息参考信号（CSI-RS）的方法。 根据一个实施例的方法包括在基站向移动台发送一个或多个CSI-RS配置的信息; 以及在所述基站处向所述移动站发送与所述CSI-RS映射的至少一个下行链路子帧。 一个或多个CSI-RS配置包括i）至少一个CSI-RS配置，移动台为该CSI配置为CSI-RS采取非零发射功率; ii）移动台采用的至少一个CSI-RS配置 CSI-RS的零发射功率，或iii）至少一个CSI-RS配置，移动台为该CSI配置为CSI-RS采取非零发射功率，以及至少一个CSI-RS配置，移动台为此采用零 CSI-RS的传输功率。

公开(公告)号：US20140192918A1

公开(公告)日：2014-07-10

申请号：US14150405

申请日：2014-01-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/04 ,  H04W88/08 ,  H04W88/02

CPC classification number: H04B7/0486 ,  H04B7/0469 ,  H04B7/0478 ,  H04L1/06 ,  H04L1/0618 ,  H04W88/02 ,  H04W88/08

Abstract: A method of reporting a channel state to a base station supporting downlink multiple input multiple output in a wireless communication system includes measuring a downlink channel based on a downlink signal received from the base station, and reporting a codebook index for precoding of the downlink signal according to the measurement of the downlink channel. The codebook for precoding includes an improved codebook (hereinafter, referred to as an improved 4Tx codebook) having a dual structure composed of a codebook for wideband and a codebook for subband, for 4 transmit (4Tx) antenna ports, and the improved 4Tx codebook includes sub-codebooks obtained by sub-sampling the codebook for subband according to priority.

Abstract translation: 向在无线通信系统中支持下行链路多输入多输出的基站报告信道状态的方法包括基于从基站接收的下行链路信号测量下行信道，并根据下行链路信号的预编码报告码本索引， 到下行链路信道的测量。 用于预编码的码本包括用于4个发送（4Tx）天线端口的具有由宽带码本和子带码本组成的双重结构的改进码本（以下称为改进的4Tx码本），并且改进的4Tx码本包括 根据优先级对子带码本进行子采样而得到的子码本。

公开(公告)号：US20130094479A1

公开(公告)日：2013-04-18

申请号：US13653125

申请日：2012-10-16

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun PARK ,  Seungmin LEE ,  Hyungtae KIM ,  Hanbyul SEO

IPC: H04W72/04

CPC classification number: H04L1/0026 ,  H04L1/0027 ,  H04L1/0031 ,  H04L1/0077 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0057 ,  H04W28/06 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1289

Abstract: A method for transmitting, by a user equipment (UE), a channel state information (CSI) in a wireless communication system is disclosed. The method includes receiving control information about a transmission of the CSI from a serving eNodeB, allocating a CSI combination composed of different CSIs to one subframe based on the received control information, and transmitting the CSI combination to the serving eNodeB in the allocated subframe, wherein the control information includes information on a maximum payload size of a CSI being able to be transmitted in one subframe, a transmission period and a transmission start time point of the CSI combination, and a transmission period and a transmission start time point of each of the different CSIs.

Abstract translation: 公开了一种用户设备（UE）在无线通信系统中发送信道状态信息（CSI）的方法。 该方法包括从服务eNodeB接收关于CSI的传输的控制信息，基于接收到的控制信息，将由不同CSI组成的CSI组合分配给一个子帧，以及在所分配的子帧中向服务eNodeB发送CSI组合，其中 控制信息包括关于能够在一个子帧中发送的CSI的最大有效载荷大小的信息，CSI组合的发送周期和发送开始时间点，以及每个的发送周期和发送开始时间点 不同的CSI。

公开(公告)号：US20240388347A1

公开(公告)日：2024-11-21

申请号：US18761899

申请日：2024-07-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Jiwon KANG ,  Jonghyun PARK ,  Haewook PARK

IPC: H04B7/06 ,  H04B17/336

Abstract: The present disclosure relates to a method for reporting CSI by a terminal (user equipment) supported by a plurality of base stations in a wireless communication system, the method comprising: receiving CSI report-related configuration information from at least one base station among the plurality of base stations; receiving a first reference signal via a specific reception beam from a first base station among the plurality of base stations; receiving a second reference signal via the specific reception beam from at least one base station except for the first base station among the plurality of base stations; calculating the CSI by performing measurement on the first reference signal and the second reference signal; and transmitting the CSI to the first base station, wherein the terminal may calculate the CSI by measuring, as interference, the second reference signal received via the specific reception beam.

