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1. 发明授权

US08798202B2 Method and apparatus using sounding PPDUs to provide range extension to IEEE 802.11n signals 有权
标题翻译：使用声音PPDU的IEEE 802.11n信号范围扩展的方法和装置
公开(公告)号：US08798202B2
公开(公告)日：2014-08-05
申请号：US12615860
申请日：2009-11-10
申请人： Stephanie Rouquette-Leveil , Marc Bernard De Courville , Patrick Labbe
发明人： Stephanie Rouquette-Leveil , Marc Bernard De Courville , Patrick Labbe
IPC分类号： H04L27/00 , H04L1/06
CPC分类号： H04L1/06 , H04B7/0671 , H04L1/0618 , H04L25/0204 , H04L25/022 , H04L25/0228
摘要： A wireless transmitter includes a stream parser for generating a plurality of spatial streams from a digital signal and a space time block coder (STBC) for mapping each of the spatial streams to a plurality of space-time streams that each include data and a preamble for estimating a channel transfer function. The transmitter also includes a spatial mapper for spatially expanding each of the space-time streams by applying a spatial expansion matrix to data and to first training symbols used in the preamble to probe a channel experienced by the data and by applying an extension matrix to second training symbols used in the preamble to probe at least one additional dimension of the channel to enable use of beamforming to achieve range extension The spatial expansion matrix and the extension matrix form an overall matrix that has at least two orthogonal columns with different norms. The wireless transmitter also includes an analog front end for modulating the spatially expanded space-time streams onto a wireless carrier.
摘要翻译：无线发射机包括用于从数字信号产生多个空间流的流分析器和用于将每个空间流映射到多个空时流的空时分组编码器（STBC），每个空时流包括数据和前导码，估计信道传递函数。发射机还包括空间映射器，用于通过将空间扩展矩阵应用于数据和在前导码中使用的第一训练符号来空间扩展每个空时流，以探测数据所经历的信道，并通过对第二个应用扩展矩阵在前导码中使用的训练符号以探测信道的至少一个附加维度，以使得能够使用波束成形来实现范围扩展空间扩展矩阵和扩展矩阵形成具有至少两个具有不同规范的正交列的整体矩阵。无线发射机还包括用于将空间扩展的空时流调制到无线载波上的模拟前端。

2. 发明授权

US07432838B2 Method and apparatus for reduced power consumption ADC conversion 有权
标题翻译：降低功耗ADC转换的方法和装置
公开(公告)号：US07432838B2
公开(公告)日：2008-10-07
申请号：US10554805
申请日：2004-04-30
申请人： Markus Muck , Marc Bernard de Courville , Patrick Labbe
发明人： Markus Muck , Marc Bernard de Courville , Patrick Labbe
IPC分类号： H03M1/00
CPC分类号： H03M1/1235 , H03M1/664
摘要： A method for conversion of signals between analog and digital characterised by; applying a non-linear transfer function to an input signal, such that the relation between the quantisation levels of the converter and the input signal vary as a non-linear function of the magnitude of the input signal. The non-linear transfer function is related to the probability density function of the input signal so that larger quantisation bins of the converter correspond to less probable values of the input signal.
摘要翻译：一种模拟和数字信号转换的方法，特征在于：对输入信号应用非线性传递函数，使得转换器的量化电平与输入信号之间的关系作为输入信号幅度的非线性函数而变化。非线性传递函数与输入信号的概率密度函数相关，使得转换器的较大量化仓对应于输入信号的可能值较小。

