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11. 发明申请

US20080313252A1 Sphere Decoder and Decoding Method Thereof 有权
标题翻译：球体解码器及其解码方法
公开(公告)号：US20080313252A1
公开(公告)日：2008-12-18
申请号：US11722131
申请日：2005-12-21
申请人： Seong-Rag Kim , Seung-Joon Lee , Dong-Seung Kwon , Seong-Keun Oh , Hee-Goo Han
发明人： Seong-Rag Kim , Seung-Joon Lee , Dong-Seung Kwon , Seong-Keun Oh , Hee-Goo Han
IPC分类号： G06F17/16 , G06F17/30
CPC分类号： H04L25/03242 , H04L1/0045 , H04L1/06
摘要： A sphere decoder sets a Euclidean distance between a lattice vector obtained by using an MMSE or ZF estimate and a received signal as an initial radius, further reduces the initial radius, and searches lattices points included inside a hypersphere with the further reduced initial radius. In addition, one lattice vector having a minimum Euclidean distance is output. One dimension is selected to reduce an initial radius, and estimates in other dimensions are kept fixed, excluding the selected dimension. Then candidate lattice points are searched in the selected dimension, excluding a current estimate, such that a minimum Euclidean distance and a lattice point estimate corresponding to the minimum Euclidean distance are obtained. The initial radius is updated by the minimum Euclidean distance, and a final lattice vector is constructed by combining a lattice point estimate corresponding to the initial radius and the lattice point estimates in other dimensions.
摘要翻译：球体解码器设置通过使用MMSE或ZF估计获得的格子向量与作为初始半径的接收信号之间的欧氏距离，进一步减小初始半径，并且搜索包含在超球体内的具有进一步减小的初始半径的晶格点。此外，输出具有最小欧几里德距离的一个格子矢量。选择一个维度以减少初始半径，并且将其他维度的估计值保持固定，不包括所选维度。然后，在所选择的维度中搜索候选格点，排除当前估计，使得获得对应于最小欧几里德距离的最小欧几里德距离和格点估计。初始半径通过最小欧几里得距离来更新，并且通过组合对应于初始半径的网格点估计和其他维度中的格点估计来构造最终的格子矢量。

12. 发明授权

US08117522B2 Sphere decoder and decoding method thereof 有权
标题翻译：球体解码器及其解码方法
公开(公告)号：US08117522B2
公开(公告)日：2012-02-14
申请号：US11722131
申请日：2005-12-21
申请人： Seong-Rag Kim , Seung-Joon Lee , Dong-Seung Kwon , Seong-Keun Oh , Hee-Goo Han
发明人： Seong-Rag Kim , Seung-Joon Lee , Dong-Seung Kwon , Seong-Keun Oh , Hee-Goo Han
IPC分类号： H03M13/03
CPC分类号： H04L25/03242 , H04L1/0045 , H04L1/06
摘要： A sphere decoder sets a Euclidean distance between a lattice vector obtained by using an MMSE or ZF estimate and a received signal as an initial radius, further reduces the initial radius, and searches lattices points included inside a hypersphere with the further reduced initial radius. In addition, one lattice vector having a minimum Euclidean distance is output. One dimension is selected to reduce an initial radius, and estimates in other dimensions are kept fixed, excluding the selected dimension. Then candidate lattice points are searched in the selected dimension, excluding a current estimate, such that a minimum Euclidean distance and a lattice point estimate corresponding to the minimum Euclidean distance are obtained. The initial radius is updated by the minimum Euclidean distance, and a final lattice vector is constructed by combining a lattice point estimate corresponding to the initial radius and the lattice point estimates in other dimensions.
摘要翻译：球体解码器设置通过使用MMSE或ZF估计获得的格子向量与作为初始半径的接收信号之间的欧氏距离，进一步减小初始半径，并且搜索包含在超球体内的具有进一步减小的初始半径的晶格点。此外，输出具有最小欧几里德距离的一个格子矢量。选择一个维度以减少初始半径，并且将其他维度的估计值保持固定，不包括所选维度。然后，在所选择的维度中搜索候选格点，排除当前估计，使得获得对应于最小欧几里德距离的最小欧几里德距离和格点估计。初始半径通过最小欧几里得距离来更新，并且通过组合对应于初始半径的网格点估计和其他维度中的格点估计来构造最终的格子矢量。

