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1. 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。

2. 发明申请

US20050153723A1 Time-switched preamble generator, method of generating and multiple-input, multiple-output communication system employing the generator and method 有权
标题翻译：时间切换前导码生成器，生成和多输入方法，采用发生器和方法的多输出通信系统
公开(公告)号：US20050153723A1
公开(公告)日：2005-07-14
申请号：US10755603
申请日：2004-01-12
申请人： Srinath Hosur , Srikanth Gummadi , Anuj Batra , David Magee
发明人： Srinath Hosur , Srikanth Gummadi , Anuj Batra , David Magee
IPC分类号： H04W88/08 , H04Q7/00
CPC分类号： H04W88/08
摘要： The present invention is directed to a time-switched preamble generator and method of generating a time-switched preamble for use with a multiple-input, multiple-output (MIMO) transmitter employing first and second transmit antennas. In one embodiment, the time-switched preamble generator includes an initial preamble formatter configured to provide a first preamble to the first transmit antenna and a second preamble to the second transmit antenna during an initial time interval. The time-switched preamble generator also includes a subsequent preamble formatter coupled to the initial preamble formatter and configured to provide the second preamble to the first transmit antenna and the first preamble to the second transmit antenna during a subsequent time interval.
摘要翻译：本发明涉及一种时间切换前导码生成器和用于与采用第一和第二发射天线的多输入多输出（MIMO）发射机一起使用的时间切换前同步码的方法。在一个实施例中，时间切换前导码生成器包括初始前同步码格式器，其被配置为在初始时间间隔期间向第一发射天线提供第一前同步码和第二前导码到第二发射天线。时间切换前导码生成器还包括后续前导码格式器，其耦合到初始前导码格式化器并且被配置为在随后的时间间隔期间向第一发射天线提供第二前同步码和第一前导码到第二发射天线。

3. 发明申请

US20050035885A1 Orthogonal preamble encoder, method of encoding orthogonal preambles and multiple-input, multiple-output communication system employing the same 有权
公开(公告)号：US20050035885A1
公开(公告)日：2005-02-17
申请号：US10639418
申请日：2003-08-11
申请人： Srinath Hosur , Anuj Batra , Srikanth Gummadi , David Magee
发明人： Srinath Hosur , Anuj Batra , Srikanth Gummadi , David 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.

4. 发明申请

US20060104393A1 Apparatus and method of detection for a packet-based wireless receiver employing multiple, concurrent transmitted streams 有权
标题翻译：采用多个并发传输流的基于分组的无线接收机的检测装置和方法
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。

5. 发明申请

US20050170831A1 Frequency switched preamble design to minimize channel estimation time in MIMO communication systems 有权
标题翻译：频率切换前导码设计，以最小化MIMO通信系统中的信道估计时间
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。

6. 发明申请

US20050169398A1 Scalable gain training generator, method of gain training and MIMO communication system employing the generator and method 有权
标题翻译：可扩展增益训练发生器，增益训练方法和采用发电机和方法的MIMO通信系统
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。

7. 发明申请

US20060104380A1 Time-switched preamble generation to enhance channel estimation signal-to-noise ratio in MIMO communication systems 审中-公开
标题翻译：时间切换前导码生成，以增强MIMO通信系统中的信道估计信噪比
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。

8. 发明申请

US20060072681A1 Scalable gain retraining generator, method of gain retraining and multiple-input, multiple-output communications system employing the generator or method 审中-公开
标题翻译：可扩展增益再培训发电机，增益再培训方法和多输入多输出通信系统采用发电机或方法
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。

9. 发明申请

US20050271174A1 Method of synchronization for packet based, OFDM wireless systems with multiple receive chains 有权
标题翻译：具有多个接收链的基于分组的OFDM无线系统的同步方法
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。

10. 发明申请

US20060034271A1 Packet detection system and method for packet-based wireless receivers having multiple receive chains 审中-公开
标题翻译：具有多个接收链的基于分组的无线接收机的分组检测系统和方法
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。

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