公开(公告)号：US20110026637A1

公开(公告)日：2011-02-03

申请号：US12847998

申请日：2010-07-30

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

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

IPC: H04L27/00

CPC classification number: H04L5/0048 ,  H04L5/0023 ,  H04L25/03343 ,  H04W52/16 ,  H04W52/325

Abstract: A method and apparatus for transmitting a pilot signal in a Multiple Input Multiple Output (MIMO) wireless communication system are disclosed. The method sets a power of pilot signal to be transmitted in a pilot pattern according to a predefined ratio of a total power of the pilot signal to a total power of data tones being transmitted together with the pilot signal on a subframe.

Abstract translation: 公开了一种用于在多输入多输出（MIMO）无线通信系统中发送导频信号的方法和装置。 该方法根据导频信号的总功率与子帧上的导频信号一起发送的数据音调的总功率的预定比率，设定要以导频模式发送的导频信号的功率。

公开(公告)号：US07881395B2

公开(公告)日：2011-02-01

申请号：US11858082

申请日：2007-09-19

Applicant: Moon II Lee ,  Bin Chul Ihm ,  Jae Wan Kim ,  Sung Ho Park ,  Wook Bong Lee

Inventor： Moon II Lee ,  Bin Chul Ihm ,  Jae Wan Kim ,  Sung Ho Park ,  Wook Bong Lee

IPC: H04B7/02

CPC classification number: H04B7/0671 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/1816 ,  H04L5/0023 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  Y02D50/10

Abstract: A method of transmitting data using a plurality of subcarriers in a multi-antenna wireless communication system is disclosed. More specifically, the method includes receiving feedback information from a mobile station (MS), performing channel encoding and modulation independently on user data to be transmitted by each antenna using the received feedback information, determining a phase shift-based precoding matrix for increasing a phase angle of the user data by a fixed amount, and performing precoding using the determined phase shift-based precoding matrix on the user data.

Abstract translation: 公开了一种在多天线无线通信系统中使用多个子载波发送数据的方法。 更具体地说，该方法包括从移动台（MS）接收反馈信息，对使用接收到的反馈信息的每个天线要发送的用户数据独立地进行信道编码和调制，确定用于增加相位的基于相移的预编码矩阵 用户数据的角度固定的量，以及使用所确定的基于相移的预编码矩阵对用户数据执行预编码。

公开(公告)号：US20100311349A1

公开(公告)日：2010-12-09

申请号：US12793349

申请日：2010-06-03

Applicant: Ja Ho Koo ,  Wook Bong Lee ,  Su Nam Kim ,  Bin Chul Ihm ,  Hyun Soo Ko

Inventor： Ja Ho Koo ,  Wook Bong Lee ,  Su Nam Kim ,  Bin Chul Ihm ,  Hyun Soo Ko

IPC: H04B17/00

CPC classification number: H04W16/02 ,  H04W72/082

Abstract: A method for estimating channel state in a wireless communication system and a mobile station using the same are disclosed. The method includes acquiring cell Identifiers (IDs) of a serving cell and one or more neighbor cells, acquiring information about preset power level patterns for one or more frequency partitions to which FFR is applied according to the cell IDs, and estimating a channel state of the serving cell based on the power level pattern information.

Abstract translation: 公开了一种用于估计无线通信系统中的信道状态的方法和使用其的移动台。 该方法包括获取服务小区和一个或多个相邻小区的小区标识符（ID），根据小区ID获取关于应用了FFR的一个或多个频率分区的预设功率级别模式的信息，以及估计信道状态 基于功率电平图案信息的服务小区。

公开(公告)号：US20100298031A1

公开(公告)日：2010-11-25

申请号：US12849635

申请日：2010-08-03

Applicant: Seung Hee Han ,  Jin Young Chun ,  Wook Bong Lee ,  Min Seok Noh ,  Jin Sam Kwak ,  Yeong Hyeon Kwon ,  Hyun Woo Lee ,  Jin Soo Choi ,  Dong Cheol Kim ,  Sung Ho Moon ,  Bin Chul Ihm ,  Moon Il Lee

Inventor： Seung Hee Han ,  Jin Young Chun ,  Wook Bong Lee ,  Min Seok Noh ,  Jin Sam Kwak ,  Yeong Hyeon Kwon ,  Hyun Woo Lee ,  Jin Soo Choi ,  Dong Cheol Kim ,  Sung Ho Moon ,  Bin Chul Ihm ,  Moon Il Lee

IPC: H04W88/02 ,  H04W88/08

CPC classification number: H04W72/042 ,  H04J11/0069 ,  H04L27/2614 ,  H04W72/0413 ,  H04W72/0453 ,  H04W74/002 ,  H04W80/02 ,  H04W88/02 ,  H04W88/08

Abstract: A method for transmitting an information unit of a specific layer above a physical layer through a plurality of frequency allocation bands managed by the specific layer and transmitting control information identifying each of the plurality of frequency allocation bands. The control information includes a second ID into which a first ID has been converted, the first ID identifying each of the plurality of frequency allocation bands in the physical layer, the second ID identifying each of the plurality of frequency allocation bands managed by the specific layer in the specific layer. To accomplish this, a timing offset is applied to the entirety of a frame or to a preamble (synchronous channel) so that the timing offset is used as the ID. Applying a timing offset to the entirety of a frame or to a preamble (synchronous channel) can achieve an advantage of PAPR reduction.

