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41. 发明授权

US07957484B2 Candidate list generation and interference cancellation framework for MIMO detection 有权
标题翻译：用于MIMO检测的候选列表生成和干扰消除框架
公开(公告)号：US07957484B2
公开(公告)日：2011-06-07
申请号：US11930259
申请日：2007-10-31
申请人： Deric W. Waters , Naftali Sommer , Anuj Batra , Srinath Hosur , Doron Burshtein , Rafi Dalla Torre , Oren Peles , Daniel Wajcer
发明人： Deric W. Waters , Naftali Sommer , Anuj Batra , Srinath Hosur , Doron Burshtein , Rafi Dalla Torre , Oren Peles , Daniel Wajcer
IPC分类号： H04L27/00
CPC分类号： H04L25/03006 , H04L2025/03426
摘要： A method and system for performing Multiple-Input Multiple-Output (“MIMO”) detection that reduces complexity by decomposing MIMO detection problem into two less complex problems, Candidate List generation and Interference Cancellation (“CLIC”). Embodiments of the CLIC framework parse an N element channel output into a first set containing S elements and a second set containing N−S elements. A first list of candidate vectors is generated from the first set of elements. A set of interference cancelled elements is generated by using the first list of candidate vectors to cancel interference from the second set of elements. A second list of candidate vectors is generated from the set of interference cancelled elements. A minimum cost is computed for each bit of the candidate vectors and from the costs a log-likelihood ratio is computed.
摘要翻译：一种用于执行多输入多输出（“MIMO”）检测的方法和系统，其通过将MIMO检测问题分解成两个较不复杂的问题，候选列表生成和干扰消除（“CLIC”）来降低复杂度。 CLIC框架的实施例将N元素信道输出解析为包含S个元素的第一集合和包含N-S个元素的第二集合。从第一组元素生成候选向量的第一列表。通过使用候选向量的第一列表来消除来自第二组元素的干扰来生成一组干扰消除元素。从干扰消除元素的集合生成候选向量的第二列表。针对候选向量的每一位计算最小成本，并从成本计算对数似然比。

42. 发明申请

US20100111138A1 Versatile System for Dual Carrier Transformation in Orthogonal Frequency Division Multiplexing 有权
标题翻译：在正交频分复用中双载波变换的多功能系统
公开(公告)号：US20100111138A1
公开(公告)日：2010-05-06
申请号：US12685404
申请日：2010-01-11
申请人： Srinath Hosur , Jaiganesh Balakrishnan , Anuj Batra
发明人： Srinath Hosur , Jaiganesh Balakrishnan , Anuj Batra
IPC分类号： H04B1/69
CPC分类号： H04L27/2602 , H04B1/7176
摘要： The present invention provides a versatile system for selectively spreading carrier data across multiple carrier paths within an Orthogonal Frequency Division Multiplexing (OFDM) system, particularly an ultra-wideband (UWB) system. The present invention provides a data input, which passes data to a randomizer. The data then passes to a convolutional code function, the output of which is punctured by puncturing function. An interleaver function receives the punctured code data, and cooperatively operates with a mapper element to prepare the coded data for pre-transmission conversion by an IFFT. The mapper element comprises a dual carrier modulation function, which associates and transforms two punctured code data elements into a format for transmission on two separate signal tones.
摘要翻译：本发明提供了一种用于在正交频分复用（OFDM）系统，特别是超宽带（UWB）系统内的多个载波路径上选择性地扩展载波数据的通用系统。本发明提供一种将数据传递给随机发生器的数据输入。数据然后传递到卷积码功能，其输出由穿孔功能打孔。交织器功能接收穿孔码数据，并与映射器元件协作操作以通过IFFT准备用于预传输转换的编码数据。映射器元件包括双载波调制功能，其将两个穿孔码数据元素相关联并变换为用于在两个分离的信号音调上传输的格式。

