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公开(公告)号：US20110044158A1
公开(公告)日：2011-02-24
申请号：US12543671
申请日：2009-08-19
申请人： Zhifeng Tao , Philip V. Orlik , Jun Ma , Ye Li , Jinyun Zhang
发明人： Zhifeng Tao , Philip V. Orlik , Jun Ma , Ye Li , Jinyun Zhang
CPC分类号： H04B7/15592 , H04B7/15564 , H04L27/2601
摘要： Cross-talk is canceled in a cooperative wireless relay network that includes a base station (BS), a relay station (RS), and a mobile station (MS). A coupling channel between a transmit antenna and a receive antenna colocated at the RS is estimated. Cross-talk interference determination is based on a previous transmitted signal by the transmit antenna, and the coupling channel. The cross-talk interference is subtracted from a currently received signal by the receive antenna to obtain a residual signal. The residual signal is then transmitted as a next transmitted signal by the transmit antenna.
摘要翻译： 在包括基站（BS），中继站（RS）和移动站（MS）的协作无线中继网络中，串扰被取消。 估计发射天线与在RS共同定位的接收天线之间的耦合信道。 串扰干扰确定基于发射天线的先前发射信号和耦合信道。 由接收天线从当前接收到的信号中减去串扰干扰，以获得残留信号。 然后由发射天线作为下一个发射信号发送残余信号。
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公开(公告)号：US08014263B2
公开(公告)日：2011-09-06
申请号：US12543671
申请日：2009-08-19
申请人： Zhifeng Tao , Philip V. Orlik , Jun Ma , Ye Li , Jinyun Zhang
发明人： Zhifeng Tao , Philip V. Orlik , Jun Ma , Ye Li , Jinyun Zhang
CPC分类号： H04B7/15592 , H04B7/15564 , H04L27/2601
摘要： Cross-talk is canceled in a cooperative wireless relay network that includes a base station (BS), a relay station (RS), and a mobile station (MS). A coupling channel between a transmit antenna and a receive antenna colocated at the RS is estimated. Cross-talk interference determination is based on a previous transmitted signal by the transmit antenna, and the coupling channel. The cross-talk interference is subtracted from a currently received signal by the receive antenna to obtain a residual signal. The residual signal is then transmitted as a next transmitted signal by the transmit antenna.
摘要翻译： 在包括基站（BS），中继站（RS）和移动站（MS）的协作无线中继网络中，串扰被取消。 估计发射天线与在RS共同定位的接收天线之间的耦合信道。 串扰干扰确定基于发射天线的先前发射信号和耦合信道。 由接收天线从当前接收到的信号中减去串扰干扰，以获得残留信号。 然后由发射天线作为下一个发射信号发送残余信号。
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3.发明申请Hot-Spot Wireless Access Exploiting Shadowing Diversity of Distributed Antennas 失效热点无线接入利用分布式天线的阴影多样性公开(公告)号：US20090247067A1
公开(公告)日：2009-10-01
申请号：US12058954
申请日：2008-03-31
申请人： Ye Li , Jinyun Zhang
发明人： Ye Li , Jinyun Zhang
IPC分类号： H04B7/14
CPC分类号： H04W52/46
摘要： The embodiments of the invention describe method and system for maximizing capacity of a distributed antenna system. A relaying antenna is selected to maximize a signal-to-leakage ratio (SLR) ratio of the distributed antenna system. Further, the capacity of the system is improved by allocating a signal power based on a pseudo-capacity criterion such that an average pseudo capacity of the distributed antenna system is maximized.
摘要翻译： 本发明的实施例描述了用于最大化分布式天线系统的容量的方法和系统。 选择中继天线以最大化分布式天线系统的信噪比（SLR）。 此外，通过基于伪容量标准分配信号功率来提高系统的容量，使得分布式天线系统的平均伪容量最大化。
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4.发明授权Hot-spot wireless access exploiting shadowing diversity of distributed antennas 失效热点无线接入利用分布式天线的阴影分集公开(公告)号：US08428653B2
公开(公告)日：2013-04-23
申请号：US12058954
申请日：2008-03-31
申请人： Ye Li , Jinyun Zhang
发明人： Ye Li , Jinyun Zhang
CPC分类号： H04W52/46
摘要： The embodiments of the invention describe method and system for maximizing capacity of a distributed antenna system. A relaying antenna is selected to maximize a signal-to-leakage ratio (SLR) ratio of the distributed antenna system. Further, the capacity of the system is improved by allocating a signal power based on a pseudo-capacity criterion such that an average pseudo capacity of the distributed antenna system is maximized.
