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11. 发明授权

US08041394B2 Methods and systems for transmitting an information signal in a multiple antenna communication system 有权
标题翻译：用于在多天线通信系统中发送信息信号的方法和系统
公开(公告)号：US08041394B2
公开(公告)日：2011-10-18
申请号：US11146511
申请日：2005-06-07
申请人： Geert Arnout Awater , D. J. Richard Van Nee
发明人： Geert Arnout Awater , D. J. Richard Van Nee
IPC分类号： H04M1/00
CPC分类号： H04B7/0615 , H04B7/0854
摘要： Methods and systems are provided for transmitting a plurality of information signals in a multiple antenna communication system. One or more information signals are coded using a plurality of coders to generate the plurality of coded information signals and an Inverse Fast Fourier Transformation is performed on each of the plurality of coded information signals to create a corresponding output signal. Each of the corresponding output signals are transmitted on a different antenna. Each of the plurality of coded information signals can optionally be separated into K signals. On the receiver side, a signal comprising K different frequencies is received on at least N receive antennas and a Fast Fourier Transformation is applied to each of the at least N received versions of the signal comprising K different frequencies to generate N*K low frequency signals. The N*K separate low frequency signals are then combined to recover a transmitted information signal, based on one or more transfer functions from each of a plurality of transmit antennas to each of the N receive antennas.
摘要翻译：提供了用于在多天线通信系统中发送多个信息信号的方法和系统。使用多个编码器对一个或多个信息信号进行编码，以生成多个编码信息信号，并且对多个编码信息信号中的每一个执行反快速傅立叶变换以产生相应的输出信号。每个相应的输出信号在不同的天线上传输。多个编码信息信号中的每一个可以可选地分离成K个信号。在接收机侧，在至少N个接收天线上接收包含K个不同频率的信号，并且将快速傅里叶变换应用于包括K个不同频率的信号的至少N个接收版本中的每一个，以产生N * K个低频信号。然后，组合N * K个分离低频信号，以便基于从多个发射天线中的每一个到N个接收天线中的每一个的一个或多个传输函数来恢复所发送的信息信号。

12. 发明申请

US20090190697A1 DECODING TECHNIQUES FOR MULTI-ANTENNA SYSTEMS 有权
标题翻译：多天线系统的解码技术
公开(公告)号：US20090190697A1
公开(公告)日：2009-07-30
申请号：US12404433
申请日：2009-03-16
申请人： Geert Arnout Awater , D. J. Richard Van Nee
发明人： Geert Arnout Awater , D. J. Richard Van Nee
IPC分类号： H04L27/06
CPC分类号： H04L27/36 , H04L2025/0342 , H04L2025/03426
摘要： In one embodiment, a wireless device for a wireless data communication system including the wireless device and a base station. The base station includes a plurality of first groups and a signal-processing unit. Each first group includes a receiver and at least one antenna connected to the receiver. The signal-processing unit includes memory and a processor adapted to process signals received by the first groups using a Maximum Likelihood Detection (MLD) method. The wireless device includes a plurality of second groups, each second group adapted to transmit a wireless signal to at least one first group via a corresponding communication channel. Each second group further includes a transmitter and at least one antenna connected to the transmitter. The signal-processing unit is adapted to store, in the memory, information corresponding to one or more transfer functions, each transfer function corresponding to transmission of a wireless signal from an antenna of the second groups to an antenna of the first groups. The transmitters and receivers are adapted to operate at essentially the same frequency or frequency band. Two or more of the communication channels are generated simultaneously. Each transmitter is adapted to modulate an information signal on a radio-frequency signal according to a Quadrature Amplitude Modulation (QAM) method to transmit QAM symbols. Each receiver is adapted to demodulate information signals from a received radio-frequency signal according to the QAM method.
摘要翻译：在一个实施例中，一种用于包括无线设备和基站的无线数据通信系统的无线设备。基站包括多个第一组和信号处理单元。每个第一组包括接收器和连接到接收器的至少一个天线。信号处理单元包括存储器和适于使用最大似然检测（MLD）方法处理由第一组接收的信号的处理器。无线设备包括多个第二组，每个第二组适于经由相应的通信信道将无线信号发送到至少一个第一组。每个第二组还包括发射机和连接到发射机的至少一个天线。信号处理单元适于在存储器中存储对应于一个或多个传送函数的信息，对应于无线信号从第二组的天线到第一组的天线的传输的每个传递函数。发射机和接收机适于在基本上相同的频率或频带上操作。同时产生两个或多个通信信道。每个发射机适于根据正交幅度调制（QAM）方法对射频信号上的信息信号进行调制，以传输QAM符号。每个接收机适于根据QAM方法从接收的射频信号中解调信息信号。

