公开(公告)号：US20120219084A1

公开(公告)日：2012-08-30

申请号：US13503301

申请日：2010-10-26

Applicant: Bin Chul Ihm ,  Ji Won Kang ,  Sung Ho Park ,  Wook Bong Lee ,  Moon Il Lee

Inventor： Bin Chul Ihm ,  Ji Won Kang ,  Sung Ho Park ,  Wook Bong Lee ,  Moon Il Lee

IPC: H04B7/04

CPC classification number: H04B7/0617 ,  H04B7/0417 ,  H04B7/061 ,  H04B7/063 ,  H04B7/0665 ,  H04B7/0691

Abstract: The present invention relates to a method for sending a data signal from a transmitter to a receiver in a multiple antenna wireless communication system. In particular, the method comprises: sending information about the number of transmission antennas of the transmitter to the receiver; receiving from the receiver information about the number of effective communication links of the transmitter and the receiver; determining a precoding matrix based on the information about the number of effective communication links; and receiving from the receiver the data signal using the precoding matrix, wherein transmission antennas of the transmitter and receiving antennas of the receiver respectively form effective communication links independent of each other.

Abstract translation: 本发明涉及一种在多天线无线通信系统中从发射机向接收机发送数据信号的方法。 特别地，该方法包括：向接收机发送关于发射机的发送天数的信息; 从接收机接收关于发射机和接收机的有效通信链路数量的信息; 基于有关通信链路的数量的信息来确定预编码矩阵; 并且使用所述预编码矩阵从所述接收机接收所述数据信号，其中所述发射机的发射天线和所述接收机的接收天线分别独立地形成有效的通信链路。

公开(公告)号：US20120189041A1

公开(公告)日：2012-07-26

申请号：US13439828

申请日：2012-04-04

Applicant: Hyun Soo KO ,  Bin Chul IHM ,  Jin Young CHUN ,  Wook Bong LEE ,  Jae Hoon CHUNG ,  Jae Won CHANG ,  Jin Hyuk JUNG ,  Moon Il LEE ,  Seung Hee HAN

Inventor： Hyun Soo KO ,  Bin Chul IHM ,  Jin Young CHUN ,  Wook Bong LEE ,  Jae Hoon CHUNG ,  Jae Won CHANG ,  Jin Hyuk JUNG ,  Moon Il LEE ,  Seung Hee HAN

IPC: H04B7/02

CPC classification number: H04B7/0613 ,  H04B7/0413 ,  H04B7/0684 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0224 ,  H04L25/0226

Abstract: A user equipment (UE) receiving a plurality of reference signals in a wireless multiple-input multiple-output (MIMO) communication system includes a transceiver configured for receiving the plurality of reference signals for multiple antennas in a sub-frame, the sub-frame including a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain over a plurality of sub-carriers in a frequency domain. A first array is repeated in the frequency domain on a first OFDM symbol of the sub-frame, a second array is repeated in the frequency domain on a second OFDM symbol of the sub-frame and a third array is repeated in the frequency domain on a third OFDM symbol of the sub-frame, and each of the first, second and third arrays consists of six contiguous symbols in the frequency domain.

Abstract translation: 在无线多输入多输出（MIMO）通信系统中接收多个参考信号的用户设备（UE）包括：收发器，被配置为在子帧中接收多个天线的多个参考信号，子帧 包括在频域中的多个子载波上的时域中的多个正交频分复用（OFDM）符号。 在子帧的第一OFDM符号上的频域中重复第一阵列，在子帧的第二OFDM符号上在频域中重复第二阵列，并且在频域上重复第三阵列 子帧的第三OFDM符号，并且第一，第二和第三阵列中的每一个由频域中的六个相邻符号组成。

公开(公告)号：US08218662B2

公开(公告)日：2012-07-10

申请号：US12421904

申请日：2009-04-10

Applicant: Jin Soo Choi ,  Wook Bong Lee ,  Han Gyu Cho ,  Jin Sam Kwak ,  Bin Chul Ihm

Inventor： Jin Soo Choi ,  Wook Bong Lee ,  Han Gyu Cho ,  Jin Sam Kwak ,  Bin Chul Ihm

