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81. 发明授权

US08520669B2 High data throughput wireless local area network receiver 有权
公开(公告)号：US08520669B2
公开(公告)日：2013-08-27
申请号：US13689985
申请日：2012-11-30
申请人： Rajendra Tushar Moorti , Christopher J. Hansen , Jason A. Trachewsky
发明人： Rajendra Tushar Moorti , Christopher J. Hansen , Jason A. Trachewsky
IPC分类号： H04L12/66 , H04W4/00
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.

82. 发明申请

US20130137385A1 TRANSCEIVER WITH PLURAL SPACE HOPPING ARRAY ANTENNAS AND METHODS FOR USE THEREWITH 有权
标题翻译：具有多余空间阵列天线的收发器及其使用方法
公开(公告)号：US20130137385A1
公开(公告)日：2013-05-30
申请号：US13750177
申请日：2013-01-25
申请人： Saishankar Nandagopalan , Jeyhan Karaoguz , Jason A. Trachewsky , Vinko Erceg , Christopher J. Hansen , Matthew James Fischer , Murat Mese
发明人： Saishankar Nandagopalan , Jeyhan Karaoguz , Jason A. Trachewsky , Vinko Erceg , Christopher J. Hansen , Matthew James Fischer , Murat Mese
IPC分类号： H04B1/44
CPC分类号： H04B1/44 , H01Q3/30 , H01Q21/28
摘要： A wireless transceiver includes an antenna array that transmits an outbound RF signal containing outbound data to remote transceivers and that receives an inbound RF signal containing inbound data from the remote RF transceivers, wherein the antenna array is configurable based on a control signal. An antenna configuration controller generates the control signal to configure the antenna array to hop among a plurality of radiation patterns based on a hopping sequence. An RF transceiver section generates the outbound RF signal based on the outbound data and that generates the inbound data based on the inbound RF signal. In one configuration, a switching section selectively couples a selected one of the antennas in the array to the RF transceiver section, based on the control signal. In another configuration, the RF transceiver section includes an RF section for each antenna in the array.
摘要翻译：无线收发器包括天线阵列，其将包含出站数据的出站RF信号发送到远程收发器，并且接收包含来自远程RF收发器的入站数据的入站RF信号，其中天线阵列可基于控制信号进行配置。天线配置控制器基于跳频序列产生控制信号以配置天线阵列在多个辐射图案之间跳跃。 RF收发器部分基于出站数据生成出站RF信号，并且基于入站RF信号生成入站数据。在一种配置中，切换部分基于控制信号选择性地将阵列中的所选择的一个天线耦合到RF收发器部分。在另一种配置中，RF收发器部分包括用于阵列中的每个天线的RF部分。

83. 发明授权

US08385844B2 Transceiver with plural space hopping phased array antennas and methods for use therewith 有权
标题翻译：具有多个跳频相控阵天线的收发器及其使用方法
公开(公告)号：US08385844B2
公开(公告)日：2013-02-26
申请号：US13437349
申请日：2012-04-02
申请人： Saishankar Nandagopalan , Jeyhan Karaoguz , Jason A. Trachewsky , Vinko Erceg , Christopher J. Hansen , Matthew James Fischer , Murat Mese
发明人： Saishankar Nandagopalan , Jeyhan Karaoguz , Jason A. Trachewsky , Vinko Erceg , Christopher J. Hansen , Matthew James Fischer , Murat Mese
IPC分类号： H04B1/38 , H04B7/10 , H04B15/00
CPC分类号： H04B1/44 , H01Q3/30 , H01Q21/28
摘要： A wireless transceiver includes an antenna array that transmits an outbound RF signal containing outbound data to remote transceivers and that receives an inbound RF signal containing inbound data from the remote RF transceivers, wherein the antenna array is configurable based on a control signal. An antenna configuration controller generates the control signal to configure the antenna array to hop among a plurality of radiation patterns based on a hopping sequence. An RF transceiver section generates the outbound RF signal based on the outbound data and that generates the inbound data based on the inbound RF signal. In one configuration, a switching section selectively couples a selected one of the antennas in the array to the RF transceiver section, based on the control signal. In another configuration, the RF transceiver section includes an RF section for each antenna in the array.
摘要翻译：无线收发器包括天线阵列，其将包含出站数据的出站RF信号发送到远程收发器，并且接收包含来自远程RF收发器的入站数据的入站RF信号，其中天线阵列可基于控制信号进行配置。天线配置控制器基于跳频序列产生控制信号以配置天线阵列在多个辐射图案之间跳跃。 RF收发器部分基于出站数据生成出站RF信号，并且基于入站RF信号生成入站数据。在一种配置中，切换部分基于控制信号选择性地将阵列中的所选择的一个天线耦合到RF收发器部分。在另一种配置中，RF收发器部分包括用于阵列中的每个天线的RF部分。

