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公开(公告)号：US08031806B2
公开(公告)日：2011-10-04
申请号：US12916976
申请日：2010-11-01
IPC分类号： H04L27/00
CPC分类号： H04B7/0613
摘要： A preamble of a frame for a multiple input multiple output (MIMO) wireless communication for a first transmit antenna of the MIMO communication includes a legacy preamble portion in accordance with a legacy wireless communication protocol. The preamble of the frame for the MIMO wireless communication for the first transmit antenna also includes a current protocol preamble portion in accordance with a protocol of the MIMO wireless communication. The preamble of a frame for at least a second antenna of the MIMO communication includes a cyclically shifted legacy preamble portion for the frame. The preamble of the frame for the MIMO wireless communication for the second transmit antenna also includes a second current protocol preamble portion in accordance with a protocol of the MIMO wireless communication.
摘要翻译： 用于MIMO通信的第一发射天线的多输入多输出（MIMO）无线通信的帧的前导码包括根据传统无线通信协议的传统前导码部分。 用于第一发射天线的MIMO无线通信的帧的前导码还包括根据MIMO无线通信的协议的当前协议前同步码部分。 用于MIMO通信的至少第二天线的帧的前导码包括用于该帧的循环移位的传统前同步码部分。 用于第二发射天线的MIMO无线通信的帧的前导码还包括根据MIMO无线通信的协议的第二当前协议前同步码部分。
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公开(公告)号：US07813374B2
公开(公告)日：2010-10-12
申请号：US11433997
申请日：2006-05-15
IPC分类号： H04J3/22
CPC分类号： H04L1/0068 , H04L1/0001 , H04L1/0041 , H04L1/0054 , H04L1/0071 , H04L1/0083
摘要： A multi-protocol wireless communication baseband transceiver includes a baseband transmit processing module and a baseband receive processing module. The baseband transmit processing module includes an encoding module, an interleaving module, a plurality of symbol mapping modules, a plurality of domain conversion modules, a plurality of cyclic prefix modules, a plurality of compensation modules, and a control module that is operably coupled to produce preamble set up information and payload set up information based on a mode of a plurality of protocol modes. The baseband receive processing module includes a plurality of receive compensation modules, a plurality of cyclic prefix removal modules, a plurality of receive domain conversion modules, an equalizing module, a plurality of demapping modules, a deinterleaving module, a decoding module, and a receive control module that is operably coupled to determine the mode from the plurality of protocol modes and the compensation control signals based on the at least one compensated stream of symbols.
摘要翻译： 多协议无线通信基带收发器包括基带发射处理模块和基带接收处理模块。 基带发送处理模块包括编码模块，交织模块，多个符号映射模块，多个域转换模块，多个循环前缀模块，多个补偿模块以及可操作地耦合到 基于多个协议模式的模式产生前导码建立信息和有效负载建立信息。 基带接收处理模块包括多个接收补偿模块，多个循环前缀去除模块，多个接收域转换模块，均衡模块，多个解映射模块，解交织模块，解码模块和接收器 控制模块，其可操作地耦合以基于所述至少一个经补偿的符号流来确定来自所述多个协议模式的模式和所述补偿控制信号。
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公开(公告)号：US07773565B2
公开(公告)日：2010-08-10
申请号：US11825869
申请日：2007-07-10
申请人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Matthew James Fischer , Christopher Young
发明人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Matthew James Fischer , Christopher Young
IPC分类号： H04Q7/00
CPC分类号： H04W72/044 , H04L1/0001 , H04L1/0002 , H04L1/0003 , H04L1/06 , H04L1/1867 , H04L25/0226 , H04L25/0228 , H04L27/2613 , H04W84/12
摘要： A method for multiple input multiple output wireless communication begins by determining protocols of wireless communication devices within a proximal region. The method continues by determining whether the protocols of the wireless communication devices within the proximal region are of a like protocol. The method continues by determining the number of transmit antennas. The method continues, when the protocols of the wireless communication devices within the proximal region are of the like protocol, formatting a preamble of a frame of the wireless communication utilizing at least one of cyclic shifting of symbols, cyclic shifting of tones, sparse tone allocation, and sparse symbol allocation based on the number of transmit antennas.
摘要翻译： 多输入多输出无线通信的方法通过确定近端区域内的无线通信设备的协议来开始。 该方法通过确定近端区域内的无线通信设备的协议是否具有类似协议来继续。 该方法通过确定发射天线的数量继续。 该方法继续，当近端区域内的无线通信设备的协议类似协议时，利用符号的循环移位，音调的循环移位，稀疏音调配置中的至少一个来格式化无线通信的帧的前导码 ，以及基于发射天线数量的稀疏符号分配。
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公开(公告)号：US07643578B2
公开(公告)日：2010-01-05
申请号：US11364637
申请日：2006-02-28
IPC分类号： H03D3/00
CPC分类号： H04L27/2657 , H04L1/0618 , H04L27/2679 , H04L27/2695
摘要： Angle estimation for modulated signal. A novel compensation technique is presented by which angle estimation may be performed for a modulated signal. More specifically, the angle between a constellation corresponding to a received signal and a constellation corresponding to a received signal may be very efficiently estimated using any one of the possible embodiments corresponding to various aspects of the invention. After this angle has been estimated, the received signal or the expected constellation may be rotated (or de-rotated) to compensate for this angular difference. In doing so, better estimates of the information bits that are demodulated and decoded from the received signal may be made. This approach may be implemented and adapted to any of a wide variety of communication systems including, but not limited to, single-input-multiple-output (SISO), single-input-multiple-output (SIMO), multiple-input-single-output (MISO), multiple-input-multiple-output (MIMO), and even space-time block code (STBC) communication systems or other communication systems.