IPC: H04L27/28

CPC classification number: H04L5/0023 ,  H04L1/0606 ,  H04L1/0618 ,  H04L5/0007 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/0048

Abstract: A method and device for wirelessly communicating between a mobile communication terminal and a base station, including exchanging one or more resource units between the base station and the mobile communication terminal, each resource unit having 18 subcarriers by a plurality of Orthogonal Frequency Division Multiple Access (OFDMA) symbols. The one or more resource units are permutated using X contiguous subcarriers as a permutation unit in each OFDMA symbol, wherein X is a positive integer that is a multiple of 2 as well as a divisor of 18.

Abstract translation: 一种用于在移动通信终端和基站之间进行无线通信的方法和装置，包括在基站与移动通信终端之间交换一个或多个资源单元，每个资源单元通过多个正交频分多址（ OFDMA）符号。 使用X个相邻子载波作为每个OFDMA符号中的置换单元来排列一个或多个资源单元，其中X是2的倍数的正整数以及除数18。

公开(公告)号：US08208576B2

公开(公告)日：2012-06-26

申请号：US13109962

申请日：2011-05-17

Applicant: Bin Chul Ihm ,  Wook Bong Lee ,  Moon Il Lee ,  Jin Young Chun

Inventor： Bin Chul Ihm ,  Wook Bong Lee ,  Moon Il Lee ,  Jin Young Chun

IPC: H04B7/02

CPC classification number: H04B7/0417 ,  H04B7/0465 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/066 ,  H04B7/0671 ,  H04L1/06 ,  H04L1/1893 ,  H04L5/0023 ,  H04L5/0044 ,  H04L25/0204 ,  H04L25/0242 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

Abstract: A method for performing a precoding based on a generalized phase shift or a precoding based on an extended phase shift in a Multi-Input Multi-Output (MIMO) system employing several sub-carriers, and a transceiver for supporting the same are disclosed. A phase-shift-based precoding matrix is generalized by multiplying a diagonal matrix for a phase shift by a unitary matrix for maintaining orthogonality between sub-carriers. In this case, a diagonal matrix part may be extended by multiplying a precoding matrix for removing an interference between sub-carriers by a diagonal matrix for a phase shift. By generalization and extension of the phase-shift-based precoding, a transceiver is more simplified, and a communication efficiency increases.

Abstract translation: 公开了一种用于在采用多个子载波的多输入多输出（MIMO）系统中基于广义相移或基于扩展相移的预编码进行预编码的方法，以及用于支持它的收发器。 基于相移的预编码矩阵通过将用于相移的对角矩阵乘以酉矩阵来推广，以维持子载波之间的正交性。 在这种情况下，对角矩阵部分可以通过将用于去除副载波之间的干扰的预编码矩阵乘以用于相移的对角矩阵来扩展。 通过基于相移的预编码的泛化和扩展，收发器被更加简化，并且通信效率增加。

公开(公告)号：US08194778B2

公开(公告)日：2012-06-05

申请号：US13056635

申请日：2009-07-29

Applicant: Hyun Soo Ko ,  Jin Young Chun ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

Inventor： Hyun Soo Ko ,  Jin Young Chun ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

IPC: H04B7/02

CPC classification number: H04B7/0413

Abstract: A method of sending data in a multiple antenna system includes the steps of generating a transmission signal by applying channel-dependent precoding to a first antenna cluster and a second antenna cluster, each comprising a plurality of antennas, wherein the channel-dependent precoding is performed by a precoding weight matrix in which a precoding weight for each of the antenna clusters has a block diagonal form and the precoding weight is represented by P×V for a number of transmission antennas P, included in each of the antenna clusters, and a number of layers V applied to each of the antenna clusters (P and V are an integer greater than 0) and sending the transmission signal.

