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1.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：US09143219B1
公开(公告)日：2015-09-22
申请号：US14320098
申请日：2014-06-30
Applicant: MARVELL INTERNATIONAL LTD.
Inventor： Arul Durai Murugan Palanivelu , Hui-Ling Lou , Kedar Shirali , Rohit U. Nabar , Atul Salhotra
IPC: H04B7/06
CPC classification number: H04B7/0678 , H04L1/06
Abstract: A transceiver utilizes a spatial spreading matrix to distribute two or more encoded spatial data streams to multiple antennas. The spatial spreading matrix satisfies one or more of the following two constraints: (a) 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 (b) the ratio of squared norms of the sum of a symbol S1 to be transmitted, when the symbol S1 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.
Abstract translation: 收发器利用空间扩展矩阵将两个或多个编码空间数据流分配到多个天线。 空间扩展矩阵满足以下两个约束中的一个或多个：（a）对于空间扩展矩阵的不同行，行的分量之和的平方的比率等于第一常数序列，并且 （b）对于空间扩展矩阵的不同行，当符号S1等于1或-1时，要发送的符号S1的总和的平方范数与行的每个分量相乘， 等于第二个常数序列。
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公开(公告)号：US09031145B1
公开(公告)日：2015-05-12
申请号：US14291473
申请日：2014-05-30
Applicant: Marvell International Ltd.
Inventor： Arul Durai Murugan Palanivelu , Leilei Song , Rohit U. Nabar , Jungwon Lee , Sayandev Mukherjee , Hui-Ling Lou
CPC classification number: H04B7/0413 , H04L25/03242 , H04L25/03961 , H04L25/067 , H04L2025/03414 , H04L2025/0342
Abstract: Systems and methods for detecting data in a multiple input/multiple output signal. The method includes receiving a first signal associated with a first data value and a second signal associated with a second data value. A distance value between the received second signal and each possible second data value is calculated. Coordinates for a hypothetical first signal in light of a first possible second data value are calculated, and the first coordinate value is quantized to a nearest constellation point. A distance value between the received second signal and each possible second data value is calculated using the calculated constellation points. A determination is made of a log-likelihood ratio based on the determined distance values.
Abstract translation: 用于检测多输入/多输出信号中的数据的系统和方法。 该方法包括接收与第一数据值相关联的第一信号和与第二数据值相关联的第二信号。 计算接收到的第二信号与每个可能的第二数据值之间的距离值。 计算出根据第一可能的第二数据值的假设第一信号的坐标，并且将第一坐标值量化到最接近的星座点。 使用所计算的星座点来计算所接收的第二信号与每个可能的第二数据值之间的距离值。 基于确定的距离值来确定对数似然比。
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公开(公告)号：US08953720B1
公开(公告)日：2015-02-10
申请号：US13747059
申请日：2013-01-22
Applicant: Marvell International Ltd.
Inventor： Arul Durai Murugan Palanivelu , Sudhir Srinivasa , Hongyuan Zhang , Rohit U. Nabar
CPC classification number: H04L27/2613 , H04L25/022 , H04L25/0256 , H04L27/0012 , H04L27/2035 , H04L27/206 , H04L27/2656 , H04L27/2666 , H04L27/2672 , H04L27/2682
Abstract: In a method for detecting a packet type of an orthogonal frequency division multiplexing (OFDM) data unit detected in a communication channel, a first estimate and a second estimate of a transmitted symbol are determined for each of at least some of a plurality of OFDM tones in an OFDM symbol of the data unit. A first distance and a second distance are determined between a received symbol and, respectively, the first estimate and the second estimate scaled by a channel response estimate corresponding to the OFDM tone. A first total distance is determined based on a mathematical summation of the first distances over the plurality of OFDM tones. A second total distance is determined based on a mathematical summation of the second distances over the plurality of OFDM tones. The packet type is determined based at least on the first total distance and the second total distance.
Abstract translation: 在用于检测在通信信道中检测到的正交频分复用（OFDM）数据单元的分组类型的方法中，针对多个OFDM音调中的至少一些OFDM音调中的每一个确定发送符号的第一估计和第二估计 在数据单元的OFDM符号中。 第一距离和第二距离在接收到的符号和分别由与OFDM音调对应的信道响应估计量化的第一估计和第二估计之间确定。 基于多个OFDM音调上的第一距离的数学求和来确定第一总距离。 基于多个OFDM音调上的第二距离的数学求和来确定第二总距离。 至少基于第一总距离和第二总距离来确定分组类型。
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公开(公告)号：US08948150B1
公开(公告)日：2015-02-03
申请号：US14094687
申请日：2013-12-02
Applicant: Marvell International Ltd.
