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1. 发明申请

US20120307924A1 MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) TRANSMITTED SIGNAL VECTOR ESTIMATION EMPLOYING MONTE CARLO SAMPLING TECHNIQUES 失效
标题翻译：使用MONTE CARLO采样技术的多输入多输出（MIMO）传输信号矢量估计
公开(公告)号：US20120307924A1
公开(公告)日：2012-12-06
申请号：US13472519
申请日：2012-05-16
申请人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Tanumay Datta , Ashok Kumar. N
发明人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Tanumay Datta , Ashok Kumar. N
IPC分类号： H04L27/28
CPC分类号： H04B7/0413 , H04L25/03203 , H04L25/03891
摘要： A method of determining a transmitted vector (x) in a MIMO receiver includes the steps of receiving a received vector (y) representative of the transmitted vector (x), generating a first random number and forming, in a first iteration, a first symbol of a first candidate vector, the candidate vector representing a potential solution vector. The step of forming is based on a first approach if the first random number is greater than a first predetermined value (q), but is based on a second approach if the random number is less than or equal to the first predetermined value (q). The first approach randomly selects the first symbol from a uniform distribution of symbols in the transmission alphabet. The second approach selects the first symbol based on Gibbs sampling. The method represents a randomized Markov Chain Monte Carlo (RMCMC) sampling technique.
摘要翻译：一种在MIMO接收机中确定发射矢量（x）的方法包括以下步骤：接收表示所发射矢量（x）的接收矢量（y），产生第一随机数，并在第一迭代中形成第一符号第一候选向量，候选向量表示潜在的解向量。如果第一随机数大于第一预定值（q），则形成步骤基于第一方法，但是如果随机数小于或等于第一预定值（q），则基于第二方法，。第一种方法是从发送字母表中的符号的均匀分布中随机选择第一个符号。第二种方法选择基于吉布斯抽样的第一个符号。该方法代表随机的马尔可夫链蒙特卡罗（RMCMC）采样技术。

2. 发明授权

US08320432B1 Device and method for precoding vectors in a communication system 有权
标题翻译：通信系统中预编码矢量的装置和方法
公开(公告)号：US08320432B1
公开(公告)日：2012-11-27
申请号：US12430635
申请日：2009-04-27
申请人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Saif Khan Mohammed
发明人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Saif Khan Mohammed
IPC分类号： H04B1/38
CPC分类号： H04B7/0452 , H04B7/0417 , H04B7/0626 , Y02D70/00 , Y02D70/142 , Y02D70/146 , Y02D70/444
摘要： A device and method for precoding vectors in a communication system is provided. A transmitter may precode a data vector using information regarding a communication channel prior to transmitting the data vector. The transmitter may precode the data vector in a manner that reduces an energy value of a resulting transmit data vector so as to minimize interference in a received signal at a receiver. The transmitter may perturb entries of the data vector one-by-one in an iterative fashion until a minimum in an energy value of the transmit data vector is obtained.
摘要翻译：提供了一种用于在通信系统中预编码矢量的装置和方法。发送器可以在发送数据向量之前使用关于通信信道的信息对数据向量进行预编码。发射机可以以降低所得到的发送数据向量的能量值的方式来对数据向量进行预编码，以便最小化在接收机处的接收信号中的干扰。发射机可以以迭代方式一个接一个地扰乱数据向量的条目，直到获得发送数据向量的能量值中的最小值。

3. 发明申请

US20110069746A1 Method to Detect Data Transmitted by Multiple Antennas 失效
标题翻译：检测多个天线传输的数据的方法
公开(公告)号：US20110069746A1
公开(公告)日：2011-03-24
申请号：US12672273
申请日：2009-02-25
申请人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Saif Khan Mohammed
发明人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Saif Khan Mohammed
IPC分类号： H04B3/46 , H04K1/10
CPC分类号： H04B7/0854 , H04B7/0669 , H04B7/0891 , H04L1/0643
摘要： The present invention relates to a system and a multistage signal detection method to jointly detect the data symbols transmitted from multiple transmit antennas in a communication terminal and received using multiple receive antennas in another communication terminal.
摘要翻译：本发明涉及一种系统和多级信号检测方法，用于共同检测在通信终端中从多个发射天线发射并在另一通信终端中使用多个接收天线接收的数据符号。

