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1. 发明授权

US07227890B2 VDSL system based on DMT line coding, and method for determining length of cyclic prefix samples using the system 有权
标题翻译：基于DMT线路编码的VDSL系统，以及使用该系统确定循环前缀样本长度的方法
公开(公告)号：US07227890B2
公开(公告)日：2007-06-05
申请号：US10503347
申请日：2002-04-30
申请人： Chan Moon , Hui-Chul Won , Tae-Hyoung Kim , Seung-Ho Choo , Gi-Hong Im
发明人： Chan Moon , Hui-Chul Won , Tae-Hyoung Kim , Seung-Ho Choo , Gi-Hong Im
IPC分类号： H04B1/38
CPC分类号： H04L27/2607 , H04L1/0007
摘要： Disclosed is a VDSL (very high bit-rate digital subscriber line) system on the DMT line coding method basis and a method for determining a length of cyclic prefix samples using the system. The VDSL system comprises a transmitter data including cyclic prefix samples through a channel; a receiver for receiving the data including the cyclic prefix samples; a controller for controlling the transmitter and the receiver to control an initialization operation including handshake, training, channel analysis, and exchange, and a data transmission operation after the initialization operation; and a cyclic prefix sample length estimator for estimating an optimized length of the cyclic prefix sample on the basis of the correlation between the cyclic prefix sample and other data. According to the present invention, since no complex TEQ configuration required when fixing and using the length of the cyclic prefix sample is used, its configuration becomes simpler, and the optimized length of the cyclic prefix sample can be accurately determined.
摘要翻译：公开了基于DMT线路编码方法的VDSL（非常高的比特率数字用户线路）系统，以及使用该系统确定循环前缀样本的长度的方法。 VDSL系统包括通过信道包括循环前缀样本的发射机数据; 用于接收包括循环前缀样本的数据的接收器; 用于控制发送器和接收器以控制包括握手，训练，频道分析和交换的初始化操作的控制器，以及初始化操作之后的数据传输操作; 以及循环前缀样本长度估计器，用于基于循环前缀样本与其他数据之间的相关性来估计循环前缀样本的优化长度。根据本发明，由于在使用固定和使用循环前缀样本的长度时不需要复杂的TEQ配置，所以其配置变得更简单，并且可以准确地确定循环前缀样本的优化长度。

2. 发明申请

US20060050776A1 Vdsl system based on dmt line coding, and method for determining length of cyclic prefix samples using the system 有权
标题翻译：基于dmt线编码的Vdsl系统，以及使用该系统确定循环前缀样本长度的方法
公开(公告)号：US20060050776A1
公开(公告)日：2006-03-09
申请号：US10503347
申请日：2002-04-30
申请人： Chan Moon , Hui-Chul Won , Tae-Hyoung Kim , Seung-Ho Choo , Gi-Hong Im
发明人： Chan Moon , Hui-Chul Won , Tae-Hyoung Kim , Seung-Ho Choo , Gi-Hong Im
IPC分类号： H04B1/38
CPC分类号： H04L27/2607 , H04L1/0007
摘要： Disclosed is a VDSL (very high bit-rate digital subscriber line) system on the DMT line coding method basis and a method for determining a length of cyclic prefix samples using the system. The VDSL system comprises a transmitter data including cyclic prefix samples through a channel; a receiver for receiving the data including the cyclic prefix samples; a controller for controlling the transmitter and the receiver to control an initialization operation including handshake, training, channel analysis, and exchange, and a data transmission operation after the initialization operation; and a cyclic prefix sample length estimator for estimating an optimized length of the cyclic prefix sample on the basis of the correlation between the cyclic prefix sample and other data. According to the present invention, since no complex TEQ configuration required when fixing and using the length of the cyclic prefix sample is used, its configuration becomes simpler, and the optiized length of the cyclic prefix sample can be accurately determined.
摘要翻译：公开了基于DMT线路编码方法的VDSL（非常高的比特率数字用户线路）系统，以及使用该系统确定循环前缀样本的长度的方法。 VDSL系统包括通过信道包括循环前缀样本的发射机数据; 用于接收包括循环前缀样本的数据的接收器; 用于控制发送器和接收器以控制包括握手，训练，频道分析和交换的初始化操作的控制器，以及初始化操作之后的数据传输操作; 以及循环前缀样本长度估计器，用于基于循环前缀样本与其他数据之间的相关性来估计循环前缀样本的优化长度。根据本发明，由于在使用固定和使用循环前缀样本的长度时不需要复杂的TEQ配置，所以其配置变得更简单，并且可以准确地确定循环前缀样本的优化长度。

