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1.发明授权Data stream interleaving with non-monotonically arranged data rotations for spatially diverse transmission 有权数据流交织与非单调布置的数据旋转用于空间多样的传输公开(公告)号：US08090045B1
公开(公告)日：2012-01-03
申请号：US12759643
申请日：2010-04-13
IPC分类号： H04B7/02
CPC分类号： H04L5/0023 , H04B1/38 , H04B7/068 , H04L1/0071 , H04L5/0044 , H04L27/2637 , H04W72/04
摘要： Systems and techniques relating to processing multiple data streams transmitted over a wireless channel. In general, according to at least one implementation, a technique includes: obtaining data streams to be transmitted over a wireless channel using spatially diverse transmission; applying data rotations to respective data streams in connection with interleaving the data streams; and preparing the data streams for spatially diverse transmission over the wireless channel; wherein the applying is performed by an apparatus including at least one of electronic circuitry, computer hardware, or firmware; wherein the applying includes using a sequence of first, second, third, and fourth data rotation values with respective first, second, third, and fourth data streams; wherein the first, second, third, and fourth data rotation values oscillate in relative value within the sequence. The data rotation values can be fixed constants. The data rotations can include subcarrier rotations. The data rotations can include column rotations.
摘要翻译： 与通过无线信道传输的处理多个数据流有关的系统和技术。 通常，根据至少一个实施方式，一种技术包括：使用空间多样化的传输获得要通过无线信道发送的数据流; 结合数据流的交织，将数据旋转应用于相应的数据流; 以及准备用于通过无线信道进行空间多样化传输的数据流; 其中所述应用由包括电子电路，计算机硬件或固件中的至少一个的装置执行; 其中所述应用包括使用具有相应的第一，第二，第三和第四数据流的第一，第二，第三和第四数据旋转值的序列; 其中所述第一，第二，第三和第四数据旋转值以所述序列内的相对值振荡。 数据旋转值可以是固定常数。 数据旋转可以包括副载波旋转。 数据旋转可以包括列旋转。
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2.发明授权Data stream interleaving with non-monotonically arranged data rotations for spatially diverse transmission 有权数据流交织与非单调布置的数据旋转用于空间多样的传输公开(公告)号：US08625699B1
公开(公告)日：2014-01-07
申请号：US13338137
申请日：2011-12-27
IPC分类号： H04B7/02
CPC分类号： H04L5/0023 , H04B1/38 , H04B7/068 , H04L1/0071 , H04L5/0044 , H04L27/2637 , H04W72/04
摘要： Systems and techniques relating to processing multiple data streams transmitted over a wireless channel are described. A described technique includes obtaining data streams to be transmitted over a wireless channel using spatially diverse transmission; and applying rotations to the data streams in connection with interleaving the data streams. Applying the rotations can include using rotation values with respective data streams, the rotation values forming a sequence such that the rotation values plotted against stream indices oscillate in relative value within the sequence when a number of the data streams to be transmitted is greater than two. The rotations can include frequency rotations. The interleaving can include performing permutations, the permutations including a first permutation and a second permutation. Applying the rotations can include applying the frequency rotations after the second permutation.
摘要翻译： 描述了通过无线信道传输的处理多个数据流的系统和技术。 所描述的技术包括通过空间多样化的传输获得要通过无线信道发送的数据流; 并且与数据流的交织结合使用旋转到数据流。 应用旋转可以包括使用具有相应数据流的旋转值，旋转值形成一个序列，使得当要发送的数据流的数量大于2时，相对于流索引绘制的旋转值在序列内的相对值中振荡。 旋转可以包括频率旋转。 交织可以包括执行置换，排列包括第一置换和第二置换。 应用旋转可以包括在第二次排列之后施加频率旋转。
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3.发明授权Data stream interleaving with non-monotonically arranged data rotations for spatially diverse transmission 有权数据流交织与非单调布置的数据旋转用于空间多样的传输公开(公告)号：US07711060B1
公开(公告)日：2010-05-04
申请号：US11110623
申请日：2005-04-19
IPC分类号： H04B7/02
CPC分类号： H04L5/0023 , H04B1/38 , H04B7/068 , H04L1/0071 , H04L5/0044 , H04L27/2637 , H04W72/04
摘要： Systems and techniques relating to processing multiple data streams transmitted over a wireless channel. In general, according to at least one implementation, a technique includes: obtaining multiple data streams to be transmitted over a wireless channel using spatially diverse transmission; and applying data rotations to respective data streams, in connection with interleaving the multiple data streams, where the applying includes using data rotation values with respective data streams such that the data rotation values plotted against stream indices correspond to a non-monotonic function. The data rotation values can be independent of a total number of the multiple data streams to be transmitted. The data rotation values can be fixed constants. The same data rotation values can be used with respective data streams irrespective of a selected frequency band. The data rotations can include subcarrier rotations. The data rotations can include column rotations.
