公开(公告)号：US20110195658A1

公开(公告)日：2011-08-11

申请号：US13025742

申请日：2011-02-11

申请人： Seong Rag Kim ,  Seuck Ho Won ,  Jung-Im Kim

发明人： Seong Rag Kim ,  Seuck Ho Won ,  Jung-Im Kim

IPC分类号： H04B7/14 ,  H04B3/36

CPC分类号： H04B7/15542

摘要： A retransmission apparatus for retransmitting information received from a base station to a reception apparatus includes: a reception unit configured to receive information regarding a plurality of layers from the base station; determining unit configured to determine retransmission control information including at least one layer to be retransmitted among the plurality of layers based on feedback information received from the reception apparatus; and a transmission unit configured to retransmit the at least one layer information to the reception apparatus based on the results of the determining unit.

摘要翻译： 一种用于将从基站接收的信息重发到接收装置的重发装置，包括：接收单元，被配置为从所述基站接收关于多个层的信息; 确定单元，被配置为基于从所述接收装置接收的反馈信息来确定包括在所述多个层中的要重发的至少一个层的重传控制信息; 以及发送单元，被配置为基于所述确定单元的结果向所述接收装置重发所述至少一个层信息。

公开(公告)号：US20110058528A1

公开(公告)日：2011-03-10

申请号：US12991517

申请日：2009-05-08

申请人： Kapseok Chang ,  Young-Hoon Kim ,  Seong Rag Kim ,  Seuck Ho Won ,  Keun Young Kim

发明人： Kapseok Chang ,  Young-Hoon Kim ,  Seong Rag Kim ,  Seuck Ho Won ,  Keun Young Kim

IPC分类号： H04W72/04

CPC分类号： H04L27/2662 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2614 ,  H04L27/2657 ,  H04L27/2684

摘要： Disclosed is a symbol synchronization obtaining apparatus robust to a frequency offset in a cell search of a wireless communication system. The symbol synchronization obtaining apparatus robust to a frequency offset in a cell search of a wireless communication system may include a sequence generator to generate a base sequence for obtaining the symbol synchronization, a synchronization pattern generator to generate a modified sequence based on the base sequence, and to generate a synchronization pattern by combining the modified sequence and the base sequence, a frequency mapping unit to perform mapping of transmission information to a time area and a frequency area, based on the synchronization pattern, for generating a transmission frame, and a transmitting unit to transmit the transmission frame.

摘要翻译： 公开了一种对无线通信系统的小区搜索中的频率偏移鲁棒的符号同步获取装置。 对无线通信系统的小区搜索中的频偏进行鲁棒的符号同步获取装置可以包括生成用于获得符号同步的基本序列的序列发生器，基于该基本序列生成修改序列的同步模式发生器， 并且通过组合修改的序列和基本序列来生成同步模式，频率映射单元，用于基于所述同步模式来执行传输信息到时间区域和频率区域的映射，用于生成传输帧，以及传输 单元传输传输帧。

公开(公告)号：US07872963B2

公开(公告)日：2011-01-18

申请号：US10584641

申请日：2004-11-25

申请人： In-Kyeong Choi ,  Seong-Rag Kim ,  Dong-Seung Kwon ,  Jin-Ho Choi

发明人： In-Kyeong Choi ,  Seong-Rag Kim ,  Dong-Seung Kwon ,  Jin-Ho Choi

IPC分类号： H04J11/00

CPC分类号： H04L27/2626 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/065 ,  H04B7/066 ,  H04L1/06 ,  H04L1/0693 ,  H04L25/03343 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03426

摘要： Disclosed is a MIMO-OFDM system, wherein the transmitter comprises a serial/parallel converter for converting continuously inputted symbols of the number of subcarriers to K parallel signals; a signal reproducer for reproducing K parallel signals by the number of transmit antennas L an eigenmode generator for generating eigenbeam of the reproduced signals outputted from the signal reproducer at each subcarrier, on the basis of Nf eigenbeam forming vectors which are fed back long-term and information of a best eigenbeam forming vector at each subcarrier which is fed back short-term, through the feedback device; and a plurality of inverse Fourier converters for receiving the signals outputted from the eigenmode generator and generating an OFDM symbol.

