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公开(公告)号：US20100281349A1
公开(公告)日：2010-11-04
申请号：US12728758
申请日：2010-03-22
CPC分类号： H03M13/251 , H03M13/09 , H03M13/1505 , H03M13/256 , H03M13/353 , H03M13/616 , H04L1/0057 , H04L1/0073 , H04L1/1607
摘要： A method implemented in a digital subscriber line (DSL) system is described for minimizing a misdetection probability at a far-end coded message receiver during transmission of a coded message. The method comprises jointly determining, at the far-end coded message receiver, a P matrix and a modulation scheme. The method further comprises encoding a message into a coded message with a systematic linear block code, the systematic linear block code having a generator matrix [I P], where I represents a linear block code component identity matrix and P represents the determined P matrix. The method also comprises modulating the encoded message to one or more tones forming a discrete multi-tone (DMT) symbol according to the determined modulation scheme.
摘要翻译： 描述了在数字用户线（DSL）系统中实现的方法，用于在编码消息的传输期间最小化远端编码消息接收机处的错误检测概率。 该方法包括在远端编码消息接收机处共同确定P矩阵和调制方案。 该方法还包括将消息编码成具有系统线性块码的编码消息，该系统线性块码具有生成矩阵[I P]，其中I表示线性块码分量单位矩阵，P表示所确定的P矩阵。 该方法还包括根据确定的调制方案将编码消息调制成形成离散多音调（DMT）符号的一个或多个音调。
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公开(公告)号：US20100185791A1
公开(公告)日：2010-07-22
申请号：US12645753
申请日：2009-12-23
IPC分类号： G06F3/00
CPC分类号： H04M11/062 , H04L1/0045 , H04L1/009 , H04L1/18
摘要： Included are embodiments for retransmission in a digital subscriber line environment. At least one embodiment of a method includes framing data into transport frames, each transport frame carrying payload data that is viewed differently according to the computing layer in which it is transported; transporting the transport frames over a first computing layer, the payload data of each transport frame corresponding to an integer number Q of elementary cells of the first computing layer, an integer number of header bytes containing information specific to the transport frame, and an integer number of padding bytes; and transporting the transport frames over a second computing layer, the payload data content of each transport frame corresponding to payload data of an integer number M of elementary cells of the second computing layer.
摘要翻译： 包括在数字用户线环境中进行重传的实施例。 方法的至少一个实施例包括将数据成帧到传输帧中，每个传输帧承载根据其被传送的计算层不同地观看的有效载荷数据; 在第一计算层上传输传输帧，每个传输帧的有效载荷数据对应于第一计算层的基本单元的整数Q，包含传输帧特有的信息的整数个头字节，以及整数 的填充字节; 以及通过第二计算层传送所述传输帧，每个传输帧的有效载荷数据内容对应于所述第二计算层的基本单元的整数M的有效载荷数据。
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3.发明授权Configurable impulse noise protection system and method based on impulse noise statistics 有权基于脉冲噪声统计的可配置脉冲噪声保护系统和方法公开(公告)号：US08261149B2
公开(公告)日：2012-09-04
申请号：US13173672
申请日：2011-06-30
IPC分类号： H04L1/18
CPC分类号： H04L1/1867 , H04L1/0009 , H04L1/0019 , H04L1/0057 , H04L1/0071 , H04L1/1812 , H04L1/20 , H04L27/2601
摘要： Impulse noise from nearby or intense electrical sources can disrupt communications over digital subscriber lines. There are many methods to deal with errors produced by impulse noise sources. Forward error correction (FEC) codes such as Reed Solomon coding along with scrambling and interleaving are used to correct small errors. However, for larger errors, retransmission is favored. Retransmission can be applied at the Discrete Multi-tone symbol level thus eliminating the need to insert sequence identification into data transmission units, furthermore retransmission can also be employed to exploit the error correcting capabilities of the FEC codes. Finally, an impulse noise protection system can exploit impulse noise statistics to configure the redundancy in the FEC codes and to enable the use of blanking. Exemplary embodiments of systems described can cooperatively use impulse noise statistics to utilize retransmission, FEC and blanking to mitigate the effects of impulse noise.
摘要翻译： 来自附近或强电场的脉冲噪声可能会扰乱数字用户线路的通信。 有很多方法来处理由脉冲噪声源产生的误差。 使用诸如Reed Solomon编码的前向纠错（FEC）码以及加扰和交织来校正小错误。 然而，对于较大的错误，重传是有利的。 可以在离散多音符号级别应用重传，从而不需要将序列标识插入到数据传输单元中，此外还可以采用重传来利用FEC码的纠错能力。 最后，脉冲噪声保护系统可以利用脉冲噪声统计来配置FEC码中的冗余，并且能够使用消隐。 所描述的系统的示例性实施例可以协同地使用脉冲噪声统计来利用重传，FEC和消隐来减轻脉冲噪声的影响。
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公开(公告)号：US08112687B2
公开(公告)日：2012-02-07
申请号：US12348763
申请日：2009-01-05
申请人： Julien D. Pons , Patrick Duvaut , Massimo Sobara , Yue-Peng Zheng
发明人： Julien D. Pons , Patrick Duvaut , Massimo Sobara , Yue-Peng Zheng
IPC分类号： H04L1/18
CPC分类号： H04L1/1867 , H04L1/0009 , H04L1/0019 , H04L1/0057 , H04L1/0071 , H04L1/1812 , H04L1/20 , H04L27/2601
摘要： Various embodiments for mitigating impulse noise are disclosed that cooperatively use impulse noise statistics to utilize retransmission, forward error correction (FEC), and blanking to mitigate the effects of a wide variety of impulse noise sources.
