公开(公告)号：US20060182189A1

公开(公告)日：2006-08-17

申请号：US11148179

申请日：2005-06-09

申请人： Hyun-Seok Yu ,  Hyun-Seok Oh ,  Ji-Won Ha ,  Min-Goo Kim

发明人： Hyun-Seok Yu ,  Hyun-Seok Oh ,  Ji-Won Ha ,  Min-Goo Kim

IPC分类号： H04K1/10

CPC分类号： H04L27/2649 ,  H04L25/061 ,  H04L2027/0016

摘要： An optimum I/Q imbalance compensating apparatus and method in a zero-IF OFDM receiver. In the apparatus, a first compensator generates a first symbol by removing interference from a second distorted symbol on an (Ns−m+1)th subcarrier from a first distorted symbol on an mth subcarrier by a first compensation coefficient in an OFDM FFT signal of Ns subcarriers. A first hard decider generates a first compensated symbol by hard-decision on the first symbol, an error calculator generates an error symbol by subtracting the first received symbol from the first compensated symbol. A second compensator generates a second symbol by eliminating interference from the first distorted symbol from the second distorted symbol using a second compensation coefficient. A second hard decider generates a second compensated symbol by hard-decision on the second symbol, and an adaptive controller updates the first compensation coefficient using the error symbol and the second compensation symbol.

摘要翻译： 零中频OFDM接收机中的最佳I / Q不平衡补偿装置和方法。 在该装置中，第一补偿器通过从第一失真符号（N SUB S-m + 1）第（S）个子载波上去除来自第二失真符号的干扰来产生第一符号 在第N个子载波上的OFDM FFT信号中的第一补偿系数。 第一硬判决器通过对第一符号进行硬判决来生成第一补偿符号，误差计算器通过从第一补偿符号减去第一接收符号来生成误差符号。 第二补偿器通过使用第二补偿系数消除来自第二失真符号的来自第一失真符号的干扰来产生第二符号。 第二硬判定器通过第二符号上的硬判决产生第二补偿符号，并且自适应控制器使用误差符号和第二补偿符号来更新第一补偿系数。

公开(公告)号：US20060120271A1

公开(公告)日：2006-06-08

申请号：US11293638

申请日：2005-12-02

申请人： Hyun-Seok Yu ,  Hyun-Seok Oh ,  Ji-Won Ha ,  Min-Goo Kim

发明人： Hyun-Seok Yu ,  Hyun-Seok Oh ,  Ji-Won Ha ,  Min-Goo Kim

IPC分类号： H04J11/00

CPC分类号： H04L27/2662 ,  H04B7/022 ,  H04B7/0671 ,  H04L25/247 ,  H04L27/2607

摘要： A gap filler apparatus providing cyclic delay diversity in a digital multimedia broadcasting (DMB) system. In the gap filler apparatus, a receiver receives an orthogonal frequency division multiplexing (OFDM) signal transmitted as a broadcasting signal. A symbol synchronization unit acquires symbol synchronization of the OFDM signal, detects a guard interval of an OFDM symbol using the symbol synchronization, determines a sample length, by which the OFDM symbol is cyclic-delayed within the guard interval, and cyclic-delays the OFDM signal by the determined sample length. An amplifier amplifies the cyclic-delayed OFDM signal. A transmitter transmits the amplified OFDM signal to a wireless network.

摘要翻译： 一种在数字多媒体广播（DMB）系统中提供循环延迟分集的间隙填充装置。 在间隙填充装置中，接收机接收作为广播信号发送的正交频分复用（OFDM）信号。 符号同步单元获取OFDM信号的符号同步，使用符号同步检测OFDM符号的保护间隔，确定OFDM符号在保护间隔内被循环延迟的采样长度，并循环延迟OFDM 通过确定的样本长度信号。 放大器放大循环延迟的OFDM信号。 发射机将放大的OFDM信号发射到无线网络。

