公开(公告)号：US08201030B2

公开(公告)日：2012-06-12

申请号：US12290391

申请日：2008-10-30

Applicant: Seul-Ki Bae ,  Seung-Hee Han ,  Jong-Hyeuk Lee ,  Hong-Yeop Song ,  Dae-Son Kim ,  Joon-Sung Kim

Inventor： Seul-Ki Bae ,  Seung-Hee Han ,  Jong-Hyeuk Lee ,  Hong-Yeop Song ,  Dae-Son Kim ,  Joon-Sung Kim

IPC: G06F11/00

CPC classification number: H03M13/2775 ,  H03M13/2957 ,  H04L1/0071

Abstract: A method and apparatus for parallel structured Latin square interleaving in a communication system are provided. The method includes dividing input information bits into sub-blocks according to a parallel processing order, generating a first Latin square matrix or a second Latin square matrix by comparing the parallel processing order with a predetermined threshold, and interleaving by reading out the information bits divided into the sub-blocks according to the generated Latin square matrix.

Abstract translation: 提供了一种用于通信系统中的并行结构化拉丁方块交织的方法和装置。 该方法包括根据并行处理顺序将输入信息比特划分为子块，通过将并行处理顺序与预定阈值进行比较来产生第一拉丁方阵或第二拉丁方阵，以及通过读出分割的信息比特来进行交织 根据生成的拉丁方阵，进入子块。

公开(公告)号：US08189696B2

公开(公告)日：2012-05-29

申请号：US12080650

申请日：2008-04-03

Applicant: Jong-Hyeuk Lee ,  Sang-Boh Yun ,  Joo-Hyun Lee ,  Dae-Sik Hong ,  Hyung-Joon Song

Inventor： Jong-Hyeuk Lee ,  Sang-Boh Yun ,  Joo-Hyun Lee ,  Dae-Sik Hong ,  Hyung-Joon Song

IPC: H04L27/28

CPC classification number: H04L5/0007 ,  H04B7/155 ,  H04L25/03057 ,  H04L25/03178 ,  H04L2001/0097

Abstract: An apparatus and method for data transmission in an Orthogonal Frequency Division Multiplexing (OFDM) communication system are provided. An OFDM system includes a reference Relay Station (RS) and a cooperative relay station respectively for performing an Spatially Layered transmission Mode (SLM) process by modulating a phase and magnitude of a signal by using a predetermined modulation order suitable for the reference relay station to obtain a spatially-layered signal and for delivering the spatially-layered signal to a target Mobile Station (MS); a Base Station (BS) for selecting the reference relay station and the cooperative relay station among a plurality of relay stations; and an mobile station for detecting data through Maximum Likelihood (ML) detection in which a signal having the largest ML is detected by comparing the received spatially-layered signal with a signal which is converted through the SLM upon receiving the spatially-layered signal from the reference relay station and the cooperative relay station.

Abstract translation: 提供了一种用于正交频分复用（OFDM）通信系统中的数据传输的装置和方法。 OFDM系统包括参考中继站（RS）和协作中继站，分别用于通过使用适合于参考中继站的预定调制顺序来调制信号的相位和幅度来执行空间分层传输模式（SLM）处理 获得空间分层信号并将空间分层信号传送到目标移动站（MS）; 用于在多个中继站中选择参考中继站和协作中继站的基站（BS）; 以及用于通过最大似然（ML）检测来检测数据的移动站，其中通过将接收到的空间分层信号与从所述SLM接收到的空间分层信号中经过SLM转换的信号进行比较来检测具有最大ML的信号 参考中继站和合作中继站。

公开(公告)号：US07974349B2

公开(公告)日：2011-07-05

申请号：US11650470

申请日：2007-01-08

Applicant: Seung-Hoon Nam ,  Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Joo-Hwan Chun ,  Eun-Yong Kim

Inventor： Seung-Hoon Nam ,  Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Joo-Hwan Chun ,  Eun-Yong Kim

IPC: H04L27/00

CPC classification number: H04L25/0248 ,  H04B7/0452 ,  H04J11/0033

Abstract: An optimum perturbation apparatus and method in a multi-antenna, multi-user communication system are provided. In the optimum perturbation method, upon receipt of modulation symbols, channel responses are decomposed into eigenvalues and eigenvectors by Single Value Decompositin (SVD) and a distortion value of the modulation symbols is estimated using the eigenvectors and the eigenvalues to minimize noise and interference power. The modulation symbols are precoded by combining the modulation symbols with the estimated distortion value.