摘要翻译： 公开了一种MIMO-OFDM系统，其中发射机包括串行/并行转换器，用于将连续输入的子载波数量的符号转换为K个并行信号; 信号再现器，用于根据发射天线L的数量再现K个并行信号，该天线本体模型发生器用于在每个子载波上从信号再现器输出的再生信号的本征波束，基于长期反馈的Nf本征波束形成向量， 通过反馈装置在短时间反馈的每个子载波处的最佳特征波束形成矢量的信息; 以及多个逆傅里叶变换器，用于接收从本征模式发生器输出的信号并产生OFDM符号。

公开(公告)号：US20100215085A1

公开(公告)日：2010-08-26

申请号：US11721110

申请日：2005-12-09

申请人： Seung-Joon Lee ,  Dong-Seung Kwon ,  Seong-Rag Kim ,  In-Kyeong Choi

发明人： Seung-Joon Lee ,  Dong-Seung Kwon ,  Seong-Rag Kim ,  In-Kyeong Choi

IPC分类号： H04B1/38 ,  H04L27/00

CPC分类号： H04L25/0208 ,  H04L1/0631 ,  H04L1/0668

摘要： A receiver according to an exemplary embodiment of the present invention receives a transmitted signal, converts the signal to a predetermined symbol, and estimates channel information including a channel gain of a channel of the transmitted signal. In addition, the receiver generates an intermediate processing value for decoding the signal based on the estimated channel information and the symbol, and normalizes the intermediate processing value to the channel gain to generate a reference value. The generated reference value is used for a soft-decision value for decoding the signal. In addition, when the signal is decoded by using a hard-decision value, a constellation point value that is closest to the reference values is generated and set as the hard-decision value.

摘要翻译： 根据本发明的示例性实施例的接收机接收发送信号，将该信号转换成预定符号，并且估计包括发送信号的信道的信道增益的信道信息。 此外，接收器基于估计的信道信息和符号生成用于对信号进行解码的中间处理值，并且将中间处理值归一化为信道增益以生成参考值。 生成的参考值用于解码信号的软判决值。 此外，当通过使用硬判决值来解码信号时，生成最接近参考值的星座点值并将其设置为硬判定值。

公开(公告)号：US07263118B2

公开(公告)日：2007-08-28

申请号：US10331783

申请日：2002-12-31

申请人： In-Kyeong Choi ,  Seong-Rag Kim ,  Jin-Kyu Choi

发明人： In-Kyeong Choi ,  Seong-Rag Kim ,  Jin-Kyu Choi

IPC分类号： H04L27/30

CPC分类号： H04B1/71075 ,  H04B1/71072 ,  H04B1/7117 ,  H04B1/712 ,  H04B17/336

摘要： An interference canceller is herein disclosed wherein a baseband signal is input to a detector's fingers, and the fingers detect multi-path signals and estimate the baseband signal's channel. An MRC uses the finger's despread signal and the channel estimate to output a soft bit decision value, while a signal regenerator uses a hard bit decision value and the finger's channel estimate to regenerate the baseband signal. An SIR measurer uses a soft bit decision value and a despreader's channel estimate to measure an SIR. A signal selector compares each detector's SIR measurement value with a target SIR, and when the SIR measurement value is greater than the target SIR, it selects the detector's regeneration signal to group received signals. A subtractor subtracts the regeneration signal from the baseband signal.

摘要翻译： 这里公开了一种干扰消除器，其中将基带信号输入到检测器的手指，并且手指检测多路径信号并估计基带信号的信道。 MRC使用手指的解扩信号和信道估计来输出软比特判定值，而信号再生器使用硬比特判定值和手指的信道估计来重新生成基带信号。 SIR测量器使用软比特判定值和解扩器的信道估计来测量SIR。 信号选择器将每个检测器的SIR测量值与目标SIR进行比较，并且当SIR测量值大于目标SIR时，它选择检测器的再生信号以对接收到的信号进行分组。 减法器从基带信号中减去再生信号。

公开(公告)号：US20070177681A1

公开(公告)日：2007-08-02

申请号：US10584641

申请日：2004-11-25

申请人： In-Kyeong Choi ,  Seong-Rag Kim ,  Dong-Seung Kwon ,  Jin-Ho Choi

发明人： In-Kyeong Choi ,  Seong-Rag Kim ,  Dong-Seung Kwon ,  Jin-Ho Choi

IPC分类号： H04L27/00 ,  H04K1/10 ,  H04L27/28

CPC分类号： H04L27/2626 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/065 ,  H04B7/066 ,  H04L1/06 ,  H04L1/0693 ,  H04L25/03343 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03426

摘要： Disclosed is a MIMO-OFDM system, wherein the transmitter comprises a serial/parallel converter for converting continuously inputted symbols of the number of subcarriers to K parallel signals; a signal reproducer for reproducing K parallel signals by the number of transmit antennas L an eigenmode generator for generating eigenbeam of the reproduced signals outputted from the signal reproducer at each subcarrier, on the basis of Nf eigenbeam forming vectors which are fed back long-term and information of a best eigenbeam forming vector at each subcarrier which is fed back short-term, through the feedback device; and a plurality of inverse Fourier converters for receiving the signals outputted from the eigenmode generator and generating an OFDM symbol.