3. 发明申请

US20060215541A1 Transceiving apparatus and method using space-frequency block-coded single-carrier frequency domain equalization 有权
标题翻译：收发装置和方法采用空频块编码的单载波频域均衡
公开(公告)号：US20060215541A1
公开(公告)日：2006-09-28
申请号：US11387415
申请日：2006-03-23
申请人： Jong-Hyung Kwun , Eung-Sun Kim , Jong-Hyeuk Lee , Gi-Hong Im , Hui-Chul Won , Jin-Ho Jang
发明人： Jong-Hyung Kwun , Eung-Sun Kim , Jong-Hyeuk Lee , Gi-Hong Im , Hui-Chul Won , Jin-Ho Jang
IPC分类号： H04J11/00
CPC分类号： H04L1/0606 , H04B7/06 , H04L25/03159
摘要： Disclosed is a transceiving apparatus and method in which a space frequency block coding (SFBC) technique is applied to the SC-FDE technique. The transceiving method encodes an input signal into frequency-domain blocks so as to output at least two signal blocks in parallel to each other, inserts a cyclic prefix (CP) into the output signal blocks, and outputs the signal blocks through the same sub-channel by means of corresponding antenna.
摘要翻译：公开了一种将空间频率块编码（SFBC）技术应用于SC-FDE技术的收发装置和方法。收发方法将输入信号编码成频域块，以便彼此并行地输出至少两个信号块，将循环前缀（CP）插入到输出信号块中，并通过相同子帧输出信号块，通过相应的天线。

4. 发明申请

US20050008085A1 Transmitting and receiving apparatus and method in an Orthogonal Frequency Division Multiplexing system using an insufficient cyclic prefix 审中-公开
标题翻译：在正交频分复用系统中使用不充分的循环前缀的发送和接收设备和方法
公开(公告)号：US20050008085A1
公开(公告)日：2005-01-13
申请号：US10846465
申请日：2004-05-14
申请人： Jong-Hyeuk Lee , Yung-soo Kim , Gi-Hong Im , Hui-Chul Won , Cheol-Jin Park
发明人： Jong-Hyeuk Lee , Yung-soo Kim , Gi-Hong Im , Hui-Chul Won , Cheol-Jin Park
IPC分类号： H04J11/00 , H04L25/03 , H04L27/26 , H04K1/10
CPC分类号： H04L5/006 , H04L5/0007 , H04L5/0046 , H04L2025/03414
摘要： A preprocessing apparatus and method for a transmitter and a receiver to prevent system performance degradation caused by Inter-Channel Interference (ICI) or inter-symbol interference (ISI) in an OFDM system. In the OFDM system using N carriers having different frequency bands and K carriers of the N carriers designated as redundant carriers, the transmitter renders ICI-causing parts to be zeroes in a data frame, when a cyclic prefix is not longer than a channel impulse response. Therefore, the ICI is prevented. The receiver eliminates the ISI involved in a current frame using an interference estimated from a previous data frame. Therefore, noise spread caused by the use of redundant carriers is prevented and system complexity is remarkably reduced.
摘要翻译：一种用于在OFDM系统中防止由信道间干扰（ICI）或符号间干扰（ISI）引起的系统性能下降的发射机和接收机的预处理装置和方法。在使用具有不同频带的N个载波的OFDM系统和指定为冗余载波的N个载波的K个载波的情况下，当循环前缀不长于信道脉冲响应时，发射机在数据帧中使ICI引起的部分为零。因此，ICI被阻止。接收器使用从先前数据帧估计的干扰消除了当前帧中涉及的ISI。因此，防止使用冗余载波引起的噪声扩展，并且系统复杂度显着降低。

