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1. 发明授权

US08345806B2 Apparatus and method for detecting signal based on QR-decomposition in multiple input multiple output wireless communication system 有权
标题翻译：在多输入多输出无线通信系统中基于QR分解检测信号的装置和方法
公开(公告)号：US08345806B2
公开(公告)日：2013-01-01
申请号：US12154954
申请日：2008-05-28
申请人： Sung-Yoon Jung , Sang-Boh Yun , Young-Hoon Kwon , Sung-Soo Hwang , Jong-Ho Lee , Hyun-Cheol Park , Hyoun-Kuk Kim , Ki-Hwan Jeon
发明人： Sung-Yoon Jung , Sang-Boh Yun , Young-Hoon Kwon , Sung-Soo Hwang , Jong-Ho Lee , Hyun-Cheol Park , Hyoun-Kuk Kim , Ki-Hwan Jeon
IPC分类号： H04B7/10
CPC分类号： H04L25/0206
摘要： An apparatus and a method are provided for detecting N number of TX signals in a MIMO wireless communication system. The apparatus includes an RF processor, a channel estimator, and a signal detector. The RF processor converts signals, received through multiple antennas, into baseband signals. The channel estimator estimates channel information of the respective antennas by using the received signals. The signal detector arranges the baseband signals of the respective antennas on the basis of the channel information, calculates a threshold value of each stage, and selects symbols with a cumulative metric smaller than or equal to the threshold value as candidates at each stage, to detect a TX signal vector with N number of symbols.
摘要翻译：提供了一种用于在MIMO无线通信系统中检测N个TX信号的装置和方法。该装置包括RF处理器，信道估计器和信号检测器。 RF处理器将通过多个天线接收的信号转换为基带信号。信道估计器通过使用所接收的信号来估计各个天线的信道信息。信号检测器基于信道信息布置各个天线的基带信号，计算每一级的阈值，并且选择具有小于或等于阈值的累积度量的符号作为每个级的候选，以检测具有N个符号的TX信号向量。

2. 发明授权

US07822144B2 Communication system having reduced delay time 有权
标题翻译：通信系统延迟时间缩短
公开(公告)号：US07822144B2
公开(公告)日：2010-10-26
申请号：US11486179
申请日：2006-07-14
申请人： Jae-hyon Kim , Young-hwan Kim , Hyoun kuk Kim , Hyun cheol Park , Seong-soo Lee , Jae seung Son
发明人： Jae-hyon Kim , Young-hwan Kim , Hyoun kuk Kim , Hyun cheol Park , Seong-soo Lee , Jae seung Son
IPC分类号： H04L27/00
CPC分类号： H04L27/001
摘要： A communication system includes a transmitter having a signal generator for generating a signal for transmitting data, a transmission delay unit for repeatedly delaying the signal from the signal generator for a predetermined delay time within a symbol period and generating corresponding delayed signals, and a selector for selectively providing one of the delayed signals from the transmission delay unit to an antenna; and a receiver having a reception delay unit for receiving the signal from the transmitter and delaying the signal as long as the delay time of the transmission delay unit, and a data judgment block for discriminating data bits of the signal from the transmitter by comparing the signal from the transmitter with the delayed signal from the reception delay unit. According to the communication system, the delay time can be accurately adjusted even if the delay line is shortened, and the data bits of the communication signal can be accurately judged in the receiver side.
摘要翻译：通信系统包括具有用于产生用于发送数据的信号的信号发生器的发送器，用于在符号周期内重复地延迟来自信号发生器预定延迟时间的信号并产生相应的延迟信号的发送延迟单元，以及用于选择性地将所述延迟信号中的一个从所述传输延迟单元提供给天线; 以及接收机，具有接收延迟单元，用于从发射机接收信号，并且只要传输延迟单元的延迟时间延迟信号;以及数据判断块，用于通过比较信号来识别来自发射机的信号的数据位来自发射机，具有来自接收延迟单元的延迟信号。根据通信系统，即使延迟线被缩短，也能够精确地调整延迟时间，并且可以在接收机侧准确地判断通信信号的数据位。

