公开(公告)号：US07746962B2

公开(公告)日：2010-06-29

申请号：US10992404

申请日：2004-11-17

申请人： Michael T. DiRenzo ,  David P. Magee ,  Manish Goel

发明人： Michael T. DiRenzo ,  David P. Magee ,  Manish Goel

IPC分类号： H04L27/06

CPC分类号： H04L7/042 ,  H04B1/708 ,  H04B1/7093

摘要： The present invention provides a packet detector for use with a packet-based wireless receiver employing a receive antenna for P concurrently transmitted streams, where P is at least two. In one embodiment, the packet detector includes a correlation unit coupled to the single receive antenna and configured to provide a correlation function based on P acquisition fields corresponding to the P concurrently transmitted streams. Additionally, the packet detector also includes a pseudo-magnitude calculator coupled to the correlation unit and configured to calculate a packet detection metric based on the correlation function.

摘要翻译： 本发明提供了一种与用于P并发传输流的接收天线的基于分组的无线接收机一起使用的分组检测器，其中P是至少两个。 在一个实施例中，分组检测器包括耦合到单个接收天线的相关单元，并且被配置为基于与P个同时发送的流相对应的P采集字段提供相关函数。 另外，分组检测器还包括耦合到相关单元并被配置为基于相关函数计算分组检测度量的伪幅度计算器。

公开(公告)号：US07492843B2

公开(公告)日：2009-02-17

申请号：US10974578

申请日：2004-10-27

申请人： Michael T. DiRenzo ,  David P. Magee ,  Manish Goel

发明人： Michael T. DiRenzo ,  David P. Magee ,  Manish Goel

IPC分类号： H04L1/02 ,  H04L7/00 ,  H04L27/28

CPC分类号： H04L7/042 ,  H04L1/06 ,  H04L7/10 ,  H04L27/2662 ,  H04L27/2675

摘要： A system for synchronizing a wireless receiver is provided. The system includes a first antenna (101a) and a second antenna (101b) to receive wireless signals containing data packets. The system includes one or more analyzer components (156) operable to determine correlation metrics based on at least a portion of the first received signal and a portion of the second received signal. The system further includes a synchronization component (158) operable to use the correlation metrics to determine a preferred correlation metric for synchronization by the wireless receiver of the first and second received signals to decode the data packet. A method for synchronizing a receiver of two wireless signals is also provided.

摘要翻译： 提供了一种用于同步无线接收机的系统。 该系统包括用于接收包含数据分组的无线信号的第一天线（101a）和第二天线（101b）。 系统包括一个或多个分析器组件（156），其可操作以基于第一接收信号的至少一部分和第二接收信号的一部分来确定相关度量。 所述系统还包括同步组件（158），其可操作以使用所述相关度量来确定所述无线接收机对所述第一和第二接收信号进行同步的优选相关度量，以对所述数据分组进行解码。 还提供了一种用于同步两个无线信号的接收机的方法。

公开(公告)号：US07457232B2

公开(公告)日：2008-11-25

申请号：US10929705

申请日：2004-08-30

申请人： David P Magee ,  Manish Goel ,  Michael T. Direnzo ,  Michael O. Polley

发明人： David P Magee ,  Manish Goel ,  Michael T. Direnzo ,  Michael O. Polley

IPC分类号： H04J11/00

CPC分类号： H04B7/0811

摘要： A preamble frequency switching design technique for frequency switching the training symbols within the preamble associated with a MIMO communication system ensures that data throughput is optimized.

摘要翻译： 用于频率切换与MIMO通信系统相关的前导码内的训练符号的前导码频率切换设计技术确保数据吞吐量被优化。

公开(公告)号：US20090052433A1

公开(公告)日：2009-02-26

申请号：US12261240

申请日：2008-10-30

申请人： Michael T. DiRenzo ,  David P. Magee ,  Manish Goel

发明人： Michael T. DiRenzo ,  David P. Magee ,  Manish Goel

IPC分类号： H04J3/06

CPC分类号： H04L7/042 ,  H04L1/06 ,  H04L7/10 ,  H04L27/2662 ,  H04L27/2675

摘要： A system for synchronizing a wireless receiver is provided. The system includes a first antenna and a second antenna to receive independent wireless signals containing different combination of data packets. The system includes one or more analyzer components operable to determine correlation metrics based on at least a portion of the first received signal and a portion of the second received signal. The system further includes a synchronization component operable to use the correlation metrics to determine a preferred correlation metric for synchronization by the wireless receiver of the first and second received signals to decode the data packet. A method for synchronizing a receiver of two wireless signals is also provided.

