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1. 发明授权

US08401131B2 Reduction of interference in an OFDM signal with weighting vectors evolving in vector subspaces 有权
标题翻译：用矢量子空间中的权重向量减少OFDM信号中的干扰
公开(公告)号：US08401131B2
公开(公告)日：2013-03-19
申请号：US12747111
申请日：2008-12-09
申请人： Luc Fety , Philippe Mege , Laurent Martinod
发明人： Luc Fety , Philippe Mege , Laurent Martinod
IPC分类号： H03D1/04
CPC分类号： H04L25/03159 , H04B1/123 , H04B7/0851 , H04L1/06 , H04L2025/03414 , H04L2025/03617
摘要： To reduce interferences in signals received by a receiver through a propagation channel, each including symbols distributed according to frequency and time dimensions and corresponding to a common emitted signal, the receiver weights an estimate of the emitted signal and the received signals by weighting vectors evolving in vector subspaces representing time variations and frequency variations of the channels for propagating the signals between an emitter and the receiver. These vector subspaces are defined by matrices, some columns of which are suppressed as a function of frequency and time constraints of the channel. The receiver minimizes a function of the difference between the sum of weighted received signals and the weighted estimate of the emitted signal in order to estimate the emitted signal as a function of the weighting vectors and the received signals.
摘要翻译：为了减少由接收机通过传播信道接收的信号的干扰，每个信号包括根据频率和时间维度分布并且对应于公共发射信号的符号，接收机通过加权矢量对发射信号和接收信号的估计进行加权，表示用于在发射器和接收器之间传播信号的通道的时间变化和频率变化的矢量子空间。这些矢量子空间由矩阵定义，其中一些列被抑制为通道的频率和时间约束的函数。接收机将加权接收信号的和之差和发射信号的加权估计的函数最小化，以便根据加权向量和接收信号来估计发射信号。

2. 发明申请

US20080273630A1 DECODING SYMBOLS OF A SIGNAL DISTRIBUTED ACCORDING TO FREQUENCY AND TIME DIMENSIONS 审中-公开
标题翻译：根据频率和时间尺寸分解的信号的解码符号
公开(公告)号：US20080273630A1
公开(公告)日：2008-11-06
申请号：US12110423
申请日：2008-04-28
申请人： Philippe Mege , Laurent Martinod
发明人： Philippe Mege , Laurent Martinod
IPC分类号： H04L27/06
CPC分类号： H04L25/067 , H04L1/005 , H04L27/2647
摘要： A signal of OFDM type received in a radio receiver via a propagation channel includes symbols distributed according to frequency and time. The receiver determines likelihoods of the symbols, decodes the received signal to yield a decoded signal as a function of the likelihoods of the symbols, and estimates an instantaneous noise power of the received signal as a function of a difference between the received signal and a reconstructed noise-free signal derived from the decoded signal. A filtering module determines a bounded distribution of the instantaneous noise power as a function of frequency and/or time, and filters the distribution to yield a filtered noise variance as a function of a frequency and/or time parameter of the propagation channel. A corrector weights the likelihoods of the symbols of the received signal to be decoded as a function of the filtered noise variance.
摘要翻译：经由传播信道在无线接收机中接收的OFDM类型的信号包括根据频率和时间分配的符号。接收机确定符号的可能性，对接收到的信号进行解码以产生作为符号的似然性的函数的解码信号，并且将接收信号的瞬时噪声功率估计为接收信号与重构的接收信号之间的差的函数从解码信号得到的无噪声信号。滤波模块确定作为频率和/或时间的函数的瞬时噪声功率的有界分布，并且对该分布进行滤波以产生作为传播信道的频率和/或时间参数的函数的滤波噪声方差。校正器将要解码的接收信号的符号的可能性加权为滤波噪声方差的函数。

