公开(公告)号：US07330501B2

公开(公告)日：2008-02-12

申请号：US10757926

申请日：2004-01-15

申请人： Jason A. Trachewsky ,  Alan Corry ,  Christopher J. Hansen

发明人： Jason A. Trachewsky ,  Alan Corry ,  Christopher J. Hansen

IPC分类号： H04B1/38

CPC分类号： H04L27/0014 ,  H04L2027/0016 ,  H04L2027/0024

摘要： A radio frequency integrated circuit includes a transmitter section, and a receiver section. The receiver section includes a low noise amplifier, down conversion module, an orthogonal-normalizing module, and a baseband processor. The low noise amplifier is operably coupled to amplify the inbound RF signals to produce amplified inbound signals. The down conversion module is operably coupled to convert the amplified inbound RF signals into baseband in-phase components and baseband quadrature components. The orthogonal normalizing module is operably coupled to obtain a 1st and 2nd coefficients that are based on at least one of power of the baseband in-phase components, power of the baseband quadrature components, and/or cross-correlation between the baseband in-phase component and baseband quadrature components. The orthogonal normalizing module then normalizes an orthogonal relationship between the in-phase components and quadrature components based on the 1st and 2nd coefficients to produce normalized in-phase components and normalized quadrature components.

摘要翻译： 射频集成电路包括发射机部分和接收机部分。 接收器部分包括低噪声放大器，下变频模块，正交归一化模块和基带处理器。 低噪声放大器可操作地耦合以放大入站RF信号以产生放大的入站信号。 下变频模块可操作地耦合以将放大的入站RF信号转换成基带同相分量和基带正交分量。 正交归一化模块可操作地耦合以获得基于基带同相分量的功率中的至少一个的第一和第二和第二系数， 基带正交分量和/或基带同相分量和基带正交分量之间的互相关。 然后，正交归一化模块基于第一和第二和第二系数对归一化的同相分量和正交分量之间的正交关系进行归一化，以产生归一化的同相分量并将其归一化 正交分量。

公开(公告)号：US07177662B2

公开(公告)日：2007-02-13

申请号：US10817541

申请日：2004-04-02

申请人： Jason A. Trachewsky ,  Alan Corry ,  Venkat Kodavati

发明人： Jason A. Trachewsky ,  Alan Corry ,  Venkat Kodavati

IPC分类号： H04M1/00

CPC分类号： H04B1/406

摘要： A multimode wireless communication includes a digital baseband processing module, an analog to digital converter module, a digital to analog converter module, a first radio section, and a second radio section. The digital baseband processing module is operably coupled to convert outbound data into outbound digital baseband signals and to convert inbound digital baseband signals into inbound data. The analog to digital converter module is operably coupled to convert inbound analog baseband signals into the inbound digital baseband signals. The digital to analog converter module is operably coupled to convert the outbound digital baseband signals into outbound analog baseband signals. The first radio section is operably coupled to convert the outbound analog baseband signals into first outbound radio frequency (RF) signals and to convert first inbound RF signals into the inbound analog baseband signals when the wireless communication device is in a first mode of operation. The second radio section is operably coupled to convert the outbound analog baseband signals into second outbound RF signals and to convert second inbound RF signals into the inbound analog baseband signals when the wireless communication device is in a second mode of operation.

摘要翻译： 多模无线通信包括数字基带处理模块，模数转换器模块，数模转换器模块，第一无线电部分和第二无线电部分。 数字基带处理模块可操作地耦合以将出站数据转换为出站数字基带信号，并将入站数字基带信号转换为入站数据。 模数转换器模块可操作地耦合以将入站模拟基带信号转换成入站数字基带信号。 数模转换器模块可操作地耦合以将出站数字基带信号转换为出站模拟基带信号。 第一无线电部分可操作地耦合以将出站模拟基带信号转换成第一出站射频（RF）信号，并且当无线通信设备处于第一操作模式时，将第一入站RF信号转换为入站模拟基带信号。 当无线通信设备处于第二操作模式时，第二无线电部分可操作地耦合以将出站模拟基带信号转换为第二出站RF信号并将第二入站RF信号转换为入站模拟基带信号。

公开(公告)号：US20110028182A1

公开(公告)日：2011-02-03

申请号：US12903776

申请日：2010-10-13

申请人： Jason A. Trachewsky ,  Alan Corry ,  Venkat Kodavati

发明人： Jason A. Trachewsky ,  Alan Corry ,  Venkat Kodavati

IPC分类号： H04M1/00

CPC分类号： H04B1/406

摘要： A multimode wireless communication device includes a first radio section operably to convert outbound analog baseband signals into first outbound RF signals and to convert first inbound RF signals into inbound analog baseband signals when the wireless communication device is in a first mode of operation and a second radio section that performs similar functions in a second mode of operation. A diplexer section includes a first diplexer for coupling to a first antenna, and a second diplexer for coupling to a second antenna, and that selectively couples the first radio section to one of the first antenna and the second antenna, and that selectively couples the second radio section to one of the first antenna and the second antenna. First and second T/R switches are coupled to the first and second diplexers and to respectively, to the first and second radio sections.