43. 发明授权

US07280622B2 Low-complexity hierarchical decoding for communications systems using multidimensional QAM signaling 有权
标题翻译：使用多维QAM信令的通信系统的低复杂度分层解码
公开(公告)号：US07280622B2
公开(公告)日：2007-10-09
申请号：US10644545
申请日：2003-08-20
申请人： David J. Love , Srinath Hosur , Anuj Batra
发明人： David J. Love , Srinath Hosur , Anuj Batra
IPC分类号： H03D1/00 , H04L27/06
CPC分类号： H04L1/0054 , H04L1/06
摘要： A reduced search space minimum distance decoding method provides average probability of error performance close to optimal MAP decoding. The decoding algorithm provides dramatic complexity reductions compared with MAP decoding. A a sub-optimal decoder receives a collection of signal vectors y1 . . . yk, with k denoting a positive integer and generates an estimated transmitted multidimensional symbol {tilde over (S)}. The estimated transmitted multidimensional symbol {tilde over (S)} is decoded using hierarchical subset decoding a subset is determined therefrom. A reduced search space V is generated and minimum distance decoding is used to decode the received symbol vectors y1 . . . yk in the reduced search space V. one or more of the following: an estimated multidimensional symbol {tilde over (S)}, soft bit information, or hard bit information are cienerated therefrom.
摘要翻译：减少的搜索空间最小距离解码方法提供误差性能的接近于最佳MAP解码的平均概率。与MAP解码相比，解码算法提供了显着的复杂性降低。子优化解码器接收信号矢量y 1的集合。。。其中k表示正整数，并且生成估计的传输多维符号S.使用分层子集解码对估计的传输多维符号S进行解码，从其确定子集。生成减小的搜索空间V，并且使用最小距离解码来对接收的符号向量y 1＆lt; 1＆gt; 1进行解码。。。在缩小搜索空间V中的一个或多个。以下中的一个或多个：由其估计的多维符号S，软比特信息或硬比特信息。

44. 发明授权

US07257170B2 Channel norm-based ordering and whitened decoding for MIMO communication systems 有权
标题翻译：用于MIMO通信系统的基于频道规范的排序和白化解码
公开(公告)号：US07257170B2
公开(公告)日：2007-08-14
申请号：US10644489
申请日：2003-08-20
申请人： David J. Love , Srinath Hosur , Anuj Batra , Tarik Muharemovic , Eko N. Onggosanusi
发明人： David J. Love , Srinath Hosur , Anuj Batra , Tarik Muharemovic , Eko N. Onggosanusi
IPC分类号： H03D1/00 , H04L27/06
CPC分类号： H04L25/03012 , H04L2025/03414 , H04L2025/03605 , H04L2025/03611
摘要： A channel norm-based ordering and whitened decoding technique (lower complexity iterative decoder) for MIMO communication systems performs approximately the same level of performance as an iterative minimum mean squared error decoder. Decoding a signal vector comprises receiving a signal vector yk, multiplying the received signal vector yk by a conjugate transpose of a channel matrix H*. A column vector zk is generated. The entries of the column vector zk are reordered and an estimated channel matrix {tilde over (H)} is generated. The estimated channel matrix {tilde over (H)} decomposed using a Cholesky decomposition and generating a triangular matrix L. Triangular matrix L is solved backwards and a signal vector {tilde over (s)}k estimated. An estimate of the transmitted symbol vector Ŝk is generated.
摘要翻译：用于MIMO通信系统的基于信道规范的排序和白化解码技术（较低复杂度迭代解码器）执行与迭代最小均方误差解码器大致相同的性能水平。对信号矢量进行解码包括：将接收信号矢量y N k乘以通道矩阵H *的共轭转置的信号矢量y k k。生成列向量z 。列向量z 的条目被重新排序，并且生成估计的信道矩阵H. 估计的信道矩阵H使用Cholesky分解分解并产生三角矩阵L.三角矩阵L向后求解并且估计信号矢量s N k。生成发送的符号矢量S N k的估计。

