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1. 发明授权

US07751468B2 Estimation of a signal-to-interference plus noise ratio at the output of an OFDM CDMA receiver 有权
标题翻译：在OFDM CDMA接收机的输出处的信号与干扰加噪声比的估计
公开(公告)号：US07751468B2
公开(公告)日：2010-07-06
申请号：US11575576
申请日：2005-09-19
申请人： Mathieu Des Noes , Dimitri Ktenas , Luc Maret , Youssef Nasser
发明人： Mathieu Des Noes , Dimitri Ktenas , Luc Maret , Youssef Nasser
IPC分类号： H04B1/00 , H04N7/12
CPC分类号： H04L1/20 , H04B17/336 , H04L5/0021
摘要： A method of estimating an SINR ratio of an OFDM-CDMA transmission signal spread with spread codes, the transmission signal being transmitted between a transmission apparatus and a receiver apparatus, the method including: receiving the signal spread with spread codes at the receiver apparatus; and calculating, with a processor at the receiver apparatus, an estimate of the SINR ratio for the signal spread with the spread codes independently of a value of the spread codes.
摘要翻译：一种估计扩频码扩频的OFDM-CDMA传输信号的SINR比的方法，所述传输信号在传输装置和接收装置之间传输，所述方法包括：在接收机装置处接收扩频码扩频码; 以及在所述接收机装置处的处理器，与所述扩频码的值无关地利用所述扩频码扩展的所述信号的SINR比的估计。

2. 发明申请

US20080175339A1 Method for the Flexible Demodulation of Estimated Complex Symbols 有权
公开(公告)号：US20080175339A1
公开(公告)日：2008-07-24
申请号：US11817267
申请日：2005-03-08
申请人： Dimitri Ktenas , Mathieu Bouvier Des Noes , Julien Barletta , Claire Guyon
发明人： Dimitri Ktenas , Mathieu Bouvier Des Noes , Julien Barletta , Claire Guyon
IPC分类号： H03D1/00 , H04L27/06
CPC分类号： H04L25/067 , H04L5/026
摘要： A method for soft demapping of complex-valued symbols y(k) (k=1, 2, . . . , K) by calculation of a Logarithm of Likelihood Ratio (LogLR) such that: Log   LR  ( b I , q ) = ln  ∑ λ  ∈ S l , q ( 1 )  exp ( - 1 2  β   y ~  ( k ) - λ  2 ) ∑ λ  ∈ S q , l ( 0 )  exp ( - 1 2  β   y ~  ( k ) - λ  2 ) wherein bI,q is the qth coded bit of an in-phase part of a transmitted signal, β is an asymptotic Signal-to-Interference-plus-Noise Ratio, {tilde over (y)}(k) is a standardized symbol associated with y(k), λ is a reference symbol of QAM constellation associated with a M-QAM modulation, S(1)I,q and S(0)I,q are complex plane partitions that bring together, respectively, all reference symbols λ having a “1” at the position (I, q) and all reference symbols λ having a “0” at the position (I, q), a formula similar to LogLR being given for the bit bQ,p, pth coded bit of a quadrature part of the transmitted signal. The method applies to code division multiple access transmission systems.

3. 发明授权

US08902737B2 Cooperative network with adaptive forwarding request policy 有权
标题翻译：具有自适应转发请求策略的合作网络
公开(公告)号：US08902737B2
公开(公告)日：2014-12-02
申请号：US13101407
申请日：2011-05-05
申请人： Dimitri Ktenas , Emilio Calvanese Strinati
发明人： Dimitri Ktenas , Emilio Calvanese Strinati
IPC分类号： H04L1/00 , H04L25/02 , H04L5/00 , H04L1/18 , H04W72/04 , H04L27/00
CPC分类号： H04L25/0232 , H04L1/18 , H04L1/1825 , H04L1/1893 , H04L5/0023 , H04L5/006 , H04L27/00 , H04L2001/0097 , H04W72/04
摘要： The invention relates to a packet forwarding method in a cooperative network implementing a source terminal, a destination terminal, and at least one relay terminal. In case of a packet decoding error in a node of the network, this method, depending on the outage state of a direct or relayed channel between two nodes of the network, enables a determination of the node(s) having to perform retransmission of the packet and if applicable, the transmission resource(s) to be used.
摘要翻译：本发明涉及一种实现源终端，目的终端和至少一个中继终端的协作网络中的分组转发方法。在网络的节点中的分组解码错误的情况下，该方法取决于网络的两个节点之间的直接或中继信道的中断状态，能够确定必须执行重发的节点分组以及如果适用的话，将要使用的传输资源。