3. 发明申请

US20100322339A1 REDUCTION OF INTERFERENCE IN AN OFDM SIGNAL WITH WEIGHTING VECTORS EVOLVING IN VECTOR SUBSPACES 有权
标题翻译：降低矢量参考矢量中正交信号的干扰
公开(公告)号：US20100322339A1
公开(公告)日：2010-12-23
申请号：US12747111
申请日：2008-12-09
申请人： Luc Fety , Philippe Mege , Laurent Martinod
发明人： Luc Fety , Philippe Mege , Laurent Martinod
IPC分类号： H04B15/00
CPC分类号： H04L25/03159 , H04B1/123 , H04B7/0851 , H04L1/06 , H04L2025/03414 , H04L2025/03617
摘要： To reduce interferences in signals received by a receiver through a propagation channel, each including symbols distributed according to frequency and time dimensions and corresponding to a common emitted signal, the receiver weights an estimate of the emitted signal and the received signals by weighting vectors evolving in vector subspaces representing time variations and frequency variations of the channels for propagating the signals between an emitter and the receiver. These vector subspaces are defined by matrices, some columns of which are suppressed as a function of frequency and time constraints of the channel. The receiver minimizes a function of the difference between the sum of weighted received signals and the weighted estimate of the emitted signal in order to estimate the emitted signal as a function of the weighting vectors and the received signals.
摘要翻译：为了减少由接收机通过传播信道接收的信号的干扰，每个信号包括根据频率和时间维度分布并且对应于公共发射信号的符号，接收机通过加权矢量对发射信号和接收信号的估计进行加权，表示用于在发射器和接收器之间传播信号的通道的时间变化和频率变化的矢量子空间。这些矢量子空间由矩阵定义，其中一些列被抑制为通道的频率和时间约束的函数。接收机将加权接收信号的和之差和发射信号的加权估计的函数最小化，以便根据加权向量和接收信号来估计发射信号。

4. 发明授权

US09189321B2 Error correction encoding method, decoding method and associated devices 有权
标题翻译：纠错编码方法，解码方式及相关设备
公开(公告)号：US09189321B2
公开(公告)日：2015-11-17
申请号：US14004796
申请日：2012-03-14
申请人： Philippe Mege , Hang Nguyen , Laurent Martinod , Alina Alexandra Florea
发明人： Philippe Mege , Hang Nguyen , Laurent Martinod , Alina Alexandra Florea
IPC分类号： H03M13/00 , G06F11/08 , H03M13/29 , H03M13/35 , H03M13/39 , H03M13/27 , H03M13/11 , H03M13/13 , H03M13/15 , H03M13/19
CPC分类号： G06F11/08 , H03M13/1102 , H03M13/1194 , H03M13/132 , H03M13/136 , H03M13/1505 , H03M13/1515 , H03M13/152 , H03M13/19 , H03M13/27 , H03M13/2948 , H03M13/296 , H03M13/2963 , H03M13/2972 , H03M13/356 , H03M13/3905 , H03M13/6362
摘要： An error correction encoding method is provided for encoding source digital data having the form of a frame, wherein the data can be classified into a plurality of classes. The present encoding method includes the following steps: a first encoding step for encoding data to be encoded formed by the data of a first class, to obtain encoded data; and implementing the following step successively for at least one other class: mixing data of the other class and the data encoded or to be encoded from a preceding encoding step; and encoding data to be encoded formed by mixed data to obtain encoded data. Related decoding methods, as well as encoding and decoding devices are also disclosed.
摘要翻译：提供了一种用于对具有帧形式的源数字数据进行编码的纠错编码方法，其中数据可以分为多个类。本编码方法包括以下步骤：第一编码步骤，用于对由第一类的数据形成的待编码数据进行编码，以获得编码数据; 并且针对至少一个其他类别连续执行以下步骤：从先前的编码步骤混合另一类的数据和被编码或将被编码的数据; 以及编码由混合数据形成的编码数据以获得编码数据。还公开了相关的解码方法，以及编码和解码装置。