13. 发明授权

US07263118B2 Interference canceling device and method in mobile communication system 失效
标题翻译：移动通信系统中的干扰消除装置和方法
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。

14. 发明授权

US07136410B2 Adaptive interference suppression receiving apparatus for space-time block coded direct sequence/code division multiple access communication system 有权
标题翻译：用于空时块编码的直接序列/码分多址通信系统的自适应干扰抑制接收装置
公开(公告)号：US07136410B2
公开(公告)日：2006-11-14
申请号：US10331946
申请日：2002-12-31
申请人： In-Kyeong Choi , Young-Ho Jung , Seong-Rag Kim , Seung-Chul Hong , Yong-Hoon Lee
发明人： In-Kyeong Choi , Young-Ho Jung , Seong-Rag Kim , Seung-Chul Hong , Yong-Hoon Lee
IPC分类号： H04B1/707 , H03H7/40
CPC分类号： H04B1/71055 , H04B1/7115 , H04B7/04 , H04B7/0854 , H04L2025/03605
摘要： An adaptive interference suppression receiver for a DS/CDMA system includes: input signal generators outputting a part of received signals of receiver antennas that has a coding block's transfer code; adaptive filter blocks filtering a complex signal output from the input signal generators with a tap weight updated based on a constraint MMSE criterion and estimating phase and amplitude components of a specific user channel using the filtering output signal to generate a channel-estimated signal; a signal restorer combining the channel-estimated signal and the filtering output signal and restoring an original signal; a signal selector for selecting known training data signal or the restored signal; and error generators comparing the channel-estimated signal and the filtering output signal and calculating an error between the two signals.
摘要翻译：用于DS / CDMA系统的自适应干扰抑制接收机包括：输入信号发生器，其输出具有编码块传输码的接收机天线的一部分接收信号; 自适应滤波器块利用基于约束MMSE标准更新的抽头权重来过滤来自输入信号发生器的复合信号，并且使用滤波输出信号估计特定用户信道的相位和幅度分量以产生信道估计信号; 组合信道估计信号和滤波输出信号并恢复原始信号的信号恢复器; 用于选择已知训练数据信号或恢复信号的信号选择器; 和误差发生器比较信道估计信号和滤波输出信号，并计算两个信号之间的误差。

15. 发明授权

US06570864B1 Integrated receiving apparatus of subtractive interference cancellation receiver and adaptive MMSE receiver 失效
标题翻译：减法干扰消除接收机和自适应MMSE接收机的综合接收装置
公开(公告)号：US06570864B1
公开(公告)日：2003-05-27
申请号：US09441611
申请日：1999-11-16
申请人： Seong-Rag Kim , Young-Gyun Jeong , Nam-Jin Park , In-Kyeong Choi
发明人： Seong-Rag Kim , Young-Gyun Jeong , Nam-Jin Park , In-Kyeong Choi
IPC分类号： H04Q720
CPC分类号： H04B1/71055 , H04B2201/70701
摘要： A method for canceling an interference signal by using a parallel multi-stage structure in a code division multiple access (CDMA) system, includes the steps of: a) delaying a receiving signal; b) receiving and predicting data and channel parameter from the individual user; c) regenerating the interference signal of the individual user by using the data and the channel parameter predicted by the multiple receiving and predicting; and d) canceling all the interference signals delayed and transferred through the delaying by the interference signal regenerated through the multiple interference regeneration.
摘要翻译：一种通过在码分多址（CDMA）系统中使用并行多级结构来消除干扰信号的方法，包括以下步骤：a）延迟接收信号; b）从个人用户接收和预测数据和信道参数; c）通过使用由多个接收和预测预测的数据和信道参数来再生个体用户的干扰信号; 以及d）通过由多重干扰再生产生的干扰信号通过延迟来消除延迟和传输的所有干扰信号。