4. 发明授权

US08155230B2 Method for the flexible demodulation of estimated complex symbols 有权
标题翻译：估计复合符号灵活解调的方法
公开(公告)号：US08155230B2
公开(公告)日：2012-04-10
申请号：US11817267
申请日：2005-03-08
申请人： Dimitri Ktenas , Mathieu Bouvier Des Noes , Julien Barletta , Claire Guyon
发明人： Dimitri Ktenas , Mathieu Bouvier Des Noes , Julien Barletta , Claire Guyon
IPC分类号： H04B7/02
CPC分类号： H04L25/067 , H04L5/026
摘要： A method for soft demapping of complex-valued symbols y(k) (k=1, 2, . . . , K) by calculation of a Logarithm of Likelihood Ratio (LogLR) such that: Log ⁢ ⁢ LR ⁡ ( b I , q ) = ln ⁢ ∑ λ ⁢ ∈ S l , q ( 1 ) ⁢ exp ( - 1 2 ⁢ β ⁢  y ~ ⁡ ( k ) - λ  2 ) ∑ λ ⁢ ∈ S q , l ( 0 ) ⁢ exp ( - 1 2 ⁢ β ⁢  y ~ ⁡ ( k ) - λ  2 ) wherein bI,q is the qth coded bit of an in-phase part of a transmitted signal, β is an asymptotic Signal-to-Interference-plus-Noise Ratio, {tilde over (y)}(k) is a standardized symbol associated with y(k), λ is a reference symbol of QAM constellation associated with a M-QAM modulation, S(1)I,q and S(0)I,q are complex plane partitions that bring together, respectively, all reference symbols λ having a “1” at the position (I, q) and all reference symbols λ having a “0” at the position (I, q), a formula similar to LogLR being given for the bit bQ,p, pth coded bit of a quadrature part of the transmitted signal. The method applies to code division multiple access transmission systems.
摘要翻译：一种通过计算似然比对数（LogLR）对复值符号y（k）（k = 1,2，...，K）进行软解映射的方法，使得：Log≠LR⁡（b I，（1）exp（ - 1 2＆bgr;y⁡（k） - λ2）Σλ∈S q，l（0） exp（ - 1 2＆bgr;y⁡（k） - λ2）其中bI，q是发送信号的同相部分的第q个编码比特，＆bgr; 是渐近的信号与干扰加噪声比，（y）}（k）是与y（k）相关联的标准符号，λ是与M-QAM调制相关联的QAM星座的参考符号，S（1）I，q和S（0）I，q分别是在位置（I，q）处分别具有“1”的所有参考符号λ并且所有参考符号λ具有在位置（I，q）处为“0”，对于发送信号的正交部分的位bQ，p，pth编码比特，给出了类似于LogLR的公式。该方法适用于码分多址传输系统。

5. 发明申请

US20120008698A1 METHOD FOR REPORTING A TRANSMISSION CHANNEL QUALITY 失效
标题翻译：报告传输信道质量的方法
公开(公告)号：US20120008698A1
公开(公告)日：2012-01-12
申请号：US13203572
申请日：2010-02-26
申请人： Dimitri Ktenas , Emilio Calvanese Strinati
发明人： Dimitri Ktenas , Emilio Calvanese Strinati
IPC分类号： H04L27/00
CPC分类号： H04L5/006 , H04L1/0029 , H04L1/20 , H04L27/2601
摘要： A method for reporting a user channel quality in a wireless telecommunication system. The user channel includes a plurality of transmission resources such as, for example, frequency intervals of an OFDM multiplex. The user terminal determines the transmission resources which would be in an outage position for a transmission with a set point bit rate. The user terminal transmits on the uplink the list of resources which would be in an outage position as well as a channel quality indicator for resources which would not be.
摘要翻译：一种在无线电信系统中报告用户信道质量的方法。用户信道包括多个传输资源，例如OFDM多路复用的频率间隔。用户终端确定用于具有设定点比特率的传输的中断位置的传输资源。用户终端在上行链路上发送将处于中断位置的资源列表以及用于不会是资源的信道质量指示符。