摘要翻译： 公开了用于减轻脉冲噪声的各种实施例，其协作地使用脉冲噪声统计来利用重传，前向纠错（FEC）和消隐来减轻各种脉冲噪声源的影响。
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5.发明申请公开(公告)号：US20090249133A1
公开(公告)日：2009-10-01
申请号：US12411511
申请日：2009-03-26
CPC分类号： H04L1/1835 , H03M13/1515 , H03M13/6306 , H03M13/6533 , H04L1/0045 , H04L1/0057 , H04L1/0071 , H04L1/1838 , H04L1/1858
摘要： Systems and methods for protecting DSL systems against impulse noise are provided. Disclosed herein are example embodiments of a retransmission technique located above the gamma interface (i.e., in the network processing layer). Such a retransmission technique can be combined with standard RS coding with standard erasure-decoding & triangular interleaving at the PMS-TC layer. Example embodiments of the technique involve using the RS code to protect against REIN noise, and using γ-layer retransmission for protecting against error events not corrected by the RS code, e.g. a SHINE noise in the presence of REIN. Both techniques are used jointly in the case of combined REIN and SHINE noise.
摘要翻译： 提供了用于保护DSL系统免受脉冲噪声的系统和方法。 这里公开了位于伽马接口（即网络处理层）之上的重传技术的示例实施例。 这样的重传技术可以与在PMS-TC层的标准擦除解码和三角形交织的标准RS编码组合。 该技术的示例实施例涉及使用RS代码来防止REIN噪声，并且使用伽玛层重传来防止未被RS码纠正的错误事件，例如， 在REIN存在下的SHINE噪音。 两种技术在组合REIN和SHINE噪声的情况下共同使用。
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6.发明申请公开(公告)号：US20090216489A1
公开(公告)日：2009-08-27
申请号：US12036035
申请日：2008-02-22
CPC分类号： H04L27/2647
摘要： Systems and methods for deriving parameters for frequency domain impulse noise detectors are described. At least one embodiment is a method for deriving a set of parameters associated with a frequency domain impulse noise detector. In accordance with such embodiments, the method comprises setting values for βpivot and βc, wherein βpivot and βc are values associated with a monotonic function of a ratio of a statistical parameter of disruptive noise to a statistical parameter of nominal noise. The method further comprises selecting a fixed ratio (m/M), wherein M is a number of monitored tones, and wherein m is a number of slicer error samples that must exceed a decision threshold for a symbol to be flagged as corrupted. The method also comprises selecting a plurality of values for M and computing a corresponding value of m based on the fixed ratio (m/M), calculating α based on the values of M, m, and βpivot, wherein α is a tunable scaling factor, and calculating a probability of a miss and a probability of a false alarm based on the values of M, m, βc, and α for each of the plurality of values of M. In accordance with some embodiments, the method further comprises selecting from among the plurality of values for M such that the larger of the probability of a miss and the probability of a false alarm is a predetermined scale factor less than a predetermined bit error rate (BER) at a selected value of βc in order to achieve the predetermined BER.
摘要翻译： 描述了用于导出频域脉冲噪声检测器参数的系统和方法。 至少一个实施例是用于导出与频域脉冲噪声检测器相关联的一组参数的方法。 根据这样的实施方案，该方法包括设定betapivot和betac的值，其中betapivot和betac是与破坏性噪声的统计参数与标称噪声的统计参数的比率的单调函数相关联的值。 所述方法还包括选择固定比率（m / M），其中M是所监视音调的数量，并且其中m是必须超过要标记为损坏的符号的判定阈值的限幅器误差样本的数量。 该方法还包括选择M的多个值并基于固定比率（m / M）计算m的对应值，基于M，m和betapivot的值计算α，其中α是可调整缩放因子 ，并且基于M的多个值中的每一个的M，m，betac和α的值来计算遗漏的概率和误报率的概率。根据一些实施例，该方法还包括从 在M的多个值中，使得错误的概率和假警报的概率中的较大者是小于所选择的betac值的预定比特误码率（BER）的预定比例因子，以便实现 预定的BER。
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公开(公告)号：US08463955B2
公开(公告)日：2013-06-11
申请号：US12645753
申请日：2009-12-23
IPC分类号： G06F3/00
CPC分类号： H04M11/062 , H04L1/0045 , H04L1/009 , H04L1/18
摘要： Included are embodiments for retransmission in a digital subscriber line environment. At least one embodiment of a method includes framing data into transport frames, each transport frame carrying payload data that is viewed differently according to the computing layer in which it is transported; transporting the transport frames over a first computing layer, the payload data of each transport frame corresponding to an integer number Q of elementary cells of the first computing layer, an integer number of header bytes containing information specific to the transport frame, and an integer number of padding bytes; and transporting the transport frames over a second computing layer, the payload data content of each transport frame corresponding to payload data of an integer number M of elementary cells of the second computing layer.