摘要翻译： 调制信号的角度估计。 提出了一种新颖的补偿技术，可以对调制信号进行角度估计。 更具体地，可以使用对应于本发明的各个方面的任何一个可能的实施例来非常有效地估计对应于接收信号的星座与对应于接收信号的星座之间的角度。 在估计该角度之后，接收信号或预期星座可以被旋转（或去旋转）以补偿该角度差。 在这样做时，可以对从接收信号进行解调和解码的信息比特的更好估计。 这种方法可以被实现和适用于各种通信系统中的任何一种，包括但不限于单输入多输出（SISO），单输入多输出（SIMO），多输入单 输出（MISO），多输入多输出（MIMO），甚至空时块码（STBC）通信系统或其他通信系统。
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公开(公告)号：US07590429B2
公开(公告)日：2009-09-15
申请号：US11800547
申请日：2007-05-07
申请人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Matthew James Fischer , Christopher Young
发明人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Matthew James Fischer , Christopher Young
CPC分类号： H04B7/0613
摘要： An RF transceiver includes a baseband processing module, a transmitter section, and a receiver section. The baseband processing module convert outbound data into a plurality of outbound symbol streams, wherein each of the plurality of outbound symbol streams is outputted as one or more frames, wherein a frame of the one or more frames includes a setup portion and a data portion, wherein the set up portion includes at least one of a training sequence field and a signal field, and wherein the set up portion is formatted in accordance with one of a plurality of protocols. The baseband processing module further converts a plurality of inbound symbol streams into inbound data. The transmitter section converts the plurality of the outbound symbol streams into a plurality of outbound RF signals. The receiver section converts a plurality of inbound RF signals into the plurality of inbound symbol streams.
摘要翻译： RF收发器包括基带处理模块，发送器部分和接收器部分。 基带处理模块将出站数据转换为多个出站符号流，其中多个出站符号流中的每一个作为一个或多个帧输出，其中一个或多个帧的帧包括建立部分和数据部分， 其中所述设置部分包括训练序列字段和信号字段中的至少一个，并且其中所述设置部分根据多个协议之一进行格式化。 基带处理模块还将多个入站符号流转换成入站数据。 发射机部分将多个出站符号流转换成多个出站RF信号。 接收机部分将多个入站RF信号转换成多个入站符号流。
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公开(公告)号：US07558537B2
公开(公告)日：2009-07-07
申请号：US11403094
申请日：2006-04-11
IPC分类号： H04B1/04
CPC分类号： H04L27/2613 , H04L1/0002 , H04L1/0025 , H04L1/06
摘要： A programmable transmitter generates a frame preamble to train a receiver with respect to a communication link format that corresponds to a transmission mode wherein the transmission mode may comprise transmitting the communication link over one or more antennas. Generally, the invention includes generating a preamble with an arrangement that depends upon whether a Greenfield (high data rate) or mixed mode transmission is to occur and that depends upon a number of spatial streams that are to be generated. One format for high data rate transmission includes a short training sequence, a long training sequence and a signal field. The mixed mode transmission further includes a legacy prefix.
摘要翻译： 可编程发射机产生帧前同步码，以针对对应于传输模式的通信链路格式来训练接收机，其中传输模式可以包括通过一个或多个天线发射通信链路。 通常，本发明包括生成具有取决于是否要发生绿地（高数据速率）或混合模式传输并且取决于要生成的空间流的数量的布置的前导码。 用于高数据速率传输的一种格式包括短训练序列，长训练序列和信号场。 混合模式传输还包括传统前缀。
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37.发明授权Method and system for a new packet preamble for wideband wireless local area network (LAN) systems 有权用于宽带无线局域网（LAN）系统的新分组前导码的方法和系统公开(公告)号：US07515581B2
公开(公告)日：2009-04-07
申请号：US11050505
申请日：2005-02-03
IPC分类号： H04J3/06
CPC分类号： H04L27/2613 , H04L7/041 , H04L27/2656
摘要： Methods and systems for processing a packet are disclosed herein. Aspects of the method may comprise replicating at least one component of a legacy preamble synchronization symbol to generate a plurality of replicated components of a legacy preamble synchronization symbol. A portion of the generated plurality of replicated components of a legacy preamble synchronization symbol may be grouped and scaled to at least one wide-bandwidth synchronization symbol. A wide-bandwidth preamble may be generated utilizing the wide-bandwidth synchronization symbol. The replicated component of the legacy preamble synchronization symbol may comprise a time domain component and/or a frequency domain component. The time domain component may comprise at least one modulated symbol and the frequency domain component may comprise at least one tone. The grouped generated plurality of replicated components of a legacy preamble synchronization symbol may be scaled with a scaling mask to generate the wide-bandwidth synchronization symbol.