45. 发明授权

US07248651B2 Low complexity high performance decoder and method of decoding for communications systems using multidimensional signaling 有权
标题翻译：低复杂度的高性能解码器和使用多维信令的通信系统的解码方法
公开(公告)号：US07248651B2
公开(公告)日：2007-07-24
申请号：US10644546
申请日：2003-08-20
申请人： David J. Love , Srinath Hosur , Anuj Batra
发明人： David J. Love , Srinath Hosur , Anuj Batra
IPC分类号： H03D1/00 , H04L27/06
CPC分类号： H04L1/06 , H04L25/067 , H04L2025/03414 , H04L2025/03624
摘要： A reduced search space minimum distance decoding algorithm provides average probability of error performance close to that of optimal MAP decoding. The decoding algorithm provides dramatic complexity reductions compared with MAP decoding. A sub-optimal decoder receives signal vectors y1 . . . yk. Soft output bits are generated as is a reduced search space V via a reduced search space table creation unit in response to the soft output bits and an estimated channel H. A signal vector b is generated via a maximum likelihood decoding unit in response to the reduced search space V and the signal vectors y1 . . . yk.
摘要翻译：减少的搜索空间最小距离解码算法提供误差性能的平均概率接近于最佳MAP解码的概率。与MAP解码相比，解码算法提供了显着的复杂性降低。次优解码器接收信号矢量y 1。。。 y＆lt; k＆gt;。响应于软输出比特和估计的信道H，经由减少的搜索空间表创建单元，生成软输出比特。通过减少的搜索空间表生成单元，通过最大似然解码单元响应于减少的搜索空间搜索空间V和信号矢量y 1 <1。。。 y＆lt; k＆gt;。

46. 发明申请

US20050245199A1 Scalable, cooperative, wireless networking for mobile connectivity 审中-公开
标题翻译：可扩展的，协作的，无线网络的移动连接
公开(公告)号：US20050245199A1
公开(公告)日：2005-11-03
申请号：US11062729
申请日：2005-02-22
申请人： Anuj Batra , Nathan Belk , Anand Dabak , Michael DiRenzo , Manish Goel , Jin-Meng Ho , Srinath Hosur , Xiaolin Lu , David Magee , Donald Shaver , Hirohisa Yamaguchi
发明人： Anuj Batra , Nathan Belk , Anand Dabak , Michael DiRenzo , Manish Goel , Jin-Meng Ho , Srinath Hosur , Xiaolin Lu , David Magee , Donald Shaver , Hirohisa Yamaguchi
IPC分类号： H04B1/38
摘要： A wireless transceiver 10 is provided that includes a configurable analog component 14 and a controller portion 18. The configurable analog component 14 is operable to receive an input radio frequency signal and to transmit the output radio frequency signal. The controller portion 18 is operable to promote adjustment of a bandwidth of the configurable analog component 14 from at least a first bandwidth to a second bandwidth.
摘要翻译：提供了一种无线收发机10，其包括可配置的模拟组件14和控制器部分18。可配置模拟组件14可操作以接收输入射频信号并传输输出射频信号。控制器部分18可操作以促进将可配置模拟组件14的带宽从至少第一带宽调整到第二带宽。

47. 发明授权

US06917311B2 Orthogonal preamble encoder, method of encoding orthogonal preambles and multiple-input, multiple-output communication system employing the same 有权
标题翻译：正交前导编码器，正交前导码的编码方法和采用该正交前导码的多输入多输出通信系统
公开(公告)号：US06917311B2
公开(公告)日：2005-07-12
申请号：US10639418
申请日：2003-08-11
申请人： Srinath Hosur , Anuj Batra , Srikanth Gummadi , David P. Magee
发明人： Srinath Hosur , Anuj Batra , Srikanth Gummadi , David P. Magee
IPC分类号： H03M7/00 , H04B7/04 , H04L1/00 , H04L1/06 , H04L25/02 , H04L27/26
CPC分类号： H04L1/0078 , H04B7/04 , H04L1/06 , H04L25/0204 , H04L25/022 , H04L25/0226 , H04L27/2613
摘要： For use with a multiple-input, multiple-output (MIMO) transmitter, an orthogonal preamble encoder, a method of encoding orthogonal preambles and a communication system incorporating the encoder or the method. In one embodiment, the encoder includes: (1) a preamble supplement generator configured to provide a first long sequence preamble supplement to a first transmit antenna of the MIMO transmitter and (2) a preamble supplement coordinator coupled to the preamble supplement generator and configured to provide a second long sequence preamble supplement to a second transmit antenna of the MIMO transmitter, at least a portion of the second long sequence preamble supplement being a negation of the first long sequence preamble supplement.
摘要翻译：用于多输入多输出（MIMO）发射机，正交前导码编码器，对正交前导码进行编码的方法和结合编码器的通信系统或方法。在一个实施例中，所述编码器包括：（1）前导码补充生成器，被配置为向所述MIMO发射机的第一发射天线提供第一长序列前导码补充，以及（2）前缀补充协调器，其耦合到所述前导码补充生成器，向所述MIMO发射机的第二发射天线提供第二长序列前导码补充，所述第二长序列前同步码补码的至少一部分是所述第一长序列前同步码补码的否定。