5. 发明申请

US20140006895A1 ERROR CORRECTION ENCODING METHOD, DECODING METHOD AND ASSOCIATED DEVICES 有权
标题翻译：错误校正编码方法，解码方法和相关设备
公开(公告)号：US20140006895A1
公开(公告)日：2014-01-02
申请号：US14004796
申请日：2012-03-14
申请人： Philippe Mege , Hang Nguyen , Laurent Martinod , Alina Alexandra Florea
发明人： Philippe Mege , Hang Nguyen , Laurent Martinod , Alina Alexandra Florea
IPC分类号： G06F11/08
CPC分类号： G06F11/08 , H03M13/1102 , H03M13/1194 , H03M13/132 , H03M13/136 , H03M13/1505 , H03M13/1515 , H03M13/152 , H03M13/19 , H03M13/27 , H03M13/2948 , H03M13/296 , H03M13/2963 , H03M13/2972 , H03M13/356 , H03M13/3905 , H03M13/6362
摘要： An error correction encoding method is provided for encoding source digital data having the form of a frame, wherein the data can be classified into a plurality of classes. The present encoding method includes the following steps: a first encoding step for encoding data to be encoded formed by the data of a first class, to obtain encoded data; and implementing the following step successively for at least one other class: mixing data of the other class and the data encoded or to be encoded from a preceding encoding step; and encoding data to be encoded formed by mixed data to obtain encoded data. Related decoding methods, as well as encoding and decoding devices are also disclosed.
摘要翻译：提供了一种用于对具有帧形式的源数字数据进行编码的纠错编码方法，其中数据可以分为多个类。本编码方法包括以下步骤：第一编码步骤，用于对由第一类的数据形成的待编码数据进行编码，以获得编码数据; 并且针对至少一个其他类别连续执行以下步骤：从先前的编码步骤混合另一类的数据和被编码或将被编码的数据; 以及编码由混合数据形成的编码数据以获得编码数据。还公开了相关的解码方法，以及编码和解码装置。

6. 发明授权

US07310378B2 Estimating a transmission channel with pilot symbols distributed in lattice structure 失效
标题翻译：用格子结构分布的导频符号来估计传输信道
公开(公告)号：US07310378B2
公开(公告)日：2007-12-18
申请号：US10493324
申请日：2002-10-18
申请人： Philippe Mege , Christophe Brutel
发明人： Philippe Mege , Christophe Brutel
IPC分类号： H04J11/00 , H04N11/02
CPC分类号： H04L25/0232 , H04L25/0204 , H04L25/022 , H04L25/025 , H04L27/2647 , H04L27/2698
摘要： A method for estimating a transmission channel from a multicarrier signal transmitted through said transmission channel, comprising real pilot symbols and so-called pure imaginary pilot symbols, consists in selecting one or several values zk of the received signal corresponding respectively to one or several real pilot symbols, and one or several values zl of the received signal corresponding respectively to one or several pure imaginary pilot symbols. The pilot symbols are sufficiently close both in frequency and in time such that it can be assumed that the fading of the signal through the transmission channel has a complex value α substantially identical for the symbols. An estimated value {circumflex over (α)} of α for the pilot symbols concerned is then determined by minimizing a least square equation involving the values zk and the values zl.
摘要翻译：一种用于从包括实际导频符号和所谓的纯虚拟导频符号的所述传输信道发射的多载波信号估计传输信道的方法在于选择接收信号的一个或多个值z k 分别对应于一个或几个实际导频符号，以及分别对应于一个或几个纯虚拟导频符号的接收信号的一个或几个值z 1。导频符号在频率和时间上均足够接近，使得可以假设通过传输信道的信号的衰落具有对于符号实质上相同的复数值α。然后，通过使涉及值z z和z z的值的最小二乘方最小化来确定相关导频符号的α的估计值（对于（α）}）。