Abstract translation: 在多天线系统中发送数据的方法包括以下步骤：通过对第一天线簇和第二天线簇应用与频道相关的预编码来产生发射信号，每个天线簇包括多个天线，其中执行与频道相关的预编码 通过预编码权重矩阵，其中每个天线簇的预编码权重具有块对角线形式，并且对于包括在每个天线簇中的多个发射天线P，并且预编码权重由P×V表示，并且数字 的层V施加到每个天线簇（P和V是大于0的整数）并发送发送信号。

公开(公告)号：US08179819B2

公开(公告)日：2012-05-15

申请号：US12318437

申请日：2008-12-29

Applicant: Jae Wan Kim ,  Wook Bong Lee ,  Su Nam Kim ,  Dong Guk Lim ,  Bin Chul Ihm

Inventor： Jae Wan Kim ,  Wook Bong Lee ,  Su Nam Kim ,  Dong Guk Lim ,  Bin Chul Ihm

IPC: H04W72/00 ,  H04W72/04 ,  H04W28/12 ,  H04W24/02

CPC classification number: H04W72/02 ,  H04B7/024 ,  H04B7/026 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0495 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B17/345 ,  H04L1/0026 ,  H04L25/03904 ,  H04W24/02

Abstract: A method for reducing inter-cell interference and a method for transmitting a signal by a collaborative MIMO scheme, in a communication system having a multi-cell environment are disclosed. An example of a method for transmitting, by a mobile station, precoding information in a collaborative MIMO communication system includes determining a precoding matrix set including precoding matrices of one more base stations including a serving base station, based on signal strength of the serving base station, and transmitting information about the precoding matrix set to the serving base station. A mobile station in an edge of a cell performs a collaborative MIMO mode or inter-cell interference mitigation mode using the information about the precoding matrix set collaboratively with neighboring base stations.

Abstract translation: 公开了一种在具有多小区环境的通信系统中减少小区间干扰的方法和通过协作MIMO方案发送信号的方法。 用于由移动站发送协作MIMO通信系统中的预编码信息的方法的示例包括基于服务基站的信号强度来确定包括包括服务基站的多个基站的预编码矩阵的预编码矩阵集合 并且将关于预编码矩阵集的信息发送到服务基站。 小区边缘的移动台使用与相邻基站协作的关于预编码矩阵集的信息执行协同MIMO模式或小区间干扰减轻模式。

公开(公告)号：US20120113861A1

公开(公告)日：2012-05-10

申请号：US13384204

申请日：2010-07-30

Applicant: Jin Young Chun ,  Wook Bong Lee ,  Bin Chul Ihm

Inventor： Jin Young Chun ,  Wook Bong Lee ,  Bin Chul Ihm

IPC: H04W24/00 ,  H04L12/26

CPC classification number: H04L25/03343 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0048 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: A method and an apparatus for feedback transmission in a wireless communication system are provided. A terminal receives information about a short-term feedback period and a long-term feedback period from a base station, and then transmits to the base station short-term feedback information per short-term feedback period or long-term feedback information per long-term feedback period over a primary fast feedback channel (PFBSCH). The long-term feedback information contains an index of a subband subjected to channel measurement and a difference in measurement values that is a difference between a reference channel measurement value and a channel measurement value being measured.

Abstract translation: 提供了一种用于无线通信系统中的反馈传输的方法和装置。 终端从基站接收关于短期反馈时段和长期反馈时段的信息，然后根据短期反馈时段或长期反馈信息向基站发送短期反馈信息， 主要快速反馈信道（PFBSCH）的短期反馈周期。 长期反馈信息包含经过信道测量的子带的索引和作为被测量的信道测量值之间的差的测量值的差异。

公开(公告)号：US08175182B2

公开(公告)日：2012-05-08

申请号：US12312255

申请日：2007-11-02

Applicant: Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee ,  Hyun Soo Ko ,  Jae Won Chang

Inventor： Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee ,  Hyun Soo Ko ,  Jae Won Chang

IPC: H04L1/02

CPC classification number: H04B7/0682 ,  H04B7/0417 ,  H04B7/0465 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0671 ,  H04L27/2626

Abstract: A method of transmitting data using cyclic delay in a multi-antenna system using a plurality of subcarriers and a transceiver supporting the same are disclosed. More particularly, a method of selecting a matrix (second matrix) for transforming a precoding matrix (first matrix) into a unitary matrix from a codebook by a prescribed reference is disclosed. An index for selecting the second matrix is calculated by a prescribed modulo operation in an open loop system or delivered as feedback information in a closed loop system. Diversity can be obtained by switching each column of the selected second matrix in accordance with time. In a multi-user system, a single second matrix can be determined by combining columns of the second matrix selected by each user.