6. 发明申请

US20110044314A1 MULTI-ACCESS TELECOMMUNICATIONS SYSTEM WITH ADAPTED STRATEGY FOR PACKET RETRANSMISSION 有权
标题翻译：具有适用于分组重传的策略的多通道电信系统
公开(公告)号：US20110044314A1
公开(公告)日：2011-02-24
申请号：US12990444
申请日：2009-04-30
申请人： Emilio Calvanese Strinati , Dimitri Ktenas
发明人： Emilio Calvanese Strinati , Dimitri Ktenas
IPC分类号： H04B7/208 , H04L1/18 , G06F11/14
CPC分类号： H04L1/1867 , H04L1/0026 , H04L5/0007 , H04L5/006
摘要： A wireless OFDMA telecommunications system comprising a transmitter adapted to transmit, by means of an OFDM modulator, a plurality of data packets destined for receivers of a plurality of users, via the same plurality of transmission channels, the transmission channel of a user being associated with a group of sub-carriers of the OFDM multiplex and a set of OFDM symbol times of a transmission interval, each receiver being adapted to signal to the transmitter the loss of a packet transmitted over the transmission channel of the corresponding user, said transmitter further comprising a packet scheduler adapted to control retransmission of each packet lost by means of said modulator. Each receiver comprises detection means of an outage situation of the transmission channel of the corresponding user and signals this to said transmitter by means of an outage information (OUTAGE/NOUTAGE). In the event of outage, said scheduler prohibits any retransmission of a packet lost over said channel during a predetermined time (Tout) greater than or equal to the coherence time of said channel.
摘要翻译：一种无线OFDMA电信系统，包括适于通过OFDM调制器经由相同的多个传输信道发送去往多个用户的接收机的多个数据分组的发射机，所述发射机与用户的传输信道相关联 OFDM多路复用的一组子载波和传输间隔的一组OFDM符号时间，每个接收机适于向发射机发信号通过对应用户的传输信道发送的分组的丢失，所述发射机还包括分组调度器，其适于控制通过所述调制器丢失的每个分组的重传。每个接收机包括相应用户的传输信道的中断情况的检测装置，并借助于中断信息（OUTAGE / NOUTAGE）将其发送给所述发射机。在中断的情况下，所述调度器在大于或等于所述信道的相干时间的预定时间（Tout）期间禁止对所述信道丢失的分组的任何重传。

7. 发明授权

US08649273B2 Method for reporting a transmission channel quality 失效
标题翻译：报告传输信道质量的方法
公开(公告)号：US08649273B2
公开(公告)日：2014-02-11
申请号：US13203572
申请日：2010-02-26
申请人： Dimitri Ktenas , Emilio Calvanese Strinati
发明人： Dimitri Ktenas , Emilio Calvanese Strinati
IPC分类号： G01R31/08
CPC分类号： H04L5/006 , H04L1/0029 , H04L1/20 , H04L27/2601
摘要： A method for reporting a user channel quality in a wireless telecommunication system. The user channel includes a plurality of transmission resources such as, for example, frequency intervals of an OFDM multiplex. The user terminal determines the transmission resources which would be in an outage position for a transmission with a set point bit rate. The user terminal transmits on the uplink the list of resources which would be in an outage position as well as a channel quality indicator for resources which would not be.
摘要翻译：一种在无线电信系统中报告用户信道质量的方法。用户信道包括多个传输资源，例如OFDM多路复用的频率间隔。用户终端确定用于具有设定点比特率的传输的中断位置的传输资源。用户终端在上行链路上发送将处于中断位置的资源列表以及用于不会是资源的信道质量指示符。