5. 发明申请

US20050007983A1 System and method for channel estimation in an OFDM mobile communication system 有权
标题翻译： OFDM移动通信系统中信道估计的系统和方法
公开(公告)号：US20050007983A1
公开(公告)日：2005-01-13
申请号：US10840584
申请日：2004-05-06
申请人： Jong-Hyeuk Lee , Yung-Soo Kim , Gi-Hong Im , Hui-Chul Won , Cheol-Jin Park
发明人： Jong-Hyeuk Lee , Yung-Soo Kim , Gi-Hong Im , Hui-Chul Won , Cheol-Jin Park
IPC分类号： H04J11/00 , H04B7/06 , H04L1/06 , H04L25/02 , H04L27/26 , H04Q7/00
CPC分类号： H04L27/2602 , H04B7/0669 , H04L1/0618 , H04L25/0204 , H04L25/022
摘要： 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.
摘要翻译：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。

6. 发明授权

US07307974B2 System and method for channel estimation in an OFDM mobile communication system 有权
标题翻译： OFDM移动通信系统中信道估计的系统和方法
公开(公告)号：US07307974B2
公开(公告)日：2007-12-11
申请号：US10840584
申请日：2004-05-06
申请人： Jong-Hyeuk Lee , Yung-soo Kim , Gi-Hong Im , Hui-Chul Won , Cheol-Jin Park
发明人： Jong-Hyeuk Lee , Yung-soo Kim , Gi-Hong Im , Hui-Chul Won , Cheol-Jin Park
IPC分类号： H04Q7/00
CPC分类号： H04L27/2602 , H04B7/0669 , H04L1/0618 , H04L25/0204 , H04L25/022
摘要： 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.
摘要翻译：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。

7. 发明申请

US20060159196A1 Apparatus and method for channel estimation and cyclic prefix reconstruction in an OFDM-STBC mobile communication system 有权
公开(公告)号：US20060159196A1
公开(公告)日：2006-07-20
申请号：US11335268
申请日：2006-01-19
申请人： Jong-Hyung Kwun , Eung-Sun Kim , Jong-Hyeuk Lee , Gi-Hong Im , Hui-Chul Won
发明人： Jong-Hyung Kwun , Eung-Sun Kim , Jong-Hyeuk Lee , Gi-Hong Im , Hui-Chul Won
IPC分类号： H04L1/02 , H04B1/10 , H04L27/06
CPC分类号： H04L1/0631 , H04L1/0048 , H04L1/005 , H04L25/0212 , H04L25/03006 , H04L27/2607 , H04L2025/03617
摘要： An apparatus and method for channel estimation and CP reconstruction in an OFDM-STBC mobile communication system are provided. An ISI canceller cancels ISI signal components from first and second received symbol sequences. A cyclicity restorer cancels ICI signal components from the ISI-cancelled first received symbol sequence and the ISI-cancelled second received symbol sequence. A recoverer acquires the recovered sequence estimates of the ICI-cancelled first received symbol sequence and the ICI-cancelled second received symbol sequence by decoding. The ICI cancellation of the ISI-cancelled first and second received symbol sequences and the ISI cancellation of the second received symbol sequence are iterated a predetermined number of times.

8. 发明授权

US07680200B2 Transceiving apparatus and method using space-frequency block-coded single-carrier frequency domain equalization 有权
标题翻译：收发装置和方法采用空频块编码的单载波频域均衡
公开(公告)号：US07680200B2
公开(公告)日：2010-03-16
申请号：US11387415
申请日：2006-03-23
申请人： Jong-Hyung Kwun , Eung-Sun Kim , Jong-Hyeuk Lee , Gi-Hong Im , Hui-Chul Won , Jin-Ho Jang
发明人： Jong-Hyung Kwun , Eung-Sun Kim , Jong-Hyeuk Lee , Gi-Hong Im , Hui-Chul Won , Jin-Ho Jang
IPC分类号： H04K1/10
CPC分类号： H04L1/0606 , H04B7/06 , H04L25/03159
摘要： Disclosed is a transceiving apparatus and method in which a space frequency block coding (SFBC) technique is applied to the SC-FDE technique. The transceiving method encodes an input signal into frequency-domain blocks so as to output at least two signal blocks in parallel to each other, inserts a cyclic prefix (CP) into the output signal blocks, and outputs the signal blocks through the same sub-channel using a corresponding antenna.
摘要翻译：公开了一种将空间频率块编码（SFBC）技术应用于SC-FDE技术的收发装置和方法。收发方法将输入信号编码成频域块，以便彼此并行地输出至少两个信号块，将循环前缀（CP）插入到输出信号块中，并通过相同子帧输出信号块，通道使用相应的天线。