3. 发明授权

US08190207B2 Communication system and method of operation therefor 有权
标题翻译：通信系统及其操作方法
公开(公告)号：US08190207B2
公开(公告)日：2012-05-29
申请号：US12107353
申请日：2008-04-22
申请人： Patrick Labbe , Mohamed Kamoun , Laurent S. Mazet
发明人： Patrick Labbe , Mohamed Kamoun , Laurent S. Mazet
IPC分类号： H04M1/00
CPC分类号： H04L1/0625 , H04L1/0631 , H04L5/0023 , H04L5/0037 , H04L5/0062 , H04L25/0204 , H04L25/0244 , H04L25/03006 , H04L2025/03426 , H04L2025/03605
摘要： A communication system comprises a set of user equipments which are arranged to simultaneously transmit a signal over an air interface to a base station. Each of the transmitted signals comprises a data stream encoded by a space time block code and transmitted on multiple antennas. Specifically, an Alamouti code may be used. The base station generates a received data stream for each of the set of user equipments by joint space time block code decoding of the signals from the set of user equipments. The invention may provide improved performance and increased capacity and may in particular provide efficient multi user operation for a system using space time block codes. The user equipments may be scheduled in response to cross interference metrics reflecting a cross interference between simultaneously transmitting user equipments.
摘要翻译：通信系统包括一组用户设备，其被布置为通过空中接口同时发送信号到基站。每个发射信号包括由空时块代码编码并在多个天线上发送的数据流。具体地，可以使用Alamouti代码。基站通过对来自用户设备组的信号的联合空间时间块码解码，生成用户设备中的每一个的接收数据流。本发明可以提供改进的性能和增加的容量，并且可以特别地为使用空间时间块码的系统提供有效的多用户操作。可以响应于反映同时发送用户设备之间的交叉干扰的交叉干扰度量来调度用户设备。

4. 发明授权

US07719955B2 Transmission of signaling information in an OFDM communication system 有权
标题翻译：在OFDM通信系统中发送信令信息
公开(公告)号：US07719955B2
公开(公告)日：2010-05-18
申请号：US11912623
申请日：2006-05-01
申请人： Marc Bernard De Courville , Stephanie Rouquette-Leveil , Patrick Labbe , Markus D. Muck , Sebastien Simoens
发明人： Marc Bernard De Courville , Stephanie Rouquette-Leveil , Patrick Labbe , Markus D. Muck , Sebastien Simoens
IPC分类号： H04J11/00 , H04J1/00 , H04L27/00
CPC分类号： H04L5/0094 , H04L5/0007 , H04L5/0046
摘要： An Orthogonal Frequency Division Multiplexing, OFDM, transmitter comprises a signalling data generator (113) which generates a set of data symbols indicative of physical layer characteristics of data transmissions from the OFDM transmitter (100). A first symbol generator (115) and second symbol generator (117) generates a first and second OFDM signalling symbol by allocating the set of data symbols to subcarriers. The allocation of the physical layer data symbols to subcarriers is different for the first OFDM signalling symbol and the second OFDM signalling symbol. A data packet generator (105) and transmitter (101) generate a data packet and transmit this to an OFDM receiver (300). The OFDM receiver (300) determines the physical layer data symbols by combining the data symbols of corresponding subcarriers of the first and second OFDM signalling symbols and uses the resulting information to decode the user data of the data packet.
摘要翻译：正交频分复用OFDM，发射机包括信令数据生成器（113），其产生指示来自OFDM发射机（100）的数据传输的物理层特性的一组数据符号。第一符号发生器（115）和第二符号发生器（117）通过将该组数据符号分配给子载波来产生第一和第二OFDM信令符号。物理层数据符号分配给子载波对于第一OFDM信令符号和第二OFDM信令符号是不同的。数据包发生器（105）和发送器（101）产生数据包并将其发送到OFDM接收器（300）。 OFDM接收机（300）通过组合第一和第二OFDM信令符号的相应子载波的数据符号来确定物理层数据符号，并使用得到的信息来解码数据分组的用户数据。

