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。

公开(公告)号：US20060087960A1

公开(公告)日：2006-04-27

申请号：US11116909

申请日：2005-04-28

申请人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Gi-Hong Im ,  Jong-Bu Lim

发明人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Gi-Hong Im ,  Jong-Bu Lim

IPC分类号： H04J11/00

CPC分类号： H04B7/02 ,  H04L1/0048 ,  H04L1/005 ,  H04L1/0055 ,  H04L1/0606 ,  H04L27/2602

摘要： A new diversity scheme for orthogonal frequency division multiplexing/multi-input multi-output (OFDM/MIMO) systems. The new diversity scheme, i.e., turbo layered space-frequency coded OFDM (TLSFC-OFDM), uses the turbo principle with space hopping (SH). The TLSFC-OFDM system uses a successive interference cancellation (SIC) algorithm to reduce the number of iterations. As a result, this scheme reduces computational complexity. Simulation results show that the SIC-based TLSFC-OFDM system outperforms a conventional OFDM/Horizontal Bell Labs Layered Space-Time (H-BLAST) system using a horizontal coding scheme.

摘要翻译： 一种用于正交频分复用/多输入多输出（OFDM / MIMO）系统的新分集方案。 新的分集方案，即turbo分层空间频率编码的OFDM（TLSFC-OFDM），使用具有空间跳变（SH）的turbo原理。 TLSFC-OFDM系统使用连续干扰消除（SIC）算法来减少迭代次数。 因此，该方案降低了计算复杂度。 仿真结果表明，基于SIC的TLSFC-OFDM系统优于使用水平编码方案的常规OFDM /水平贝尔实验室分层时空（H-BLAST）系统。

公开(公告)号：US08005031B2

公开(公告)日：2011-08-23

申请号：US11649168

申请日：2007-01-03

申请人： Tae-Won Yune ,  Jong-Hyeuk Lee ,  Gi-Hong Im ,  Eung-Sun Kim ,  Jong-Hyung Kwun

发明人： Tae-Won Yune ,  Jong-Hyeuk Lee ,  Gi-Hong Im ,  Eung-Sun Kim ,  Jong-Hyung Kwun

IPC分类号： H04B7/00

CPC分类号： H04L1/0618

摘要： A method and apparatus for transmitting and receiving a signal in a wireless communication system. The wireless communication system includes a transmitter with at least four transmit antennas and a receiver with at least one receive antenna. Space Frequency Block Coding (SFBC) processes are performed for input signals on a basis of two antenna pairs. Signal blocks whose number corresponds to the number of transmit antennas are output. A Space Time Block Coding (STBC) process is performed for the signal blocks generated according to the antenna pairs. Signals carried by single carriers are transmitted through the at least four transmit antennas mapped to the signal blocks.

摘要翻译： 一种用于在无线通信系统中发送和接收信号的方法和装置。 无线通信系统包括具有至少四个发射天线的发射机和具有至少一个接收天线的接收机。 对于基于两个天线对的输入信号执行空间频率块编码（SFBC）处理。 输出与发送天线数对应的信号块。 对根据天线对产生的信号块执行空时块编码（STBC）处理。 由单载波携带的信号通过映射到信号块的至少四个发射天线发射。

公开(公告)号：US07826517B2

公开(公告)日：2010-11-02

申请号：US11710856

申请日：2007-02-26

申请人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jong-Hyun Kwun ,  Jong-Bu Lim ,  Gi-Hong Im ,  Chan-Ho Choi

发明人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jong-Hyun Kwun ,  Jong-Bu Lim ,  Gi-Hong Im ,  Chan-Ho Choi

IPC分类号： H04B1/69 ,  H04B1/707 ,  H04B1/713

CPC分类号： H04B7/0854 ,  H04L1/0656

摘要： A receiver for ICI cancellation in a MIMO system is provided, in which a detection orderer determines a subcarrier detection order according to SINRs of subcarriers in an I-CMOS, a detector receives a vector on the subcarriers and a priori information from a decoder according to the subcarrier detection order and iteratively estimates the received vector using the a priori information, and the decoder decodes an ICI-cancelled signal according to the estimate.

摘要翻译： 提供了一种MIMO系统中用于ICI消除的接收机，其中检测对象根据I-CMOS中的子载波的SINR确定子载波检测顺序，检测器接收到子载波上的向量，根据 子载波检测顺序，并使用先验信息迭代地估计接收到的矢量，并且解码器根据估计解码ICI消除信号。

公开(公告)号：US20070248151A1

公开(公告)日：2007-10-25

申请号：US11710856

申请日：2007-02-26

申请人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jong-Hyun Kwun ,  Jong-Bu Lim ,  Gi-Hong Im ,  Chan-Ho Choi

发明人： Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Jong-Hyun Kwun ,  Jong-Bu Lim ,  Gi-Hong Im ,  Chan-Ho Choi

IPC分类号： H04B1/00

CPC分类号： H04B7/0854 ,  H04L1/0656

摘要： A receiver for ICI cancellation in a MIMO system is provided, in which a detection orderer determines a subcarrier detection order according to SINRs of subcarriers in an I-CMOS, a detector receives a vector on the subcarriers and a priori information from a decoder according to the subcarrier detection order and iteratively estimates the received vector using the a priori information, and the decoder decodes an ICI-cancelled signal according to the estimate.