摘要翻译： 公开了一种MIMO-OFDM系统，其中发射机包括串行/并行转换器，用于将连续输入的子载波数量的符号转换为K个并行信号; 信号再现器，用于根据发射天线L的数量再现K个并行信号，该天线本体模型发生器用于在每个子载波上从信号再现器输出的再生信号的本征波束，基于长期反馈的Nf本征波束形成向量， 通过反馈装置在短时间反馈的每个子载波处的最佳特征波束形成矢量的信息; 以及多个逆傅里叶变换器，用于接收从本征模式发生器输出的信号并产生OFDM符号。

公开(公告)号：US07039094B2

公开(公告)日：2006-05-02

申请号：US10025797

申请日：2001-12-26

申请人： Seong Rag Kim ,  Jinho Choi ,  Young-Ho Jung ,  Seung Chul Hong ,  Yong Hoon Lee

发明人： Seong Rag Kim ,  Jinho Choi ,  Young-Ho Jung ,  Seung Chul Hong ,  Yong Hoon Lee

IPC分类号： H04B1/69

CPC分类号： H04B1/71055 ,  H04B1/7117 ,  H04B1/712

摘要： An adaptive RAKE receiving apparatus is constrained with at least one constraint for use in a mobile communication system. The apparatus includes an input signal generator for generating a complex received signal by gathering multi-path components during a corresponding transmitting signature; adaptive filters for filtering the complex received signal based on a tab weight that is adjusted at a predetermined period; channel estimators for estimating a phase component and an amplitude component of a particular user channel by using the filtered signals to generate channel estimating result signals; a signal recovering unit for recovering an original signal, which was transmitted from a particular user, by combining the filtered signals for all multi-path components and the channel estimating result signals; selecting unit for selecting one between a predetermined trained data signal and the recovered signal from the signal recovering unit; a reference signal generator for generating a reference signal by using the selected signal and the channel estimation result signal; an error calculator for comparing the filtered received signal with the reference signal to calculate error between these compared two signals; and a tap coefficient adjuster for adjusting tap coefficients of the adaptive filtering unit based on MMSE (Minimum Mean Square Error) criterion with at least one constraint.

公开(公告)号：US06473415B1

公开(公告)日：2002-10-29

申请号：US09145240

申请日：1998-09-01

申请人： Seong Rag Kim ,  Jeong Goo Lee ,  Nam Jin Park ,  Hun Lee

发明人： Seong Rag Kim ,  Jeong Goo Lee ,  Nam Jin Park ,  Hun Lee

IPC分类号： H04B1500

CPC分类号： H04B1/71072 ,  H04B2001/71077

摘要： The present invention provides an interference canceling method and the apparatus of a multi-mode subtraction type in asynchronous multipath channels of CDMA system, which cancel the interference based on the received signal power of each user (or path), which make the selected fingers keep participating in the subsequent cancellation processing with new (more cleaned) input signal, which do a scale factor's processing and a clipper's processing to make the tentative bit decision, which can select the proper interference canceling method among various interference canceling method according to the total number of users in service, the hardware speed to implement the present method and the power spread of received signals, which repeat the selected interference canceling process recursively with a stage of hardware, which can reduce the number of stage compared with parallel interference cancellation method of the prior art in case that the interference canceling apparatus is made up multi-stages, which do overlappingly a canceling process of the last bit of the multiple bits for efficient operation in the asynchronous channel, which reduce the interference according to the power sequence of each multipath signal instead of the power sequence of each user signal made up multipath signals for efficient operation in multipath channels with unequal powers, which can increase the performance and capacity of the CDMA system by reducing the interference produced by a multiple access process in CDMA system with the asynchronous multipath channels.