5. 发明申请

US20090262676A1 COMMUNICATION SYSTEM AND METHOD OF OPERATION THEREFOR 有权
标题翻译：通信系统及其操作方法
公开(公告)号：US20090262676A1
公开(公告)日：2009-10-22
申请号：US12107353
申请日：2008-04-22
申请人： Patrick Labbe , Mohamed Kamoun , Laurent S. Mazet
发明人： Patrick Labbe , Mohamed Kamoun , Laurent S. Mazet
IPC分类号： H04J15/00
CPC分类号： H04L1/0625 , H04L1/0631 , H04L5/0023 , H04L5/0037 , H04L5/0062 , H04L25/0204 , H04L25/0244 , H04L25/03006 , H04L2025/03426 , H04L2025/03605
摘要： A communication system comprises a set of user equipments which are arranged to simultaneously transmit a signal over an air interface to a base station. Each of the transmitted signals comprises a data stream encoded by a space time block code and transmitted on multiple antennas. Specifically, an Alamouti code may be used. The base station generates a received data stream for each of the set of user equipments by joint space time block code decoding of the signals from the set of user equipments. The invention may provide improved performance and increased capacity and may in particular provide efficient multi user operation for a system using space time block codes. The user equipments may be scheduled in response to cross interference metrics reflecting a cross interference between simultaneously transmitting user equipments.
摘要翻译：通信系统包括一组用户设备，其被布置为通过空中接口同时发送信号到基站。每个发射信号包括由空时块代码编码并在多个天线上发送的数据流。具体地，可以使用Alamouti代码。基站通过对来自用户设备的信号的联合空间时间块码解码，生成用户设备中的每一个的接收数据流。本发明可以提供改进的性能和增加的容量，并且可以特别地为使用空间时间块码的系统提供有效的多用户操作。可以响应于反映同时发送用户设备之间的交叉干扰的交叉干扰度量来调度用户设备。

6. 发明授权

US07340178B2 Conversion between optical and radio frequency signals 有权
标题翻译：光和射频信号之间的转换
公开(公告)号：US07340178B2
公开(公告)日：2008-03-04
申请号：US10504009
申请日：2003-01-13
申请人： Patrick Labbe , Jean-Noel Patillon , David Bateman , Eric Toussaere
发明人： Patrick Labbe , Jean-Noel Patillon , David Bateman , Eric Toussaere
IPC分类号： H04B10/00
CPC分类号： G02F1/065 , G02F1/0356 , H04B10/25752
摘要： A detector or a modulator for converting between optical and radio frequency signals comprising an optical guide (11 to 14) for propagating two optical signal components having frequencies that differ by an amount corresponding to a radio frequency and a microstrip radio signal guide (15, 16) for propagating a radio signal at the radio frequency, the microstrip radio signal guide being in travelling-wave coupling with an interaction one (14) of the optical guide comprising material in which interaction between the optical signal components and the radio signal occur. The microstrip radio signal guide element (15, 16) comprises an electrically conductive strip (15) juxtaposed with and extending along the interaction zone (14) on one side thereof and an electrically conductive ground plane (16) juxtaposed with and extending along the interaction zone (14) on an opposite side thereof. Transition radio signal guide elements (20,21) in the form of Vivaldi antennas extending transversely to the microstrip (15) connect the microstrip radio signal guide element (15,16) with a rectangular section wave-guide (18) and a matched load. Each of the transition radio signal guide elements (20, 21) comprises an opening of progressively varying width formed in the electrically conductive ground plane of the microstrip guide (16). Radio frequency signal resonators (24 to 27) extend the ends of the microstrip (15) and the small ends of the Vivaldi antennas.
摘要翻译：一种用于在光学和射频信号之间转换的检测器或调制器，包括用于传播具有与射频相应的频率不同的频率的两个光信号分量的光导体（11〜14）和微带无线电信号引导件（15,16 ），用于以射频传播无线电信号，所述微带无线电信号引导件与所述光导体的相互作用一（14）进行行波耦合，所述相互作用单元包括在所述光信号分量和所述无线电信号之间发生相互作用的材料。微带无线电信号引导元件（15,16）包括一个导电条（15），该导电条（15）在其一侧上与相互作用区（14）并置并延伸，并且导电接地平面（16）与相互作用并置并延伸区域（14）。以横向于微带线（15）延伸的Vivaldi天线形式的过渡无线电信号引导元件（20,21）将微带无线电信号引导元件（15,16）与矩形截面波导（18）和匹配负载。每个过渡无线电信号引导元件（20,21）包括在微带引导件（16）的导电接地平面中形成的逐渐变化的宽度的开口。射频信号谐振器（24至27）延伸微带（15）的端部和Vivaldi天线的小端。