13. 发明申请

US20090060078A1 NEAR SOFT-OUTPUT MAXIMUM-LIKELIHOOD DETECTION FOR MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEMS 有权
标题翻译：几乎输入多输出系统的软输出最大似然检测
公开(公告)号：US20090060078A1
公开(公告)日：2009-03-05
申请号：US11849025
申请日：2007-08-31
申请人： Albert van Zelst , Brian Wong , D.J. Richard van Nee , Vincent K. Jones, IV , Geert Arnout Awater
发明人： Albert van Zelst , Brian Wong , D.J. Richard van Nee , Vincent K. Jones, IV , Geert Arnout Awater
IPC分类号： H04L5/12
CPC分类号： H04L25/0204 , H04L1/0048 , H04L1/06 , H04L25/0242 , H04L25/0246 , H04L25/067 , H04L27/2601
摘要： Systems and methodologies are described that provide low-complexity soft-output detection for MIMO communication systems. Looping can be performed over a set of constellation points per spatial stream to obtain distance metrics for each of a series of transmitted streams, for which values for the other transmitted streams can be estimated using a MIMO channel matrix and a sub-optimal MIMO algorithm. Examples of MIMO algorithms that can be utilized include Per-Stream List Detection (PSLD), Lattice-Reduced Detection (LRD), and a Guided-M Algorithm. Performance can be further improved by pre-processing the MIMO channel matrix and/or by utilizing techniques for Enhanced Metric Usage (EMU).
摘要翻译：描述了为MIMO通信系统提供低复杂度软输出检测的系统和方法。可以在每个空间流的一组星座点上执行循环，以获得一系列发射流中的每一个的距离度量，对于其可以使用MIMO信道矩阵和次优MIMO算法来估计其他发送流的值。可以使用的MIMO算法的示例包括每流列表检测（PSLD），格子减少检测（LRD）和引导M算法。通过预处理MIMO信道矩阵和/或通过利用用于增强度量使用（EMU）的技术，可以进一步改善性能。

14. 发明申请

US20100061262A1 JOINT PACKET DETECTION IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统中的联合分组检测
公开(公告)号：US20100061262A1
公开(公告)日：2010-03-11
申请号：US12554438
申请日：2009-09-04
申请人： Geert Arnout Awater , James Gardner , Richard van Nee , Gregory C. Steele
发明人： Geert Arnout Awater , James Gardner , Richard van Nee , Gregory C. Steele
IPC分类号： H04L12/26
CPC分类号： H04B17/318
摘要： A packet detector joint detects 802.11a packets, 802.11b packets and interference that is within a monitored frequency range but is not formatted as 802.11a packets or 802.11b packets. The packet detector can use signals from one or more antennas. Detection of signals is done using differentially detected correlations. In addition to packet detection, the packet detector can identify signal levels, noise levels and locations of narrowband interference. The process of packet detection and identifying other indicators can be done simultaneously and as the signal is being received.
摘要翻译：分组检测器联合检测802.11a分组，802.11b分组和处于受监视频率范围内的干扰，但不被格式化为802.11a分组或802.11b分组。分组检测器可以使用来自一个或多个天线的信号。使用差分检测的相关性来完成信号的检测。除了分组检测之外，分组检测器可以识别信号电平，噪声电平和窄带干扰的位置。数据包检测和识别其他指示符的过程可以同时进行，并且正在接收信号。

15. 发明授权

US07586884B2 Joint packet detection in wireless communication system with one or more receiver 有权
标题翻译：在具有一个或多个接收机的无线通信系统中的联合分组检测
公开(公告)号：US07586884B2
公开(公告)日：2009-09-08
申请号：US10642070
申请日：2003-08-15
申请人： Geert Arnout Awater , James Gardner , Richard van Nee , Gregory C. Steele
发明人： Geert Arnout Awater , James Gardner , Richard van Nee , Gregory C. Steele
IPC分类号： H04W4/00
CPC分类号： H04B17/318
摘要： A packet detector joint detects 802.11a packets, 802.11b packets and interference that is within a monitored frequency range but is not formatted as 802.11a packets or 802.11b packets. The packet detector can use signals from one or more antennas. Detection of signals is done using differentially detected correlations. In addition to packet detection, the packet detector can identify signal levels, noise levels and locations of narrowband interference. The process of packet detection and identifying other indicators can be done simultaneously and as the signal is being received.
摘要翻译：分组检测器联合检测802.11a分组，802.11b分组和处于受监视频率范围内的干扰，但不被格式化为802.11a分组或802.11b分组。分组检测器可以使用来自一个或多个天线的信号。使用差分检测的相关性来完成信号的检测。除了分组检测之外，分组检测器可以识别信号电平，噪声电平和窄带干扰的位置。数据包检测和识别其他指示符的过程可以同时进行，并且正在接收信号。