摘要翻译： 与通过无线信道传输的处理多个数据流有关的系统和技术。 一般来说，根据至少一个实施方式，一种技术包括：使用空间多样的传输获得要在无线信道上发送的多个数据流; 以及将数据旋转应用于相应数据流，结合交织多个数据流，其中所述应用包括使用具有相应数据流的数据旋转值，使得相对于流指数绘制的数据旋转值对应于非单调函数。 数据旋转值可以与要发送的多个数据流的总数无关。 数据旋转值可以是固定常数。 与所选频带无关，可以将数据旋转值与相应的数据流一起使用。 数据旋转可以包括副载波旋转。 数据旋转可以包括列旋转。
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4.发明授权公开(公告)号：US07924930B1
公开(公告)日：2011-04-12
申请号：US11642442
申请日：2006-12-20
申请人： Atul Salhotra , Kedar Shirali , Zhiyu Yang , Hui-Ling Lou
发明人： Atul Salhotra , Kedar Shirali , Zhiyu Yang , Hui-Ling Lou
CPC分类号： H04B7/0857 , H04B7/084 , H04L2025/03414 , H04L2025/03426
摘要： A synchronization module for an orthogonal frequency-division multiplexing (OFDM) receiver system including a signal combination module that generates N combination signals that correspond to N received signals by performing at least one of weighted combining and selection and equal-gain-combining (EGC) on the N signals. A weighted signal generator module generates N weighted signals based on the N combination signals. N is an integer greater than one.
摘要翻译： 一种用于正交频分复用（OFDM）接收机系统的同步模块，包括信号组合模块，其通过执行加权组合和选择以及等增益组合（EGC）中的至少一个来产生对应于N个接收信号的N个组合信号， 对N信号。 加权信号发生器模块基于N个组合信号产生N个加权信号。 N是大于1的整数。
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5.发明授权公开(公告)号：US08369469B1
公开(公告)日：2013-02-05
申请号：US13085350
申请日：2011-04-12
申请人： Atul Salhotra , Kedar Shirali , Zhiyu Yang , Hui-Ling Lou
发明人： Atul Salhotra , Kedar Shirali , Zhiyu Yang , Hui-Ling Lou
IPC分类号： H04L25/08
CPC分类号： H04B7/0857 , H04B7/084 , H04L2025/03414 , H04L2025/03426
摘要： A method including: receiving, through a wireless channel, a plurality of modulated signals at a plurality of antennas, wherein each antenna receives a corresponding modulated signal; generating a plurality of autocorrelated signals by autocorrelating the plurality of modulated signals; determining whether a signal strength associated with each modulated signal is (i) below a threshold or (ii) above the threshold; for each modulated signal having a signal strength below the threshold, disabling the antenna that received the modulated signal having the signal strength below the threshold; combining the modulated signals having a signal strength above the threshold; generating weighted autocorrelated signals based on (i) the plurality of autocorrelated signals and (ii) the combined modulated signals; generating a combined weighted signal by summing the weighted autocorrelation signals; demodulating the combined weighted signal; and determining a state of the wireless channel based on the demodulation of the combined weighted signal.