84. 发明申请

US20120288024A1 ASYMMETRICAL MIMO WIRELESS COMMUNICATIONS 失效
标题翻译：不对称MIMO无线通信
公开(公告)号：US20120288024A1
公开(公告)日：2012-11-15
申请号：US13558985
申请日：2012-07-26
申请人： Christopher J. Hansen , Jason A. Trachewsky , Nambirajan Seshadri , Kelly Brian Cameron , Hau Thien Tran , Ba-Zhong Shen
发明人： Christopher J. Hansen , Jason A. Trachewsky , Nambirajan Seshadri , Kelly Brian Cameron , Hau Thien Tran , Ba-Zhong Shen
IPC分类号： H04B7/06
CPC分类号： H04B7/0613 , H04B7/0413
摘要： A method for asymmetrical MIMO wireless communication begins by determining a number of transmission antennas for the asymmetrical MIMO wireless communication. The method continues by determining a number of reception antennas for the asymmetrical MIMO wireless communication. The method continues by, when the number of transmission antennas exceeds the number of reception antennas, using spatial time block coding for the asymmetrical MIMO wireless communication. The method continues by, when the number of transmission antennas does not exceed the number of reception antennas, using spatial multiplexing for the asymmetrical MIMO wireless communication.
摘要翻译：一种用于非对称MIMO无线通信的方法是通过确定用于非对称MIMO无线通信的多个发送天线来开始的。该方法通过确定用于非对称MIMO无线通信的接收天线的数量来继续。当发送天线的数量超过接收天线的数量时，该方法继续使用用于非对称MIMO无线通信的空间时间块编码。当发送天线的数量不超过接收天线的数量时，该方法继续使用用于非对称MIMO无线通信的空间复用。

85. 发明申请

US20120177091A1 LONG TRAINING SEQUENCE FOR MIMO WLAN SYSTEMS 有权
标题翻译：用于MIMO WLAN系统的长训练序列
公开(公告)号：US20120177091A1
公开(公告)日：2012-07-12
申请号：US13423418
申请日：2012-03-19
申请人： Jason A. Trachewsky , R. Tushar Moorti , Christopher J. Hansen
发明人： Jason A. Trachewsky , R. Tushar Moorti , Christopher J. Hansen
IPC分类号： H04B7/02 , H04B1/38 , H04L27/04
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.
摘要翻译：一种用于配置多输入多输出（MIMO）无线通信的方法开始于为多个发射天线生成多个前同步码。多个前导码中的每一个包括传统发送速率的载波检测序列，以传统发送速率发声的第一信道，传统发送速率的信号字段和MIMO发送速率的Z-1信道探测，其中L 对应于多个通道探测。该方法通过经由多个发射天线同时发送多个前导码来继续。

86. 发明授权

US08170504B2 Modified preamble for programmable transmitter 有权
标题翻译：可编程发射机的修改前导码
公开(公告)号：US08170504B2
公开(公告)日：2012-05-01
申请号：US13116227
申请日：2011-05-26
申请人： Jason A. Trachewsky , Rajendra Tushar Moorti , Christopher J. Hansen
发明人： Jason A. Trachewsky , Rajendra Tushar Moorti , Christopher J. Hansen
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。

87. 发明授权

US07974591B2 Modified preamble for programmable transmitter 有权
标题翻译：可编程发射机的修改前导码
公开(公告)号：US07974591B2
公开(公告)日：2011-07-05
申请号：US12498351
申请日：2009-07-06
申请人： Jason A. Trachewsky , Rajendra Tushar Moorti , Christopher J. Hansen
发明人： Jason A. Trachewsky , Rajendra Tushar Moorti , Christopher J. Hansen
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。

88. 发明授权

US07826547B2 Mixed mode preamble for MIMO wireless communications 有权
标题翻译：用于MIMO无线通信的混合模式前导码
公开(公告)号：US07826547B2
公开(公告)日：2010-11-02
申请号：US11079962
申请日：2005-03-15
申请人： Christopher J. Hansen , Jason A. Trachewsky , R. Tushar Moorti , Christopher Young
发明人： Christopher J. Hansen , Jason A. Trachewsky , R. Tushar Moorti , Christopher Young
IPC分类号： H04B7/02
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。

89. 发明授权

US07746886B2 Asymmetrical MIMO wireless communications 有权
标题翻译：不对称MIMO无线通信
公开(公告)号：US07746886B2
公开(公告)日：2010-06-29
申请号：US10979368
申请日：2004-11-01
申请人： Christopher J. Hansen , Jason A. Trachewsky , Nambirajan Seshadri , Kelly Brian Cameron , Hau Thien Tran , Ba-Zhong Shen
发明人： Christopher J. Hansen , Jason A. Trachewsky , Nambirajan Seshadri , Kelly Brian Cameron , Hau Thien Tran , Ba-Zhong Shen
IPC分类号： H04W76/00
CPC分类号： H04B7/0613 , H04B7/0413
摘要： A method for asymmetrical MIMO wireless communication begins by determining a number of transmission antennas for the asymmetrical MIMO wireless communication. The method continues by determining a number of reception antennas for the asymmetrical MIMO wireless communication. The method continues by, when the number of transmission antennas exceeds the number of reception antennas, using spatial time block coding for the asymmetrical MIMO wireless communication. The method continues by, when the number of transmission antennas does not exceed the number of reception antennas, using spatial multiplexing for the asymmetrical MIMO wireless communication.
摘要翻译：一种用于非对称MIMO无线通信的方法是通过确定用于非对称MIMO无线通信的多个发送天线来开始的。该方法通过确定用于非对称MIMO无线通信的接收天线的数量来继续。当发送天线的数量超过接收天线的数量时，该方法继续使用用于非对称MIMO无线通信的空间时间块编码。当发送天线的数量不超过接收天线的数量时，该方法继续使用用于非对称MIMO无线通信的空间复用。

90. 发明授权

US07555053B2 Long training sequence for MIMO WLAN systems 有权
公开(公告)号：US07555053B2
公开(公告)日：2009-06-30
申请号：US10929313
申请日：2004-08-30
申请人： Jason A. Trachewsky , R. Tushar Moorti , Christopher J. Hansen
发明人： Jason A. Trachewsky , R. Tushar Moorti , Christopher J. Hansen
IPC分类号： H04B7/02
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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