公开(公告)号：US20060105709A1

公开(公告)日：2006-05-18

申请号：US11254860

申请日：2005-10-21

申请人： Hyun-Seok Oh ,  Sung-Soo Kim ,  Min-Goo Kim

发明人： Hyun-Seok Oh ,  Sung-Soo Kim ,  Min-Goo Kim

IPC分类号： H04B7/185

CPC分类号： H04B7/0417 ,  H04B7/0634 ,  H04B7/0669 ,  H04B7/0689 ,  H04B7/0697 ,  H04W40/246 ,  H04W88/04

摘要： An apparatus and method are provided for transmitting and receiving high-speed packet data without path loss in a mobile communication system with a plurality of transmitting and receiving antennas. To support high-speed data for a mobile station (MS), a base station (BS) identifies a correlation between the number of transmitting antennas and the number of receiving antennas using feedback information and determines whether to establish a relay transmission scheme. The BS determines if quality of service for the MS is satisfied when the number of transmitting antennas is grater than the number of receiving antennas according to the established relay transmission scheme. When the quality of service for the MS is not satisfied, the BS transmits the high-speed data through a specific node group adjacent to the MS.

摘要翻译： 提供了一种用于在具有多个发送和接收天线的移动通信系统中发送和接收没有路径损耗的高速分组数据的装置和方法。 为了支持移动台（MS）的高速数据，基站（BS）使用反馈信息识别发射天线的数量和接收天线的数量之间的相关性，并且确定是否建立中继传输方案。 根据建立的中继传输方案，当发射天线的数量比接收天线的数量更多时，BS确定是否满足MS的业务质量。 当MS的服务质量不满足时，BS通过与MS相邻的特定节点组发送高速数据。

公开(公告)号：US20050232341A1

公开(公告)日：2005-10-20

申请号：US11001704

申请日：2004-12-02

申请人： Hyun-Seok Oh ,  Hyun-Seok Yu ,  Hye-Jeong Lee ,  Gin-Kyu Choi ,  Yong-Suk Moon ,  Jung Joo ,  Su-Jin Yoon

发明人： Hyun-Seok Oh ,  Hyun-Seok Yu ,  Hye-Jeong Lee ,  Gin-Kyu Choi ,  Yong-Suk Moon ,  Jung Joo ,  Su-Jin Yoon

IPC分类号： H04B7/02 ,  H04B7/06 ,  H04B7/08 ,  H04B1/707

CPC分类号： H04B1/71055 ,  H04B7/0697 ,  H04B7/0845

摘要： An apparatus and a method for improving the performance of an error correction code in response to the influence of error propagation are disclosed. A receiver of a mobile communication system, which transmits/receives data at a high speed by means of the plurality of transmission antennas and the plurality of reception antennas, estimates a transmission signal of a specific path from a first received signal according to a preset criterion, measures an error component for each symbol of the estimated transmission signal, performs an error correction for symbols having a corresponding error component exceeding a preset value, detects transmission data from all symbols through a predetermined signal reverse-processing procedure, reconstructs a transmission signal from the transmission data, subtracts the reconstructed transmission signal from the received signal to generate a second received signal, and repeats the above operations until transmission data of all paths are detected from the second received signal.

摘要翻译： 公开了一种用于改善响应于误差传播的影响的纠错码的性能的装置和方法。 根据多个发送天线和多个接收天线以高速发送/接收数据的移动通信系统的接收机根据预设标准从第一接收信号估计特定路径的发送信号 测量估计的传输信号的每个符号的误差分量，对具有超过预置值的对应误差分量的符号执行纠错，通过预定信号反向处理过程检测来自所有符号的传输数据，从 传输数据从接收到的信号中减去重构的传输信号以产生第二接收信号，并重复上述操作，直到从第二接收信号检测出所有路径的传输数据。