16. 发明申请

US20100111234A1 SYSTEM FOR SOFT SYMBOL DECODING MIMO LOG-MAP DETECTION 有权
标题翻译：用于软件符号解码MIMO日志映射检测的系统
公开(公告)号：US20100111234A1
公开(公告)日：2010-05-06
申请号：US12629282
申请日：2009-12-02
申请人： Didier Johannes Richard van Nee , Vincent Knowles Jones, IV , Geert Arnout Awater , James Gardner
发明人： Didier Johannes Richard van Nee , Vincent Knowles Jones, IV , Geert Arnout Awater , James Gardner
IPC分类号： H04L27/06
CPC分类号： H04L27/2032 , H04L25/03006 , H04L25/067 , H04L2025/03414 , H04L2025/03426
摘要： A soft symbol decoder for use in a multiple input multiple output (MIMO) and OFDM (orthogonal frequency division multiplexing) system. The decoder generates soft symbol values for a digital signal that represents a number of source bits. The source bits are transmitted as symbols in corresponding to points in a signaling constellation. Soft metrics are determined by searching for all possible multi-dimensional symbols that could have been transmitted. The method includes transmitting a sample of the multi-dimensional symbol using K transmit antennas. The multi-dimensional symbol is represent-able as a complex, K-dimensional vector x. Each vector component of vector x represents a signal transmitted with one of the K transmit antennas. After transmission through a communication channel, a sample corresponding to the transmitted sample is received. The received sample is represented by a complex, N-dimensional vector y, where N is the number of receive antennas in the MIMO system. After the sample is received, a soft metric L(bi) is determined for each bit bi encoded by x according to the equation: L  ( b i ) = σ - 2 · ( min x j  b i = - 1   y - Hx j  2 - min x j  b i = + 1   y - Hx j  2 ) , , and xj represents all possible values for x. In addition, a reduced complexity method is used for providing soft metric values in the MIMO system. This exemplary aspect reduces the complexity of the above computations from 2BK to 2B(K-1), where B is the number of bits transmitted per symbol per antenna.
摘要翻译：一种用于多输入多输出（MIMO）和OFDM（正交频分复用）系统的软符号解码器。解码器产生表示多个源位的数字信号的软符号值。源比特在对应于信令星座中的点被作为符号发送。通过搜索可能已经发送的所有可能的多维符号来确定软度量。该方法包括使用K个发送天线发送多维符号的采样。多维符号可以表示为复杂的K维向量x。矢量x的每个矢量分量表示与K个发射天线中的一个发射的信号。在通过通信信道传输之后，接收对应于发送的样本的样本。接收的样本由复数N维向量y表示，其中N是MIMO系统中的接收天线的数量。在接收到样本之后，根据以下等式为由x编码的每个比特bi确定软度量L（bi）：L（b i）=＆sgr; - 2·（min x jb i = - 1y - Hx j2 - min x jb i = + 1y-Hx j2），xj表示x的所有可能值。另外，降低复杂度的方法用于在MIMO系统中提供软度量值。该示例性方面降低了从2BK到2B（K-1）的上述计算的复杂度，其中B是每个天线每符号发送的比特数。