摘要翻译： 一种方法，包括：通过无线信道在多个天线处接收多个调制信号，其中每个天线接收对应的调制信号; 通过对所述多个调制信号进行自相关来生成多个自相关信号; 确定与每个调制信号相关联的信号强度是否是（i）低于阈值或（ii）高于阈值; 对于具有低于阈值的信号强度的每个调制信号，禁用接收到信号强度低于阈值的调制信号的天线; 组合具有高于阈值的信号强度的调制信号; 基于（i）所述多个自相关信号和（ii）所述组合调制信号产生加权自相关信号; 通过对加权的自相关信号求和来产生组合的加权信号; 解调组合加权信号; 以及基于所述组合加权信号的解调来确定所述无线信道的状态。
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6.发明授权Equal power output spatial spreading matrix for use in a wireless MIMO communication system 有权用于无线MIMO通信系统的等功率输出空间扩展矩阵公开(公告)号：US08477869B1
公开(公告)日：2013-07-02
申请号：US13567763
申请日：2012-08-06
CPC分类号： H04B7/0678 , H04L1/06
摘要： A symbol encoder unit is configured to produce two or more encoded spatial data streams, wherein a number, NSS, of the encoded spatial data streams is less than a number, NTX, of transmission antennas to be used to transmit the encoded spatial data streams. A spatial spreading unit is configured to utilize a spatial spreading matrix Q to distribute two or more encoded spatial data streams to the transmission antennas. Q has NTX rows and NSS columns, and Q satisfies one or more of the following two constraints: ∑ l = 1 N SS Q ( t , l ) 2 = A t B ( a ) for all t=1 . . . NTX., or ∑ l = 1 N SS S l Q ( t , l ) 2 = A t B ( b ) for all t=1 . . . NTX when Sl is equal to (i)−1 or (ii) 1. Q(t,l) is a component of Q at row t, column l, Sl is a symbol in an 1-th spatial stream. B is a constant, and A1, A2, . . . , ANTX is a sequence of constants.
摘要翻译： 符号编码器单元被配置为产生两个或更多个编码的空间数据流，其中编码的空间数据流的数量NSS小于要用于发送编码的空间数据流的发送天线的数目NTX。 空间扩展单元被配置为利用空间扩展矩阵Q将两个或更多个经编码的空间数据流分配到发射天线。 Q具有NTX行和NSS列，并且Q满足以下两个约束中的一个或多个：Σl = 1 N SS Q（t，l）ert 2 = A t B（a）对于所有t = 1 。 。 。 NTX。或Σl = 1 N SS S l Q（t，l）ert 2 = A t B（b）对于所有t = 1。 。 。 当S1等于（i）-1或（ii）1时，NTX为（i，i），Q（t，l）为第t列第1列中的Q的分量，S1为第1个空间流中的符号。 B是常数，A1，A2。 。 。 ANTX是常数序列。
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7.发明授权Equal power output spatial spreading matrix for use in a wireless MIMO communication system 有权用于无线MIMO通信系统的等功率输出空间扩展矩阵公开(公告)号：US08238466B2
公开(公告)日：2012-08-07
申请号：US12788081
申请日：2010-05-26
CPC分类号： H04B7/0678 , H04L1/06
摘要： A spatial spreading unit is configured to utilize a spatial spreading matrix to distribute two or more encoded spatial data streams to transmission antennas. The spatial spreading matrix has components (i) associated with each row of a row dimension having a number of rows equal to the number of the transmission antennas to be used to transmit the encoded spatial data streams and (ii) associated with each column of a column dimension having a number of columns equal to the number of the encoded spatial data streams to be transmitted. Additionally, the spatial spreading matrix satisfies one or more of the following two constraints: (1) the ratio of squared norms of the sum of the components of a row, for different rows of the spatial spreading matrix, is equal to a first constant sequence, and (2) the ratio of squared norms of the sum of a symbol Sl to be transmitted, when the symbol Sl is equal to 1 or −1, multiplied by each of the components of a row, for different rows of the spatial spreading matrix, is equal to a second constant sequence.
摘要翻译： 空间扩展单元被配置为利用空间扩展矩阵将两个或更多个经编码的空间数据流分配到发射天线。 空间扩展矩阵具有与行尺寸的每行相关联的组件（i），其具有等于要用于发送编码的空间数据流的发送天线的数量的行数，以及（ii）与每个列相关联的 列尺寸具有等于要发送的编码空间数据流的数量的列数。 此外，空间扩展矩阵满足以下两个约束中的一个或多个：（1）对于空间扩展矩阵的不同行，行的分量之和的平方范数的比等于第一常数序列 ，和（2）当符号S1等于1或-1时，要发送的符号S1的和的平方值的比值乘以一行的每个分量，对于不同的空间扩展行 矩阵等于第二个常数序列。
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公开(公告)号：US07944984B1
公开(公告)日：2011-05-17
申请号：US11705248
申请日：2007-02-12
申请人： Songping Wu , Qing Zhao , Atul Salhotra , Hui-Ling Lou , Thomas B. Cho
发明人： Songping Wu , Qing Zhao , Atul Salhotra , Hui-Ling Lou , Thomas B. Cho
IPC分类号： H04L5/12
CPC分类号： H04L27/364
摘要： An I/Q calibration system for a quadrature amplitude modulation (QAM) mode transceiver includes a signal generator that generates reference in-phase (I) and quadrature (Q) signals. An I/Q mismatch compensation module generates compensated I and Q signals based on the reference I and Q signals and amplitude and phase correction signals. An I/Q mismatch calibration module generates the amplitude and phase correction signals. A phase stepper module varies a phase of the reference I and Q signals based on the amplitude and phase correction signals.