Abstract translation: 提供了一种多天线多用户通信系统中的最佳扰动装置和方法。 在最佳扰动方法中，在接收到调制符号后，通过单值解码（SVD）将信道响应分解为特征值和特征向量，并使用特征向量和特征值估计调制符号的失真值，以最小化噪声和干扰功率。 通过将调制符号与估计的失真值组合来对调制符号进行预编码。

公开(公告)号：US07697486B2

公开(公告)日：2010-04-13

申请号：US11209239

申请日：2005-08-23

Applicant: Hyun-Woo Lee ,  Byung-Jae Kwak ,  Sung-Jin Kim ,  Ju-Ho Lee ,  Yong-Suk Lee ,  Jong-Hyeuk Lee

Inventor： Hyun-Woo Lee ,  Byung-Jae Kwak ,  Sung-Jin Kim ,  Ju-Ho Lee ,  Yong-Suk Lee ,  Jong-Hyeuk Lee

IPC: H04B7/216

CPC classification number: H04W52/228 ,  H04B1/44 ,  H04B1/54 ,  H04B7/0604 ,  H04B7/061 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0673 ,  H04J13/00 ,  H04W52/143 ,  H04W52/42

Abstract: Disclosed a transmission apparatus in a CDMA mobile communication system. Transmission frames each have a plurality of time slots, and each of the time slots includes two data parts having the same length, a midamble intervening between the data parts, and a guard period for dividing the consecutive time slots. The transmission apparatus modulates the frames into a radio signal with a modulation signal and transmits the modulated radio signal using a plurality of antennas. A power amplifier amplifies the radio signal. A controller generates a switching control signal in a guard period of time slots of a frame associated with the radio signal amplified by the power amplifier. A switch switches the amplified radio signal from the power amplifier between a first and a second antenna in response to the switching control signal.

Abstract translation: 公开了CDMA移动通信系统中的发送装置。 发送帧各自具有多个时隙，并且每个时隙包括具有相同长度的两个数据部分，介于数据部分之间的中间码和用于划分连续时隙的保护周期。 发送装置利用调制信号将帧调制成无线信号，并使用多个天线发送调制后的无线信号。 功率放大器放大无线电信号。 控制器在与由功率放大器放大的无线电信号相关联的帧的时隙的保护时段中产生切换控制信号。 A开关响应于开关控制信号，在第一和第二天线之间切换来自功率放大器的放大的无线电信号。

公开(公告)号：US07535970B2

公开(公告)日：2009-05-19

申请号：US10924463

申请日：2004-08-23

Applicant: Chang-Soon Park ,  Kwang-Bok Lee ,  Yung-Soo Kim ,  Jong-Hyeuk Lee ,  Sung-Jin Kim

Inventor： Chang-Soon Park ,  Kwang-Bok Lee ,  Yung-Soo Kim ,  Jong-Hyeuk Lee ,  Sung-Jin Kim

IPC: H04L27/00

CPC classification number: H04B7/061 ,  H04B7/0669 ,  H04W52/42

Abstract: Disclosed is a wireless communication apparatus and method for a multiple transmit and receive antenna system using multiple codes. In suggested detection algorithm, a successive interference cancellation (SIC) scheme is employed in both an antenna domain and a code domain by successively canceling multi-code interference (MCI). An effective transmit power allocation method suitable for the detection algorithm is suggested. Transmit power allocated to each code is calculated. The transmit power is determined as a simple ratio of power of a certain signal to power of a next code signal. Based on the calculated code transmit power, transmit power for each transmit antenna is allocated. Thus, information about transmit power calculated at a receive end is feedback to a transmit end through a feedback channel.