摘要翻译： 多模无线通信设备包括第一无线电部分，其可操作地将出站的模拟基带信号转换为第一出站RF信号，并且当无线通信设备处于第一操作模式时将第一入站RF信号转换为入站模拟基带信号， 在第二操作模式下执行类似功能的部分。 双工器部分包括用于耦合到第一天线的第一双工器和用于耦合到第二天线的第二双工器，并且将第一无线电部分选择性地耦合到第一天线和第二天线之一，并且选择性地将第二天线 无线电部分到第一天线和第二天线之一。 第一和第二T / R开关耦合到第一和第二双工器，并且分别耦合到第一和第二无线电部分。

公开(公告)号：US07535978B2

公开(公告)日：2009-05-19

申请号：US12020478

申请日：2008-01-25

申请人： Jason A. Trachewsky ,  Alan Corry

发明人： Jason A. Trachewsky ,  Alan Corry

IPC分类号： H04L27/06

CPC分类号： H04L27/2647 ,  H04L7/041 ,  H04L7/08

摘要： A method for accurate signal detection begins by receiving a radio frequency signal, which is then converted into baseband signals. The processing then continues by performing a normalized auto correlation on the down-converted baseband signal to produce a normalized auto correlation signal. The process continues by performing a periodic pattern detection on the down-converted baseband signal to produce a normalized detected periodic signal. The process then continues by comparing the normalized auto correlation value with an auto correlation threshold and by comparing the normalized detected periodic signal with a set of thresholds. When the normalized auto correlation value compares favorably with the auto correlation threshold and when the normalized detected periodic signal compares favorably with the set of thresholds, the down-converted baseband signal is indicated to be a valid signal.

摘要翻译： 用于准确信号检测的方法是通过接收射频信号开始的，然后将其转换为基带信号。 然后通过对下变频的基带信号执行归一化的自相关来继续处理，以产生归一化的自相关信号。 该过程通过对下变频的基带信号执行周期性模式检测以产生归一化的检测周期信号而继续。 然后，通过将归一化自相关值与自相关阈值进行比较并通过将归一化检测到的周期信号与一组阈值进行比较来继续该过程。 当归一化自相关值与自相关阈值相比较好时，并且当归一化检测到的周期信号与阈值集合相比较时，下转换的基带信号被指示为有效信号。

公开(公告)号：US07349499B2

公开(公告)日：2008-03-25

申请号：US10817542

申请日：2004-04-02

申请人： Jason A. Trachewsky ,  Alan Corry

发明人： Jason A. Trachewsky ,  Alan Corry

IPC分类号： H03D1/00

CPC分类号： H04B1/0475 ,  H04L7/041 ,  H04L7/08 ,  H04L27/2647

摘要： A method for accurate signal detection begins by receiving a radio frequency signal, which is then converted into baseband signals. The processing then continues by performing a normalized auto correlation on the down-converted baseband signal to produce a normalized auto correlation signal. The process continues by performing a periodic pattern detection on the down-converted baseband signal to produce a normalized detected periodic signal. The process then continues by comparing the normalized auto correlation value with an auto correlation threshold and by comparing the normalized detected periodic signal with a set of thresholds. When the normalized auto correlation value compares favorably with the auto correlation threshold and when the normalized detected periodic signal compares favorably with the set of thresholds, the down-converted baseband signal is indicated to be a valid signal.

摘要翻译： 用于准确信号检测的方法是通过接收射频信号开始的，然后将其转换为基带信号。 然后通过对下变频的基带信号执行归一化的自相关来继续处理，以产生归一化的自相关信号。 该过程通过对下变频的基带信号执行周期性模式检测以产生归一化的检测周期信号而继续。 然后，通过将归一化自相关值与自相关阈值进行比较并通过将归一化检测到的周期信号与一组阈值进行比较来继续该过程。 当归一化自相关值与自相关阈值相比较好时，并且当归一化检测到的周期信号与阈值集合相比较时，下转换的基带信号被指示为有效信号。