Abstract translation: 一种用于通过由特定层管理的多个频率分配频带来发送物理层之上的特定层的信息单元的方法，并发送识别多个频率分配频带中的每一个的控制信息。 所述控制信息包括第一ID被转换成了第一ID，所述第一ID标识所述物理层中的所述多个频率分配频带中的每一个，所述第二ID识别由所述特定层管理的所述多个频率分配频带中的每一个 在特定层。 为了实现这一点，将定时偏移应用于帧的全部或前同步信道（同步信道），使得定时偏移被用作ID。 将时序偏移应用于帧或前导码（同步信道）的整体可以实现PAPR减少的优点。

公开(公告)号：US07835260B2

公开(公告)日：2010-11-16

申请号：US12298219

申请日：2007-04-20

Applicant: Jin Young Chun ,  Jae Won Chang ,  Jin Hyuk Jung ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

Inventor： Jin Young Chun ,  Jae Won Chang ,  Jin Hyuk Jung ,  Moon Il Lee ,  Bin Chul Ihm ,  Wook Bong Lee

IPC: H04J11/00

CPC classification number: H04B7/0634 ,  H04B7/028 ,  H04B7/0434 ,  H04B7/0452 ,  H04B7/12

Abstract: This document is related to a method for receiving signals in multi-user system, the method comprising: receiving signals form 2 or more mobile stations using ‘k’-th radio resource and ‘k+m’-th radio resource; estimating a channel matrix using the received signals; calculating a weight matrix so that the channel matrix have an orthogonality to the signals from each of the mobile stations; transmitting the weight matrix to each of the mobile stations; and receiving signals that the weight matrix is applied by each of the mobile stations. By doing so, we can increase the transmission efficiency through obtaining both orthogonality and diversity gain in the multi-user MIMO system.

Abstract translation: 本文件涉及一种用于在多用户系统中接收信号的方法，所述方法包括：使用第k个无线电资源和第k + m个无线电资源从2个或更多的移动台接收信号; 使用所接收的信号估计信道矩阵; 计算权重矩阵，使得信道矩阵具有来自每个移动站的信号的正交性; 将权重矩阵发送到每个移动站; 以及接收每个移动台应用权重矩阵的信号。 通过这样做，我们可以通过在多用户MIMO系统中获得正交性和分集增益来提高传输效率。

公开(公告)号：US20100254272A1

公开(公告)日：2010-10-07

申请号：US12448677

申请日：2008-03-28

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

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

IPC: H04J1/16 ,  H04W4/00

CPC classification number: H04L1/0029 ,  H04L1/0027 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/006

Abstract: A method of transmitting channel quality indicator (CQI) includes obtaining CQI of each, of the plurality of sub-bands, selecting a first sub-band having the best CQI of the plurality of sub- bands, transmitting the best CQI of the first sub-band at a first transmission cycle and transmitting a difference value between the best CQI of the first sub-band and a CQI of the first sub-band at a second transmission cycle. Signalling overhead due to CQI transmission can be reduced.

Abstract translation: 发送信道质量指示符（CQI）的方法包括获得多个子带中的每一个的CQI，选择具有多个子带中最佳CQI的第一子带，发送第一子带的最佳CQI 在第一传输周期发送第一子带的最佳CQI和第一子带的CQI之间的差值，并以第二传输周期发送。 可以减少由CQI传输引起的信令开销。

公开(公告)号：US20100239036A1

公开(公告)日：2010-09-23

申请号：US12726730

申请日：2010-03-18

Applicant: Ja Ho Koo ,  Wook Bong Lee ,  Jae Hoon Chung ,  Bin Chul Ihm ,  Hyun Soo Ko

Inventor： Ja Ho Koo ,  Wook Bong Lee ,  Jae Hoon Chung ,  Bin Chul Ihm ,  Hyun Soo Ko

IPC: H04L27/28

CPC classification number: H04B7/0417 ,  H04B7/024 ,  H04B7/0634 ,  H04B7/0639 ,  H04L1/0026 ,  H04L5/0035

Abstract: A method and apparatus for transmitting a Precoding Matrix Index (PMI) in a Coordinated Multi-Point (COMP) communication system are disclosed. The method includes receiving signals in a same frequency band from Base Stations (BSs) included in a CoMP set, which operate in joint processing mode, selecting a first precoding matrix for each of the BSs using the received signals, generating a second precoding matrix by combining the first precoding matrices, and transmitting an index of the second precoding matrix to a serving BS among the BSs.