7. 发明授权

US07877015B2 Optical to radio frequency detector 有权
标题翻译：光到射频检测器
公开(公告)号：US07877015B2
公开(公告)日：2011-01-25
申请号：US10504010
申请日：2003-01-13
申请人： Patrick Labbe , Arianna Filoramo , Eric Toussaere , Joseph Zyss
发明人： Patrick Labbe , Arianna Filoramo , Eric Toussaere , Joseph Zyss
IPC分类号： H04B10/00
CPC分类号： G02F2/002 , G02F1/3534 , G02F2201/063 , G02F2201/127 , G02F2202/022 , G02F2202/07 , H04B10/2575 , H04B10/66
摘要： An optical to radio frequency detector comprises an optical guide for receiving two optical signal components having frequencies that differ by an amount corresponding to a radio frequency, and a radio signal guide coupled with an interaction zone of the optical guide for propagating a radio signal from the interaction zone at the radio frequency. The material of the interaction zone presents a second-order non-linear optical polarization characteristic to the propagation of the optical signal components, and the radio signal guide is in travelling-wave coupling with the interaction zone. A radio signal output is coupled with the radio signal guide.
摘要翻译：光到射频检测器包括光导，用于接收具有与射频相对应的频率相差的频率的两个光信号分量，以及与光导的相互作用区耦合的无线电信号引导，用于传播来自射频相互作用区。相互作用区域的材料呈现了光信号分量传播的二阶非线性光学偏振特性，无线电信号引导线与相互作用区域进行行波耦合。无线电信号输出与无线电信号指南耦合。

8. 发明申请

US20100086072A1 COMMUNICATION SYSTEM AND METHOD OF OPERATION THEREFOR 有权
标题翻译：通信系统及其操作方法
公开(公告)号：US20100086072A1
公开(公告)日：2010-04-08
申请号：US12246615
申请日：2008-10-07
申请人： Laurent S. Mazet , Patrick Labbe , Anahid Robert
发明人： Laurent S. Mazet , Patrick Labbe , Anahid Robert
IPC分类号： H04B7/02
CPC分类号： H04B7/0413 , H04B7/086 , H04W72/121
摘要： A Multiple In Multiple Out (MIMO) communication system comprises an air interface scheduler for allocating air interface resource to a plurality of user equipments transmitting to a MIMO receiver. A vector processor of the scheduler determines a receive equalizer vector for the MIMO receiver for each of a plurality of user equipments in response to a channel matrix for the user equipment. The vector processor may specifically apply singular value decomposition to the channel matrix to determine the receive equalizer vector. An orthogonality processor then determines orthogonality measures between receive equalizer vectors for different sets of user equipments. A selection processor selects a set of user equipments to be allocated a shared MIMO air interface resource in response to the orthogonality measures. By scheduling in response to orthogonality of receiver operations, a reduced interference and/or reduced receiver complexity can be achieved.
摘要翻译：多输入多输出（MIMO）通信系统包括空中接口调度器，用于将空中接口资源分配给发射到MIMO接收机的多个用户设备。调度器的向量处理器响应于用户设备的信道矩阵来确定用于多个用户设备中的每一个的MIMO接收机的接收均衡器向量。向量处理器可以具体地对信道矩阵应用奇异值分解以确定接收均衡器向量。然后，正交处理器确定用于不同用户设备组的接收均衡器向量之间的正交性度量。选择处理器响应于正交性度量来选择要分配共享的MIMO空中接口资源的一组用户设备。通过响应于接收机操作的正交性进行调度，可以实现降低的干扰和/或降低的接收机复杂度。

