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公开(公告)号：AU2002366500A1
公开(公告)日：2003-06-30
申请号：AU2002366500
申请日：2002-11-21
Applicant: MOTOROLA INC
Inventor： GOSSE KARINE , ZHUANG XIANGYANG , ROUQUETTE-LEVEIL STEPHANIE , VOOK FREDERICK W
Abstract: The invention provides a method of operating a coded OFDM communication system by interleaving a plurality of encoder output bits; mapping the interleaved bits to a plurality of modulated symbols; and forming a set of OFDM symbols for a plurality of transmit antennas based on the modulated symbols.
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公开(公告)号：AU2002366500A8
公开(公告)日：2003-06-30
申请号：AU2002366500
申请日：2002-11-21
Applicant: MOTOROLA INC
Inventor： ROUQUETTE-LEVEIL STEPHANIE , GOSSE KARINE , VOOK FREDERICK W , ZHUANG XIANGYANG
Abstract: The invention provides a method of operating a coded OFDM communication system by interleaving a plurality of encoder output bits; mapping the interleaved bits to a plurality of modulated symbols; and forming a set of OFDM symbols for a plurality of transmit antennas based on the modulated symbols.
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公开(公告)号：ES2429904T3
公开(公告)日：2013-11-18
申请号：ES07290745
申请日：2007-06-15
Applicant: MOTOROLA INC , MOTOROLA MOBILITY LLC
Inventor： ROUQUETTE-LEVEIL STEPHANIE , DE COURVILLE MARC BERNARD , LABBE PATRICK
IPC: H04L1/06
Abstract: Un transmisor inalámbrico (200), para transmitir señales OFDM incluyendo: un analizador de flujo (216) para dividir a partir de una señal digital una pluralidad de flujos espaciales a transmitirdesde antenas espacialmente separadas; un codificador de bloques espacio-temporales (222), aquí denominado STBC, para generar un preámbulo paraestimar una función de transferencia de canal y para mapear cada uno de los flujos espaciales a una pluralidad deflujos espacio-temporales cada uno de los cuales incluye datos y dicho preámbulo; un mapeador espacial (223) para expandir espacialmente cada uno de los flujos espacio-temporales sobre NTxantenas aplicando una matriz de expansión espacial a datos y a campos de entrenamiento largos de datos usadosen el preámbulo para sondear un canal experimentado por los datos para formar NTx cadenas de transmisión yaplicando una matriz de extensión a campos de entrenamiento largos de extensión usados en el preámbulo parasondear al menos una dimensión adicional del canal para permitir el uso de formación de haz para lograr extensiónde rango, donde la matriz de expansión espacial y la matriz de extensión forman una matriz general que tiene almenos dos columnas ortogonales con normas diferentes; y un extremo delantero analógico (230) para modular los flujos espacio-temporales espacialmente expandidos sobreun soporte inalámbrico.
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公开(公告)号：GB2425922B
公开(公告)日：2007-08-01
申请号：GB0508797
申请日：2005-05-03
Applicant: MOTOROLA INC
Inventor： ROUQUETTE-LEVEIL STEPHANIE , COURVILLE DE MARC G BERNARD , LABBE PATRICK , MUCK MARKUS D , SIMOENS SEBASTIEN
IPC: H04L27/26
Abstract: 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.
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公开(公告)号：GB2425922A
公开(公告)日：2006-11-08
申请号：GB0508797
申请日：2005-05-03
Applicant: MOTOROLA INC
Inventor： ROUQUETTE-LEVEIL STEPHANIE , COURVILLE DE MARC G BERNARD , LABBE PATRICK , MUCK MARKUS D , SIMOENS SEBASTIEN
IPC: H04L27/26
Abstract: An Orthogonal Frequency Division Multiplexing, OFDM, transmitter comprises a signalling data generator (113) which generates a set of data symbols (e.g. in the SIG-N field) indicative of physical layer characteristics (e.g. modulation scheme, coding rate etc.) 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 (the second symbol being a repetition of the first 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. An improved performance and range extension is achieved.