公开(公告)号：US07856245B2

公开(公告)日：2010-12-21

申请号：US11643170

申请日：2006-12-20

申请人： Jason A. Trachewsky ,  Alan Corry ,  Venkat Kodavati

发明人： Jason A. Trachewsky ,  Alan Corry ,  Venkat Kodavati

IPC分类号： H04M1/00

CPC分类号： H04B1/406

摘要： A multimode wireless communication device includes a first circuit having a digital baseband processing module to convert outbound data into outbound digital baseband signals and to convert inbound digital baseband signals into inbound data, an analog to digital converter module to convert inbound analog baseband signals into the inbound digital baseband signals, and a digital to analog converter module to convert the outbound digital baseband signals into outbound analog baseband signals. A second circuit includes a first radio section and a third circuit includes a second radio section. A diversity antenna arrangement includes a first antenna, a second antenna, a first diplexer coupled to the first antenna, and a second diplexer coupled to the second antenna, that selectively couples the first radio section to one of the first antenna and the second antenna, and that selectively couples the second radio section to one of the first antenna and the second antenna.

摘要翻译： 多模无线通信设备包括具有数字基带处理模块的第一电路，用于将出站数据转换为出站数字基带信号并将入站数字基带信号转换为入站数据;模数转换器模块，用于将入站模拟基带信号转换成入站 数字基带信号和数模转换器模块，将出站数字基带信号转换为出站模拟基带信号。 第二电路包括第一无线电部分，第三电路包括第二无线电部分。 分集天线装置包括第一天线，第二天线，耦合到第一天线的第一双工器和耦合到第二天线的第二双工器，其将第一无线电部分选择性地耦合到第一天线和第二天线之一， 并且将第二无线电部分选择性地耦合到第一天线和第二天线之一。

公开(公告)号：US08964895B2

公开(公告)日：2015-02-24

申请号：US13245362

申请日：2011-09-26

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： H04L27/36 ,  H04L1/00 ,  H04L1/06 ,  H04L25/03 ,  H04L27/26

CPC分类号： H04W4/18 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/0618 ,  H04L25/03866 ,  H04L27/2601 ,  H04W84/12 ,  H04W88/10

摘要： A wireless local area network (WLAN) transmitter includes a baseband processing module and a plurality of radio frequency (RF) transmitters. The processing module selects one of a plurality of modes of operation based on a mode selection signal. The processing module determines a number of transmit streams based on the mode selection signal. The processing of the data further continues by converting encoded data into streams of symbols in accordance with the number of transmit streams and the mode selection signal. A number of the plurality of RF transmitters are enabled based on the mode selection signal to convert a corresponding one of the streams of symbols into a corresponding RF signal such that a corresponding number of RF signals is produced.

摘要翻译： 无线局域网（WLAN）发射机包括基带处理模块和多个射频（RF）发射机。 处理模块基于模式选择信号选择多种操作模式中的一种。 处理模块基于模式选择信号确定多个发送流。 根据发送流的数量和模式选择信号，将编码数据转换为符号流，继续处理数据。 基于模式选择信号启用多个RF发射机的数量，以将符号流中的相应一个码流转换为对应的RF信号，从而产生相应数量的RF信号。

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。

公开(公告)号：US20130129000A1

公开(公告)日：2013-05-23

申请号：US13729881

申请日：2012-12-28

申请人： Matthew J. Fischer ,  Joonsuk Kim ,  Christopher J. Hansen ,  Jason A. Trachewsky

发明人： Matthew J. Fischer ,  Joonsuk Kim ,  Christopher J. Hansen ,  Jason A. Trachewsky

IPC分类号： H04W80/00

CPC分类号： H04W80/00 ,  H04B7/0421 ,  H04B7/0617 ,  H04B7/0628 ,  H04B7/0634 ,  H04L1/0026 ,  H04L1/0045 ,  H04L1/0068 ,  H04L1/06 ,  H04L27/2601

摘要： A method for feeding back transmitter beamforming information from a receiving wireless communication device to a transmitting wireless communication device includes a receiving wireless communication device receiving a preamble sequence from the transmitting wireless device. The receiving wireless device estimates a channel response based upon the preamble sequence and then determines an estimated transmitter beamforming unitary matrix based upon the channel response and a receiver beamforming unitary matrix. The receiving wireless device then decomposes the estimated transmitter beamforming unitary matrix to produce the transmitter beamforming information and then wirelessly sends the transmitter beamforming information to the transmitting wireless device.

摘要翻译： 将发射机波束形成信息从接收无线通信设备反馈到发射无线通信设备的方法包括从发射无线设备接收前同步码序列的接收无线通信设备。 接收无线设备基于前导序列估计信道响应，然后基于信道响应和接收机波束成形单位矩阵来确定估计的发射机波束成形单位矩阵。 接收无线设备然后分解估计的发射机波束成形单位矩阵以产生发射机波束形成信息，然后将发射机波束成形信息无线发送到发射无线设备。

公开(公告)号：US08351399B2

公开(公告)日：2013-01-08

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： 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。