公开(公告)号：US09794844B2

公开(公告)日：2017-10-17

申请号：US14908453

申请日：2013-11-11

Applicant: LG ELECTRONICS INC. ,  SOGANG UNIVERSITY RESEARCH FOUNDATION

Inventor： Youngtae Kim ,  Gilsoo Lee ,  Hongseok Kim ,  Byounghoon Kim

IPC: H04W52/02 ,  H04B7/0456 ,  H04W36/16 ,  H04W16/32

CPC classification number: H04W36/165 ,  H04B7/0456 ,  H04W16/32 ,  H04W24/02 ,  H04W48/12 ,  H04W52/02 ,  H04W52/0206 ,  H04W84/045 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264

Abstract: The present invention includes a plurality of access points (APs); a plurality of user equipments (UEs); and a macro cell, wherein the macro cell is configured to receive feedback including a first matrix comprising connection information between identifiers of the plurality of APs and the plurality of UEs, generate a second matrix including information on a specific AP to be activated, the specific AP being determined on the basis of the first matrix, and broadcast the generated second matrix.

公开(公告)号：US09496934B2

公开(公告)日：2016-11-15

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 ,  H04J11/00

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：US09407345B2

公开(公告)日：2016-08-02

申请号：US14649144

申请日：2013-12-10

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Hyungtae Kim ,  Hanjun Park ,  Kijun Kim ,  Jonghyun Park

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0478 ,  H04B7/04 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/065 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0023 ,  H04L5/0057

Abstract: The present invention relates to a method by which a terminal feeds back channel state information for downlink transmission in a wireless communication system supporting multiple antennas. More specifically, the present invention comprises a step of transmitting a first precoding matrix index (PMI) and a second PMI for each sub-band, wherein a precoding matrix preferred by the terminal is instructed to combine the first PMI and the second PMI, and a precoding codebook in which a portion of a plurality of bits forming the second PMI is additionally used to form the first PMI is applied.

Abstract translation: 本发明涉及一种终端在支持多个天线的无线通信系统中反馈用于下行链路传输的信道状态信息的方法。 更具体地说，本发明包括发送每个子带的第一预编码矩阵索引（PMI）和第二PMI的步骤，其中指示由终端优选的预编码矩阵组合第一PMI和第二PMI，以及 应用附加地使用形成第二PMI的多个比特的一部分来形成第一PMI的预编码码本。

公开(公告)号：US09312934B2

公开(公告)日：2016-04-12

申请号：US14423648

申请日：2013-09-16

Applicant: LG Electronics Inc.

Inventor： Youngtae Kim ,  Kijun Kim ,  Hyukjin Chae ,  Bonghoe Kim ,  Hanbyul Seo

IPC: H04B7/04 ,  H04L5/00

CPC classification number: H04B7/0417 ,  H04B7/04 ,  H04B7/046 ,  H04B7/0469 ,  H04B7/0478 ,  H04L5/0014

Abstract: The present invention relates to a method for transmitting a signal of a transmitting side in a wireless communication system that supports multiple antennas. More particularly, the method comprises the steps of: receiving, from a receiving side, feedback information for transmitting the signal of the transmitting side; and transmitting a signal to which a precoding matrix (W) is applied on the basis of the feedback information, wherein the precoding matrix (W) is expressed as a multiplication of two precoding matrices (W1 and W2), W1 is set to correspond to a plurality of antenna groups configured according to the feedback information, and W2 is configured such that the signal corresponding to the plurality of antenna groups can be transmitted in a mutual orthogonal way.

Abstract translation: 本发明涉及在支持多个天线的无线通信系统中发送发送侧的信号的方法。 更具体地，该方法包括以下步骤：从接收侧接收用于发送发送侧的信号的反馈信息; 并根据反馈信息发送应用了预编码矩阵（W）的信号，其中预编码矩阵（W）表示为两个预编码矩阵（W1和W2）的乘法，W1被设置为对应于 根据反馈信息配置的多个天线组，W2被配置为使得可以以相互正交的方式发送与多个天线组对应的信号。

公开(公告)号：US09258045B2

公开(公告)日：2016-02-09

申请号：US14765794

申请日：2014-02-25

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Hyukjin Chae ,  Kijun Kim ,  Jonghyun Park

IPC: H04B7/02 ,  H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0482 ,  H04B7/0404 ,  H04B7/0456 ,  H04B7/0626

Abstract: The present invention relates to a method for a transmitting end efficiently transmitting a signal in a wireless communication system supporting a multi-antenna and an apparatus for same. More particularly, the method comprises a step of transmitting a downlink signal based on a precoding matrix (W) for an antenna comprising a plurality of antenna elements aligned perpendicularly, wherein the precoding matrix (W) corresponds to a codebook configured so that phase increase is limited with respect to a plurality of precoding vector values populating a same column.

Abstract translation: 本发明涉及一种用于在支持多天线的无线通信系统中发送端有效发送信号的方法及其装置。 更具体地，该方法包括基于用于包括垂直对齐的多个天线元件的天线的预编码矩阵（W）发送下行链路信号的步骤，其中预编码矩阵（W）对应于被配置为使得相位增加为 限于填充相同列的多个预编码向量值。

公开(公告)号：US08995910B2

公开(公告)日：2015-03-31

申请号：US13685208

申请日：2012-11-26

Applicant: LG Electronics Inc.

Inventor： Kabsung Chong ,  Jongoh Kim ,  Youngtae Kim ,  Mizi Yi ,  Kiwon Han ,  Euntaek Jeoung

IPC: H04B5/00 ,  H01Q1/24 ,  H01Q1/38 ,  H01Q1/40 ,  H01Q5/00 ,  H01Q7/00 ,  H01Q7/08 ,  H01Q21/28 ,  H04M1/02

CPC classification number: H04B1/3833 ,  H01F27/2804 ,  H01F27/365 ,  H01F27/38 ,  H01F38/14 ,  H01Q1/243 ,  H01Q1/38 ,  H01Q1/40 ,  H01Q5/40 ,  H01Q7/00 ,  H01Q7/08 ,  H01Q21/28 ,  H04B5/0081 ,  H04M1/026

Abstract: An antenna and a mobile terminal having the antenna are discussed. According to an embodiment, the antenna can include a flexible board having a first region and a second region; a high frequency antenna pattern formed in the first region of the flexible board to transceive a wireless signal by detecting a magnetic flux; a low frequency antenna pattern formed in the second region of the flexible board to generate an induced current; and a magnetic sheet stacked on one surface of the flexible board to simultaneously cover both of the high frequency antenna pattern and the low frequency antenna pattern, the magnetic sheet having a high magnetic permeability for both a high frequency and a low frequency.

Abstract translation: 讨论了具有天线的天线和移动终端。 根据实施例，天线可以包括具有第一区域和第二区域的柔性板; 形成在柔性板的第一区域中的高频天线图案，以通过检测磁通来收发无线信号; 形成在柔性板的第二区域中的低频天线图案，以产生感应电流; 以及堆叠在柔性板的一个表面上以同时覆盖高频天线图案和低频天线图案两者的磁性片，磁片具有高频率和低频率的高磁导率。