公开(公告)号：US20050174262A1

公开(公告)日：2005-08-11

申请号：US11031529

申请日：2005-01-10

Applicant: Jun Lee ,  Joo-hyun Lee ,  Kyu-suk Lee ,  Jae-jin Lee

Inventor： Jun Lee ,  Joo-hyun Lee ,  Kyu-suk Lee ,  Jae-jin Lee

IPC: G11B20/10 ,  G11B20/14 ,  H03M5/14 ,  H03M7/00

CPC classification number: H03M5/145 ,  G11B20/1426 ,  G11B2020/1434 ,  G11B2020/1446

Abstract: Provided are a rate 13/15 MTR code encoding/decoding method and apparatus. The encoding method includes: generating a predetermined rate-13/15 MTR code in which 13-bit data corresponds to 15-bit data; outputting input 13-bit data as a 15-bit codeword according to the rate-13/15 MTR code; checking whether codewords satisfy a predetermined constraint condition by connecting the 15-bit codeword and a subsequent 15-bit codeword; and converting specific bits of the codewords if the codewords violate the constraint condition and not converting the codewords if the codewords do not violate the constraint condition. The rate-13/15 MTR (j=2, k=8) code includes: 8192 codewords obtained to prevent the number of consecutive transitions from becoming 3 at code boundaries in a modulation coding process. Data can be reliably reproduced with high write density, and a large amount of data can be stored in and reproduced from a magnetic recording information storage medium.

Abstract translation: 提供了一种速率13/15的MTR码编码/解码方法和装置。 编码方法包括：生成13比特数据对应于15比特数据的预定速率-13 / 15MTR码; 根据速率-13 / 15MTR码输出13位数据作为15位码字; 通过连接15位码字和随后的15位码字来检查码字是否满足预定约束条件; 以及如果所述码字违反所述约束条件并且如果所述码字不违反所述约束条件则不转换所述码字，则转换所述码字的特定比特。 速率-13 / 15MTR（j = 2，k = 8）码包括：8192个码字，用于防止在调制编码过程中在码边界处连续转换的数量变为3。 可以以高写入密度可靠地再现数据，并且可以将大量数据存储在磁记录信息存储介质中并从磁记录信息存储介质再现。

公开(公告)号：US09240771B2

公开(公告)日：2016-01-19

申请号：US13368656

申请日：2012-02-08

Applicant: Joo-Hyun Lee ,  Sung-Kwon Jo ,  Ha-Young Yang

Inventor： Joo-Hyun Lee ,  Sung-Kwon Jo ,  Ha-Young Yang

IPC: H03H17/06 ,  H04B1/00

CPC classification number: H03H17/0685 ,  H03H17/0628 ,  H04B1/0017 ,  H04B1/0021

Abstract: A method of generating a signal having a converted sampling rate in a communication system is provided. The method includes selecting effective input samples among S number of input samples included in an input stream corresponding to an input sampling rate, generating a filter coefficient set including filter coefficients having a length of a second tap, the filter coefficients having the length of the second tap being generated by dividing a filter coefficient having a length of a first tap configuring a low-pass filter into the filter coefficients having the length of the second tap corresponding to a number of selected effective input samples, selecting filter coefficients corresponding to each of the effective input samples among the filter coefficients included in the filter coefficient set, and outputting output samples having an output sampling rate which is converted from the input sampling rate.

Abstract translation: 提供一种在通信系统中产生具有转换采样率的信号的方法。 该方法包括：选择包含在与输入采样率相对应的输入流中的S个输入样本之间的有效输入样本，生成包括具有第二抽头长度的滤波器系数的滤波器系数组，滤波器系数具有第二 通过将具有构成低通滤波器的第一抽头的长度的滤波器系数除以对应于所选择的有效输入样本的数量的具有第二抽头的长度的滤波器系数来生成抽头，选择与每个 包括在滤波器系数组中的滤波器系数中的有效输入样本，并且输出具有从输入采样率转换的输出采样率的输出采样。