摘要翻译： 用于正交幅度调制（QAM）模式收发器的I / Q校准系统包括产生参考同相（I）和正交（Q）信号的信号发生器。 I / Q失配补偿模块基于参考I和Q信号以及幅度和相位校正信号产生补偿的I和Q信号。 I / Q不匹配校准模块生成幅度和相位校正信号。 相位步进模块基于幅度和相位校正信号改变参考I和Q信号的相位。
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9.发明申请Equal Power Output Spatial Spreading Matrix for Use in a Wireless MIMO Communication System 有权用于无线MIMO通信系统的等功率输出空间扩频矩阵公开(公告)号：US20100232475A1
公开(公告)日：2010-09-16
申请号：US12788081
申请日：2010-05-26
IPC分类号： H04B1/00
CPC分类号： H04B7/0678 , H04L1/06
摘要： A spatial spreading unit is configured to utilize a spatial spreading matrix to distribute two or more encoded spatial data streams to transmission antennas. The spatial spreading matrix has components (i) associated with each row of a row dimension having a number of rows equal to the number of the transmission antennas to be used to transmit the encoded spatial data streams and (ii) associated with each column of a column dimension having a number of columns equal to the number of the encoded spatial data streams to be transmitted. Additionally, the spatial spreading matrix satisfies one or more of the following two constraints: (1) the ratio of squared norms of the sum of the components of a row, for different rows of the spatial spreading matrix, is equal to a first constant sequence, and (2) the ratio of squared norms of the sum of a symbol Sl to be transmitted, when the symbol Sl is equal to 1 or −1, multiplied by each of the components of a row, for different rows of the spatial spreading matrix, is equal to a second constant sequence.
摘要翻译： 空间扩展单元被配置为利用空间扩展矩阵将两个或更多个经编码的空间数据流分配到发射天线。 空间扩展矩阵具有与行尺寸的每行相关联的组件（i），其具有等于要用于发送编码的空间数据流的发送天线的数量的行数，以及（ii）与每个列相关联的 列尺寸具有等于要发送的编码空间数据流的数量的列数。 此外，空间扩展矩阵满足以下两个约束中的一个或多个：（1）对于空间扩展矩阵的不同行，行的分量之和的平方范数的比等于第一常数序列 ，和（2）当符号S1等于1或-1时，要发送的符号S1的和的平方值的比值乘以一行的每个分量，对于不同的空间扩展行 矩阵等于第二个常数序列。
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10.发明授权Equal power output spatial spreading matrix for use in a wireless MIMO communication system 有权用于无线MIMO通信系统的等功率输出空间扩展矩阵公开(公告)号：US07751495B1
公开(公告)日：2010-07-06
申请号：US11851237
申请日：2007-09-06
CPC分类号： H04B7/0678 , H04L1/06
摘要： A wireless communication system uses a spatial spreading matrix to simultaneously transmit various different streams of encoded symbol data simultaneously via multiple transmission antennas, wherein the spatial spreading matrix is designed to assure that the different transmission antennas provide equal power output in the presence of both correlated and uncorrelated data within the different encoded symbol streams. The use of this spatial spreading matrix reduces or eliminates the condition in which a particular one of the transmission antennas needs to operate at an output power that is significantly higher than the others of the transmission antennas, which might lead to saturation of, or to the non-linear or abnormal operation of a power amplifier associated with the particular transmission antenna, resulting in improper amplification for that particular transmission antenna.
摘要翻译： 无线通信系统使用空间扩展矩阵同时通过多个发射天线发射各种不同的编码符号数据流，其中空间扩展矩阵被设计为确保不同的发射天线在存在相关和相关的情况下提供相等的功率输出 不同编码符号流内的不相关数据。 这种空间扩展矩阵的使用减少或消除了特定一个发射天线需要以明显高于发射天线其他发射天线的输出功率来工作的条件，这可能导致饱和， 与特定发射天线相关联的功率放大器的非线性或异常操作，导致该特定发射天线的不正确的放大。
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