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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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公开(公告)号：US20100266064A1
公开(公告)日：2010-10-21
申请号：US12828561
申请日：2010-07-01
申请人： Christopher J. Hansen , Jason A. Trachewsky , R. Tushar Moorti , Matthew J. Fischer , Christopher Young
发明人： Christopher J. Hansen , Jason A. Trachewsky , R. Tushar Moorti , Matthew J. Fischer , Christopher Young
IPC分类号： H04L1/02
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：US20090207827A1
公开(公告)日：2009-08-20
申请号：US12426911
申请日：2009-04-20
IPC分类号： H04W84/12
CPC分类号： H04W24/02 , H04B1/38 , H04L5/0023 , H04L5/0048 , H04L27/2605 , H04L27/2647 , H04W24/00 , H04W28/06 , H04W28/18 , H04W72/085 , H04W84/12 , Y10S370/901 , Y10S370/908
摘要： A method for receiving a frame in a high data throughput wireless local area network begins by receiving a preamble of the frame via a channel in accordance with a default receiver filter mask. The processing continues by validating the preamble. The processing continues by, when the preamble is validated, interpreting the preamble to determine a high data throughput channel configuration. The processing continues by reconfiguring the default receiver filter mask in accordance with the high data throughput channel configuration to produce a reconfigured receiver filter mask. The processing continues by receiving a data segment of the frame in accordance with the reconfigured receiver filter mask.
摘要翻译： 用于在高数据吞吐量无线局域网中接收帧的方法通过根据默认接收机滤波器掩码经由信道接收帧的前导码开始。 该处理继续通过验证前导码。 当前同步码被验证时，处理继续解释前导码以确定高数据吞吐量信道配置。 该处理继续通过根据高数据吞吐量信道配置重新配置默认接收机滤波器掩码以产生重新配置的接收机滤波器掩码。 该处理通过根据重新配置的接收机滤波器掩码接收帧的数据段而继续。
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公开(公告)号：US20080310351A1
公开(公告)日：2008-12-18
申请号：US12173796
申请日：2008-07-15
申请人： Christopher J. Hansen , Jason A. Trachewsky , R. Tushar Moorti , Matthew J. Fischer , Christopher Young
发明人： Christopher J. Hansen , Jason A. Trachewsky , R. Tushar Moorti , Matthew J. Fischer , Christopher Young
IPC分类号： H04Q7/00
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 of the MIMO wireless communication, generating a carrier detect field, wherein, from transmit antenna to transmit antenna, the carrier detect field is cyclically shifted. The method continues by, for a first grouping of the transmit antennas of the MIMO wireless communication: generating a first guard interval following the carrier detect field; and generating at least one channel sounding field, wherein, from transmit antenna to transmit antenna in the first grouping, the at least one channel sounding field is cyclically shifted, and wherein the at least one channel sounding field follows the first guard interval. The method continues by, when the MIMO wireless communication includes more than the first grouping of the transmit antennas, for another grouping of the transmit antennas: generating at least one other channel sounding field, wherein, from transmit antenna to transmit antenna in the another grouping, the at least one other channel sounding field is cyclically shifted, and wherein the at least one other channel sounding field follows the at least one channel sounding field; and generating the first guard interval prior to the at least one other channel sounding field.
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，针对MIMO无线通信的每个发射天线开始，生成载波检测场，其中，从发射天线到发射天线，载波 检测场循环移位。 对于MIMO无线通信的发射天线的第一组，该方法继续：产生载波检测域之后的第一保护间隔; 以及产生至少一个信道探测场，其中，从所述第一分组中的发射天线到所述发射天线，所述至少一个信道探测场被循环移位，并且其中所述至少一个信道探测场跟随所述第一保护间隔。 当MIMO无线通信包括多于发射天线的第一组合时，该方法继续用于发射天线的另一组：产生至少一个其它信道探测场，其中从另一组中的发射天线到发射天线 ，所述至少一个其它信道探测场被循环移位，并且其中所述至少一个其它信道探测场跟随所述至少一个信道探测场; 以及在所述至少一个其它信道探测场之前产生所述第一保护间隔。
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公开(公告)号：US08548087B2
公开(公告)日：2013-10-01
申请号：US13423418
申请日：2012-03-19
CPC分类号： H04B7/0613
摘要： A method for configuring a multiple input multiple output (MIMO) wireless communication begins by generating a plurality of preambles for a plurality of transmit antennas. Each of the plurality of preambles includes a carrier detection sequence at a legacy transmit rate, a first channel sounding at the legacy transmit rate, a signal field at the legacy transmit rate, and Z−1 channel soundings at a MIMO transmit rate, where L corresponds to a number of channel soundings. The method continues by simultaneously transmitting the plurality of preambles via the plurality of transmit antennas.