Inventor： Hongyuan Zhang , Rohit U. Nabar , Hui-Ling Lou , Sudhir Srinivasa , Arul Durai Murugan Palanivelu
CPC classification number: H04W84/02 , H04J11/00 , H04L1/0643 , H04L27/2626
Abstract: In a method for transmitting information in a wireless local area network (WLAN), a plurality of different data streams corresponding to a plurality of different devices are orthogonally multiplexed onto a single symbol stream without using channel state information corresponding to a plurality of channels between a transmitting device and the plurality of different devices. One or more transmit streams are generated using the single symbol stream.
Abstract translation: 在用于在无线局域网（WLAN）中发送信息的方法中，对应于多个不同设备的多个不同数据流被正交地复用到单个符号流上，而不使用对应于多个信道之间的信道状态信息 发送装置和多个不同的装置。 使用单个符号流生成一个或多个发送流。
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公开(公告)号：US08774301B1
公开(公告)日：2014-07-08
申请号：US13672141
申请日：2012-11-08
Applicant: Marvell International Ltd.
Inventor： Arul Durai Murugan Palanivelu , Leilei Song , Rohit U. Nabar , Jungwon Lee , Sayandev Mukherjee , Hui-Ling Lou
IPC: H04L23/02
CPC classification number: H04B7/0413 , H04L25/03242 , H04L25/03961 , H04L25/067 , H04L2025/03414 , H04L2025/0342
Abstract: Systems and methods for detecting data in a multiple input/multiple output signal. The method includes receiving a first signal associated with a first data value and a second signal associated with a second data value. A distance value between the received second signal and each possible second data value is calculated. Coordinates for a hypothetical first signal in light of a first possible second data value are calculated, and the first coordinate value is quantized to a nearest constellation point. A distance value between the received second signal and each possible second data value is calculated using the calculated constellation points. A determination is made of a log-likelihood ratio based on the determined distance values.
Abstract translation: 用于检测多输入/多输出信号中的数据的系统和方法。 该方法包括接收与第一数据值相关联的第一信号和与第二数据值相关联的第二信号。 计算接收到的第二信号与每个可能的第二数据值之间的距离值。 计算出根据第一可能的第二数据值的假设第一信号的坐标，并且将第一坐标值量化到最接近的星座点。 使用所计算的星座点来计算所接收的第二信号与每个可能的第二数据值之间的距离值。 基于确定的距离值来确定对数似然比。
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Patent Agency Ranking
6.发明授权Increasing the robustness of channel estimates derived through sounding for WLAN 有权增加通过WLAN的声音导出的信道估计的鲁棒性公开(公告)号：US09002305B1
公开(公告)日：2015-04-07
申请号：US14251966
申请日：2014-04-14
Applicant: Marvell International Ltd.
Inventor： Rohit U. Nabar , Hongyuan Zhang , Arul Durai Murugan Palanivelu
CPC classification number: H04L25/0228 , H04B7/0413 , H04L5/0023 , H04L25/0204 , H04W72/085
Abstract: A plurality of training signal sets are transmitted. Each training signal set includes information sufficient to determine a channel estimate corresponding to a communication channel from a first station to a second station. A refined channel estimate is determined based on reception of the plurality of training signal sets.
Abstract translation: 发送多个训练信号组。 每个训练信号组包括足以确定对应于从第一站到第二站的通信信道的信道估计的信息。 基于多个训练信号组的接收来确定精细信道估计。
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7.发明授权Physical layer frame format design for wideband wireless communications systems 有权宽带无线通信系统的物理层帧格式设计公开(公告)号：US08902798B2
公开(公告)日：2014-12-02
申请号：US14077624
申请日：2013-11-12
Applicant: Marvell International Ltd.
Inventor： Hongyuan Zhang , Rohit U Nabar , Arul Durai Murugan Palanivelu , Hui-Ling Lou , Songping Wu
CPC classification number: H04L27/2649 , H04L1/0072 , H04L1/0079 , H04L5/0007 , H04L5/0092 , H04L25/0204 , H04L25/022 , H04L27/0008 , H04L27/0012 , H04L27/2601 , H04L27/2602
Abstract: Systems and methods are provided for processing a payload portion of a received signal in a single carrier mode or a multiple carrier mode based on a portion of the received signal. A single carrier signaling portion is received at a first rate, and whether the payload portion of the signal is a single carrier signal or a multiple carrier signal is detected from the received single carrier signaling portion. The payload portion of the received signal is received at the first rate and demodulated in a single carrier mode if the detecting determines that the payload portion of the received signal is a single carrier signal, and the payload portion of the received signal is demodulated in a multiple carrier mode if the detecting determines that the payload portion of the received signal is a multiple carrier signal.