摘要翻译： 本发明的实施例描述了用于最大化分布式天线系统的容量的方法和系统。 选择中继天线以最大化分布式天线系统的信噪比（SLR）。 此外，通过基于伪容量标准分配信号功率来提高系统的容量，使得分布式天线系统的平均伪容量最大化。
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5.发明申请公开(公告)号：US20050268202A1
公开(公告)日：2005-12-01
申请号：US10857042
申请日：2004-05-28
申请人： Andreas Molisch , Daqing Gu , Jinyun Zhang , Jianxuan Du , Ye Li
发明人： Andreas Molisch , Daqing Gu , Jinyun Zhang , Jianxuan Du , Ye Li
CPC分类号： H04L1/005 , H04L1/0057 , H04L1/0618
摘要： A method codes multiple data streams in multiple-input, multiple-output communications systems. In a transmitter, an input bitstream is encoded as codewords b in multiple layers. Each layer is modulated. A quasi-block diagonal, low-density parity-check code is applied to each layer, the quasi-block diagonal, parity-check code being a matrix H, the matrix H including one row of blocks for each subcode, and one row of blocks for each layer such that Hb=0 for any valid codeword. The layers are then forwarded to transmit antennas as a transmitted signal x.
摘要翻译： 一种方法在多输入多输出通信系统中对多个数据流进行编码。 在发射机中，输入比特流被编码为多层的码字b。 每层调制。 准块对角线，低密度奇偶校验码被应用于每个层，准块对角线，奇偶校验码是矩阵H，矩阵H包括每个子码的一行块，以及一行 每个层的块，使得对于任何有效的码字，Hb = 0。 然后将层转发到发射天线作为发射信号x。
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6.发明授权公开(公告)号：US07359470B2
公开(公告)日：2008-04-15
申请号：US10939284
申请日：2004-09-10
申请人： Andreas F. Molisch , Jianxuan Du , Ye Li , Daqing Gu , Jinyun Zhang
发明人： Andreas F. Molisch , Jianxuan Du , Ye Li , Daqing Gu , Jinyun Zhang
IPC分类号： H04L7/02
CPC分类号： H04L1/0687
摘要： A method minimizes a rate for feeding back channel state information from a receiver to a transmitter in a multi-input, multi-output communications systems. A temporal autocorrelation function of the channel between the transmitter and the receiver is determined. A spatial covariance information is estimated of the channel. Then, the minimum rate for feeding back channel state information from the receiver to the transmitter is based on actual channel state information and the estimated spatial covariance information and the temporal autocorrelation function.
摘要翻译： 一种方法使在多输入多输出通信系统中将信道状态信息从接收机反馈到发射机的速率最小化。 确定发射机和接收机之间的信道的时间自相关函数。 估计通道的空间协方差信息。 然后，从接收机向发射机反馈信道状态信息的最小速率基于实际信道状态信息和估计的空间协方差信息和时间自相关函数。
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公开(公告)号：US07355959B2
公开(公告)日：2008-04-08
申请号：US10856708
申请日：2004-05-28
申请人： Andreas F. Molisch , Ye Li , Jinyun Zhang
发明人： Andreas F. Molisch , Ye Li , Jinyun Zhang
IPC分类号： H04J11/00
CPC分类号： H04B1/719 , H04L25/022 , H04L25/0224 , H04L27/261
摘要： A method suppresses interference in a time-frequency hopped, ultra wide bandwidth system. Signals corresponding to a transmitted symbol are received. The received signals are frequency demodulated, and a coefficient vector w that minimizes a cost function C ( w n ) = 1 ∑ k λ n - k ∑ k λ n - k w n H x k - c k 2 , is estimated, where λ is a weighting factor between 0, x is a vector representing the received signals, H is a frequency response of a channel used to transmit the symbol, and c is a known training symbol. A coefficient vector, ŵn={circumflex over (R)}n−1{circumflex over (d)}n, is determined, where a correlation matrix for the received signals is R ^ n = 1 ∑ k λ n - k ∑ k λ n - k x k x k H , and an estimate of a crosscorrelation is d ^ n = 1 ∑ k λ n - k ∑ k λ n - k x k c k * . The received signals are then combined according to c ^ n = 1 C ( w ^ n ) w ^ n H x n = 1 1 - w ^ n H d ^ n w ^ n H x n .