Abstract translation: 公开了一种使用多个子载波在多天线系统中使用循环延迟发送数据的方法以及支持其的收发机。 更具体地，公开了一种选择用于将预编码矩阵（第一矩阵）从码本转换为规定参考的酉矩阵的矩阵（第二矩阵）的方法。 用于选择第二矩阵的索引通过在开环系统中的规定的模运算来计算，或者作为闭环系统中的反馈信息递送。 通过根据时间切换所选择的第二矩阵的每列，可以获得分集。 在多用户系统中，可以通过组合由每个用户选择的第二矩阵的列来确定单个第二矩阵。

公开(公告)号：US20120106534A1

公开(公告)日：2012-05-03

申请号：US13347458

申请日：2012-01-10

Applicant: Jin Soo CHOI ,  Han Gyu CHO ,  Bin Chul IHM ,  Wook Bong LEE

Inventor： Jin Soo CHOI ,  Han Gyu CHO ,  Bin Chul IHM ,  Wook Bong LEE

IPC: H04B7/208 ,  H04W92/00

CPC classification number: H04L5/0023 ,  H04L5/0048 ,  H04L5/005

Abstract: A method for allocating pilot subcarriers in a resource block for a wideband wireless mobile communication system using an orthogonal frequency division multiplexing (OFDMA) modulation is discussed. In this method, pilot subcarriers are allocated in the resource block so that a group of consecutive data subcarriers separated from adjacent other group of consecutive data subcarriers by the pilot subcarriers has even number of subcarriers within an OFDMA symbol.

Abstract translation: 讨论了使用正交频分复用（OFDMA）调制在宽带无线移动通信系统的资源块中分配导频子载波的方法。 在该方法中，在资源块中分配导频子载波，使得由导频子载波与相邻的其他连续数据子载波组分离的连续数据副载波组在OFDMA符号内具有偶数子载波。

公开(公告)号：US20120027123A1

公开(公告)日：2012-02-02

申请号：US13264739

申请日：2010-04-13

Applicant: Wook Bong Lee ,  Han Gyu Cho ,  Sung Ho Moon ,  Jin Sam Kwak ,  Bin Chul Ihm ,  Min Seok Noh

Inventor： Wook Bong Lee ,  Han Gyu Cho ,  Sung Ho Moon ,  Jin Sam Kwak ,  Bin Chul Ihm ,  Min Seok Noh

IPC: H04L27/04

CPC classification number: H04L5/0007 ,  H04L5/0037 ,  H04L5/0058 ,  H04L27/2602 ,  H04W72/0446

Abstract: The present invention relates to a method for transmitting and receiving data in a wireless communication system. The method for transmitting data in a wireless communication system, according to one aspect of the present invention, comprises a step in which a base station transmits downlink data to a first terminal which supports a first system via a first region of a frame, and transmits downlink data to a second terminal which supports a second system via a second region which follows the first region corresponding to a frame offset on a time axis, wherein said frame offset is an offset of the start point of the frame for said first system and the start point of the frame for said second system, and said first region includes 3+6 (said frame offset-1) OFDM symbols.

Abstract translation: 本发明涉及一种在无线通信系统中发送和接收数据的方法。 根据本发明的一个方面，在无线通信系统中发送数据的方法包括以下步骤：基站经由帧的第一区域向支持第一系统的第一终端发送下​​行链路数据，并发送 下行链路数据到第二终端，第二终端经由跟随在时间轴上的帧偏移的第一区域的第二区域支持第二系统，其中所述帧偏移是所述第一系统的帧起始点的偏移量， 所述第二系统的帧的起始点，并且所述第一区域包括3 + 6（所述帧偏移-1）OFDM符号。