3. 发明申请

US20060029149A1 Method and apparatus for receiving signals in MIMO system 审中-公开
标题翻译：用于在MIMO系统中接收信号的方法和装置
公开(公告)号：US20060029149A1
公开(公告)日：2006-02-09
申请号：US11197144
申请日：2005-08-04
申请人： Hyoun-Kuk Kim , Hyun-Cheol Park , Seung-Bum Suh , Eoi-Young Choi
发明人： Hyoun-Kuk Kim , Hyun-Cheol Park , Seung-Bum Suh , Eoi-Young Choi
IPC分类号： H04L1/02
CPC分类号： H04L25/03057 , H04L2025/03375 , H04L2025/0349
摘要： An improved receiver for a multicarrier-based MIMO (Multiple-Input Multiple-Output) system is provided. A MIMO receiving apparatus includes a detection priority decision unit, which receives via N receiving antennas signals transmitted from M transmitting antennas and determines the detection priorities of the signals, and a signal detector, which successively detects the signals in a decreasing order from a signal having a higher priority according to the detection priorities determined by the detection priority decision unit. System complexity can be reduced by minimizing the number of the inverse matrix calculations required for an SIC mechanism using one MIMO DFE and MISO DFEs corresponding to the number of transmitting antennas.
摘要翻译：提供了一种用于基于多载波的MIMO（多输入多输出）系统的改进的接收机。 MIMO接收装置包括：检测优先级决定单元，其经由N个接收天线接收从M个发送天线发送的信号，并确定信号的检测优先级;以及信号检测器，其从具有根据由检测优先级决定单元确定的检测优先级，优先级更高。可以通过使用与发射天线数量相对应的一个MIMO DFE和MISO DFE来最小化SIC机制所需的逆矩阵计算的数量来减少系统复杂度。

4. 发明授权

US08005170B2 Apparatus and method for detecting a signal in a communication system using multiple antennas 有权
标题翻译：用于在使用多个天线的通信系统中检测信号的装置和方法
公开(公告)号：US08005170B2
公开(公告)日：2011-08-23
申请号：US11871598
申请日：2007-10-12
申请人： Joo-Hyun Lee , Sang-Boh Yun , Young-Hoon Kwon , Sung-Soo Hwang , Jong-In Kim , Hyun-Cheol Park , Hyoun-Kuk Kim , Ki-Hwan Jeon
发明人： Joo-Hyun Lee , Sang-Boh Yun , Young-Hoon Kwon , Sung-Soo Hwang , Jong-In Kim , Hyun-Cheol Park , Hyoun-Kuk Kim , Ki-Hwan Jeon
IPC分类号： H03D1/00
CPC分类号： H04L1/0045 , H04L1/0656
摘要： A method and apparatus for detecting a signal in a communication system using at least two transmit antennas are provided. The signal detection method and apparatus includes selecting a symbol corresponding to a lowest branch metric from among symbols, the number of which corresponds to a modulation scheme, determining a candidate symbol by extending a process of selecting a symbol corresponding to a lowest branch metric from among the selected symbols, to a number which is less by one than the number of the transmit antennas, setting an accumulated branch metric of the candidate symbol as a threshold, removing a symbol having an accumulated branch metric higher than the threshold, and selecting, as a last received symbol, a symbol corresponding to a path having the lowest accumulated branch metric among paths selected without being removed until a last stage.
摘要翻译：提供了一种使用至少两个发射天线来检测通信系统中的信号的方法和装置。信号检测方法和装置包括从符号中选择与最低分支度量相对应的符号，其数量对应于调制方案，通过扩展选择对应于最低分支度量的符号的处理来确定候选符号，将所选择的符号设置为比发送天线的数量小一个的数字，将候选符号的累积分支度量设置为阈值，去除具有高于阈值的累积分支度量的符号，并且选择为最后接收的符号，对应于在所选择的路径中具有最低累积分支度量的路径的符号，而不被去除直到最后阶段。