摘要翻译： 包括在数字用户线环境中进行重传的实施例。 方法的至少一个实施例包括将数据成帧到传输帧中，每个传输帧承载根据其被传送的计算层不同地观看的有效载荷数据; 在第一计算层上传输传输帧，每个传输帧的有效载荷数据对应于第一计算层的基本单元的整数Q，包含传输帧特有的信息的整数个头字节，以及整数 的填充字节; 以及通过第二计算层传送所述传输帧，每个传输帧的有效载荷数据内容对应于所述第二计算层的基本单元的整数M的有效载荷数据。
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公开(公告)号：US08413000B2
公开(公告)日：2013-04-02
申请号：US12620832
申请日：2009-11-18
IPC分类号： G06F11/00
CPC分类号： H04L1/1874
摘要： Embodiments disclosed herein are configured for retransmission above the gamma (γ) interface. At least one embodiment of a method includes receiving data from an Ethernet layer, the data being identified as eligible for retransmission or not eligible for retransmission; in response to a determination that the data is eligible for retransmission, storing a copy of at least a portion of the data in a retransmission queue; and transmitting the data across a gamma (γ) interface to a packet transfer mode transmission convergence layer.
摘要翻译： 本文公开的实施例被配置为在γ（γ）界面上方重传。 方法的至少一个实施例包括从以太网层接收数据，所述数据被识别为符合重传的资格或不符合重传的资格; 响应于确定所述数据有资格进行重传，将至少一部分数据的副本存储在重传队列中; 以及将数据跨越伽马（γ）接口发送到分组传输模式传输会聚层。
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9.发明授权公开(公告)号：US08391378B2
公开(公告)日：2013-03-05
申请号：US12251862
申请日：2008-10-15
申请人： Patrick Duvaut , Julien D Pons
发明人： Patrick Duvaut , Julien D Pons
CPC分类号： H04L25/067 , H04B7/0413 , H04L25/0248 , H04L25/03184 , H04L25/03229 , H04L27/38 , H04L2025/0342 , H04L2025/03426 , H04L2025/03643
摘要： Included are embodiments of method for method for computing metrics. At least one embodiment includes searching a MIMO detection tree, the detection tree configuration being formed by a plurality of nodes and a plurality of leaves connected via a plurality of branches, the computational complexity associated with computing a node metric decreases with the node depth in the tree configuration and providing an estimate on a transmitted signal.
摘要翻译： 包括用于计算度量的方法的方法的实施例。 至少一个实施例包括搜索MIMO检测树，检测树配置由多个节点和经由多个分支连接的多个叶片形成，与计算节点度量相关联的计算复杂度随着节点深度的减小而减小 树配置并提供对发射信号的估计。
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公开(公告)号：US20110264978A1
公开(公告)日：2011-10-27
申请号：US13173672
申请日：2011-06-30
申请人： Julien D. Pons , Patrick Duvaut , Massimo Sobara , Yue-Peng Zheng
发明人： Julien D. Pons , Patrick Duvaut , Massimo Sobara , Yue-Peng Zheng
CPC分类号： H04L1/1867 , H04L1/0009 , H04L1/0019 , H04L1/0057 , H04L1/0071 , H04L1/1812 , H04L1/20 , H04L27/2601
摘要： Impulse noise from nearby or intense electrical sources can disrupt communications over digital subscriber lines. There are many methods to deal with errors produced by impulse noise sources. Forward error correction (FEC) codes such as Reed Solomon coding along with scrambling and interleaving are used to correct small errors. However, for larger errors, retransmission is favored. Retransmission can be applied at the Discrete Multi-tone symbol level thus eliminating the need to insert sequence identification into data transmission units, furthermore retransmission can also be employed to exploit the error correcting capabilities of the FEC codes. Finally, an impulse noise protection system can exploit impulse noise statistics to configure the redundancy in the FEC codes and to enable the use of blanking. Exemplary embodiments of systems described can cooperatively use impulse noise statistics to utilize retransmission, FEC and blanking to mitigate the effects of impulse noise.
摘要翻译： 来自附近或强电场的脉冲噪声可能会扰乱数字用户线路的通信。 有很多方法来处理由脉冲噪声源产生的误差。 使用诸如Reed Solomon编码的前向纠错（FEC）码以及加扰和交织来校正小错误。 然而，对于较大的错误，重传是有利的。 可以在离散多音符号级别应用重传，从而不需要将序列标识插入到数据传输单元中，此外还可以采用重传来利用FEC码的纠错能力。 最后，脉冲噪声保护系统可以利用脉冲噪声统计来配置FEC码中的冗余，并且能够使用消隐。 所描述的系统的示例性实施例可以协同地使用脉冲噪声统计来利用重传，FEC和消隐来减轻脉冲噪声的影响。
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