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1. 发明授权

US08891642B2 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：US08891642B2
公开(公告)日：2014-11-18
申请号：US13594203
申请日：2012-08-24
申请人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Christopher Young
发明人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Christopher Young
IPC分类号： H04L27/28 , H04B7/06
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。

2. 发明授权

US08284651B2 Preamble formats for MIMO wireless communications 有权
标题翻译：用于MIMO无线通信的前导格式
公开(公告)号：US08284651B2
公开(公告)日：2012-10-09
申请号：US13192964
申请日：2011-07-28
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： H04J3/24 , H04J11/00 , H04W4/00 , H03C7/02 , H04B1/00
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, generating a carrier detect field. The method continues by, for a first grouping of the transmit antennas, generating a first guard interval following the carrier detect field; and generating 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，该方法继续生成载波检测场之后的第一保护间隔; 并产生至少一个声道探测场。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。

3. 发明授权

US08576695B2 Preamble formats for MIMO wireless communications 有权
标题翻译：用于MIMO无线通信的前导格式
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。

4. 发明授权

US08284867B2 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：US08284867B2
公开(公告)日：2012-10-09
申请号：US13239301
申请日：2011-09-21
申请人： Jason A. Trachewsky , Rajendra Tushar Moorti , Christopher Young , Christopher J. Hansen
发明人： Jason A. Trachewsky , Rajendra Tushar Moorti , Christopher Young , Christopher J. Hansen
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。

5. 发明授权

US08031806B2 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：US08031806B2
公开(公告)日：2011-10-04
申请号：US12916976
申请日：2010-11-01
申请人： Jason A. Trachewsky , Rajendra Tushar Moorti , Christopher Young , Christopher J. Hansen
发明人： Jason A. Trachewsky , Rajendra Tushar Moorti , Christopher Young , Christopher J. Hansen
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。

6. 发明授权

US07773565B2 MIMO wireless communication greenfield preamble formats 失效
标题翻译： MIMO无线通信绿田前置码格式
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。

7. 发明授权

US07590429B2 RF transceiver configuring for a MIMO communication 失效
标题翻译： RF收发器配置用于MIMO通信
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
IPC分类号： H04B1/38 , H04M1/00
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。

8. 发明授权

US09344535B2 Multiple protocol wireless communications in a WLAN 有权
标题翻译： WLAN中的多协议无线通信
公开(公告)号：US09344535B2
公开(公告)日：2016-05-17
申请号：US12711225
申请日：2010-02-23
申请人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Matthew James Fischer
发明人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Matthew James Fischer
IPC分类号： H04L29/06 , H04W80/00 , H04W84/12
CPC分类号： H04L69/18 , H04L69/24 , H04W80/00 , H04W84/12
摘要： A method for multiple protocol wireless communications begins by determining protocols of wireless communication devices within a proximal region. The method then continues by determining whether the protocols of the wireless communication devices within the proximal region are of a like protocol. The method continues by, when the protocols of the wireless communication devices within the proximal region are not of a like protocol, selecting a protocol of the protocols of the wireless communication devices within the proximal region based on a protocol ordering to produce a selected protocol. The method continues by utilizing the selected protocol by the wireless communication devices within the proximal region to set up a wireless communication within the proximal region.
摘要翻译：用于多协议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。该方法然后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。当近端区域内的无线通信设备的协议不是类似的协议时，该方法继续进行，基于协议排序来选择在近端区域内的无线通信设备的协议的协议以产生所选择的协议。所述方法通过利用所述近端区域内的无线通信设备利用所选择的协议来建立所述近端区域内的无线通信。

9. 发明申请

US20110228875A1 MODIFIED PREAMBLE FOR PROGRAMMABLE TRANSMITTER 有权
标题翻译：可编程发射机的修改前缀
公开(公告)号：US20110228875A1
公开(公告)日：2011-09-22
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： 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。

10. 发明授权

US08548087B2 Long training sequence for MIMO WLAN systems 有权
公开(公告)号：US08548087B2
公开(公告)日：2013-10-01
申请号：US13423418
申请日：2012-03-19
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： H04B7/02 , H04L1/02
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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