17. 发明授权

US08483328B2 System for soft symbol decoding MIMO log-map detection 有权
标题翻译：用于软符号解码MIMO系统的对数映射检测
公开(公告)号：US08483328B2
公开(公告)日：2013-07-09
申请号：US12629282
申请日：2009-12-02
申请人： Didier Johannes Richard van Nee , Vincent Knowles Jones, IV , Geert Arnout Awater , James Gardner
发明人： Didier Johannes Richard van Nee , Vincent Knowles Jones, IV , Geert Arnout Awater , James Gardner
IPC分类号： H04L27/06
CPC分类号： H04L27/2032 , H04L25/03006 , H04L25/067 , H04L2025/03414 , H04L2025/03426
摘要： A soft symbol decoder for use in a multiple input multiple output (MIMO) and OFDM (orthogonal frequency division multiplexing) system. The decoder generates soft symbol values for a digital signal that represents a number of source bits. The source bits are transmitted as symbols in corresponding to points in a signaling constellation. Soft metrics are determined by searching for all possible multi-dimensional symbols that could have been transmitted. The method includes transmitting a sample of the multi-dimensional symbol using K transmit antennas. The multi-dimensional symbol is represent-able as a complex, K-dimensional vector x. Each vector component of vector x represents a signal transmitted with one of the K transmit antennas. After transmission through a communication channel, a sample corresponding to the transmitted sample is received. The received sample is represented by a complex, N-dimensional vector y, where N is the number of receive antennas in the MIMO system. After the sample is received, a soft metric L(bi) is determined for each bit bi encoded by x according to the equation: L ⁡ ( b i ) = σ - 2 · ( min x j ❘ b i = - 1 ⁢  y - Hx j  2 - min x j ❘ b i = + 1 ⁢  y - Hx j  2 ) , , and xj represents all possible values for x. In addition, a reduced complexity method is used for providing soft metric values in the MIMO system. This exemplary aspect reduces the complexity of the above computations from 2BK to 2B(K−1), where B is the number of bits transmitted per symbol per antenna.
摘要翻译：一种用于多输入多输出（MIMO）和OFDM（正交频分复用）系统的软符号解码器。解码器产生表示多个源位的数字信号的软符号值。源比特在对应于信令星座中的点被作为符号发送。通过搜索可能已经发送的所有可能的多维符号来确定软度量。该方法包括使用K个发送天线发送多维符号的采样。多维符号可以表示为复杂的K维向量x。矢量x的每个矢量分量表示与K个发射天线中的一个发射的信号。在通过通信信道传输之后，接收对应于发送的样本的样本。接收的样本由复数N维向量y表示，其中N是MIMO系统中的接收天线的数量。在接收到样本之后，根据以下等式为由x编码的每个比特bi确定软度量L（bi）：L⁡（bi）= sigma-2·（min xj | bi =-Iy-Hx j2 - min xj | bi = +1y - Hx j2），xj表示x的所有可能值。另外，降低复杂度的方法用于在MIMO系统中提供软度量值。该示例性方面降低了从2BK到2B（K-1）的上述计算的复杂度，其中B是每个天线每符号发送的比特数。

18. 发明授权

US08023397B2 Joint packet detection in a wireless communication system with one or more receivers 有权
标题翻译：在具有一个或多个接收机的无线通信系统中的联合分组检测
公开(公告)号：US08023397B2
公开(公告)日：2011-09-20
申请号：US12554438
申请日：2009-09-04
申请人： Geert Arnout Awater , James Gardner , Richard Van Nee , Gregory C. Steele
发明人： Geert Arnout Awater , James Gardner , Richard Van Nee , Gregory C. Steele
IPC分类号： H04J11/00
CPC分类号： H04B17/318
摘要： A packet detector joint detects 802.11a packets, 802.11b packets and interference that is within a monitored frequency range but is not formatted as 802.11a packets or 802.11b packets. The packet detector can use signals from one or more antennas. Detection of signals is done using differentially detected correlations. In addition to packet detection, the packet detector can identify signal levels, noise levels and locations of narrowband interference. The process of packet detection and identifying other indicators can be done simultaneously and as the signal is being received.
摘要翻译：分组检测器联合检测802.11a分组，802.11b分组和处于受监视频率范围内的干扰，但不被格式化为802.11a分组或802.11b分组。分组检测器可以使用来自一个或多个天线的信号。使用差分检测的相关性来完成信号的检测。除了分组检测之外，分组检测器可以识别信号电平，噪声电平和窄带干扰的位置。数据包检测和识别其他指示符的过程可以同时进行，并且正在接收信号。