摘要翻译： 提供了一种用于同步无线接收机的系统。 该系统包括第一天线和第二天线，用于接收包含不同数据分组组合的独立无线信号。 该系统包括一个或多个分析器组件，其可操作以基于第一接收信号的至少一部分和第二接收信号的一部分来确定相关度量。 所述系统还包括可操作以使用所述相关度量来确定所述无线接收机对所述第一和第二接收信号进行同步的优选相关度量以对所述数据分组进行解码的同步分量。 还提供了一种用于同步两个无线信号的接收机的方法。

公开(公告)号：US07457369B2

公开(公告)日：2008-11-25

申请号：US11028829

申请日：2005-01-04

申请人： David P. Magee ,  Michael T. DiRenzo ,  Manish Goel

发明人： David P. Magee ,  Michael T. DiRenzo ,  Manish Goel

IPC分类号： H04B7/02

CPC分类号： H04B7/0697

摘要： The present invention provides a gain training generator for use with a multiple-input, multiple-output (MIMO) transmitter employing N transmit antennas where N is at least two. In one embodiment, the gain training generator includes a fundamental training encoder configured to provide a basic gain training sequence to one of the N transmit antennas during a time interval to produce a basic gain training waveform having a basic peak-to-average ratio (PAR). Additionally, the gain training generator also includes a supplemental training encoder coupled to the fundamental training encoder and configured to further provide (N−1) supplemental gain training sequences to (N−1) remaining transmit antennas, respectively, during the time interval to produce supplemental gain training waveforms wherein each has a supplemental PAR substantially equal to the basic PAR.

摘要翻译： 本发明提供一种增益训练发生器，其用于与N个至少两个的N个发射天线的多输入多输出（MIMO）发射机一起使用。 在一个实施例中，增益训练发生器包括基本训练编码器，其被配置为在时间间隔期间向N个发射天线之一提供基本增益训练序列，以产生具有基本峰均比（PAR）的基本增益训练波形 ）。 另外，增益训练发生器还包括耦合到基本训练编码器的辅助训练编码器，并且被配置为在产生时间间隔内分别向（N-1）个剩余发射天线提供（N-1）个补充增益训练序列 补充增益训练波形，其中每个具有基本上等于基本PAR的补充PAR。

公开(公告)号：US20080192869A1

公开(公告)日：2008-08-14

申请号：US12106548

申请日：2008-04-21

申请人： Manish Goel ,  David P. Magee ,  Michael T. DiRenzo ,  Michael O. Polley

发明人： Manish Goel ,  David P. Magee ,  Michael T. DiRenzo ,  Michael O. Polley

IPC分类号： H04L27/08

CPC分类号： H04B7/0413 ,  H04B7/02 ,  H04B7/0684

摘要： The present invention provides a concurrent gain generator for use with a MIMO transmitter havi'ng an N of two or more transmit antennas. In one embodiment, the concurrent gain generator includes a first sequence formatter that provides one of the N transmit antennas with a gain training sequence during an initial time interval, and a second sequence formatter that further provides (N−1) remaining transmit antennas with (N−1) additional gain training sequences during the initial time interval to train receive gains. The present invention also provides a non-concurrent gain adjuster for use with a MIMO receiver employing an M of two or more receive antennas. In one embodiment, the non-concurrent gain adjuster includes a gain combiner that computes a common receive gain as a function of M independent receive gains, and a gain applier that applies the common receive gain to receivers associated with the M receive antennas.

摘要翻译： 本发明提供一种并发增益发生器，用于与两个或更多发射天线的N个的MIMO发射机一起使用。 在一个实施例中，并发增益生成器包括第一序列格式化器，其在初始时间间隔期间向N个发送天线之一提供增益训练序列;以及第二序列格式器，其进一步向（N-1）个剩余的发射天线提供（N-1） N-1）在初始时间间隔期间训练接收增益的附加增益训练序列。 本发明还提供了一种与使用两个或更多个接收天线的M的MIMO接收机一起使用的非并发增益调整器。 在一个实施例中，非并发增益调整器包括增益组合器，该增益组合器计算作为M个独立接收增益的函数的公共接收增益;以及增益施加器，其将公共接收增益应用于与M个接收天线相关联的接收机。

公开(公告)号：US08755675B2

公开(公告)日：2014-06-17

申请号：US11733831

申请日：2007-04-11

申请人： Michael T. Direnzo ,  Assaf Sella ,  Manish Goel ,  Srinivas Lingam

发明人： Michael T. Direnzo ,  Assaf Sella ,  Manish Goel ,  Srinivas Lingam

IPC分类号： H04N5/76

CPC分类号： G06F12/0284

摘要： An electronic circuit (300) includes a signal processing circuit (310) including first and second signal processing blocks (310.1, 310.3) coupled in cascade, a memory circuit (320) coupled to and adjustable between the first and second signal processing blocks (310.1, 310.3), the memory circuit (320) having memory spaces, the memory circuit (320) configurable to establish a trade-off of the memory spaces between the first and second signal processing blocks (310.1, 310.3), and a configuring circuit (330) operable to configure the trade-off of the memory spaces of the memory circuit (320).