8. 发明申请

US20110273981A1 COOPERATIVE NETWORK WITH ADAPTIVE FORWARDING REQUEST POLICY 有权
标题翻译：具有自适应前向请求策略的合作网络
公开(公告)号：US20110273981A1
公开(公告)日：2011-11-10
申请号：US13101407
申请日：2011-05-05
申请人： Dimitri KTENAS , Emilio Calvanese Strinati
发明人： Dimitri KTENAS , Emilio Calvanese Strinati
IPC分类号： H04L12/24
CPC分类号： H04L25/0232 , H04L1/18 , H04L1/1825 , H04L1/1893 , H04L5/0023 , H04L5/006 , H04L27/00 , H04L2001/0097 , H04W72/04
摘要： The invention relates to a packet forwarding method in a cooperative network implementing a source terminal, a destination terminal, and at least one relay terminal. In case of a packet decoding error in a node of the network, this method, depending on the outage state of a direct or relayed channel between two nodes of the network, enables a determination of the node(s) having to perform retransmission of the packet and if applicable, the transmission resource(s) to be used.
摘要翻译：本发明涉及一种实现源终端，目的终端和至少一个中继终端的协作网络中的分组转发方法。在网络的节点中的分组解码错误的情况下，该方法取决于网络的两个节点之间的直接或中继信道的中断状态，能够确定必须执行重发的节点分组以及如果适用的话，将要使用的传输资源。

9. 发明申请

US20090313525A1 METHOD OF DECODING BY MESSAGE PASSING WITH SCHEDULING DEPENDING ON NEIGHBOURHOOD RELIABILITY 有权
标题翻译：消息传递方式依赖邻里可靠性排序
公开(公告)号：US20090313525A1
公开(公告)日：2009-12-17
申请号：US12374531
申请日：2007-07-25
申请人： Valentin Savin , Dimitri Ktenas
发明人： Valentin Savin , Dimitri Ktenas
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/114 , H03M13/1131
摘要： The invention relates to an iterative method by message passing for decoding of an error correction code that can be displayed in a bipartite graph comprising a plurality of variable nodes and a plurality of check nodes. For each iteration in a plurality of decoding iterations of said method: variable nodes or check nodes are classified (720) as a function of the corresponding degrees of reliability of decoding information available in the neighbourhoods (Vn(d),Vm(d)) of these nodes, a node with a high degree of reliability being classified before a node with a low degree of reliability; each node thus classified (725) passes at least one message (αmn,βmn) to an adjacent node, in the order defined by said classification. The invention also relates to a computer program designed to implement said decoding method.
摘要翻译：本发明涉及一种通过消息传递的迭代方法，用于解码可以在包括多个可变节点和多个校验节点的二分图中显示的纠错码。对于所述方法的多个解码迭代中的每个迭代，可变节点或校验节点被分类为（720），作为邻域中可用的解码信息的相应可靠度（Vn（d），Vm（d））的函数）的这些节点，具有高可靠性的节点在具有低可靠性的节点之前分类; 因此分类的每个节点（725）按照由所述分类定义的顺序将至少一个消息（alphamn，betamn）传递给相邻节点。本发明还涉及一种设计用于实现所述解码方法的计算机程序。

10. 发明申请

US20080291888A1 Method and Device for Carrying Out Flexible Demodulation in an Ofdm-Cdma System 有权
标题翻译：用于在ordm-Cdma系统中进行柔性解调的方法和装置
公开(公告)号：US20080291888A1
公开(公告)日：2008-11-27
申请号：US12093925
申请日：2006-11-14
申请人： Luc Maret , Dimitri Ktenas , Mathieu Bouvier Des Noes , Chiara Martinelli-Cattaneo
发明人： Luc Maret , Dimitri Ktenas , Mathieu Bouvier Des Noes , Chiara Martinelli-Cattaneo
IPC分类号： H04J13/04
CPC分类号： H04L5/0016 , H04L25/067 , H04L27/38
摘要： This method for carrying out the flexible demodulation of data modulated following an amplitude modulation in quadrature is used in a communications system employing a code division multiple access technique (CDMA) and an optical frequency division multiplexing (OFDM) using non-binary spread codes. The invention includes steps for determining a simplified expression specific to the logarithm of the likelihood ratio.
摘要翻译：在采用码分多址技术（CDMA）和使用非二进制扩展码的光分频复用（OFDM）的通信系统中，使用用于在正交幅度调制之后进行数据调制的灵活解调的方法。本发明包括用于确定特定于似然比的对数的简化表达式的步骤。

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