48. 发明授权

US09179362B2 Systems and methods for networking coding using Reed-Solomon codes 有权
标题翻译：使用Reed-Solomon码进行网络编码的系统和方法
公开(公告)号：US09179362B2
公开(公告)日：2015-11-03
申请号：US13595774
申请日：2012-08-27
申请人： Samantha Rose Summerson , Anuj Batra , Srinath Hosur , Georgios Angelopoulos
发明人： Samantha Rose Summerson , Anuj Batra , Srinath Hosur , Georgios Angelopoulos
IPC分类号： H04W4/00 , H04W28/06 , H04L1/00 , H03M13/15 , H03M13/37
CPC分类号： H04L1/0041 , G06F11/1004 , H03M13/1515 , H03M13/373 , H03M13/3761 , H04L1/0057 , H04W28/065
摘要： A method for network coding includes encoding a plurality of message packets to produce a plurality of encoded packets. Each message packet and each encoded packet includes a plurality of symbols having an index and each symbol of the encoded packets is generated by applying a Reed-Solomon code to the symbols of the message packets having the same index as the symbol of the encoded packets. A length of the encoded packets is the same as a length of the message packets.
摘要翻译：一种用于网络编码的方法包括编码多个消息分组以产生多个编码分组。每个消息分组和每个编码分组包括具有索引的多个符号，并且通过将Reed-Solomon码应用于具有与编码分组的符号相同的索引的消息分组的符号来生成编码分组的每个符号。编码包的长度与消息包的长度相同。

49. 发明授权

US08446934B2 Frequency diversity and phase rotation 有权
标题翻译：频率分集和相位旋转
公开(公告)号：US08446934B2
公开(公告)日：2013-05-21
申请号：US12873114
申请日：2010-08-31
申请人： Timothy M. Schmidl , Anuj Batra , Srinath Hosur
发明人： Timothy M. Schmidl , Anuj Batra , Srinath Hosur
IPC分类号： H04B1/38
CPC分类号： H04L27/2626 , H04B7/12 , H04L1/0071 , H04L1/08 , H04L27/2602 , H04L27/2621
摘要： An integrated circuit includes logic configured to encode one or more first data symbols in one or more first sub-carriers as one or more second data symbols in one or more second sub-carriers of a smart-utility-network communication.
摘要翻译：集成电路包括被配置为将一个或多个第一子载波中的一个或多个第一数据符号编码为智能公用网络通信的一个或多个第二子载波中的一个或多个第二数据符号的逻辑。

50. 发明授权

US08346175B2 Wireless signal detection using a transformed lattice boundary 有权
标题翻译：使用变换的格子边界的无线信号检测
公开(公告)号：US08346175B2
公开(公告)日：2013-01-01
申请号：US12022652
申请日：2008-01-30
申请人： David L. Milliner , Anuj Batra , Srinath Hosur
发明人： David L. Milliner , Anuj Batra , Srinath Hosur
IPC分类号： H04B17/00
CPC分类号： H04L25/03242 , H04L1/206
摘要： In at least some embodiments, a wireless communication system includes a transmitter that transmits a signal over a communication channel. The system also includes a receiver that receives the signal as an output of the communication channel. The receiver establishes a boundary for a transformed lattice and eliminates candidates outside the established boundary.
摘要翻译：在至少一些实施例中，无线通信系统包括通过通信信道发送信号的发射机。该系统还包括接收信号作为通信信道的输出的接收机。接收机为变换的格子建立边界，并消除建立边界以外的候选者。

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