公开(公告)号：US20160006495A1

公开(公告)日：2016-01-07

申请号：US14767825

申请日：2014-06-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Hanjun PARK

IPC: H04B7/04 ,  H04L5/00

CPC classification number: H04B7/0486 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0478 ,  H04B7/0639 ,  H04B17/382 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0023 ,  H04L5/0057 ,  H04W72/0413 ,  H04W72/06 ,  H04W88/02

Abstract: The present invention relates to a wireless communication system. A method for transmitting CSI by a terminal in a wireless communication system according to an embodiment of the present invention comprises: subsampling a first codebook associated with a first PMI and a second codebook associated with a second PMI according to a report sub-mode for four antenna ports; and reporting channel state information based on the subsampled first codebook and the subsampled second codebook, wherein a first codebook index for the first PMI may be determined as one of 0, 4, 8, and 12 when RI is 1 or 2, a second codebook index for the second PMI may be determined as one of 0, 2, 8, and 10 when the RI is 1, and the second codebook index for the second PMI may be determined as one of 0, 1, 4, and 5 when the RI is 2.

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。 根据本发明的实施例的用于在无线通信系统中的终端发送CSI的方法包括：根据用于四个的报告子模式对与第一PMI相关联的第一码本和与第二PMI相关联的第二码本进行子采样 天线端口; 以及基于子采样的第一码本和子采样的第二码本报告信道状态信息，其中当RI为1或2时，用于第一PMI的第一码本索引可以被确定为0,4,8和12中的一个，第二码本 当RI为1时，第二PMI的索引可以被确定为0,2,8和10中的一个，并且当第二PMI的第二码本索引可以被确定为0,1,4和5中的一个时，当 RI为2。

公开(公告)号：US20150372772A1

公开(公告)日：2015-12-24

申请号：US14741937

申请日：2015-06-17

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Seungmin LEE ,  Inkwon SEO ,  Hanbyul SEO

IPC: H04B15/00 ,  H04L5/00 ,  H04L1/16 ,  H04W72/04

CPC classification number: H04B15/00 ,  H04L1/1614 ,  H04L1/1858 ,  H04L1/1861 ,  H04L5/0023 ,  H04L5/0073 ,  H04L5/0092 ,  H04L5/1469

Abstract: Disclosed is a wireless communication system. A method for receiving a signal using NAICS (Network Assisted Interference Cancellation and Suppression) in a wireless access system supporting eIMTA (Enhanced Interference Management and Traffic Adaptation) includes receiving first information on uplink and downlink configuration of a neighbor cell and second information related with a flexible subframe of the neighbor cell, and receiving the signal based on the first information and the second information.

Abstract translation: 公开了一种无线通信系统。 一种在支持eIMTA（增强型干扰管理和业务适配）的无线接入系统中使用NAICS（Network Assisted Interference Cancellation and Suppression）接收信号的方法包括：接收关于相邻小区的上行链路和下行链路配置的第一信息以及与 相邻小区的灵活子帧，以及基于第一信息和第二信息接收信号。

公开(公告)号：US20150365150A1

公开(公告)日：2015-12-17

申请号：US14765799

申请日：2014-03-21

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Kijun KIM

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0486 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/0663 ,  H04W72/0413

Abstract: The present invention relates to a wireless communication system. A method for transmitting channel state information (CSI) in a wireless communication system, according to one embodiment of the present invention, comprises steps of: subsampling a codebook for a four-antenna port including 16 precoding matrices; and performing feedback for the CSI on the basis of a subsampled codebook, wherein when a rank indicator (RI) is four, a subsampled codebook includes, from 16 precoding matrices, a first precoding matrix having index 0, a third precoding matrix having index 2, a ninth precoding matrix having index 8, and an eleventh precoding matrix having index 10.

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用于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16个预编码矩阵的四天线端口进行二次采样; 并且基于子采样码本对CSI进行反馈，其中当秩指示符（RI）为4时，子采样码本包括来自16个预编码矩阵的具有索引为0的第一预编码矩阵，具有索引2的第三预编码矩阵 ，具有索引8的第九预编码矩阵和具有索引10的第十一预编码矩阵。

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：US20250141499A1

公开(公告)日：2025-05-01

申请号：US18692650

申请日：2022-10-07

Applicant: LG Electronics Inc.

Inventor： Jiwon KANG ,  Hyungtae KIM ,  Kyuseok KIM

IPC: H04B7/0404 ,  H04L1/08 ,  H04L5/00 ,  H04W72/1268 ,  H04W72/232

Abstract: A method and a device for performing uplink transmission/reception in a wireless communication system are disclosed. A method by which a terminal performs uplink transmission in a wireless communication system, according to an embodiment of the present disclosure, may comprise the steps of: receiving, from a base station, configuration information about one or more sets of SRS resources; receiving, from the base station, DCI for scheduling a PUSCH, the DCI including information related to one or more sets of SRS resources from among the one or more sets of SRS resources; identifying a method to be applied to the PUSCH from among a first method and a second method; and transmitting the PUSCH to the base station on the basis of the identified method.

公开(公告)号：US20250119905A1

公开(公告)日：2025-04-10

申请号：US18729415

申请日：2023-01-13

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Jiwon KANG ,  Seonwook KIM

IPC: H04W72/1268 ,  H04L5/00 ,  H04W72/232

Abstract: Disclosed are a method and apparatus for performing uplink transmission and reception in a wireless communication system. A method performed by a terminal in a wireless communication system, according to an embodiment of the present disclosure, may comprise the steps of: receiving information related to the indication of a plurality of spatial parameters for an uplink; receiving information about a plurality of TOs through DCI scheduling a plurality of PUSCHs; and transmitting the plurality of PUSCHs in the plurality of TOs. Here, on the basis that two or more TOs among the plurality of TOs overlap, the two or more TOs are respectively mapped to different spatial parameters among the plurality of spatial parameters, and at least one remaining TO may be mapped to one of the plurality of spatial parameters.

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.