公开(公告)号：US20060104393A1

公开(公告)日：2006-05-18

申请号：US10992404

申请日：2004-11-17

申请人： Michael DiRenzo ,  David Magee ,  Manish Goel

发明人： Michael DiRenzo ,  David 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采集字段来提供相关函数。 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：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。

公开(公告)号：US20050170831A1

公开(公告)日：2005-08-04

申请号：US10929705

申请日：2004-08-30

申请人： David Magee ,  Manish Goel ,  Michael DiRenzo

发明人： David Magee ,  Manish Goel ,  Michael DiRenzo

IPC分类号： H04B7/08 ,  H04Q7/00

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：US20060104380A1

公开(公告)日：2006-05-18

申请号：US10992403

申请日：2004-11-17

申请人： David Magee ,  Manish Goel ,  Michael DiRenzo ,  Michael Polley

发明人： David Magee ,  Manish Goel ,  Michael DiRenzo ,  Michael Polley

IPC分类号： H04B7/02 ,  H04B7/06

CPC分类号： H04L25/0204 ,  H04B7/04 ,  H04B7/0619 ,  H04L25/0226 ,  H04L27/2626 ,  H04L27/2647

摘要： The present invention provides a channel estimate enhancer for use with a multiple-input, multiple-output (MIMO) transmitter employing N transmit antennas, where N is at least two. In one embodiment, the channel estimate enhancer includes a first preamble generator that produces a basic preamble configured to provide gain training and channel estimation sequences to one of the N transmit antennas during initial time intervals. Additionally, the channel estimate enhancer also includes a second preamble generator, coupled to the first preamble generator, that produces supplementary preambles configured to provide a set of gain enhancing channel estimation sequences to each of (N−1) remaining transmit antennas during (N−1) corresponding sets of subsequent time intervals.

摘要翻译： 本发明提供一种与采用N个发射天线的多输入多输出（MIMO）发射机一起使用的信道估计增强器，其中N是至少两个。 在一个实施例中，信道估计增强器包括第一前导码生成器，其产生配置成在初始时间间隔期间向N个发射天线之一提供增益训练和信道估计序列的基本前同步码。 另外，信道估计增强器还包括耦合到第一前导码生成器的第二前导码生成器，其产生补充前导码，其被配置为在（N-1）期间向（N-1）个剩余发射天线中的每一个提供一组增益增强信道估计序列， 1）相应的后续时间间隔集。

公开(公告)号：US20060072681A1

公开(公告)日：2006-04-06

申请号：US10956406

申请日：2004-10-01

申请人： Manish Goel ,  Michael DiRenzo ,  David Magee

发明人： Manish Goel ,  Michael DiRenzo ,  David Magee

IPC分类号： H04B7/02

CPC分类号： H04B7/0413

摘要： The present invention provides a gain retraining generator for use with a MIMO transmitter employing N transmit antennas, where N is at least two. In one embodiment, the gain retraining generator includes a first sequence encoder configured to provide a gain retraining sequence to one of the N transmit antennas during a non-initial time interval. The gain retraining generator also includes a second sequence encoder coupled to the first sequence encoder and configured to further provide (N-1) alternative gain retraining sequences to (N-1) remaining transmit antennas, respectively, during the non-initial time interval to retrain receive gains for multiple concurrent data transmissions.

摘要翻译： 本发明提供了一种与使用N个发射天线的MIMO发射机一起使用的增益再训练发生器，其中N是至少两个。 在一个实施例中，增益再培训发生器包括第一序列编码器，其被配置为在非初始时间间隔期间向N个发射天线之一提供增益再训练序列。 增益再培训发生器还包括耦合到第一序列编码器的第二序列编码器，并且被配置为在非初始时间间隔期间进一步向（N-1）个剩余发射天线提供（N-1）替代增益再训练序列， 重新训练接收多个并行数据传输的增益。