5. 发明授权

US07787555B2 Multi-input multi-output system and method for demodulating a transmitting vector in a receiver of the system 失效
标题翻译：用于解调系统的接收机中的发射矢量的多输入多输出系统和方法
公开(公告)号：US07787555B2
公开(公告)日：2010-08-31
申请号：US11739209
申请日：2007-04-24
申请人： Tae Joon Kim , Ik Soo Eo , Hyoun Kuk Kim , Hyun Cheol Park
发明人： Tae Joon Kim , Ik Soo Eo , Hyoun Kuk Kim , Hyun Cheol Park
IPC分类号： H04K1/10 , H04L27/28 , H04L1/02 , H04B7/02 , H04B7/08
CPC分类号： H04B7/0434
摘要： Provided is a receiver of a multi-input multi-output system using multiple antennas, the receiver including: a first multiplying unit for multiplying a vector r received via the antenna by a Hermitian matrix Q; a candidate transmitting vector generating unit for detecting a signal on a lowest modulation order transmitting antenna from the received vector y output from the first multiplying unit, creating as many symbol candidates as the modulation order of the detected signal, and generating a candidate transmitting vector using each symbol candidate; a transmitting vector determining unit for obtaining a distance between each candidate transmitting vector generated by the candidate transmitting vector generating unit and the received vector y to determine a final transmitting vector; and a demodulating unit for demodulating the final transmitting vector determined by the transmitting vector determining unit. Since the receiver detects a transmitting vector with reference to a signal on a lowest modulation order transmitting antenna, the receiver can have a simpler structure.
摘要翻译：提供了一种使用多个天线的多输入多输出系统的接收机，所述接收机包括：第一乘法单元，用于将通过所述天线接收的矢量r乘以Hermitian矩阵Q; 候选发射矢量产生单元，用于从从第一乘法单元输出的接收矢量y中检测最低调制阶发射天线上的信号，创建与检测信号的调制阶数一样多的符号候选，并使用每个符号候选人; 发送矢量确定单元，用于获得由候选发射矢量生成单元生成的每个候选发射矢量与接收矢量y之间的距离，以确定最终发射矢量; 以及解调单元，用于解调由发送矢量确定单元确定的最终发送矢量。由于接收机参考最低调制阶发射天线上的信号检测发射矢量，所以接收机可以具有更简单的结构。

6. 发明申请

US20080298491A1 Apparatus and method for detecting signal based on QR-decomposition in multiple input multiple output wireless communication system 有权
标题翻译：在多输入多输出无线通信系统中基于QR分解检测信号的装置和方法
公开(公告)号：US20080298491A1
公开(公告)日：2008-12-04
申请号：US12154954
申请日：2008-05-28
申请人： Sung-Yoon Jung , Sang-Boh Yun , Young-Hoon Kwon , Sung-Soo Hwang , Jong-Ho Lee , Hyun-Cheol Park , Hyoun-Kuk Kim , Ki-Hwan Jeon
发明人： Sung-Yoon Jung , Sang-Boh Yun , Young-Hoon Kwon , Sung-Soo Hwang , Jong-Ho Lee , Hyun-Cheol Park , Hyoun-Kuk Kim , Ki-Hwan Jeon
IPC分类号： H04L27/28
CPC分类号： H04L25/0206
摘要： An apparatus and a method are provided for detecting N number of TX signals in a MIMO wireless communication system. The apparatus includes an RF processor, a channel estimator, and a signal detector. The RF processor converts signals, received through multiple antennas, into baseband signals. The channel estimator estimates channel information of the respective antennas by using the received signals. The signal detector arranges the baseband signals of the respective antennas on the basis of the channel information, calculates a threshold value of each stage, and selects symbols with a cumulative metric smaller than or equal to the threshold value as candidates at each stage, to detect a TX signal vector with N number of symbols.
摘要翻译：提供了一种用于在MIMO无线通信系统中检测N个TX信号的装置和方法。该装置包括RF处理器，信道估计器和信号检测器。 RF处理器将通过多个天线接收的信号转换为基带信号。信道估计器通过使用所接收的信号来估计各个天线的信道信息。信号检测器基于信道信息布置各个天线的基带信号，计算每一级的阈值，并且选择具有小于或等于阈值的累积度量的符号作为每个级的候选，以检测具有N个符号的TX信号向量。