4. 发明申请

US20090041145A1 METHOD TO DETECT DATA TRANSMITTED FROM MULTIPLE ANTENNAS AND SYSTEM THEREOF 失效
标题翻译：检测从多个天线及其系统传输的数据的方法
公开(公告)号：US20090041145A1
公开(公告)日：2009-02-12
申请号：US11842963
申请日：2007-08-22
申请人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Kalepalli Vishnu Vardhan , Saif Khan Mohammed
发明人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Kalepalli Vishnu Vardhan , Saif Khan Mohammed
IPC分类号： H04L27/28 , H03M13/15 , H04B11/00 , H04L23/02
CPC分类号： H04L1/0631 , H04L1/0643 , H04L1/0656 , H04L2025/03414 , H04L2025/03426
摘要： A method to detect data transmitted from multiple antennas, said method comprising steps of: selecting a starting data block and calling it as previous data block; defining a set of indices of bits to be checked for possible flip in the previous data block as a check candidate set; applying update rule to obtain updated data block using the previous data block and the check candidate set, wherein the update is made in such a manner that change in likelihood is positive; checking if the updated data block and several consecutive previous data blocks are the same; if yes, declare the updated data block as the detected data block; if no, make updated data block as previous data block and repeat updation of data block. FIG. 14
摘要翻译：一种检测从多个天线发送的数据的方法，所述方法包括以下步骤：选择起始数据块并将其称为先前的数据块; 定义一组待检查的位的索引索引，作为检查候选集合在先前数据块中的可能翻转; 应用更新规则以使用所述先前数据块和所述检查候选集获得更新的数据块，其中所述更新以可能性变化为正的方式进行; 检查更新的数据块和几个连续的先前数据块是否相同; 如果是，则将更新的数据块声明为检测到的数据块; 如果没有，则将更新的数据块作为先前的数据块并重新更新数据块。 14

5. 发明申请

US20140133591A1 MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) TRANSMITTED SIGNAL VECTOR ESTIMATION EMPLOYING MONTE CARLO SAMPLING TECHNIQUES 审中-公开
标题翻译：使用MONTE CARLO采样技术的多输入多输出（MIMO）传输信号矢量估计
公开(公告)号：US20140133591A1
公开(公告)日：2014-05-15
申请号：US14159461
申请日：2014-01-21
申请人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Tanumay Datta , Ashok Kumar. N
发明人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Tanumay Datta , Ashok Kumar. N
IPC分类号： H04B7/04
CPC分类号： H04B7/0413 , H04L25/03203 , H04L25/03891
摘要： A method of determining a transmitted vector (x) in a MIMO receiver includes the steps of receiving a received vector (y) representative of the transmitted vector (x), generating a first random number and forming, in a first iteration, a first symbol of a first candidate vector, the candidate vector representing a potential solution vector. The step of forming is based on a first approach if the first random number is greater than a first predetermined value (q), but is based on a second approach if the random number is less than or equal to the first predetermined value (q). The first approach randomly selects the first symbol from a uniform distribution of symbols in the transmission alphabet. The second approach selects the first symbol based on Gibbs sampling. The method represents a randomized Markov Chain Monte Carlo (RMCMC) sampling technique.
摘要翻译：一种在MIMO接收机中确定发射矢量（x）的方法包括以下步骤：接收表示所发射矢量（x）的接收矢量（y），产生第一随机数，并在第一迭代中形成第一符号第一候选向量，候选向量表示潜在的解向量。如果第一随机数大于第一预定值（q），则形成步骤基于第一方法，但是如果随机数小于或等于第一预定值（q），则基于第二方法，。第一种方法是从发送字母表中的符号的均匀分布中随机选择第一个符号。第二种方法选择基于吉布斯抽样的第一个符号。该方法代表随机的马尔可夫链蒙特卡罗（RMCMC）采样技术。