公开(公告)号：US20050201474A1

公开(公告)日：2005-09-15

申请号：US11065802

申请日：2005-02-25

申请人： Yun-Ok Cho ,  Ju-Ho Lee ,  Han-Il Yu ,  Hyun-Seok Oh ,  Joon-Young Cho

发明人： Yun-Ok Cho ,  Ju-Ho Lee ,  Han-Il Yu ,  Hyun-Seok Oh ,  Joon-Young Cho

IPC分类号： H04J11/00 ,  H04L1/00 ,  H04L1/08 ,  H04L1/16 ,  H04L1/18 ,  H04L27/26 ,  H04K1/10

CPC分类号： H04L1/0027 ,  H04L1/0003 ,  H04L1/0006 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/08 ,  H04L1/1671 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0039 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/006 ,  H04L5/0085 ,  H04L5/0096 ,  H04L2001/0093

摘要： A method and apparatus for efficiently transmitting channel quality information in an OFDM communication system using dynamic channel allocation and adaptive modulation, and determining parameters required for time-division channel quality information transmission in an asynchronous CDMA communication system are provided. In the OFDM communication system in which a plurality of subcarriers are allocated to a plurality of UEs, the subcarriers are divided into a plurality of subcarrier groups each having at least one subcarrier. Each of the UEs determines and transmits the channel quality information of each of the subcarrier groups according to predetermined transmission parameters at transmission time points that do not overlap with those of other UEs. A Node B dynamically allocates the subcarriers to the UEs and their corresponding modulation schemes according to the channel quality information.

摘要翻译： 提供一种在使用动态信道分配和自适应调制的OFDM通信系统中有效地发送信道质量信息的方法和装置，以及确定异步CDMA通信系统中的时分信道质量信息传输所需的参数。 在多个子载波被分配给多个UE的OFDM通信系统中，子载波被划分成多个子载波组，每个子载波组具有至少一个副载波。 每个UE根据与其他UE的那些不重叠的传输时间点根据预定的传输参数来确定和发送每个子载波组的信道质量信息。 节点B根据信道质量信息动态地将子载波分配给UE及其对应的调制方案。

公开(公告)号：US20050078741A1

公开(公告)日：2005-04-14

申请号：US10913503

申请日：2004-08-09

申请人： Hun-Geun Song ,  Yong-Suk Moon ,  Hyun-Seok Oh

发明人： Hun-Geun Song ,  Yong-Suk Moon ,  Hyun-Seok Oh

IPC分类号： H04B1/707

CPC分类号： H04B1/71 ,  H04B1/7103 ,  H04B1/7115

摘要： An apparatus and method for detecting the reception timing of a received signal in a mobile communication system are provided. Two time points having the same energy, earlier and later than the received signal, are detected. The energy ratio between other time points spaced from the two time points by the same interval is calculated and it is determined whether the energy ratio falls into a predetermined rage. If the energy ratio is within the range, the received signal is considered to have no effects from an interference signal or a neighboring signal.

摘要翻译： 提供了一种用于在移动通信系统中检测接收信号的接收定时的装置和方法。 检测到具有比接收信号早和晚的相同能量的两个时间点。 计算与两个时间点间隔相同间隔的其他时间点之间的能量比，并且确定能量比是否落入预定的范围。 如果能量比在该范围内，则接收信号被认为不具有来自干扰信号或相邻信号的影响。

公开(公告)号：US08681744B2

公开(公告)日：2014-03-25

申请号：US12729467

申请日：2010-03-23

申请人： John W Haim ,  Hyun-Seok Oh ,  Younglok Kim ,  Ariela Zeira ,  Robert A. DiFazio

发明人： John W Haim ,  Hyun-Seok Oh ,  Younglok Kim ,  Ariela Zeira ,  Robert A. DiFazio

IPC分类号： H04B7/216

CPC分类号： H04B1/70735 ,  H04B1/7105

摘要： The present invention is a receiver which includes a blind code detection device for determining the identity of a plurality of channels over which information is to be transmitted when the identity of all channels is not known by the receiver. The blind code detection device generates a candidate channel list filled with the identify of selected channels out of the plurality of channels. A multi-user detection device, responsive to the blind code detection device, processes those channels in the candidate code list.