摘要翻译： 电子电路（300）包括信号处理电路（310），该信号处理电路（310）包括级联耦合的第一和第二信号处理块（310.1,310.3），存储电路（320），耦合到第一和第二信号处理块 ，310.3），所述存储器电路（320）具有存储器空间，所述存储器电路（320）可配置为建立所述第一和第二信号处理块（310.1,310.3）之间的存储器空间的权衡，以及配置电路 330），其可操作以配置所述存储器电路（320）的存储空间的权衡。

公开(公告)号：US08306167B2

公开(公告)日：2012-11-06

申请号：US12261240

申请日：2008-10-30

申请人： Michael D. Direnzo ,  David P. Magee ,  Manish Goel

发明人： Michael D. Direnzo ,  David P. Magee ,  Manish Goel

IPC分类号： H04L1/02 ,  H04L7/00 ,  H04L27/28

CPC分类号： H04L7/042 ,  H04L1/06 ,  H04L7/10 ,  H04L27/2662 ,  H04L27/2675

摘要： A system for synchronizing a wireless receiver is provided. The system includes a first antenna and a second antenna to receive independent wireless signals containing different combination of data packets. The system includes one or more analyzer components operable to determine correlation metrics based on at least a portion of the first received signal and a portion of the second received signal. The system further includes a synchronization component operable to use the correlation metrics to determine a preferred correlation metric for synchronization by the wireless receiver of the first and second received signals to decode the data packet. A method for synchronizing a receiver of two wireless signals is also provided.

摘要翻译： 提供了一种用于同步无线接收机的系统。 该系统包括第一天线和第二天线，用于接收包含不同数据分组组合的独立无线信号。 该系统包括一个或多个分析器组件，其可操作以基于第一接收信号的至少一部分和第二接收信号的一部分来确定相关度量。 所述系统还包括可操作以使用所述相关度量来确定所述无线接收机对所述第一和第二接收信号进行同步的优选相关度量以对所述数据分组进行解码的同步分量。 还提供了一种用于同步两个无线信号的接收机的方法。

公开(公告)号：US07187734B2

公开(公告)日：2007-03-06

申请号：US10438243

申请日：2003-05-14

申请人： David P. Magee ,  Srinath Hosur ,  Manish Goel

发明人： David P. Magee ,  Srinath Hosur ,  Manish Goel

IPC分类号： H03D1/04 ,  H04J1/00

CPC分类号： H04L27/2662 ,  H04L27/261 ,  H04L27/2659 ,  H04L27/2675

摘要： A method of correctly estimating the frequency offset when the CPE modem has already acquired and is tracking the OFDM burst boundaries in an OFDM-based, wireless communication system. CPS data in an OFDM-based, wireless communication system is modulated as QPSK data in the training tones of the data burst. As long as some bursts have the CPS data modulation and some bursts do not have the CPS data modulation, the CPS data can be recovered. A slip results when there is a linear phase difference across the tones (after the FFT) between the current and the previous burst. This linear phase difference is generally taken care of by the channel estimation obtained using the pilot tones. This phase difference is however, now compensated for correct frequency offset estimation which occurs before the channel estimation and CPS decoding steps.

摘要翻译： 一种在CPE调制解调器已经获取并正在跟踪基于OFDM的无线通信系统中的OFDM突发边界时正确估计频率偏移的方法。 基于OFDM的无线通信系统中的CPS数据被调制为数据突发的训练音调中的QPSK数据。 只要某些突发具有CPS数据调制，并且一些突发没有CPS数据调制，则可以恢复CPS数据。 当当前和前一个脉冲串之间的音调（在FFT之后）存在线性相位差时，会产生滑动。 这种线性相位差通常由使用导频音获得的信道估计来处理。 然而，该相位差现在被补偿在信道估计和CPS解码步骤之前发生的正确的频率偏移估计。

公开(公告)号：US07184499B2

公开(公告)日：2007-02-27

申请号：US10438242

申请日：2003-05-14

申请人： David P. Magee ,  Srinath Hosur ,  Manish Goel

发明人： David P. Magee ,  Srinath Hosur ,  Manish Goel

IPC分类号： H03D1/04

CPC分类号： H04L27/2662 ,  H04L27/2675

摘要： A method of determining CPS data in an OFDM-based, wireless communication system resolves the phase angle difference between training tones in a burst without CPS data and training tones in a burst with CPS data and then demodulates the resulting difference phase angles to determine the CPS data. The method achieves timing correction/compensation in CPS decode operations associated with OFDM-based, wireless communication systems.

摘要翻译： 一种在基于OFDM的无线通信系统中确定CPS数据的方法，用CPS数据解析突发中没有CPS数据和训练音调的脉冲串中的训练音之间的相位角差，然后解调得到的差相位角以确定CPS 数据。 该方法在与基于OFDM的无线通信系统相关联的CPS解码操作中实现定时校正/补偿。