6. 发明授权

US08503544B2 Techniques for decoding transmitted signals using reactive taboo searches (RTS) 有权
标题翻译：使用反应式禁忌搜索（RTS）对发送信号进行解码的技术
公开(公告)号：US08503544B2
公开(公告)日：2013-08-06
申请号：US12771730
申请日：2010-04-30
申请人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Srinidhi Nagaraja , Saif Khan Mohammed
发明人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Srinidhi Nagaraja , Saif Khan Mohammed
IPC分类号： H04L27/00
CPC分类号： H04B7/0413 , H04L1/0631 , H04L25/0204 , H04L25/03178 , H04L25/03331
摘要： Techniques for enabling an estimate of a transmitted signal vector, given a received signal vector and a channel matrix to be computed, are provided. An initial solution signal vector for the estimate is calculated, and based on the initial estimate, a pool of possible solutions is generated. Methods described herein may be iterative in nature, and may cycle through possible estimates of the transmitted signal vector so as to continually improve the estimates and the pool of possible estimates. The methods may terminate once stopping criteria are reached. In some example methods, solutions may be marked at taboo and a taboo period can be established that indicates a number of subsequent iterations for which the current solution signal vector cannot be considered.
摘要翻译：提供给定接收信号向量和要计算的信道矩阵的用于使发送信号向量的估计的技术。计算用于估计的初始解信号向量，并且基于初始估计，生成可能解的池。本文描述的方法本质上可以是迭代的，并且可以循环通过传输的信号向量的可能估计，以便不断改进估计和可能估计的汇总。一旦达到停止标准，方法可能会终止。在一些示例性方法中，可以在禁忌中标记解，并且可以建立禁忌期，其指示不能考虑当前解信号向量的多个后续迭代。

7. 发明授权

US08111779B2 Data transmission in wireless communication system 有权
标题翻译：无线通信系统中的数据传输
公开(公告)号：US08111779B2
公开(公告)日：2012-02-07
申请号：US12420984
申请日：2009-04-09
申请人： Balaji Sundar Rajan , Pavan Koteshwar Srinath
发明人： Balaji Sundar Rajan , Pavan Koteshwar Srinath
IPC分类号： H04L27/00
CPC分类号： H04L27/3427 , H04L1/0071 , H04L1/0625 , H04L1/0631 , H04L1/0637
摘要： Embodiments of the disclosure set forth methods for transmitting data in a wireless communication system. Some example methods include converting a data stream to a symbol set and selecting a first plurality of symbols from the symbol set. The first plurality of symbols includes at least a first symbol, a second symbol, a third symbol, a fourth symbol, a fifth symbol, a sixth symbol, a seventh symbol, and a eighth symbol. The methods include generating one or plurality of symbols of a second plurality of symbols based on interleaving two symbols selected from the first plurality of symbols. The methods further include weighting some symbols of the second plurality of symbols and generating a matrix based on symbols selected from the second plurality of symbols and the weighted symbols. The methods also include encoding the data stream based on the matrix.
摘要翻译：本公开的实施例阐述了在无线通信系统中发送数据的方法。一些示例性方法包括将数据流转换为符号集合并从符号集合中选择第一多个符号。第一多个符号至少包括第一符号，第二符号，第三符号，第四符号，第五符号，第六符号，第七符号和第八符号。所述方法包括基于从所述第一多个符号中选择的两个符号的交织来生成第二多个符号的一个或多个符号。所述方法还包括对第二多个符号中的一些符号进行加权，并且基于从第二多个符号和加权符号中选择的符号生成矩阵。该方法还包括基于矩阵对数据流进行编码。

8. 发明申请

US20100260280A1 DATA TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统中的数据传输
公开(公告)号：US20100260280A1
公开(公告)日：2010-10-14
申请号：US12420984
申请日：2009-04-09
申请人： Balaji Sundar Rajan , Pavan Koteshwar Srinath
发明人： Balaji Sundar Rajan , Pavan Koteshwar Srinath
IPC分类号： H04B7/02 , H04L27/00
CPC分类号： H04L27/3427 , H04L1/0071 , H04L1/0625 , H04L1/0631 , H04L1/0637
摘要： Embodiments of the disclosure set forth methods for transmitting data in a wireless communication system. Some example methods include converting a data stream to a symbol set and selecting a first plurality of symbols from the symbol set. The first plurality of symbols includes at least a first symbol, a second symbol, a third symbol, a fourth symbol, a fifth symbol, a sixth symbol, a seventh symbol, and a eighth symbol. The methods include generating one or plurality of symbols of a second plurality of symbols based on interleaving two symbols selected from the first plurality of symbols. The methods further include weighting some symbols of the second plurality of symbols and generating a matrix based on symbols selected from the second plurality of symbols and the weighted symbols. The methods also include encoding the data stream based on the matrix.
摘要翻译：本公开的实施例阐述了在无线通信系统中发送数据的方法。一些示例性方法包括将数据流转换为符号集合并从符号集合中选择第一多个符号。第一多个符号至少包括第一符号，第二符号，第三符号，第四符号，第五符号，第六符号，第七符号和第八符号。所述方法包括基于从所述第一多个符号中选择的两个符号的交织来生成第二多个符号的一个或多个符号。所述方法还包括对第二多个符号中的一些符号进行加权，并且基于从第二多个符号和加权符号中选择的符号生成矩阵。该方法还包括基于矩阵对数据流进行编码。