摘要翻译： 本发明是一种接收机，其包括盲码检测装置，用于当接收机不知道所有信道的身份时，确定要发送信息的多个信道的身份。 盲代码检测装置生成填充有多个信道中所选择的信道的标识的候选信道列表。 响应于盲代码检测设备的多用户检测设备处理候选代码列表中的那些信道。

公开(公告)号：US08509441B2

公开(公告)日：2013-08-13

申请号：US12813078

申请日：2010-06-10

申请人： Bong No Yoon ,  Hyun Seok Oh

发明人： Bong No Yoon ,  Hyun Seok Oh

IPC分类号： H04L9/22

CPC分类号： H04L9/3271 ,  H04L9/0662 ,  H04L2209/08 ,  H04L2209/20 ,  H04L2209/805

摘要： A Radio Frequency Identification (RFID) system and method are provided that includes a reader and a tag which share a predetermined secret key. The reader transmits an authentication request random number to the tag. The reader and the tag generate a Pseudorandom Noise (PN) sequence formed of a series of binary codes from an exclusive disjunction of the authentication request random number and the predetermined secret key. The tag produces an authentication response random number by performing a predetermined conversion operation for the PN sequence and transmits the authentication response random number to the reader. The reader authenticates the tag by analyzing the PN sequence and the authentication response random number.

摘要翻译： 提供了一种射频识别（RFID）系统和方法，其包括共享预定秘密密钥的读取器和标签。 读取器向标签发送认证请求随机数。 读取器和标签从认证请求随机数和预定秘密密钥的独占分离产生由一系列二进制码形成的伪随机噪声（PN）序列。 标签通过对PN序列执行预定的转换操作来产生认证响应随机数，并将认证响应随机数发送给读取器。 读者通过分析PN序列和认证响应随机数来认证标签。

公开(公告)号：US20090201887A1

公开(公告)日：2009-08-13

申请号：US12426502

申请日：2009-04-20

申请人： John W. Haim ,  Hyun-Seok Oh ,  Younglok Kim ,  Ariela Ziera ,  Robert A. DiFazio

发明人： John W. Haim ,  Hyun-Seok Oh ,  Younglok Kim ,  Ariela Ziera ,  Robert A. DiFazio

IPC分类号： H04B7/216 ,  H04J13/00 ,  H04W4/00 ,  H04B1/69

CPC分类号： H04B1/70735 ,  H04B1/7105

摘要： The present invention is a receiver which includes a blind code detection device for determining the identity of a plurality of channels over which information is to be transmitted when the identity of all channels is not known by the receiver. The blind code detection device generates a candidate channel list filled with the identify of selected channels out of the plurality of channels. A multi-user detection device, responsive to the blind code detection device, processes those channels in the candidate code list.

摘要翻译： 本发明是一种接收机，其包括盲码检测装置，用于当接收机不知道所有信道的身份时，确定要发送信息的多个信道的身份。 盲代码检测装置生成填充有多个信道中所选择的信道的标识的候选信道列表。 响应于盲代码检测设备的多用户检测设备处理候选代码列表中的那些信道。

公开(公告)号：US20090193323A1

公开(公告)日：2009-07-30

申请号：US12363253

申请日：2009-01-30

申请人： Sung-Jin PARK ,  Hyun-Seok OH

发明人： Sung-Jin PARK ,  Hyun-Seok OH

IPC分类号： H03M13/09 ,  G06F11/10

CPC分类号： H04L1/0054 ,  H03M13/09 ,  H03M13/4169 ,  H04L1/0061

摘要： Provided are an apparatus and a method for improving the performance of a decoder by improving a decoding speed when correcting an error of a control signal in Long Term Evolution (LTE). The apparatus includes an error determination unit for performing a traceback operation on a received signal, and simultaneously determining if an error has been generated to the received signal.

摘要翻译： 提供了一种通过在长期演进（LTE）中校正控制信号的错误时提高解码速度来提高解码器的性能的装置和方法。 该装置包括：误差确定单元，用于对接收到的信号执行回溯操作，并且同时确定是否已经对所接收的信号产生了错误。