摘要翻译： 本文公开了用于处理分组的方法和系统。 该方法的方面可以包括复制传统前同步码同步符号的至少一个分量以生成传统前同步码同步符号的多个复制分量。 可以将传统前导码同步符号的生成的多个复制分量的一部分分组并缩放至至少一个宽带同步符号。 可以利用宽带同步符号来生成宽带宽前导码。 传统前同步符号的复制分量可以包括时域分量和/或频域分量。 时域分量可以包括至少一个调制符号，并且频域分量可以包括至少一个音调。 传统前导码同步符号的分组生成的多个复制分量可以用缩放掩码来缩放以产生宽带同步符号。
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公开(公告)号：US08576695B2
公开(公告)日：2013-11-05
申请号：US13593745
申请日：2012-08-24
申请人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Matthew James Fischer , Christopher Young
发明人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Matthew James Fischer , Christopher Young
IPC分类号： H04J3/06
CPC分类号： H04B7/0667
摘要： A method for generating a preamble of a frame for a multiple input multiple output (MIMO) wireless communication begins by, for each transmit antenna, generating a carrier detect field. The method continues by, for a first grouping of the transmit antennas, generating a first guard interval, and at least one channel sounding field. Continuing, the method applies cyclical shift prior to transmission via the first grouping of the transmit antennas. When the MIMO wireless communication includes more than the first grouping of the transmit antennas, for another grouping of the transmit antennas. For the another grouping of the transmit antennas, generating at least one other channel sounding field. The method proceeds by generating the first guard interval prior to the at least one other channel sounding field, and applying another cyclical shift prior to transmission via the another grouping of the transmit antennas.
摘要翻译： 用于生成多输入多输出（MIMO）无线通信的帧的前同步码的方法由每个发射天线开始，生成载波检测场。 对于发射天线的第一组，产生第一保护间隔和至少一个信道探测场，继续该方法。 继续地，该方法在通过发射天线的第一组发射之前应用周期性移位。 当MIMO无线通信包括多于发射天线的第一组时，对于另一组发射天线。 对于发射天线的另一组，产生至少一个其它信道探测场。 该方法通过在至少一个其它信道探测场之前产生第一保护间隔，并且在经由另一组发射天线的传输之前应用另一个循环移位来进行。
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公开(公告)号：US08284867B2
公开(公告)日：2012-10-09
申请号：US13239301
申请日：2011-09-21
IPC分类号： H04L27/00
CPC分类号： H04B7/0613
摘要： A preamble of a frame for a multiple input multiple output (MIMO) wireless communication for a first transmit antenna of the MIMO communication includes a legacy preamble portion in accordance with a legacy wireless communication protocol. The preamble of the frame for the MIMO wireless communication for the first transmit antenna also includes a current protocol preamble portion in accordance with a protocol of the MIMO wireless communication. The preamble of a frame for at least a second antenna of the MIMO communication includes a cyclically shifted legacy preamble portion for the frame. The preamble of the frame for the MIMO wireless communication for the second transmit antenna also includes a second current protocol preamble portion in accordance with a protocol of the MIMO wireless communication.
摘要翻译： 用于MIMO通信的第一发射天线的多输入多输出（MIMO）无线通信的帧的前导码包括根据传统无线通信协议的传统前导码部分。 用于第一发射天线的MIMO无线通信的帧的前导码还包括根据MIMO无线通信的协议的当前协议前同步码部分。 用于MIMO通信的至少第二天线的帧的前导码包括用于该帧的循环移位的传统前同步码部分。 用于第二发射天线的MIMO无线通信的帧的前导码还包括根据MIMO无线通信的协议的第二当前协议前同步码部分。
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公开(公告)号：US20110228875A1
公开(公告)日：2011-09-22
申请号：US13116227
申请日：2011-05-26
IPC分类号： H04L27/00
CPC分类号： H04L27/2613 , H04L1/0002 , H04L1/0025 , H04L1/06
摘要： A programmable transmitter generates a frame preamble to train a receiver with respect to a communication link format that corresponds to a transmission mode wherein the transmission mode may comprise transmitting the communication link over one or more antennas. Generally, the invention includes generating a preamble with an arrangement that depends upon whether a Greenfield (high data rate) or mixed mode transmission is to occur and that depends upon a number of spatial streams that are to be generated. One format for high data rate transmission includes a short training sequence, a long training sequence and a signal field. The mixed mode transmission further includes a legacy prefix.
摘要翻译： 可编程发射机产生帧前同步码，以针对对应于传输模式的通信链路格式来训练接收机，其中传输模式可以包括通过一个或多个天线发射通信链路。 通常，本发明包括生成具有取决于是否要发生绿地（高数据速率）或混合模式传输并且取决于要生成的空间流的数量的布置的前导码。 用于高数据速率传输的一种格式包括短训练序列，长训练序列和信号场。 混合模式传输还包括传统前缀。
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