Abstract translation: 公开了一种在协调多点（COMP）通信系统中发送预编码矩阵索引（PMI）的方法和装置。 该方法包括从包括在CoMP集合中的基站（BS）的相同频带接收信号，其以联合处理模式工作，使用接收到的信号为每个BS选择第一预编码矩阵，通过以下步骤生成第二预编码矩阵： 组合所述第一预编码矩阵，并将所述第二预编码矩阵的索引发送到所述BS中的服务BS。

公开(公告)号：US20100208610A1

公开(公告)日：2010-08-19

申请号：US12709364

申请日：2010-02-19

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

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

IPC: H04J1/16

CPC classification number: H04W16/10 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0062 ,  H04L5/0073 ,  H04W16/30 ,  H04W72/082

Abstract: A method of transmitting and receiving feedback information in a multi-cell based wireless communication system using FFR, a mobile station apparatus therefore and a base station apparatus therefore are disclosed. A mobile station is able to obtain FFR configuration information including configuration information on at least one frequency partition to which a corresponding FFR is applied per cell ID. And, the mobile station is able to transmit PMI information to a serving base station using the obtained FFR configuration information. In this case, the PMI information is specifically restricted or recommended by the mobile station among PMIs (precoding matrix indexes) used by at least one neighbor cell in an allocated specific frequency partition.

Abstract translation: 因此，公开了一种在使用FFR的基于多小区的无线通信系统中发送和接收反馈信息的方法，因此，移动站装置和基站装置。 移动站能够获得包括对每个小区ID应用相应的FFR的至少一个频率分区的配置信息的FFR配置信息。 并且，移动站能够使用获得的FFR配置信息向服务基站发送PMI信息。 在这种情况下，由所分配的特定频率分区中的至少一个相邻小区使用的PMI（预编码矩阵索引）中的移动台具体限制或推荐PMI信息。

公开(公告)号：US20100183057A1

公开(公告)日：2010-07-22

申请号：US12676110

申请日：2008-09-05

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

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

IPC: H04B1/38 ,  H04L27/00

CPC classification number: H04B7/0417 ,  H04B7/0478 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0029 ,  H04L1/06 ,  H04L5/0023

Abstract: A method for transmitting a multiple codeword (MCW) in a Multiple Input Multiple Output (MIMO) communication system is disclosed. A method for transmitting a multiple codeword (MCW) in a Multiple-Input Multiple-Output (MIMO) communication system includes performing a channel coding and modulation process for each codeword of the multiple codeword (MCW), multiplying the channel-coded-modulated result by a rotation matrix decided by either a spatial multiplexing rate or a layer (R), and performing a codeword permutation (CP) on the multiple codeword (MCW), performing a MIMO encoding on the multiple codeword (MCW), and transmitting the multiple codeword (MCW) via a multi-antenna.

Abstract translation: 公开了一种在多输入多输出（MIMO）通信系统中发送多码字（MCW）的方法。 一种用于在多输入多输出（MIMO）通信系统中发送多码字（MCW）的方法包括对多码字（MCW）的每个码字进行信道编码和调制处理，将信道编码调制结果 通过由空间复用速率或层（R）决定的旋转矩阵，以及在所述多个码字（MCW）上执行码字排列（CP），对所述多个码字（MCW）执行MIMO编码，并且发送所述多个 码字（MCW）。

公开(公告)号：US20100177842A1

公开(公告)日：2010-07-15

申请号：US12440419

申请日：2007-10-18

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

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

IPC: H04L27/28

CPC classification number: H04L25/0228 ,  H04L1/0026 ,  H04L1/004 ,  H04L1/08 ,  H04L1/1607 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0226

Abstract: A data transmission method includes encoding information bits to generate a codeword including a plurality of data symbols, the sum of the plurality of data symbols of the codeword being equal to zero, multiplexing a data symbol and a pilot with a subcarrier and transmitting multiplexed data symbol and pilot through the subcarrier. Since a data symbol and a pilot are multiplexed together to a subcarrier, channel estimation performance can be improved.

Abstract translation: 数据传输方法包括：对信息比特进行编码以产生包括多个数据符号的码字，码字的多个数据符号的和等于零，将数据符号和导频与子载波进行多路复用，并发送多路复用的数据符号 并通过子载波进行导频。 由于数据符号和导频被复用在副载波上，所以可以提高信道估计性能。