公开(公告)号：US08385446B2

公开(公告)日：2013-02-26

申请号：US12384156

申请日：2009-04-01

Applicant: Jong-Ho Lee ,  Joo-Hyun Lee ,  Sung-Hwan Kim ,  Jong-Hyeuk Lee ,  Sung-Yoon Jung ,  Chungyong Lee ,  Jaesang Ham ,  Myoung-Seok Kim

Inventor： Jong-Ho Lee ,  Joo-Hyun Lee ,  Sung-Hwan Kim ,  Jong-Hyeuk Lee ,  Sung-Yoon Jung ,  Chungyong Lee ,  Jaesang Ham ,  Myoung-Seok Kim

IPC: H04L5/12

CPC classification number: H04L27/2614 ,  H04L5/0007 ,  H04L25/0202 ,  H04L25/03178 ,  H04L25/0321 ,  H04L25/03229

Abstract: A receiving apparatus and method of a Maximum Likelihood (ML) scheme in a Single-Carrier (SC) system are provided. The apparatus includes at least two antennas, at least two Orthogonal Frequency Division Multiplexing (OFDM) demodulators, at least two subcarrier mappers, at least two OFDM modulators, and a detector. The antennas receive signals. The OFDM demodulators convert the signals into frequency domain signals. The subcarrier mappers confirm signals mapped to frequency domain subcarriers. The OFDM modulators convert the signals into time domain signals. The detector constructs at least one set for candidate transmission symbols and detects receive signals through ML detection using the set.

公开(公告)号：US08374543B2

公开(公告)日：2013-02-12

申请号：US13242670

申请日：2011-09-23

Applicant: Suk-Seung Hwang ,  Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon

Inventor： Suk-Seung Hwang ,  Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon

IPC: H04W88/02

CPC classification number: G01S5/0205 ,  G01S5/0018 ,  G01S5/0273 ,  G01S5/10 ,  H04B7/155 ,  H04B7/2606 ,  H04L27/2647 ,  H04W56/00 ,  H04W64/00

Abstract: An apparatus and method for location estimation in a wireless communication system are provided. The method includes identifying if a received at least one signal passed through at least one repeater, when the received at least one signal is identified as having passed through at least one repeater, measuring a Base Station (BS) basis delay time and calculating a repeater basis delay time using the measured BS basis delay time, and estimating a location of the Mobile Station (MS) using the repeater basis delay time.

Abstract translation: 提供了一种用于无线通信系统中的位置估计的装置和方法。 所述方法包括：当所接收的至少一个信号被识别为已经通过至少一个中继器时，识别接收到的至少一个信号是否经过至少一个中继器，测量基站（BS）基延迟时间并计算中继器 使用所测量的基站延迟时间的基准延迟时间，以及使用中继器基础延迟时间估计移动站（MS）的位置。

公开(公告)号：US08275076B2

公开(公告)日：2012-09-25

申请号：US12386299

申请日：2009-04-16

Applicant: Sung-Yoon Jung ,  Sung-Soo Hwang ,  Joo-Hyun Lee ,  Jong-Ho Lee ,  Sung-Hwan Kim ,  Jong-Soo Seo ,  Jong-Kyung Kim ,  Jin-Yong Choi

Inventor： Sung-Yoon Jung ,  Sung-Soo Hwang ,  Joo-Hyun Lee ,  Jong-Ho Lee ,  Sung-Hwan Kim ,  Jong-Soo Seo ,  Jong-Kyung Kim ,  Jin-Yong Choi

IPC: H04L27/06

CPC classification number: H04B7/0854 ,  H04L25/03038

Abstract: Provided are a receiver and a method for detecting a signal in a multiple antenna system. The receiver includes a filter coefficient calculator and a signal detector. After separating a first signal portion and a second signal portion, the filter coefficient calculator calculates an MMSE filter coefficient using a Matrix Inversion Lemma such that an inverse matrix of the first signal portion has a predetermined constant value regardless of a repetition signal detection process. The signal detector detects a relevant transmission signal from an interference-removed reception signal using the MMSE filter coefficient.