摘要翻译： 本发明提供一种CDMA系统的异步多径信道中的多模式减法类型的干扰消除方法和装置，其基于每个用户（或路径）的接收信号功率消除干扰，这使得所选择的指针保持 参与随后的取消处理，其中新的（更清洁的）输入信号进行缩放因子的处理，并且裁剪器的处理以作出暂定的比特决定，其可以根据总数在各种干扰消除方法中选择适当的干扰消除方法 的用户在使用中，硬件速度来实现本方法和接收信号的功率扩展，其以硬件级递归地重复所选择的干扰消除过程，这可以减少与并行干扰消除方法相比的级数 在干涉消除装置组成的情况下的现有技术 lti级，其重叠地执行多个比特的最后一比特的取消处理，以在异步信道中有效地操作，其根据每个多径信号的功率序列而不是组成的每个用户信号的功率序列来减少干扰 多径信号，用于在具有不等功率的多路径信道中进行有效操作，这可以通过减少由CDMA异步多径信道中的CDMA接入过程产生的干扰来提高CDMA系统的性能和容量。

公开(公告)号：US6067333A

公开(公告)日：2000-05-23

申请号：US977826

申请日：1997-11-25

申请人： Seong Rag Kim ,  Jeong Goo Lee ,  Nam Jin Park ,  Hun Lee

发明人： Seong Rag Kim ,  Jeong Goo Lee ,  Nam Jin Park ,  Hun Lee

IPC分类号： H03H21/00 ,  H04B1/10 ,  H04B1/7097 ,  H04B7/005 ,  H04J13/00 ,  H03D1/04 ,  H03K5/01 ,  H03K6/04 ,  H04L25/08

CPC分类号： H04B1/71072 ,  H04B1/71075

摘要： The present invention relates to a CDMA system, which, in part, uses serial and parallel interference cancellation methods to overcome disadvantages of a method of detecting single user, and comprises a feedback loops for providing reproduced signals to respective inputs of detectors, and a means for controlling an operation for the detectors to attribute to interference cancellation process. The detectors to contribute to interference cancellation process can be also selected group by group. It is used to switch off only detectors contributing to interference cancellation process in progress and detectors contributing to previous interference cancellation, providing a adaptive serial and parallel mixed interference cancellation method for increasing performance and capacity of the CDMA system.

摘要翻译： 本发明涉及一种CDMA系统，其部分地使用串并行干扰消除方法来克服检测单用户的方法的缺点，并且包括用于向检测器的各个输入提供再现信号的反馈回路，以及一种装置 用于控制检测器的操作属于干扰消除处理。 有助于干扰消除过程的检测器也可以逐组选择。 它用于仅关闭有助于干扰消除过程的检测器和有助于先前干扰消除的检测器，提供用于提高CDMA系统的性能和容量的自适应串并联混合干扰消除方法。

公开(公告)号：US08774122B2

公开(公告)日：2014-07-08

申请号：US12991517

申请日：2009-05-08

申请人： Kapseok Chang ,  Young-Hoon Kim ,  Seong Rag Kim ,  Seuck Ho Won ,  Keun Young Kim

发明人： Kapseok Chang ,  Young-Hoon Kim ,  Seong Rag Kim ,  Seuck Ho Won ,  Keun Young Kim

IPC分类号： H04W4/00 ,  H04L27/26

CPC分类号： H04L27/2662 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2614 ,  H04L27/2657 ,  H04L27/2684

摘要： Disclosed is a symbol synchronization obtaining apparatus robust to a frequency offset in a cell search of a wireless communication system. The symbol synchronization obtaining apparatus robust to a frequency offset in a cell search of a wireless communication system may include a sequence generator to generate a base sequence for obtaining the symbol synchronization, a synchronization pattern generator to generate a modified sequence based on the base sequence, and to generate a synchronization pattern by combining the modified sequence and the base sequence, a frequency mapping unit to perform mapping of transmission information to a time area and a frequency area, based on the synchronization pattern, for generating a transmission frame, and a transmitting unit to transmit the transmission frame.

摘要翻译： 公开了一种对无线通信系统的小区搜索中的频率偏移鲁棒的符号同步获取装置。 对无线通信系统的小区搜索中的频偏进行鲁棒的符号同步获取装置可以包括生成用于获得符号同步的基本序列的序列发生器，基于该基本序列生成修改序列的同步模式发生器， 并且通过组合修改的序列和基本序列来生成同步模式，频率映射单元，用于基于所述同步模式来执行传输信息到时间区域和频率区域的映射，用于生成传输帧，以及传输 单元传输传输帧。