Abstract translation: 公开了一种使用多个码的多发射和接收天线系统的无线通信装置和方法。 在建议的检测算法中，通过连续取消多码干扰（MCI），在天线域和码域中采用连续干扰消除（SIC）方案。 建议适用于检测算法的有效发射功率分配方法。 计算分配给每个代码的发射功率。 发送功率被确定为特定信号的功率与下一个码信号的功率的简单比率。 基于计算出的码发射功率，分配每个发射天线的发射功率。 因此，在接收端计算的关于发射功率的信息通过反馈信道反馈到发射端。

公开(公告)号：US07450652B2

公开(公告)日：2008-11-11

申请号：US10993105

申请日：2004-11-19

Applicant: Cheol-Jin Park ,  Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Gi-Hong Im ,  Ho-Jin Kim

Inventor： Cheol-Jin Park ,  Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Gi-Hong Im ,  Ho-Jin Kim

IPC: H04K1/10

CPC classification number: H04L27/2607 ,  H04L27/2647 ,  H04L2025/03414

Abstract: A receiving apparatus in an OFDM communication system, in which the receiving apparatus includes a serial-to-parallel converter that converts a serial signal received through an antenna to parallel signals. A pre-processor processes an nth symbol converted in the serial-to-parallel converter using an (n−1)th symbol and an (n+1)th symbol. A Fourier transformer Fourier-transforms the output of the pre-processor and an equalizer equalizes a Fourier-transformed signal. A deinterleaver deinterleaves an equalized signal, a decoder decodes a deinterleaved signal, and a parallel-to-serial converter converts parallel decoded signal to a signal stream.

Abstract translation: OFDM通信系统中的接收装置，其中接收装置包括串行到并行转换器，其将通过天线接收的串行信号转换为并行信号。 预处理器使用第（n-1）个符号和第（n + 1）个符号处理在串行到并行转换器中转换的第n个符号。 傅里叶变换器对预处理器的输出进行傅立叶变换，均衡器对傅立叶变换信号进行均衡。 解交织器对均衡信号进行解交织，解码器对解交织信号进行解码，并行到串行转换器将并行解码信号转换为信号流。

公开(公告)号：US20080247478A1

公开(公告)日：2008-10-09

申请号：US12080650

申请日：2008-04-03

Applicant: Jong-Hyeuk Lee ,  Sang-Boh Yun ,  Joo-Hyun Lee ,  Dae-Sik Hong ,  Hyung-Joon Song

Inventor： Jong-Hyeuk Lee ,  Sang-Boh Yun ,  Joo-Hyun Lee ,  Dae-Sik Hong ,  Hyung-Joon Song

IPC: H04K1/10 ,  H04B7/14

CPC classification number: H04L5/0007 ,  H04B7/155 ,  H04L25/03057 ,  H04L25/03178 ,  H04L2001/0097

Abstract: An apparatus and method for data transmission in an Orthogonal Frequency Division Multiplexing (OFDM) communication system are provided. An OFDM system includes a reference Relay Station (RS) and a cooperative relay station respectively for performing an Spatially Layered transmission Mode (SLM) process by modulating a phase and magnitude of a signal by using a predetermined modulation order suitable for the reference relay station to obtain a spatially-layered signal and for delivering the spatially-layered signal to a target Mobile Station (MS); a Base Station (BS) for selecting the reference relay station and the cooperative relay station among a plurality of relay stations; and an mobile station for detecting data through Maximum Likelihood (ML) detection in which a signal having the largest ML is detected by comparing the received spatially-layered signal with a signal which is converted through the SLM upon receiving the spatially-layered signal from the reference relay station and the cooperative relay station.

Abstract translation: 提供了一种用于正交频分复用（OFDM）通信系统中的数据传输的装置和方法。 OFDM系统包括参考中继站（RS）和协作中继站，分别用于通过使用适合于参考中继站的预定调制顺序来调制信号的相位和幅度来执行空间分层传输模式（SLM）处理 获得空间分层信号并将空间分层信号传送到目标移动站（MS）; 用于在多个中继站中选择参考中继站和协作中继站的基站（BS）; 以及用于通过最大似然（ML）检测来检测数据的移动站，其中通过将接收到的空间分层信号与从所述SLM接收到的空间分层信号中经过SLM转换的信号进行比较来检测具有最大ML的信号 参考中继站和合作中继站。

公开(公告)号：US07319685B2

公开(公告)日：2008-01-15

申请号：US10988876

申请日：2004-11-15

Applicant: Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Ho-Jin Kim ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Il-Han Kim

Inventor： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jae-Hak Chung ,  Ho-Jin Kim ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Il-Han Kim

IPC: H03J3/00

CPC classification number: H04L1/06 ,  H04L5/023 ,  H04L27/2601

Abstract: A method for assigning a single frequency sub-channel to a plurality of MSs (Mobile Stations) in an OFDM (Orthogonal Frequency Division Multiplexing) system utilizing SDM (Spatial Division Multiplexing) with multiple transmit/receive antennas. In the method, a BS (Base Station) can effectively assign a pilot channel to estimate a downlink channel. The BS divides the single frequency sub-channel into a plurality of spatial channels, and sequentially assigns the plurality of spatial channels to the MSs having the maximum communication capacity, thereby transmitting signals of the MSs through the single frequency sub-channel.