7. 发明申请

US20070099639A1 Method of synchronization of the uplink channel of a simulcast network 有权
标题翻译：同步网络的上行链路信道的同步方法
公开(公告)号：US20070099639A1
公开(公告)日：2007-05-03
申请号：US10596800
申请日：2004-12-14
申请人： Philippe Mege , Christophe Molko , Frederic Rosin
发明人： Philippe Mege , Christophe Molko , Frederic Rosin
IPC分类号： H04B7/00 , H04B15/00
CPC分类号： H04W56/0005 , H04W92/10
摘要： A method of synchronization on the uplink channel of a Simulcast network with a plurality of fixed receivers (BS1-BS4) and a selection unit (20), comprises the following steps. All the receivers are placed in a synchronization search mode (702), in which they search for a synchronization pattern sent by the mobile terminal over the uplink channel. When a receiver detects the synchronization pattern, it produces an initial synchronization context (SC3(0)), which indicates the delay of the radio signal relative to a time reference of the network, and transmits it (705) to the selection unit. The latter broadcasts it (707) to all the receivers that use it to start processing the radio signal. Then, each receiver maintains its synchronization context and transmits it (708-712) to the selection unit on each frame. At regular intervals, the value of an updated synchronization context (SC2(i)) is broadcast (714) to the receivers. Advantage: the synchronization of a receiver which begins to receive the radio signal during a call or alternate turn is facilitated.
摘要翻译：具有多个固定接收机（BS 1 -BS 4）和选择单元（20）的Simulcast网络的上行链路信道上的同步方法包括以下步骤。所有的接收机被放置在同步搜索模式（702）中，其中它们通过上行链路信道搜索由移动终端发送的同步模式。当接收机检测到同步模式时，它产生初始同步上下文（SC 3（0）），其指示无线电信号相对于网络的时间参考的延迟，并将其发送（705）到选择单元。后者向所有使用它的接收机广播（707）开始处理无线电信号。然后，每个接收机保持其同步上下文，并将其（708- 712）发送到每个帧上的选择单元。以规则的间隔，将更新的同步上下文（SC 2（i））的值广播（714）给接收机。优点：便于在呼叫或交替转弯期间开始接收无线电信号的接收机的同步。

8. 发明授权

US06829317B2 Signalling method in a radio communication system, and transmitters, receivers and repeaters for implementing the method 失效
标题翻译：无线电通信系统中的信令方法，以及用于实现该方法的发射机，接收机和中继器
公开(公告)号：US06829317B2
公开(公告)日：2004-12-07
申请号：US09733199
申请日：2000-12-08
申请人： Philippe Mege , Fabrice Belveze
发明人： Philippe Mege , Fabrice Belveze
IPC分类号： H04L700
CPC分类号： H04L1/0025 , H04L7/042 , H04L25/0202 , H04L27/0012 , H04L27/2003
摘要： A transmitter outputs a radio signal formed from a first baseband signal incorporating a synchronization signal. The recipient obtains a second baseband signal from the received radio signal, detects the synchronization signal in a portion of the second baseband signal in order to compute synchronization parameters and/or parameters for estimating a radio transmission channel, and uses the computed parameters to demodulate another portion of the second baseband signal and extract the transmitted information from it. The synchronization signal contains a synchronization pattern selected by the transmitter on the basis of signalling information to be supplied to the second station. The receiver searches several patterns in the second baseband signal in order to obtain the signalling information depending on the detected pattern.
摘要翻译：发射机输出由包含同步信号的第一基带信号形成的无线电信号。接收者从接收到的无线电信号中获得第二基带信号，检测第二基带信号的一部分中的同步信号，以便计算用于估计无线电传输信道的同步参数和/或参数，并且使用所计算的参数来解调另一个部分第二基带信号，并从其中提取所发送的信息。同步信号包含基于要提供给第二站的信令信息由发射机选择的同步模式。接收机搜索第二基带信号中的几个模式，以便根据检测到的模式获得信令信息。