9. 发明授权

US07586992B2 Apparatus and method for channel estimation and cyclic prefix reconstruction in an OFDM-STBC mobile communication system 有权
标题翻译： OFDM-STBC移动通信系统中的信道估计和循环前缀重构的装置和方法
公开(公告)号：US07586992B2
公开(公告)日：2009-09-08
申请号：US11335268
申请日：2006-01-19
申请人： Jong-Hyung Kwun , Eung-Sun Kim , Jong-Hyeuk Lee , Gi-Hong Im , Hui-Chul Won
发明人： Jong-Hyung Kwun , Eung-Sun Kim , Jong-Hyeuk Lee , Gi-Hong Im , Hui-Chul Won
IPC分类号： H04L1/02
CPC分类号： H04L1/0631 , H04L1/0048 , H04L1/005 , H04L25/0212 , H04L25/03006 , H04L27/2607 , H04L2025/03617
摘要： An apparatus and method for channel estimation and CP reconstruction in an OFDM-STBC mobile communication system are provided. An ISI canceller cancels ISI signal components from first and second received symbol sequences. A cyclicity restorer cancels ICI signal components from the ISI-cancelled first received symbol sequence and the ISI-cancelled second received symbol sequence. A recoverer acquires the recovered sequence estimates of the ICI-cancelled first received symbol sequence and the ICI-cancelled second received symbol sequence by decoding. The ICI cancellation of the ISI-cancelled first and second received symbol sequences and the ISI cancellation of the second received symbol sequence are iterated a predetermined number of times.
摘要翻译：提供了一种在OFDM-STBC移动通信系统中用于信道估计和CP重构的装置和方法。 ISI消除器从第一和第二接收符号序列中取消ISI信号分量。循环恢复器从ISI取消的第一接收符号序列和ISI取消的第二接收符号序列中取消ICI信号分量。恢复器通过解码获取ICI取消的第一接收符号序列和ICI取消的第二接收符号序列的恢复序列估计。 ISI取消的第一和第二接收符号序列的ICI消除和第二接收符号序列的ISI消除被重复预定次数。

10. 发明申请

US20070258528A1 Apparatus for reducing clipping noise in a broadband wireless communication system and method thereof 审中-公开
标题翻译：一种用于在宽带无线通信系统中减少限幅噪声的装置及其方法
公开(公告)号：US20070258528A1
公开(公告)日：2007-11-08
申请号：US11787433
申请日：2007-04-16
申请人： Jong-Hyung Kwun , Eung-Sun Kim , Jong-Hyeuk Lee , Uj-Kun Kwon , Gi-Hong Im , Jung-Hun Ryu
发明人： Jong-Hyung Kwun , Eung-Sun Kim , Jong-Hyeuk Lee , Uj-Kun Kwon , Gi-Hong Im , Jung-Hun Ryu
IPC分类号： H04L27/28 , H04L25/08 , H04L1/00
CPC分类号： H04L27/2623 , H04L27/2647
摘要： Provided are an apparatus for reducing clipping noise in a broadband wireless communication system in which a clipping method is used and a method thereof. The method includes, when clipped signals are received, decoding and equalizing the received signals to determine transmitted symbols, comparing the magnitudes of the amplitudes of the determined transmitted symbols with a predetermined reference value, and reconstructing signals using the amplitudes of the transmitted symbols and the phases of the received signals when it is determined that the magnitudes of the amplitudes of the transmitted symbols are greater than the reference value.
摘要翻译：提供了一种用于在其中使用限幅方法的宽带无线通信系统中减少削波噪声的装置及其方法。该方法包括：当接收到限幅信号时，对接收到的信号进行解码和均衡以确定发送的符号，将所确定的发送符号的幅度的大小与预定的参考值进行比较，以及使用所发送的符号的幅度和当确定发送符号的幅度的大小大于参考值时，接收信号的相位。

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