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公开(公告)号：US08406204B2
公开(公告)日：2013-03-26
申请号：US11825868
申请日：2007-07-10
IPC分类号： H04J3/00
CPC分类号： H04W16/14 , H04L5/0023 , H04L5/0048 , H04L25/0226 , H04L27/2613 , H04W24/00 , H04W84/12 , H04W88/06
摘要： A method for generating a preamble of a frame for a wide-bandwidth channel wireless communication begins by generating a legacy carrier detect field. The method continues by generating a channel sounding field, wherein the channel sounding field includes a plurality of tones within the wide-bandwidth channel, wherein a first set of the plurality of tones corresponds to tones of a legacy channel sounding field. The method continues by generating a legacy signal field, wherein, in time, the legacy signal field follows the channel sounding field, which follows the legacy carrier detect field.
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公开(公告)号：US08363642B2
公开(公告)日：2013-01-29
申请号：US12426911
申请日：2009-04-20
CPC分类号： H04W24/02 , H04B1/38 , H04L5/0023 , H04L5/0048 , H04L27/2605 , H04L27/2647 , H04W24/00 , H04W28/06 , H04W28/18 , H04W72/085 , H04W84/12 , Y10S370/901 , Y10S370/908
摘要： A method for receiving a frame in a high data throughput wireless local area network begins by receiving a preamble of the frame via a channel in accordance with a default receiver filter mask. The processing continues by validating the preamble. The processing continues by, when the preamble is validated, interpreting the preamble to determine a high data throughput channel configuration. The processing continues by reconfiguring the default receiver filter mask in accordance with the high data throughput channel configuration to produce a reconfigured receiver filter mask. The processing continues by receiving a data segment of the frame in accordance with the reconfigured receiver filter mask.
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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：US07991009B2
公开(公告)日：2011-08-02
申请号：US12173796
申请日：2008-07-15
申请人： Christopher J. Hansen , Jason A. Trachewsky , R. Tushar Moorti , Matthew J. Fischer , Christopher Young
发明人： Christopher J. Hansen , Jason A. Trachewsky , R. Tushar Moorti , Matthew J. Fischer , Christopher Young
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 of the MIMO wireless communication, generating a carrier detect field, wherein, from transmit antenna to transmit antenna, the carrier detect field is cyclically shifted. The method continues by, for a first grouping of the transmit antennas of the MIMO wireless communication: generating a first guard interval following the carrier detect field; and generating at least one channel sounding field, wherein, from transmit antenna to transmit antenna in the first grouping, the at least one channel sounding field is cyclically shifted, and wherein the at least one channel sounding field follows the first guard interval. The method continues by, when the MIMO wireless communication includes more than the first grouping of the transmit antennas, for another grouping of the transmit antennas: generating at least one other channel sounding field, wherein, from transmit antenna to transmit antenna in the another grouping, the at least one other channel sounding field is cyclically shifted, and wherein the at least one other channel sounding field follows the at least one channel sounding field; and generating the first guard interval prior to the at least one other channel sounding field.
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，针对MIMO无线通信的每个发射天线开始，生成载波检测场，其中，从发射天线到发射天线，载波 检测场循环移位。 对于MIMO无线通信的发射天线的第一组，该方法继续：产生载波检测域之后的第一保护间隔; 以及产生至少一个信道探测场，其中，从所述第一组中的发射天线到所述发射天线，所述至少一个信道探测场被循环移位，并且其中所述至少一个信道探测场跟随所述第一保护间隔。 当MIMO无线通信包括多于发射天线的第一组合时，该方法继续用于发射天线的另一组：产生至少一个其它信道探测场，其中从另一组中的发射天线到发射天线 ，所述至少一个其它信道探测场被循环移位，并且其中所述至少一个其它信道探测场跟随所述至少一个信道探测场; 以及在所述至少一个其它信道探测场之前产生所述第一保护间隔。
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公开(公告)号：US20110044395A1
公开(公告)日：2011-02-24
申请号：US12916976
申请日：2010-11-01
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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