9. 发明授权

US5544155A Method of synchronization for code division multiple access radiotelephone communications 失效
标题翻译：码分多址无线电话通信的同步方法
公开(公告)号：US5544155A
公开(公告)日：1996-08-06
申请号：US260928
申请日：1994-06-15
申请人： Philippe Lucas , Philippe Mege , Stephane Pineau
发明人： Philippe Lucas , Philippe Mege , Stephane Pineau
IPC分类号： H04B1/707 , H04B7/26 , H04L7/00 , H04B1/69 , H04B7/216 , H04J13/02 , H04L27/30
CPC分类号： H04B1/70755 , H04W56/0085 , H04B1/7087 , H04B2201/70701 , H04W92/10
摘要： A synchronization method includes selecting, at a mobile station, at least one periodic pseudorandom sequence (PN) which corresponds to, and is synchronized with, the reference sequence transmitted by a base station on a pilot channel, and received by the mobile station over a propagation path, this operation being carried out regardless of the frequency deviation between the transmitter and the receiver. Various possible sequences are tested by calculating the quantities E[s(t).multidot.s*(t-.tau.)] and E[s(t).multidot.s*(t)], where E[.multidot.] designates the mean value calculated over a predetermined integration time, .tau. designates a predetermined delay, and s(t)=r(t).multidot.c(t) designates the product of the received base band signal r(t) and the value (c(t)) of the tested sequence, and by calculating the ratio .vertline.E[s(t).multidot.s*(t-.tau.)][.vertline./Es(t).multidot.s*(t)]. The sequence under test is selected if the ratio exceeds a predetermined threshold.
摘要翻译：同步方法包括在移动台处选择与由基站在导频信道上发送的参考序列对应并与之同步的至少一个周期性伪随机序列（PN），并由移动站通过一个传播路径，无论发射机和接收机之间的频率偏差如何，都要执行此操作。通过计算量E [s（t）xs *（t-τ）]和E [s（t）xs *（t）]来测试各种可能的序列，其中E [x]表示在预定积分时间τ表示预定的延迟，s（t）= r（t）xc（t）表示被测序列的接收基带信号r（t）和值（c（t））的乘积，并且通过计算比率| E [s（t）xs *（t-τ）] [| / Es（t）xs *（t）]。如果比率超过预定阈值，则选择待测序列。

10. 发明授权

US07454219B2 Method of synchronization of the uplink channel of a simulcast network 有权
标题翻译：同步网络的上行链路信道的同步方法
公开(公告)号：US07454219B2
公开(公告)日：2008-11-18
申请号：US10596800
申请日：2004-12-14
申请人： Philippe Mege , Christophe Molko , Frédéric Rosin
发明人： Philippe Mege , Christophe Molko , Frédéric Rosin
IPC分类号： H04B7/00 , H04B15/00
CPC分类号： H04W56/0005 , H04W92/10
摘要： A method of synchronization on the uplink channel of a Simulcast network with a plurality of fixed receivers (BS1-BS4) and a selection unit (20), comprises the following steps. All the receivers are placed in a synchronization search mode (702), in which they search for a synchronization pattern sent by the mobile terminal over the uplink channel. When a receiver detects the synchronization pattern, it produces an initial synchronization context (SC3(0)), which indicates the delay of the radio signal relative to a time reference of the network, and transmits it (705) to the selection unit. The latter broadcasts it (707) to all the receivers that use it to start processing the radio signal. Then, each receiver maintains its synchronization context and transmits it (708-712) to the selection unit on each frame. At regular intervals, the value of an updated synchronization context (SC2(i)) is broadcast (714) to the receivers. Advantage: the synchronization of a receiver which begins to receive the radio signal during a call or alternate turn is facilitated.
摘要翻译：具有多个固定接收机（BS 1 -BS 4）和选择单元（20）的Simulcast网络的上行链路信道上的同步方法包括以下步骤。所有的接收机被放置在同步搜索模式（702）中，其中它们通过上行链路信道搜索由移动终端发送的同步模式。当接收机检测到同步模式时，它产生初始同步上下文（SC 3（0）），其指示无线电信号相对于网络的时间参考的延迟，并将其发送（705）到选择单元。后者向所有使用它的接收机广播（707）开始处理无线电信号。然后，每个接收机保持其同步上下文，并将其（708- 712）发送到每个帧上的选择单元。以规则的间隔，将更新的同步上下文（SC 2（i））的值广播（714）给接收机。优点：便于在呼叫或交替转弯期间开始接收无线电信号的接收机的同步。

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