7. 发明授权

US07995677B2 Apparatus and method for detecting signal by maximum likelihood 有权
标题翻译：用最大似然检测信号的装置和方法
公开(公告)号：US07995677B2
公开(公告)日：2011-08-09
申请号：US12157627
申请日：2008-06-12
申请人： Jong-Ho Lee , Sang-Boh Yun , Young-Hoon Kwon , Sung-Soo Hwang , Sung-Yoon Jung , Soong-Yoon Choi , Hyun-Cheol Park , Hyoun-Kuk Kim
发明人： Jong-Ho Lee , Sang-Boh Yun , Young-Hoon Kwon , Sung-Soo Hwang , Sung-Yoon Jung , Soong-Yoon Choi , Hyun-Cheol Park , Hyoun-Kuk Kim
IPC分类号： H03K9/00
CPC分类号： H04L25/03012 , H04L1/0631 , H04L1/0668 , H04L25/0204 , H04L25/0242 , H04L25/0246 , H04L25/067
摘要： An apparatus and method for detecting a signal in a receiver by maximum likelihood (ML) are provided, in which symbols are detected according to the number of transmit antennas of a transmitter and a modulation scheme, channels are estimated, an equivalent channel matrix corresponding to the estimated channels is determined, a permuted equivalent channel matrix is determined by multiplying the equivalent channel matrix by a predetermined permutation matrix, the permuted equivalent channel matrix is QR decomposed, a hard decision is performed on predetermined symbols among the detected symbols using a received signal resulting from the QR decomposition, and the log likelihood ratios (LLRs) of the hard-decided symbols are determined.
摘要翻译：提供一种用于通过最大似然（ML）检测接收机中的信号的装置和方法，其中根据发射机的发射天线的数量和调制方案检测符号，估计信道，对应于确定估计的信道，通过将等效信道矩阵乘以预定的置换矩阵来确定置换的等效信道矩阵，将经排列的等效信道矩阵QR分解，使用接收信号对检测符号中的预定符号执行硬判决由QR分解产生，并确定硬判决符号的对数似然比（LLR）。

8. 发明申请

US20080089446A1 APPARATUS AND METHOD FOR DETECTING A SIGNAL IN A COMMUNICATION SYSTEM USING MULTIPLE ANTENNAS 有权
标题翻译：使用多个天线在通信系统中检测信号的装置和方法
公开(公告)号：US20080089446A1
公开(公告)日：2008-04-17
申请号：US11871598
申请日：2007-10-12
申请人： Joo-Hyun LEE , Sang-Boh YUN , Young-Hoon KWON , Sung-Soo HWANG , Jong-In KIM , Hyun-Cheol PARK , Hyoun-Kuk KIM , Ki-Hwan JEON
发明人： Joo-Hyun LEE , Sang-Boh YUN , Young-Hoon KWON , Sung-Soo HWANG , Jong-In KIM , Hyun-Cheol PARK , Hyoun-Kuk KIM , Ki-Hwan JEON
IPC分类号： H04B1/16
CPC分类号： H04L1/0045 , H04L1/0656
摘要： A method and apparatus for detecting a signal in a communication system using at least two transmit antennas are provided. The signal detection method and apparatus includes selecting a symbol corresponding to a lowest branch metric from among symbols, the number of which corresponds to a modulation scheme, determining a candidate symbol by extending a process of selecting a symbol corresponding to a lowest branch metric from among the selected symbols, to a number which is less by one than the number of the transmit antennas, setting an accumulated branch metric of the candidate symbol as a threshold, removing a symbol having an accumulated branch metric higher than the threshold, and selecting, as a last received symbol, a symbol corresponding to a path having the lowest accumulated branch metric among paths selected without being removed until a last stage.
摘要翻译：提供了一种使用至少两个发射天线来检测通信系统中的信号的方法和装置。信号检测方法和装置包括从符号中选择与最低分支度量相对应的符号，其数量对应于调制方案，通过扩展选择对应于最低分支度量的符号的处理来确定候选符号，将所选择的符号设置为比发送天线的数量小一个的数字，将候选符号的累积分支度量设置为阈值，去除具有高于阈值的累积分支度量的符号，并且选择为最后接收的符号，对应于在所选择的路径中具有最低累积分支度量的路径的符号，而不被去除直到最后阶段。