摘要翻译： 提供了一种MIMO系统中用于ICI消除的接收机，其中检测对象根据I-CMOS中的子载波的SINR确定子载波检测顺序，检测器接收到子载波上的向量，根据 子载波检测顺序，并使用先验信息迭代地估计接收到的矢量，并且解码器根据估计解码ICI消除信号。

公开(公告)号：US20070230383A1

公开(公告)日：2007-10-04

申请号：US11649168

申请日：2007-01-03

申请人： Tae-Won Yune ,  Jong-Hyeuk Lee ,  Gi-Hong Im ,  Eung-Sun Kim ,  Jong-Hyung Kwun

发明人： Tae-Won Yune ,  Jong-Hyeuk Lee ,  Gi-Hong Im ,  Eung-Sun Kim ,  Jong-Hyung Kwun

IPC分类号： H04B7/00

CPC分类号： H04L1/0618

摘要： A method and apparatus for transmitting and receiving a signal in a wireless communication system. The wireless communication system includes a transmitter with at least four transmit antennas and a receiver with at least one receive antenna. Space Frequency Block Coding (SFBC) processes are performed for input signals on a basis of two antenna pairs. Signal blocks whose number corresponds to the number of transmit antennas are output. A Space Time Block Coding (STBC) process is performed for the signal blocks generated according to the antenna pairs. Signals carried by single carriers are transmitted through the at least four transmit antennas mapped to the signal blocks.

摘要翻译： 一种用于在无线通信系统中发送和接收信号的方法和装置。 无线通信系统包括具有至少四个发射天线的发射机和具有至少一个接收天线的接收机。 对于基于两个天线对的输入信号执行空间频率块编码（SFBC）处理。 输出与发送天线数对应的信号块。 对根据天线对产生的信号块执行空时块编码（STBC）处理。 由单载波携带的信号通过映射到信号块的至少四个发射天线发射。

公开(公告)号：US07535970B2

公开(公告)日：2009-05-19

申请号：US10924463

申请日：2004-08-23

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

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

IPC分类号： H04L27/00

CPC分类号： H04B7/061 ,  H04B7/0669 ,  H04W52/42

摘要： 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.

摘要翻译： 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：US20070206691A1

公开(公告)日：2007-09-06

申请号：US11703266

申请日：2007-02-07

申请人： Cheol-Woo You ,  Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Yung-Soo Kim

发明人： Cheol-Woo You ,  Eung-Sun Kim ,  Jong-Hyeuk Lee ,  Joo-Hwan Chun ,  Kyung-Chun Lee ,  Yung-Soo Kim

IPC分类号： H04K1/10

CPC分类号： H04L25/03343 ,  H04L5/023 ,  H04L25/0226 ,  H04L2025/03802

摘要： Disclosed is a method for transmitting an uplink signal by a mobile station in a mobile communication system using an OFDMA scheme. The method includes estimating a downlink channel status by using a signal received from a base station; determining a precoding matrix by using the estimated downlink channel status; and transmitting a signal obtained by multiplying an uplink signal to be transmitted by the precoding matrix to the base station.

摘要翻译： 公开了一种移动台在使用OFDMA方案的移动通信系统中发送上行链路信号的方法。 该方法包括：使用从基站接收的信号来估计下行链路信道状态; 通过使用所估计的下行链路信道状态来确定预编码矩阵; 并且将通过预编码矩阵发送的上行链路信号乘以基站而获得的信号。

公开(公告)号：US07206353B2

公开(公告)日：2007-04-17

申请号：US10225420

申请日：2002-08-22

申请人： Sung-Jin Kim ,  Ki-Ho Kim ,  Hyeon-Woo Lee ,  Yong-Suk Lee ,  Jong-Hyeuk Lee ,  Yung-Soo Kim

发明人： Sung-Jin Kim ,  Ki-Ho Kim ,  Hyeon-Woo Lee ,  Yong-Suk Lee ,  Jong-Hyeuk Lee ,  Yung-Soo Kim

IPC分类号： H04L7/02 ,  H04L27/36 ,  H04B7/02 ,  H04B7/08

CPC分类号： H04B7/0634 ,  H04B7/086

摘要： A mobile communication apparatus having an antenna array and a mobile communication method performed in the mobile communication apparatus, wherein the mobile communication apparatus includes a base station and mobile station, each having an antenna array. The mobile station measures the downlink characteristics of a channel for each antenna from a signal received from a base station, determines long-term information in which the correlation property of the channel for each antenna has been reflected from the measured downlink characteristics, transforms the long-term information into a feedback signal, and transmits the feedback signal to the base station. The base station receives the feedback signal, restores the long-term information from the received feedback signal, performs basis mapping and basis transformation on a dedicated physical channel signal using the restored long-term information, adds the basis-mapped and basis-transformed signal to each of pilot channel signals, and transmits the addition results to the mobile station.

摘要翻译： 一种具有在移动通信装置中执行的天线阵列和移动通信方法的移动通信装置，其中移动通信装置包括基站和移动台，每个基站和移动台具有天线阵列。 移动台根据从基站接收到的信号测量每个天线的信道的下行链路特性，确定其中每个天线的信道的相关属性已经从测量的下行链路特性反映的长期信息， 将信息输入到反馈信号中，并将反馈信号发送到基站。 基站接收反馈信号，从接收到的反馈信号中恢复长期信息，使用恢复的长期信息对专用物理信道信号执行基础映射和基变换，将基准映射和基准变换信号 对每个导频信道信号，并将相加结果发送给移动台。

公开(公告)号：US20050111566A1

公开(公告)日：2005-05-26

申请号：US10924463

申请日：2004-08-23

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

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

IPC分类号： H04B7/005 ,  H04B7/06 ,  H04L27/00

CPC分类号： H04B7/061 ,  H04B7/0669 ,  H04W52/42

摘要： 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.

摘要翻译： 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。