Abstract translation: 提供了系统和方法，用于基于接收信号的一部分，以单载波模式或多载波模式处理接收信号的有效载荷部分。 以第一速率接收单载波信令部分，以及信号的有效载荷部分是单载波信号还是从所接收的单载波信令部分检测多载波信号。 如果检测结果确定接收信号的有效载荷部分是单载波信号，则以第一速率接收接收信号的有效载荷部分并以单载波模式进行解调，并且接收信号的有效载荷部分被解调为 多载波模式，如果检测确定接收信号的有效载荷部分是多载波信号。
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8.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：US08767863B1
公开(公告)日：2014-07-01
申请号：US13932862
申请日：2013-07-01
Applicant: Marvell International Ltd.
Inventor： Arul Durai Murugan Palanivelu , Hui-Ling Lou , Kedar Shirali , Rohit U. Nabar , Atul Salhotra
CPC classification number: H04B7/0678 , H04L1/06
Abstract: A transceiver utilizes a spatial spreading matrix to distribute two or more encoded spatial data streams to multiple antennas. The spatial spreading matrix satisfies one or more of the following two constraints: (a) 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 (b) 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.
Abstract translation: 收发器利用空间扩展矩阵将两个或多个编码空间数据流分配到多个天线。 空间扩展矩阵满足以下两个约束中的一个或多个：（a）对于空间扩展矩阵的不同行，行的分量之和的平方的比率等于第一常数序列，并且 （b）对于空间扩展矩阵的不同行，当符号S1等于1或-1时，要发送的符号S1的和的平方范数与行的每个分量相乘， 等于第二个常数序列。
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9.发明授权Method for computing sub-stream invariant steering matrices for MIMO beamforming 有权用于计算MIMO波束成形的子流不变导引矩阵的方法公开(公告)号：US08718176B1
公开(公告)日：2014-05-06
申请号：US13730393
申请日：2012-12-28
Applicant: Marvell International Ltd.
Inventor： Arul Durai Murugan Palanivelu , Hongyuan Zhang , Swaroop Venkatesh
CPC classification number: H04B7/0456 , H04B7/0452 , H04B7/0617 , H04L27/2626
Abstract: In a method for generating steering matrices for beamforming, one or more subsets of one or more maximum transmit steering matrices are selected, where the maximum transmit steering matrices correspond to a maximum number of spatial streams able to be transmitted from a transmitter to a receiver. The subsets correspond to an actual number of spatial streams to be transmitted, and the subsets are applied to spatial streams to be transmitted. In an apparatus for generating steering matrices, a steering matrix calculator is configured to determine, from maximum transmit steering matrices, a plurality of steering coefficients corresponding to an actual number of spatial streams.
Abstract translation: 在用于生成用于波束形成的导引矩阵的方法中，选择一个或多个最大发射导引矩阵的一个或多个子集，其中最大发射导向矩阵对应于能够从发射机发射到接收机的最大数量的空间流。 子集对应于要发送的空间流的实际数量，并且子集被应用于要发送的空间流。 在用于产生导向矩阵的装置中，导引矩阵计算器被配置为从最大发射导向矩阵确定与实际数量的空间流相对应的多个转向系数。
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10.发明授权Method for computing sub-stream invariant steering matrices for MIMO beamforming 有权用于计算MIMO波束成形的子流不变导引矩阵的方法公开(公告)号：US08953706B1
公开(公告)日：2015-02-10
申请号：US14259596
申请日：2014-04-23
Applicant: Marvell International Ltd.
Inventor： Arul Durai Murugan Palanivelu , Hongyuan Zhang , Swaroop Venkatesh
CPC classification number: H04B7/0456 , H04B7/0452 , H04B7/0617 , H04L27/2626
Abstract: In a method for generating steering matrices for beamforming, one or more subsets of one or more maximum transmit steering matrices are selected, where the maximum transmit steering matrices correspond to a maximum number of spatial streams able to be transmitted from a transmitter to a receiver. The subsets correspond to an actual number of spatial streams to be transmitted, and the subsets are applied to spatial streams to be transmitted. In an apparatus for generating steering matrices, a steering matrix calculator is configured to determine, from maximum transmit steering matrices, a plurality of steering coefficients corresponding to an actual number of spatial streams.
Abstract translation: 在用于生成用于波束形成的导引矩阵的方法中，选择一个或多个最大发射导引矩阵的一个或多个子集，其中最大发射导向矩阵对应于能够从发射机发射到接收机的最大数量的空间流。 子集对应于要发送的空间流的实际数量，并且子集被应用于要发送的空间流。 在用于产生导向矩阵的装置中，导引矩阵计算器被配置为从最大发射导向矩阵确定与实际数量的空间流相对应的多个转向系数。
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