Abstract translation: 一种利用具有多个发射/接收天线的SDM（空分多路复用）的OFDM（正交频分复用）系统中的多个MS（移动站）分配单个频率子信道的方法。 在该方法中，BS（基站）可以有效地分配导频信道来估计下行链路信道。 BS将单频子信道划分为多个空间信道，并且将多个空间信道顺序地分配给具有最大通信容量的MS，从而通过单个频率子信道发送MS的信号。

公开(公告)号：US20070230327A1

公开(公告)日：2007-10-04

申请号：US11702906

申请日：2007-02-06

Applicant: Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Seung-Hoon Nam ,  Hyung-Myung Kim ,  Tae-Sung Kang ,  Woo-Geun Ahn ,  Dae-Hyun Kim

Inventor： Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Seung-Hoon Nam ,  Hyung-Myung Kim ,  Tae-Sung Kang ,  Woo-Geun Ahn ,  Dae-Hyun Kim

IPC: H04J11/00

CPC classification number: H04L5/0046 ,  H04L1/0002 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/002 ,  H04L5/0007 ,  H04L5/006

Abstract: A transmitting apparatus and method in an OFDM system are provided. In the transmitting apparatus, a channel information receiver receives channel information. A rate allocator calculates a variable data rate. A scheduler allocates channel resources according to the channel information and the variable data rate.

Abstract translation: 提供OFDM系统中的发送装置和方法。 在发送装置中，信道信息接收机接收信道信息。 速率分配器计算可变数据速率。 调度器根据信道信息和可变数据速率分配信道资源。

公开(公告)号：US20050007983A1

公开(公告)日：2005-01-13

申请号：US10840584

申请日：2004-05-06

Applicant: Jong-Hyeuk Lee ,  Yung-Soo Kim ,  Gi-Hong Im ,  Hui-Chul Won ,  Cheol-Jin Park

Inventor： Jong-Hyeuk Lee ,  Yung-Soo Kim ,  Gi-Hong Im ,  Hui-Chul Won ,  Cheol-Jin Park

IPC: H04J11/00 ,  H04B7/06 ,  H04L1/06 ,  H04L25/02 ,  H04L27/26 ,  H04Q7/00

CPC classification number: H04L27/2602 ,  H04B7/0669 ,  H04L1/0618 ,  H04L25/0204 ,  H04L25/022

Abstract: A mobile communication system, a transmitter includes a first transmission antenna and a second transmission antenna, and the first and second transmission antennas transmit signals through at least one odd carrier and at least one even carrier. The transmitter determines a first symbol and a second symbol to be used for initial channel estimation of a receiver, encodes the first symbol and the second symbol by a preset transmit diversity scheme for a preset time, and transmits the encoded first and second symbols to the receiver through odd carriers and even carriers of the first transmission antenna and the second transmission antenna. The receiver receives a signal for the preset period, estimates channel frequency responses of odd carriers of the first transmission antenna and channel frequency responses of even carriers of the second transmission antenna, and estimates channel frequency responses of even carriers of the first transmission antenna and channel frequency responses of odd carriers of the second transmission antenna by using the estimated channel frequency responses.

Abstract translation: 移动通信系统，发射机包括第一发射天线和第二发射天线，第一和第二发射天线通过至少一个奇数载波和至少一个偶数载波发射信号。 发射机确定要用于接收机的初始信道估计的第一符号和第二符号，通过预设的发射分集方案对第一符号和第二符号进行预设时间编码，并将编码的第一和第二符号发送到 接收机通过第一发射天线和第二发射天线的奇数载波和偶数载波。 接收机接收预设周期的信号，估计第一发射天线的奇数载波的信道频率响应和第二发射天线的偶数载波的信道频率响应，并估计第一发射天线和信道的偶数载波的信道频率响应 通过使用估计的信道频率响应对第二发射天线的奇数载波的频率响应。