9. 发明申请

US20070281636A1 APPARATUS AND METHOD FOR TRANSMITTING DATA IN MULTI-INPUT MULTI-OUTPUT SYSTEM 失效
标题翻译：用于在多输入多输出系统中传输数据的装置和方法
公开(公告)号：US20070281636A1
公开(公告)日：2007-12-06
申请号：US11739175
申请日：2007-04-24
申请人： Tae Joon KIM , Ik Soo EO , Hyoun Kuk KIM , Hyun Chul PARK
发明人： Tae Joon KIM , Ik Soo EO , Hyoun Kuk KIM , Hyun Chul PARK
IPC分类号： H04B1/00
CPC分类号： H04W52/42
摘要： Provided is a transmitter for a multi-input multi-output system including: a memory for storing a modulation system and power allocation coefficient for each antenna; a modulating unit for modulating data to be transmitted using the modulation system for each antenna stored in the memory when the data to be transmitted is input; and a power adjusting unit for adjusting the power according to the power allocation coefficient for each antenna stored in the memory to transmit the data to be transmitted, modulated at the modulating unit, via a corresponding antenna. A higher performance gain can be provided compared to a conventional open loop V-BLAST system by using a different modulation system and power for each antenna of a transmitter.
摘要翻译：提供一种用于多输入多输出系统的发射机，包括：存储器，用于存储每个天线的调制系统和功率分配系数; 调制单元，用于当输入要发送的数据时，使用存储在存储器中的每个天线的调制系统调制要发送的数据; 以及功率调整单元，用于根据存储在存储器中的每个天线的功率分配系数来调整功率，以经由相应的天线发送在调制单元调制的要发送的数据。与传统的开环V-BLAST系统相比，通过使用不同的调制系统和发射机的每个天线的功率，可以提供更高的性能增益。

10. 发明申请

US20070263569A1 Detection Complexity Reducing Apparatus and Method in Multiple Input Multiple Output (MIMO) Antenna System 失效
标题翻译：多输入多输出（MIMO）天线系统中的检测复杂度降低装置及方法
公开(公告)号：US20070263569A1
公开(公告)日：2007-11-15
申请号：US11746459
申请日：2007-05-09
申请人： Soong-Yoon CHOI , Kyung-Joo Suh , Young-Hoon Kwon , Sung-Soo Hwang , Jong-In Kim , Yong-Seok Kim , Hyun-Cheol Park , Hyoun-Kuk Kim
发明人： Soong-Yoon CHOI , Kyung-Joo Suh , Young-Hoon Kwon , Sung-Soo Hwang , Jong-In Kim , Yong-Seok Kim , Hyun-Cheol Park , Hyoun-Kuk Kim
IPC分类号： H04Q7/00
CPC分类号： H04B7/0851 , H04L1/0656 , H04L5/0046 , H04L5/0053 , H04L5/1453
摘要： An apparatus and method for lowering a tree searching complexity in a Spatial Multiplexing (SM) Multiple Input Multiple Output (MIMO) antenna system are provided. A transmitting apparatus includes a generator for generating a plurality of transmit streams by spatial-multiplexing a transmit data, a determiner for determining modulation schemes to be applied to the plurality of the transmit streams respectively and a modulator for modulating the plurality of the transmit streams using at least two modulation schemes under control of the determiner. The receiver detects the signals by allocating the modulation scheme of the lowest order to the upper tree level.
摘要翻译：提供了一种用于降低空间复用（MIMO）多输入多输出（MIMO）天线系统中的树搜索复杂度的装置和方法。发送装置包括：发生器，用于通过空间复用发送数据来产生多个发送流;确定器，用于确定分别应用于多个发送流的调制方案;以及调制器，用于使用在确定器的控制下的至少两个调制方案。接收机通过将最低阶的调制方案分配给上层树来检测信号。

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