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Patent Agency Ranking
公开(公告)号：WO2006076080A3
公开(公告)日：2006-11-16
申请号：PCT/US2005041972
申请日：2005-11-18
Applicant: MOTOROLA INC , MUCK MARKUS , DE COURVILLE MARC , ROUQUETTE-LEVEIL STEPHANIE
Inventor： MUCK MARKUS , DE COURVILLE MARC , ROUQUETTE-LEVEIL STEPHANIE
CPC classification number: H04L27/261 , H04L27/262
Abstract: An orthogonal Frequency Division Multiplex (OFDM) transmitter (100 in Fig. 1) comprises a symbol generator (103) for generating a first OFDM symbol comprising user data and pilot data. The pilot data comprises a set of predetermined non-orthogonal pilot symbols. A weight generator (109) uses an ampliture estimator (107) for selecting a set of weights for the pilot data in response to a time domain amplitude variation characteristic of the first OFDM symbol. The peak to average power ratio may be determined. The set of weights are selected from a discrete alphabet of weights. A weight processor (113) determineds a second OFDM symbol by weightitng the pilo symbols by the set of weights. The second OFDM symbol is transmitted to a receiver without transmitting identification of the selected set of weights. The receiver may perform a blind detection of the applied weights and may compensate the received pilot symbols for the estimated weight.
Abstract translation: 正交频分复用（OFDM）发射机（图1中的100）包括用于生成包括用户数据和导频数据的第一OFDM符号的符号发生器（103）。 导频数据包括一组预定的非正交导频符号。 权重发生器（109）使用放大估计器（107）来响应于第一OFDM符号的时域幅度变化特性来选择导频数据的一组权重。 可以确定峰均功率比。 权重集是从离散的权重字母表中选出的。 权重处理器（113）通过将该匹配符号加权一组权重来确定第二OFDM符号。 第二OFDM符号被发送到接收机，而不发送所选择的一组权重的标识。 接收机可以执行所施加的权重的盲检测，并且可以针对所估计的权重补偿接收到的导频符号。
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7.发明申请
公开(公告)号：WO2006119159A2
公开(公告)日：2006-11-09
申请号：PCT/US2006016567
申请日：2006-05-01
Applicant: MOTOROLA INC , DE COURVILLE MARC G BERNARD , ROUQUETTE-LEVEIL STEPHANIE , LABBE PATRICK , MUCK MARKUS D , SIMOENS SEBASTIEN
Inventor： DE COURVILLE MARC G BERNARD , ROUQUETTE-LEVEIL STEPHANIE , LABBE PATRICK , MUCK MARKUS D , SIMOENS SEBASTIEN
CPC classification number: H04L5/0094 , H04L5/0007 , H04L5/0046
Abstract: 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.
Abstract translation: 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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8.发明申请A TRANSMITTER AND A RECEIVER FOR COMMUNICATING A SIGNAL FROM MULTIPLE ANTENNAS USING A PREAMBLE 审中-公开使用前置信号从多个天线传播信号的发射机和接收机
公开(公告)号：WO2006052774A3
公开(公告)日：2006-08-03
申请号：PCT/US2005040076
申请日：2005-11-04
Applicant: MOTOROLA INC , MUCK MARKUS , ROUQUETTE-LEVEIL STEPHANIE , DE COURVILLE MARC
Inventor： MUCK MARKUS , ROUQUETTE-LEVEIL STEPHANIE , DE COURVILLE MARC
IPC: H04B1/02
CPC classification number: H04L27/2613 , H04J13/18 , H04L1/0618
Abstract: A transmitter comprises a transmit processor (105), preamble inserters (107, 109) and transmit units (113, 117) which are operable to transmit sub-signals from the antennas (115, 119). A preamble set comprising an individual preamble for each antenna generated by a preamble generator (111). Each of the individual preambles comprise first and second sections. The first section comprises a first data sequence, different for each antenna, and is selected from a predetermined set of preamble sequences. The first data sequence may comprise only time domain symbols belonging to the alphabet [1,-1, i,-i,0]. The second section comprises repetitions of a predetermined second data sequence where each repetition is weighted by a coefficient that is different for each antenna. Weighting may be by coefficients of different rows of a Walsh Hadamard matrix. The second data sequence may comprise only frequency domain symbols belonging to the alphabet of [1,-1,0].