Abstract translation: 提供了一种用于检测多天线系统中的信号的接收机和方法。 接收机包括滤波器系数计算器和信号检测器。 在分离第一信号部分和第二信号部分之后，滤波器系数计算器使用矩阵反转引理来计算MMSE滤波器系数，使得第一信号部分的逆矩阵具有预定的常数值，而与重复信号检测处理无关。 信号检测器使用MMSE滤波器系数从去除干扰的接收信号检测相关的发送信号。

公开(公告)号：US08180003B2

公开(公告)日：2012-05-15

申请号：US12287091

申请日：2008-10-06

Applicant: Yajun Kou ,  Joo-Hyun Lee ,  Sang-Boh Yun

Inventor： Yajun Kou ,  Joo-Hyun Lee ,  Sang-Boh Yun

IPC: H04K1/10 ,  H04L27/28

CPC classification number: H04B7/0417 ,  H04B7/0632

Abstract: The generation of per stream Channel Quality Information (CQI) in a Multiple-Input Multiple-Output (MIMO) wireless communication system is provided. An apparatus includes a receiver for receiving signals from a transmitting end via a plurality of antennas; an estimator for estimating channels per antenna in relation with the transmitting end using the received signals and constituting a channel matrix; and a generator for deriving per stream effective noise when a lattice reduction scheme is adopted and generating per stream CQI using the per stream effective noise. Thus, feedback information for a Closed Loop (CL) MIMO system can be produced by generating the per stream CQI using the effective noise obtained through the lattice reduction.

Abstract translation: 提供了在多输入多输出（MIMO）无线通信系统中每个流的信道质量信息（CQI）的生成。 一种装置，包括：接收机，用于经由多个天线从发送端接收信号; 估计器，用于使用所接收的信号估计与发送端相关的每个天线的信道并构成信道矩阵; 以及用于当采用格子简化方案时导出每流有效噪声的发生器，并且使用每流有效噪声产生每流CQI。 因此，可以通过使用通过格子减少获得的有效噪声生成每个流CQI来产生用于闭环（CL）MIMO系统的反馈信息。

公开(公告)号：US20120020425A1

公开(公告)日：2012-01-26

申请号：US13262485

申请日：2010-04-02

Applicant: Joo-Hyun Lee ,  Sunghwan Kim ,  Jong-Hyeuk Lee ,  Chung-Yong Lee ,  Myoung-Seok Kim ,  Hoon-Dong Noh

Inventor： Joo-Hyun Lee ,  Sunghwan Kim ,  Jong-Hyeuk Lee ,  Chung-Yong Lee ,  Myoung-Seok Kim ,  Hoon-Dong Noh

IPC: H04B7/02

CPC classification number: H04B7/0639 ,  H04B7/024 ,  H04L25/0228 ,  H04L25/0246

Abstract: The present invention relates to performance improvement in a cell edge, particularly, to a method for selecting a precoder for a terminal in a multiple antenna system, wherein the method comprises: performing channel estimation for reference signals of a serving base station and another base station; determining a minimum singular value by using the channel estimation result; and if a complete collaborative feedback structure is used, feeding back a table of the determined, minimum singular value to the base stations.

Abstract translation: 本发明涉及小区边缘的性能改进，特别涉及用于选择多天线系统中的终端的预编码器的方法，其中该方法包括：对服务基站和另一基站的参考信号执行信道估计 ; 通过使用信道估计结果确定最小奇异值; 并且如果使用完整的协作反馈结构，则将确定的最小奇异值的表反馈给基站。

公开(公告)号：US20120009867A1

公开(公告)日：2012-01-12

申请号：US13242670

申请日：2011-09-23

Applicant: Suk-Seung HWANG ,  Joo-Hyun LEE ,  Sang-Boh YUN ,  Young-Hoon KWON

Inventor： Suk-Seung HWANG ,  Joo-Hyun LEE ,  Sang-Boh YUN ,  Young-Hoon KWON

IPC: H04B7/14

CPC classification number: G01S5/0205 ,  G01S5/0018 ,  G01S5/0273 ,  G01S5/10 ,  H04B7/155 ,  H04B7/2606 ,  H04L27/2647 ,  H04W56/00 ,  H04W64/00

Abstract: An apparatus and method for location estimation in a wireless communication system are provided. The method includes identifying if a received at least one signal passed through at least one repeater, when the received at least one signal is identified as having passed though at least one repeater, measuring a Base Station (BS) basis delay time and calculating a repeater basis delay time using the measured BS basis delay time, and estimating a location of the MS using the repeater basis delay time.