公开(公告)号：US20240373425A1

公开(公告)日：2024-11-07

申请号：US18557797

申请日：2022-05-03

Applicant: LG Electronics Inc.

Inventor： Hyungtae KIM ,  Jiwon KANG ,  Seongwon GO

IPC: H04W72/20 ,  H04B7/024 ,  H04W72/51

Abstract: Disclosed are a method and device for transmitting or receiving an uplink or downlink in a wireless communication system. A method for a terminal to communicate according to an embodiment disclosed herein may comprise the steps of: transmitting capability information including first information to a base station, wherein the first information indicates whether the terminal supports a single transmission or reception configuration in a single unit of time, or supports multiple transmission or reception configuration s in a single unit of time; receiving, from the base station, second information related to at least one transmission occasion (TO) based on the capability information; and performing uplink transmission or downlink reception in the at least one TO on the basis of the second information.

公开(公告)号：US20240340051A1

公开(公告)日：2024-10-10

申请号：US18293702

申请日：2022-08-01

Applicant: LG Electronics Inc.

Inventor： Hyungtae KIM ,  Haewook PARK ,  Kyuseok KIM

IPC: H04B7/06 ,  H04B7/0456

CPC classification number: H04B7/0626 ,  H04B7/0456

Abstract: Disclosed are a method and a device for transmitting and receiving CSI in a wireless communication system. A method for transmitting CSI according to one embodiment of the present disclosure comprises the steps of: receiving, from a base station, first configuration information related to a CSI report and second configuration information related to a CSI resource, the second configuration information including information on one or more CSI resource sets associated with the first configuration information; receiving, from the base station, a CSI-RS on a plurality of CSI resources of the one or more CSI resource sets on the basis of the second configuration information; and transmitting the CSI to the base station on the basis of the CSI-RS and the first configuration information.

公开(公告)号：US20240298330A1

公开(公告)日：2024-09-05

申请号：US18662423

申请日：2024-05-13

Applicant: LG Electronics Inc.

Inventor： Jiwon KANG ,  Hyungtae KIM

IPC: H04W72/23 ,  H04L5/00

CPC classification number: H04W72/23 ,  H04L5/0048

Abstract: The present specification provides a method for transmitting and receiving a plurality of PDSCHs in a wireless communication system and a device for same. In particular, the method carried out by a terminal may comprise the steps of: receiving configuration information for configuring a number K of time-unit groups for receiving a plurality of PDSCHs via different quasi co-location (QCL) source signals; receiving PDSCH configuration information including information about a plurality of transmission configuration indication (TCI) states; receiving information about a number K of TCI states, corresponding to the number K of time-unit groups, among the plurality of TCI states; and receiving the plurality of PDSCHs on the basis of the number K of TCI states.

公开(公告)号：US20240276504A1

公开(公告)日：2024-08-15

申请号：US18681010

申请日：2022-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Jiwon KANG ,  Seongwon GO

IPC: H04W72/21 ,  H04L5/00 ,  H04W72/04 ,  H04W72/231

CPC classification number: H04W72/21 ,  H04L5/0051 ,  H04W72/231 ,  H04W72/04

Abstract: A method and a device for performing uplink transmission or reception in a wireless communication system are disclosed. A method for performing uplink transmission by a terminal according to an embodiment of the present disclosure may comprise the steps of: receiving configuration information including information related to multiple PUCCH groups from a base station; and receiving, from the base station, first control information related to update of at least one of multiple SR RSs configured for a first PUCCH resource included in a first PUCCH group and a second PUCCH group among the multiple PUCCH groups, wherein at least one of SR RSs configured for multiple PUCCH resources included in the first PUCCH group or the second PUCCH group is updated on the basis of the first control information and an index value of each of the first PUCCH group and the second PUCCH group.

公开(公告)号：US20240243881A1

公开(公告)日：2024-07-18

申请号：US18560038

申请日：2022-05-12

Applicant: LG ELECTRONICS INC.

Inventor： Jaehoon CHUNG ,  Hyungtae KIM ,  Seongwon GO ,  Kyuseok KIM ,  Jiwon KANG

IPC: H04L5/00

CPC classification number: H04L5/0053

Abstract: A method of transmitting and receiving a PUCCH in a wireless communication system and a device therefor are disclosed. The method performed by a UE may comprise receiving DCI, the DCI including at least one SRI information or TCI state information, updating at least one spatial relation information of a PUCCH resource based on the at least one SRI information or the TCI state information, and transmitting the PUCCH based on the at least one spatial relation information in the PUCCH resource.