Abstract translation: 发射机包括发射处理器（105），前导码插入器（107,109）和可操作以从天线（115,119）发送子信号的发射单元（113,117）。 一种前置码集，其包括由前导码生成器（111）生成的每个天线的单独前导码。 每个单独的前导码包括第一和第二部分。 第一部分包括对于每个天线不同的第一数据序列，并且从预定的前导序列组中选择。 第一数据序列可以仅包括属于字母表[1，-1，i，-i，0]的时域符号。 第二部分包括预定的第二数据序列的重复，其中每个重复被对于每个天线不同的系数加权。 加权可以是Walsh Hadamard矩阵的不同行的系数。 第二数据序列可以仅包括属于[1，-1,0]的字母表的频域符号。
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9.发明申请METHOD AND APPARATUS FOR ENCODING A MODULATED SIGNAL IN A COMMUNICATION SYSTEM 审中-公开用于在通信系统中编码调制信号的方法和装置
公开(公告)号：WO2009064554A3
公开(公告)日：2009-07-09
申请号：PCT/US2008079059
申请日：2008-10-07
Applicant: MOTOROLA INC , MROUEH LINA , DE COURVILLE MARC BERNARD , MAZET LAURENT S , ROUQUETTE-LEVEIL STEPHANIE
IPC: H04L27/32
CPC classification number: H04L25/03343 , H04L27/3416
Abstract: A method and apparatus for encoding a modulated signal in a communication system. The method includes generating an initial constellation (310), applying a vertical axis symmetry to the initial constellation to generate a first resulting constellation, translating the first resulting constellation to a left direction of the initial constellation to produce a left flipped constellation (320), applying a hortizontal axis symmetry to the initial constellation to generate a second resulting constellation, translating the second resulting constellation to an up direction of the initial constellation to produce an up flipped constellation (330), applying a central axis symmetry to the initial constellation to generate a third resulting constellation; and translating the third resulting constellation to a left-up direction of the initial constellation to produce a left-up flipped constellation (340).
Abstract translation: 一种在通信系统中对调制信号进行编码的方法和装置。 该方法包括生成初始星座（310），将垂直轴对称性应用于初始星座图以产生第一结果星座，将第一结果星座转换为初始星座图的左方向以产生左折叠星座（320），其中， 对初始星座应用水平轴对称性以产生第二结果星座，将第二结果星座转换为初始星座的向上方向，以产生向上翻转星座（330），将中心轴对称性应用于初始星座以产生 第三个星座; 以及将所述第三结果星座转换为所述初始星座图的左上方，以产生左上翻转星座（340）。
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10.发明申请
公开(公告)号：WO03052991A2
公开(公告)日：2003-06-26
申请号：PCT/US0237342
申请日：2002-11-21
Applicant: MOTOROLA INC
Inventor： ZHUANG XIANGYANG , ROUQUETTE-LEVEIL STEPHANIE , VOOK FREDERICK W , GOSSE KARINE
CPC classification number: H04L1/06 , H04L27/2601
Abstract: The invention provides a method of operating a coded OFDM communication system by interleaving a plurality of encoder output bits; mapping the interleaved bits to a plurality of modulated symbols; and forming a set of OFDM symbols for a plurality of transmit antennas based on the modulated symbols.
Abstract translation: 本发明提供一种通过交织多个编码器输出位来操作编码的OFDM通信系统的方法; 将交织的比特映射到多个调制符号; 以及基于所述调制符号，为多个发射天线形成一组OFDM符号。
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