9. 发明申请

US20100254300A1 LEVERAGING COHERENT DISTRIBUTED SPACE-TIME CODES FOR NONCOHERENT COMMUNICATION IN RELAY NETWORKS VIA TRAINING 有权
标题翻译：在继电器网络中通过培训利用相关的分布式空间时间码
公开(公告)号：US20100254300A1
公开(公告)日：2010-10-07
申请号：US12419430
申请日：2009-04-07
申请人： Susinder Rajan GULASEKARAN , Balaji SUNDAR RAJAN
发明人： Susinder Rajan GULASEKARAN , Balaji SUNDAR RAJAN
IPC分类号： H04B7/14
CPC分类号： H04B7/155 , H04B7/2606
摘要： In a training cycle, a source node transmits at least one pilot symbol to relay nodes in a training cycle. The relay nodes each amplifies and forwards the pilot symbol to a destination node in an assigned time slot in the training cycle. The destination node sequentially receives multiple versions of the pilot symbol from the relay nodes and estimates channel information based on the multiple versions of the pilot symbol. In data transmission cycles that follow the training cycle, the nodes apply coherent distributed space-time block code (DSTBC) with the estimated channel information to communicate data symbols. The power allocation between training and data cycles may be adjusted to improve the error performance. The nodes may also apply orthogonal frequency division multiplexing (OFDM) based DSTBC when timing errors are not known.
摘要翻译：在训练周期中，源节点在训练周期中向中继节点发送至少一个导频符号。中继节点每个在训练周期中的指定时隙中放大并转发导频符号到目标节点。目的地节点从中继节点顺序地接收导频符号的多个版本，并基于导频符号的多个版本来估计信道信息。在训练周期之后的数据传输周期中，节点将相干分布空时块码（DSTBC）与所估计的信道信息一起应用以传送数据符号。可以调整训练和数据循环之间的功率分配，以改善误差性能。当定时误差未知时，节点还可以应用基于正交频分复用（OFDM）的DSTBC。

10. 发明授权

US08675780B2 Multiple input multiple output (MIMO) transmitted signal vector estimation employing Monte Carlo sampling techniques 失效
标题翻译：采用蒙特卡罗抽样技术的多输入多输出（MIMO）传输信号向量估计
公开(公告)号：US08675780B2
公开(公告)日：2014-03-18
申请号：US13472519
申请日：2012-05-16
申请人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Tanumay Datta , Ashok Kumar. N
发明人： Ananthanarayanan Chockalingam , Balaji Sundar Rajan , Tanumay Datta , Ashok Kumar. N
IPC分类号： H04L27/06 , H04L27/00
CPC分类号： H04B7/0413 , H04L25/03203 , H04L25/03891
摘要： A method of determining a transmitted vector (x) in a MIMO receiver includes the steps of receiving a received vector (y) representative of the transmitted vector (x), generating a first random number and forming, in a first iteration, a first symbol of a first candidate vector, the candidate vector representing a potential solution vector. The step of forming is based on a first approach if the first random number is greater than a first predetermined value (q), but is based on a second approach if the random number is less than or equal to the first predetermined value (q). The first approach randomly selects the first symbol from a uniform distribution of symbols in the transmission alphabet. The second approach selects the first symbol based on Gibbs sampling. The method represents a randomized Markov Chain Monte Carlo (RMCMC) sampling technique.
摘要翻译：一种在MIMO接收机中确定发射矢量（x）的方法包括以下步骤：接收表示所发射矢量（x）的接收矢量（y），产生第一随机数，并在第一迭代中形成第一符号第一候选向量，候选向量表示潜在的解向量。如果第一随机数大于第一预定值（q），则形成步骤基于第一方法，但是如果随机数小于或等于第一预定值（q），则基于第二方法，。第一种方法是从发送字母表中的符号的均匀分布中随机选择第一个符号。第二种方法选择基于吉布斯抽样的第一个符号。该方法代表随机的马尔可夫链蒙特卡罗（RMCMC）采样技术。

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