16. 发明授权

US06570863B1 Apparatus and method for adaptive CDMA detection based on constrained minimum mean squared error criterion 失效
标题翻译：基于约束最小均方误差准则的自适应CDMA检测装置及方法
公开(公告)号：US06570863B1
公开(公告)日：2003-05-27
申请号：US09441382
申请日：1999-11-16
申请人： Seong-Rag Kim , Young-Gyun Jeong , In-Kyeong Choi , Seo-Young Lee
发明人： Seong-Rag Kim , Young-Gyun Jeong , In-Kyeong Choi , Seo-Young Lee
IPC分类号： H04B7216
CPC分类号： H04B1/7097
摘要： An adaptive apparatus and method for detecting a receiving signal employing constrained minimum mean square error (MMSE) criterion as an adaptive algorithm for detecting CDMA receiving signal. The apparatus comprises an adaptive filtering means; a channel estimating means; a signal restoring means; a selecting means; a reference signal generating means; an error calculating means; and a tap weight controlling means. In the apparatus, an adaptive filter can be normally operated even if compensating a phase and amplitude of a channel at the same time.
摘要翻译：一种用于使用受限最小均方误差（MMSE）准则检测接收信号作为检测CDMA接收信号的自适应算法的自适应装置和方法。该装置包括自适应滤波装置; 信道估计装置; 信号恢复装置; 选择手段; 参考信号发生装置; 误差计算装置; 和抽头重量控制装置。在该装置中，即使在同时补偿信道的相位和幅度，自适应滤波器也可以正常工作。

17. 发明授权

US08265210B2 Iterative receiver and method for detecting transmitted signal thereof 失效
标题翻译：迭代接收机及其发送信号检测方法
公开(公告)号：US08265210B2
公开(公告)日：2012-09-11
申请号：US12515316
申请日：2007-11-13
申请人： Seong-Rag Kim , Jun-Young Nam , Hyun-Kyu Chung
发明人： Seong-Rag Kim , Jun-Young Nam , Hyun-Kyu Chung
IPC分类号： H04L1/00
CPC分类号： H04L1/0048 , H04B7/0854 , H04L1/005 , H04L1/06
摘要： In an iterative receiver, a signal detector estimates interference from an estimated transmitted signal, and cancels the estimated interference from a signal received through an antenna. A decoder performs channel decoding by using the interference cancelled received signal. A soft decision unit performs a soft decision process on the transmitted signal by using the channel decoded signal. A channel estimator estimates a channel by using the soft decision applied transmitted signal and the received signal. A covariance estimator estimates covariance on the sum signal of the interference and noise by using the soft decision applied transmitted signal, the received signal, and the estimated channel. A hard decision unit determines the transmitted signal by using the channel decoded signal after interference cancellation, channel decoding, estimated transmitted signal updating, channel estimation, and covariance estimation are iterated a number of times.
摘要翻译：在迭代接收机中，信号检测器估计来自估计的发射信号的干扰，并且从通过天线接收的信号中消除所估计的干扰。解码器通过使用干扰消除的接收信号来执行信道解码。软判决单元通过使用信道解码信号对所发送的信号进行软判定处理。信道估计器通过使用软判决应用发送信号和接收信号来估计信道。协方差估计器通过使用软判决应用发射信号，接收信号和估计信道来估计干扰和噪声的和信号的协方差。硬判决单元通过使用干扰消除之后的信道解码信号来确定发送信号，信道解码，估计的发送信号更新，信道估计和协方差估计被多次重复。

18. 发明申请

US20100034110A1 ITERATIVE RECEPTION METHOD AND ITERATIVE RECEIVER 失效
标题翻译：迭代接收方法和迭代接收机
公开(公告)号：US20100034110A1
公开(公告)日：2010-02-11
申请号：US12515309
申请日：2007-11-16
申请人： Seong-Rag Kim , Jun-Young Nam , Hyun-Kyu Chung
发明人： Seong-Rag Kim , Jun-Young Nam , Hyun-Kyu Chung
IPC分类号： H04J1/16 , H04B7/216
CPC分类号： H04L25/0204 , H04B1/71075 , H04B17/345 , H04B2201/70702 , H04L25/022 , H04L25/0224 , H04L25/03159 , H04L25/03292 , H04L25/03305 , H04L25/03318 , H04L25/067 , H04L2025/03414 , H04L2025/03426
摘要： An iterative reception method and iterative receiver in a mobile communication system are provided. In order to remove inter-cell interference of a signal that is iteratively received in a multi-cell environment, a soft determination value of different cells excluding a specific cell is re-spread to be used. In addition, in order to improve reception performance of the iterative receiver that performs the interference removal by using the soft determination value, channel estimation is iteratively performed on the iteratively received signal by using a soft determination value of a previous order of the specific cell to update a channel estimation value. Accordingly, it is possible to reduce complexity of implementation and effectively remove the inter-cell interference by using the soft determination value.
摘要翻译：提供了一种移动通信系统中的迭代接收方法和迭代接收机。为了消除在多小区环境中迭代地接收的信号的小区间干扰，重新扩展除了特定小区之外的不同小区的软判定值。此外，为了通过使用软判定值来提高执行干扰去除的迭代接收机的接收性能，通过使用特定小区的先前顺序的软判定值对迭代接收信号迭代地进行信道估计，更新信道估计值。因此，可以通过使用软判定值来降低实现的复杂度并有效地消除小区间干扰。