9. 发明申请

US20080101482A1 Method and apparatus for refining MIMO channel estimation using the signal field of the data frame 审中-公开
标题翻译：使用数据帧的信号域来精细化MIMO信道估计的方法和装置
公开(公告)号：US20080101482A1
公开(公告)日：2008-05-01
申请号：US11588151
申请日：2006-10-26
申请人： Patrick Labbe , Marc Bernard De Courville , Stephanie Rouquette-Leveil
发明人： Patrick Labbe , Marc Bernard De Courville , Stephanie Rouquette-Leveil
IPC分类号： H04K1/10
CPC分类号： H04L25/0236 , H04L25/0212 , H04L25/022
摘要： A method is provided to compensate for environmental factors experienced by a wireless signal during transmission between a transmitter and a receiver. The method begins by receiving a wireless signal that includes a data frame having a preamble used to estimate a quantity (e.g., a channel transfer function) relating to signal quality. A portion of the preamble includes information specifying at least one parameter defining a format employed by the data frame. The selected portion of the preamble is decoded and a value for the quantity is estimated using the received preamble, including the decoded selected portion thereof. A signal is demodulated based at least in part on the estimated value of the quantity.
摘要翻译：提供了一种在发射机和接收机之间的传输期间补偿由无线信号所经历的环境因素的方法。该方法通过接收包括具有用于估计与信号质量有关的数量（例如，信道传递函数）的前同步码的数据帧的无线信号开始。前导序列的一部分包括指定定义数据帧采用的格式的至少一个参数的信息。前导码的所选部分被解码，并且使用包括其解码的所选部分的接收到的前导码来估计数量的值。至少部分地基于数量的估计值来解调信号。

10. 发明申请

US20090129258A1 TRANSMISSION OF SIGNALLING INFORMATION IN AN OFDM COMMUNICATION SYSTEM 有权
标题翻译： OFDM通信系统中信令信息的传输
公开(公告)号：US20090129258A1
公开(公告)日：2009-05-21
申请号：US11912623
申请日：2006-05-01
申请人： Marc Bernard De Courville , Stephanie Rouquette-Leveil , Patrick Labbe , Markus D. Muck , Sebastien Simoens
发明人： Marc Bernard De Courville , Stephanie Rouquette-Leveil , Patrick Labbe , Markus D. Muck , Sebastien Simoens
IPC分类号： H04J11/00
CPC分类号： H04L5/0094 , H04L5/0007 , H04L5/0046
摘要： An Orthogonal Frequency Division Multiplexing, OFDM, transmitter comprises a signalling data generator (113) which generates a set of data symbols indicative of physical layer characteristics of data transmissions from the OFDM transmitter (100). A first symbol generator (115) and second symbol generator (117) generates a first and second OFDM signalling symbol by allocating the set of data symbols to subcarriers. The allocation of the physical layer data symbols to subcarriers is different for the first OFDM signalling symbol and the second OFDM signalling symbol. A data packet generator (105) and transmitter (101) generate a data packet and transmit this to an OFDM receiver (300). The OFDM receiver (300) determines the physical layer data symbols by combining the data symbols of corresponding subcarriers of the first and second OFDM signalling symbols and uses the resulting information to decode the user data of the data packet.
摘要翻译：正交频分复用OFDM，发射机包括信令数据生成器（113），其产生指示来自OFDM发射机（100）的数据传输的物理层特性的一组数据符号。第一符号发生器（115）和第二符号发生器（117）通过将该组数据符号分配给子载波来产生第一和第二OFDM信令符号。物理层数据符号分配给子载波对于第一OFDM信令符号和第二OFDM信令符号是不同的。数据包发生器（105）和发送器（101）产生数据包并将其发送到OFDM接收器（300）。 OFDM接收机（300）通过组合第一和第二OFDM信令符号的相应子载波的数据符号来确定物理层数据符号，并使用得到的信息来解码数据分组的用户数据。

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