19. 发明授权

US07668267B2 Search efficient MIMO trellis decoder 失效
标题翻译：搜索高效的MIMO网格解码器
公开(公告)号：US07668267B2
公开(公告)日：2010-02-23
申请号：US11942283
申请日：2007-11-19
申请人： James Gardner , Vincent Knowles Jones, IV , Didier Johannes Richard Van Nee , Geert Arnout Awater
发明人： James Gardner , Vincent Knowles Jones, IV , Didier Johannes Richard Van Nee , Geert Arnout Awater
IPC分类号： H04B7/10
CPC分类号： H03M13/256 , H03M13/3905
摘要： A decoder generates distance and label metrics associated with each label of a coset transmitted in a multi-input multi-output communication system having Mt transmit antennas and Mr receive antennas by performing 2(“u+n”)(Mt−1) searches, where n is the number of encoded bits used to identify one of 2u cosets at the transmitting end and u is the number of unencoded bits used to select one of 2u labels at the transmitting end. The decoder forms an intermediate vector quantity associated with one of the transmit antennas to compute the metrics associated with each of the remaining transmit antennas. The decoder then forms a second intermediate vector quantity to compute the metrics associated with the transmit antenna that was used to form the first intermediate variable. The metrics so computed are used by a Viterbi decoder to identify the coset and the most likely transmitted label in that coset.
摘要翻译：解码器通过执行2（“u + n”）（Mt-1）搜索，生成与具有Mt个发送天线和Mr个接收天线的多输入多输出通信系统中发送的陪集的每个标签相关联的距离和标签量度，其中n是用于识别发送端的2u陪集中的一个的编码比特数，u是用于在发送端选择2u个标签之一的未编码比特数。解码器形成与发射天线之一相关联的中间矢量，以计算与每个剩余发射天线相关联的度量。然后，解码器形成第二中间矢量，以计算与用于形成第一中间变量的发射天线相关联的度量。如此计算的度量被维特比解码器用于识别该陪集中的陪集和最可能发送的标签。

20. 发明授权

US07649966B2 System for soft symbol decoding with MIMO log-map detection 有权
标题翻译：用于利用MIMO对数映射检测进行软符号解码的系统
公开(公告)号：US07649966B2
公开(公告)日：2010-01-19
申请号：US11965511
申请日：2007-12-27
申请人： Didier Johannes Richard van Nee , Vincent Knowles Jones, IV , Geert Arnout Awater , James Gardner
发明人： Didier Johannes Richard van Nee , Vincent Knowles Jones, IV , Geert Arnout Awater , James Gardner
IPC分类号： H04L27/06 , H04L1/02
CPC分类号： H04L27/2032 , H04L25/03006 , H04L25/067 , H04L2025/03414 , H04L2025/03426
摘要： A soft symbol decoder for use in a multiple input multiple output (MIMO) and OFDM (orthogonal frequency division multiplexing) system. The decoder generates soft symbol values for a digital signal that represents a number of source bits. The source bits are transmitted as symbols in corresponding to points in a signaling constellation. Soft metrics are determined by searching for all possible multi-dimensional symbols that could have been transmitted. The method includes transmitting a sample of the multi-dimensional symbol using K transmit antennas. The multi-dimensional symbol is represent-able as a complex, K-dimensional vector x. Each vector component of vector x represents a signal transmitted with one of the K transmit antennas. After transmission through a communication channel, a sample corresponding to the transmitted sample is received. The received sample is represented by a complex, N-dimensional vector y, where N is the number of receive antennas in the MIMO system. After the sample is received, a soft metric L(bi) is determined for each bit bi encoded by x according to the equation: L ⁡ ( b i ) = σ - 2 · ( min x j | b i = - 1 ⁢  y - Hx j  2 - min x j | b i = + 1 ⁢  y - Hx j  2 ) , , and ⁢ ⁢ x j represents all possible values for x. In addition, a reduced complexity method is used for providing soft metric values in the MIMO system. This exemplary aspect reduces the complexity of the above computations from 2BK to 2B(K−1), where B is the number of bits transmitted per symbol per antenna.
摘要翻译：一种用于多输入多输出（MIMO）和OFDM（正交频分复用）系统的软符号解码器。解码器产生表示多个源位的数字信号的软符号值。源比特在对应于信令星座中的点被作为符号发送。通过搜索可能已经发送的所有可能的多维符号来确定软度量。该方法包括使用K个发送天线发送多维符号的采样。多维符号可以表示为复杂的K维向量x。矢量x的每个矢量分量表示与K个发射天线中的一个发射的信号。在通过通信信道传输之后，接收对应于发送的样本的样本。接收的样本由复数N维向量y表示，其中N是MIMO系统中的接收天线的数量。在接收到样本之后，根据以下等式为由x编码的每个比特bi确定软度量L（bi）：L⁡（b i）= sigma-2。（min x j | b i = - 1y - Hx j2 - min x j | b i = +1y - Hx j2），，而且，x x代表x的所有可能值。另外，降低复杂度的方法用于在MIMO系统中提供软度量值。该示例性方面降低了从2BK到2B（K-1）的上述计算的复杂度，其中B是每个天线每符号发送的比特数。

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