19. 发明授权

US08325588B2 Iterative reception method and iterative receiver 失效
标题翻译：迭代接收方法和迭代接收机
公开(公告)号：US08325588B2
公开(公告)日：2012-12-04
申请号：US12515309
申请日：2007-11-16
申请人： Seong-Rag Kim , Jun-Young Nam , Hyun-Kyu Chung
发明人： Seong-Rag Kim , Jun-Young Nam , Hyun-Kyu Chung
IPC分类号： H04J11/00 , H04W4/00 , H04B7/216 , H04B1/00
CPC分类号： H04L25/0204 , H04B1/71075 , H04B17/345 , H04B2201/70702 , H04L25/022 , H04L25/0224 , H04L25/03159 , H04L25/03292 , H04L25/03305 , H04L25/03318 , H04L25/067 , H04L2025/03414 , H04L2025/03426
摘要： An iterative reception method and iterative receiver in a mobile communication system are provided. In order to remove inter-cell interference of a signal that is iteratively received in a multi-cell environment, a soft determination value of different cells excluding a specific cell is re-spread to be used. In addition, in order to improve reception performance of the iterative receiver that performs the interference removal by using the soft determination value, channel estimation is iteratively performed on the iteratively received signal by using a soft determination value of a previous order of the specific cell to update a channel estimation value. Accordingly, it is possible to reduce complexity of implementation and effectively remove the inter-cell interference by using the soft determination value.
摘要翻译：提供了一种移动通信系统中的迭代接收方法和迭代接收机。为了消除在多小区环境中迭代地接收的信号的小区间干扰，重新扩展除了特定小区之外的不同小区的软判定值。此外，为了通过使用软判定值来改善执行干扰去除的迭代接收机的接收性能，通过使用特定小区的先前顺序的软判定值对迭代接收的信号迭代地执行信道估计，更新信道估计值。因此，可以通过使用软判定值来降低实现的复杂度并有效地消除小区间干扰。

20. 发明申请

US20090304125A1 ITERATIVE RECEIVER AND METHOD FOR DETECTING TRANSMITTED SIGNAL THEREOF 失效
标题翻译：用于检测其传输信号的迭代接收器和方法
公开(公告)号：US20090304125A1
公开(公告)日：2009-12-10
申请号：US12515316
申请日：2007-11-13
申请人： Seong-Rag Kim , Jun-Young Nam , Hyun-Kyu Chung
发明人： Seong-Rag Kim , Jun-Young Nam , Hyun-Kyu Chung
IPC分类号： H04L27/06
CPC分类号： H04L1/0048 , H04B7/0854 , H04L1/005 , H04L1/06
摘要： In an iterative receiver, a signal detector estimates interference from an estimated transmitted signal, and cancels the estimated interference from a signal received through an antenna. A decoder performs channel decoding by using the interference cancelled received signal. A soft decision unit performs a soft decision process on the transmitted signal by using the channel decoded signal. A channel estimator estimates a channel by using the soft decision applied transmitted signal and the received signal. A covariance estimator estimates covariance on the sum signal of the interference and noise by using the soft decision applied transmitted signal, the received signal, and the estimated channel. A hard decision unit determines the transmitted signal by using the channel decoded signal after interference cancellation, channel decoding, estimated transmitted signal updating, channel estimation, and covariance estimation are iterated a number of times.
摘要翻译：在迭代接收机中，信号检测器估计来自估计的发射信号的干扰，并且从通过天线接收的信号中消除所估计的干扰。解码器通过使用干扰消除的接收信号来执行信道解码。软判决单元通过使用信道解码信号对所发送的信号进行软判定处理。信道估计器通过使用软判决应用发送信号和接收信号来估计信道。协方差估计器通过使用软判决应用发射信号，接收信号和估计信道来估计干扰和噪声的和信号的协方差。硬判决单元通过使用干扰消除之后的信道解码信号来确定发送信号，信道解码，估计的发送信号更新，信道估计和协方差估计被重复多次。

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