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8.发明授权Estimating channel impulse response and equalizer coefficients in UWB communication systems 有权估计UWB通信系统中的信道脉冲响应和均衡器系数公开(公告)号：US07356100B2
公开(公告)日：2008-04-08
申请号：US10616875
申请日：2003-07-10
申请人： Andreas Molisch , Ye Li , Jinyun Zhang
发明人： Andreas Molisch , Ye Li , Jinyun Zhang
CPC分类号： H04B1/71637 , H04B1/709 , H04B1/719 , H04L1/203 , H04L25/0212 , H04L25/0226 , H04L25/03012 , H04L2025/03484
摘要： A method estimates a channel impulse response in an ultra wide bandwidth (UWB) system. Multiple training sequences modulated at a chip rate are received. Each training sequence is sampled by parallel with multiple correlators at sampling rate substantially slower than the chip rate to obtain a samples over a time interval of the impulse response at a resolution substantially equal to the chip rate, and then estimating the channel impulse response from these samples.
摘要翻译： 一种方法估计超宽带（UWB）系统中的信道脉冲响应。 接收以码片速率调制的多个训练序列。 每个训练序列以与码片速率相比更慢的采样速率与多个相关器并联采样，以在基本上等于码片速率的分辨率下在脉冲响应的时间间隔上获得采样，然后从这些估计信道脉冲响应 样品。
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9.发明申请公开(公告)号：US20060056533A1
公开(公告)日：2006-03-16
申请号：US10939284
申请日：2004-09-10
申请人： Andreas Molisch , Jianxuan Du , Ye Li , Daqing Du , Jinyun Zhang
发明人： Andreas Molisch , Jianxuan Du , Ye Li , Daqing Du , Jinyun Zhang
IPC分类号： H04L1/02
CPC分类号： H04L1/0687
摘要： A method minimizes a rate for feeding back channel state information from a receiver to a transmitter in a multi-input, multi-output communications systems. A temporal autocorrelation function of the channel between the transmitter and the receiver is determined. A spatial covariance information is estimated of the channel. Then, the minimum rate for feeding back channel state information from the receiver to the transmitter is based on actual channel state information and the estimated spatial covariance information and the temporal autocorrelation function.
摘要翻译： 一种方法使在多输入多输出通信系统中将信道状态信息从接收机反馈到发射机的速率最小化。 确定发射机和接收机之间的信道的时间自相关函数。 估计通道的空间协方差信息。 然后，从接收机向发射机反馈信道状态信息的最小速率基于实际信道状态信息和估计的空间协方差信息和时间自相关函数。
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公开(公告)号：US20050265218A1
公开(公告)日：2005-12-01
申请号：US10856708
申请日：2004-05-28
申请人： Andreas Molisch , Ye Li , Jinyun Zhang
发明人： Andreas Molisch , Ye Li , Jinyun Zhang
CPC分类号： H04B1/719 , H04L25/022 , H04L25/0224 , H04L27/261
摘要： A method suppresses interference in a time-frequency hopped, ultra wide bandwidth system. Signals corresponding to a transmitted symbol are received. The received signals are frequency demodulated, and a coefficient vector w that minimizes a cost function C ( w n ) = 1 ∑ k λ n - k ∑ k λ n - k w n H x k - c k 2 , is estimated, where λ is a weighting factor between 0, x is a vector representing the received signals, H is a frequency response of a channel used to transmit the symbol, and c is a known training symbol. A coefficient vector, ŵn={circumflex over (R)}n−1{circumflex over (d)}n, is determined, where a correlation matrix for the received signals is R ^ n = 1 ∑ k λ n - k ∑ k λ n - k x k x k H , and an estimate of a crosscorrelation is d ^ n = 1 ∑ k λ n - k ∑ k λ n - k x k c k * . The received signals are then combined according to c ^ n = 1 C ( w ^ n ) w ^ n H x n = 1 1 - w ^ n H d ^ n w ^ n H x n .
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