Abstract translation: 提供了一种用于无线通信系统中的位置估计的装置和方法。 该方法包括：当所接收的至少一个信号被识别为已经通过至少一个中继器时，识别接收到的至少一个信号是否经过至少一个中继器，测量基站（BS）延迟时间并计算中继器 使用所测量的BS基本延迟时间的基准延迟时间，以及使用中继器基础延迟时间估计MS的位置。

公开(公告)号：US08036294B2

公开(公告)日：2011-10-11

申请号：US11651934

申请日：2007-01-10

Applicant: June Moon ,  Soon-Young Yoon ,  Ki-Young Han ,  Keun-Chul Hwang ,  Joo-Hyun Lee ,  Sung-Soo Hwang

Inventor： June Moon ,  Soon-Young Yoon ,  Ki-Young Han ,  Keun-Chul Hwang ,  Joo-Hyun Lee ,  Sung-Soo Hwang

IPC: H04L5/12 ,  H04L23/02

CPC classification number: H04L27/22 ,  H04L25/061 ,  H04L27/2647

Abstract: A symbol demapping method and apparatus for efficient interference cancellation in a wireless communication system. Decision signal points are generated which include decision signal points based on a modulation scheme and a virtual signal point added to a zero point. A magnitude of a complex value of an input signal is compared with a threshold based on system setting. When the magnitude of the complex value is less than the threshold, the virtual signal point of the zero point is mapped and output as a target decision signal point. When the magnitude of the complex value is greater than or equal to the threshold, one of the decision signal points based on the modulation scheme is mapped and output according to the com0plex value.

Abstract translation: 一种用于无线通信系统中有效干扰消除的符号解映射方法和装置。 产生决定信号点，其包括基于调制方案的判定信号点和添加到零点的虚拟信号点。 基于系统设置将输入信号的复数值的大小与阈值进行比较。 当复数值的大小小于阈值时，零点的虚拟信号点被映射并作为目标判定信号点输出。 当复数值的大小大于或等于阈值时，根据调制方案的一个判决信号点被映射并根据com复合值输出。

公开(公告)号：US08000422B2

公开(公告)日：2011-08-16

申请号：US12157679

申请日：2008-06-12

Applicant: Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Soong-Yoon Choi ,  Yong-Soo Cho ,  Tae-Ho Im ,  Jae-Kwon Kim

Inventor： Joo-Hyun Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Soong-Yoon Choi ,  Yong-Soo Cho ,  Tae-Ho Im ,  Jae-Kwon Kim

IPC: H04B1/10

CPC classification number: H04L25/067 ,  H04L27/38

Abstract: Receiving apparatus and method in a Multiple-Input Multiple-Output (MIMO) wireless communication system are provided. The receiver having N-ary receive antennas includes a decomposer for decomposing a channel matrix to a matrix Q and a matrix R through a QR decomposition; a detector for determining a candidate group of an n-th phase by estimating a plurality of transmit signal vectors by substituting a plurality of transmittable symbols into symbol combinations of a candidate group of a (n−1)-th phase as an n-th symbol and detecting (n+1)-th through N-th symbols using characteristics of the matrix R; a calculator for calculating square Euclidean distance values between the transmit signal vectors and a receive signal vector; and a determiner for determining the candidate group of the n-th phase by selecting transmit signal vectors having the smallest square Euclidean distance value among the transmit signal vectors.

Abstract translation: 提供了一种多输入多输出（MIMO）无线通信系统中的接收装置和方法。 具有N元接收天线的接收机包括用于通过QR分解将信道矩阵分解为矩阵Q和矩阵R的分解器; 检测器，用于通过将第（n-1）个相位的候选组的符号组合替换为第n个第（n-1）个相位的符号组合来估计多个发送信号向量来确定第n相的候选组， 符号和检测（n + 1）到第N个符号，使用矩阵R的特性; 用于计算发射信号矢量与接收信号矢量之间的欧氏距离值的计算器; 以及确定器，用于通过选择发送信号向量中具有最小的欧氏距离值的发送信号矢量来确定第n相的候选组。