公开(公告)号：US20050271174A1

公开(公告)日：2005-12-08

申请号：US10974578

申请日：2004-10-27

申请人： Michael DiRenzo ,  David Magee ,  Manish Goel

发明人： Michael DiRenzo ,  David Magee ,  Manish Goel

IPC分类号： H04L1/06 ,  H04L7/00 ,  H04L7/04 ,  H04L7/10 ,  H04L27/26

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：US20050169398A1

公开(公告)日：2005-08-04

申请号：US11028829

申请日：2005-01-04

申请人： David Magee ,  Michael DiRenzo ,  Manish Goel

发明人： David Magee ,  Michael DiRenzo ,  Manish Goel

IPC分类号： H04B7/06 ,  H04L1/02

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：US20060034271A1

公开(公告)日：2006-02-16

申请号：US10918982

申请日：2004-08-16

申请人： Michael DiRenzo ,  David Magee ,  Manish Goel

发明人： Michael DiRenzo ,  David Magee ,  Manish Goel

IPC分类号： H04L12/56

CPC分类号： H04B7/0882 ,  H04B7/0837 ,  H04B7/0871 ,  H04B7/0874 ,  H04L27/2649

摘要： A packet detection system for a packet-based wireless receiver and a method of detecting packets for use with such receiver. In one embodiment, the packet detection system includes: (1) first and second chain-level packet detection circuits and configured to produce corresponding chain-level status signals and (2) a receiver-level packet detection circuit coupled to both the first and second chain-level packet detection circuits and configured to generate receiver-level status signals from the chain-level status signals.

摘要翻译： 一种用于基于分组的无线接收机的分组检测系统以及检测与这种接收机一起使用的分组的方法。 在一个实施例中，分组检测系统包括：（1）第一和第二链级分组检测电路，并且被配置为产生相应的链级状态信号，以及（2）接收机级分组检测电路，其耦合到第一和第二 链级分组检测电路并且被配置为从链级状态信号生成接收机级状态信号。

公开(公告)号：US20050169399A1

公开(公告)日：2005-08-04

申请号：US11029289

申请日：2005-01-05

申请人： David Magee ,  Michael DiRenzo ,  Manish Goel

发明人： David Magee ,  Michael DiRenzo ,  Manish Goel

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04B7/02

摘要： The present invention provides a signal field scaler for use with a multiple-input, multiple-output (MIMO) transmitter employing N transmit antennas, where N is at least two. In one embodiment, the signal field scaler includes a signal field generator configured to provide a signal field corresponding to a multiple concurrent transmission to each of the N transmit antennas during a time interval. Additionally, the signal field scaler also includes a signal field adapter coupled to the signal field generator and configured to apply a vector of scale factors to the signal field for each of the N transmit antennas during the time interval to allow proper decoding of the signal field by a legacy receiver and a MIMO receiver.

摘要翻译： 本发明提供了一种与采用N个发射天线的多输入多输出（MIMO）发射机一起使用的信号场缩放器，其中N是至少两个。 在一个实施例中，信号场定标器包括信号场发生器，其被配置为在时间间隔期间向N个发射天线中的每一个提供对应于多个并发传输的信号场。 此外，信号场定标器还包括信号场适配器，其耦合到信号场发生器并且被配置为在时间间隔期间向N个发射天线中的每一个施加比例因子的矢量到信号场，以允许信号场的适当解码 由传统接收机和MIMO接收机。

公开(公告)号：US20050169397A1

公开(公告)日：2005-08-04

申请号：US10953544

申请日：2004-09-29

申请人： Manish Goel ,  David Magee ,  Michael DiRenzo ,  Michael Polley

发明人： Manish Goel ,  David Magee ,  Michael DiRenzo ,  Michael Polley

IPC分类号： H04B7/02 ,  H04B7/04

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 having 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： 本发明提供了一种与具有两个或更多个发射天线N的MIMO发射机一起使用的并发增益发生器。 在一个实施例中，并发增益生成器包括第一序列格式器，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。