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1. 发明授权

US08009759B2 Programmable transmitter 有权
标题翻译：可编程变送器
公开(公告)号：US08009759B2
公开(公告)日：2011-08-30
申请号：US12346367
申请日：2008-12-30
申请人： Joachim S. Hammerschmidt , Bruce E. Edwards , Venkat Kodavati , Rajendra Tushar Moorti , Ling Su , Jason A. Trachewsky , Andrew Wagner
发明人： Joachim S. Hammerschmidt , Bruce E. Edwards , Venkat Kodavati , Rajendra Tushar Moorti , Ling Su , Jason A. Trachewsky , Andrew Wagner
IPC分类号： H04L27/00
CPC分类号： H04W88/06 , H04B7/04
摘要： A programmable transmitter generates a frame in a frame format according to one of a plurality of operating modes using a frame structure table storing a respective frame format for each of the operating modes. The transmitter includes a frame structure engine that receives a mode selection signal indicative of a select operating mode, and accesses the frame structure table to determine the frame format of the select operating mode. The frame structure engine produces a control signal to a frame generator to control the generation of a frame in the frame format of the select operating mode.
摘要翻译：可编程发射机使用存储每种操作模式的相应帧格式的帧结构表，根据多种操作模式中的一种来生成帧格式的帧。发射机包括帧结构引擎，其接收指示选择操作模式的模式选择信号，并且访问帧结构表以确定选择操作模式的帧格式。帧结构引擎向帧发生器产生控制信号，以控制以选择操作模式的帧格式生成帧。

2. 发明授权

US07535972B2 Programmable transmitter 失效
标题翻译：可编程变送器
公开(公告)号：US07535972B2
公开(公告)日：2009-05-19
申请号：US11166808
申请日：2005-06-24
申请人： Joachim S. Hammerschmidt , Bruce E. Edwards , Venkat Kodavati , R. Tushar Moorti , Ling Su , Jason A. Trachewsky , Andrew Wagner
发明人： Joachim S. Hammerschmidt , Bruce E. Edwards , Venkat Kodavati , R. Tushar Moorti , Ling Su , Jason A. Trachewsky , Andrew Wagner
IPC分类号： H04L27/00
CPC分类号： H04W88/06 , H04B7/04
摘要： A programmable transmitter generates a frame in a frame format according to one of a plurality of operating modes using a frame structure table storing a respective frame format for each of the operating modes. The transmitter includes a frame structure engine that receives a mode selection signal indicative of a select operating mode, and accesses the frame structure table to determine the frame format of the select operating mode. The frame structure engine produces a control signal to a frame generator to control the generation of a frame in the frame format of the select operating mode.
摘要翻译：可编程发射机使用存储每种操作模式的相应帧格式的帧结构表，根据多种操作模式中的一种来生成帧格式的帧。发射机包括帧结构引擎，其接收指示选择操作模式的模式选择信号，并且访问帧结构表以确定选择操作模式的帧格式。帧结构引擎向帧发生器产生控制信号，以控制以选择操作模式的帧格式生成帧。

3. 发明授权

US07813374B2 Multiple protocol wireless communication baseband transceiver 失效
标题翻译：多协议无线通信基带收发器
公开(公告)号：US07813374B2
公开(公告)日：2010-10-12
申请号：US11433997
申请日：2006-05-15
申请人： Rajendra Tushar Moorti , Jason A. Trachewsky , Joachim S. Hammerschmidt , Ling Su
发明人： Rajendra Tushar Moorti , Jason A. Trachewsky , Joachim S. Hammerschmidt , Ling Su
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。

4. 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。

5. 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。

6. 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。

7. 发明授权

US07583758B2 Carrier detection applicable for SISO, MIMO, MISO, and SIMO communications 有权
标题翻译：载波检测适用于SISO，MIMO，MISO和SIMO通信
公开(公告)号：US07583758B2
公开(公告)日：2009-09-01
申请号：US11402571
申请日：2006-04-12
申请人： Rohit V. Gaikwad , Rajendra Tushar Moorti , Jason A. Trachewsky
发明人： Rohit V. Gaikwad , Rajendra Tushar Moorti , Jason A. Trachewsky
IPC分类号： H04L27/00 , H04L27/06
CPC分类号： H04L27/2657
摘要： Carrier detection applicable for SISO, MIMO, MISO, and SIMO communications. A novel approach is presented to perform carrier detection for a signal found in any of a wide variety of communication systems including single-input-multiple-output (SISO), multiple-input-multiple-output (MIMO), multiple-input-single-output (MISO) single-input-multiple-output (SISO), communication systems. This novel approach to performing carrier detection is more robust than those approaches existent in the art. By employing normalization with respect to power in determining a modified correlation function, there is less susceptibility to false detects. Also, this approach is quite robust to any circuitry DC offsets that may undesirably exist within a communication device that undergoes operational changes due to a variety of factors including environmental perturbations and/or changes in processing circuitry within the communication device (e.g., changes in gain control).
摘要翻译：载波检测适用于SISO，MIMO，MISO和SIMO通信。提出了一种新颖的方法来对在各种各样的通信系统中发现的信号执行载波检测，包括单输入多输出（SISO），多输入多输出（MIMO），多输入单 - 输出（MISO）单输入多输出（SISO），通信系统。执行载波检测的这种新颖的方法比本领域中存在的那些方法更加鲁棒。通过在确定修正的相关函数中使用关于功率的归一化，对错误检测的敏感性较小。此外，该方法对于由于各种因素（包括环境扰动和/或通信设备内的处理电路的变化）而经历操作改变的通信设备中可能不期望地存在的任何电路DC偏移是相当鲁棒的控制）。

8. 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。

9. 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。

10. 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。

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