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公开(公告)号：US20100088569A1
公开(公告)日：2010-04-08
申请号：US12573742
申请日：2009-10-05
CPC分类号： H04L1/08 , H03M13/15 , H03M13/1515 , H03M13/6306 , H04L1/007 , H04L1/1887 , H04L27/2601
摘要： Embodiments disclosed herein include systems and methods of packet retransmission. More specifically, at least one nonlimiting example of a method includes receiving data from above a γ (gamma) interface, the data being identified as protected or not protected data; and storing the protected fragment in a retransmission queue included in a transport protocol specific transmission convergence layer.
摘要翻译： 本文公开的实施例包括分组重传的系统和方法。 更具体地，方法的至少一个非限制性示例包括从γ（γ）接口上方接收数据，该数据被识别为受保护或未被保护的数据; 以及将保护的片段存储在包括在传输协议专用传输会聚层中的重传队列中。
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12.发明申请公开(公告)号：US20090232232A1
公开(公告)日：2009-09-17
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
IPC分类号： H04L27/28
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：US08677226B2
公开(公告)日：2014-03-18
申请号：US12728758
申请日：2010-03-22
IPC分类号： G06F11/10
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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14.发明授权公开(公告)号：US07953143B2
公开(公告)日：2011-05-31
申请号：US12036035
申请日：2008-02-22
CPC分类号： H04L27/2647
摘要： A system is described that comprises a frequency domain impulse noise detector configured to monitor received discrete multi-tone (DMT) symbols for impulse noise, a Reed Solomon (RS) decoder with erasure and erasure correction capability for performing error correction on received DMT symbols, and an optimization module configured to adjust parameters associated with the impulse noise detector, the optimization module configured to adjust values for βpivot, βc, and a ratio (m/M), wherein M is a number of monitored tones, m is a number of slicer error samples that must exceed a decision threshold for a symbol to be flagged as corrupted, and 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.
摘要翻译： 描述了一种系统，其包括被配置为监视用于脉冲噪声的接收的离散多音（DMT）符号的频域脉冲噪声检测器，具有用于对所接收的DMT符号执行纠错的擦除和擦除校正能力的里德所罗门（RS）解码器， 以及优化模块，被配置为调整与所述脉冲噪声检测器相关联的参数，所述优化模块被配置为调整所述第一和第二位置的比值（m / M），其中M是监视音调的数量，m 是多个限幅器错误样本，必须超过要标记为损坏的符号的判定阈值，并且＆bgr; pivot和＆bgr; c是与破坏性噪声的统计参数与统计学的比率的单调函数相关联的值 标称噪声参数
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公开(公告)号：US20100138714A1
公开(公告)日：2010-06-03
申请号：US12620832
申请日：2009-11-18
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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公开(公告)号：US20090177938A1
公开(公告)日：2009-07-09
申请号：US12348763
申请日：2009-01-05
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，从而不需要将序列识别插入到数据传输单元中，此外还可以使用重传来利用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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17.发明授权公开(公告)号：US08555149B2
公开(公告)日：2013-10-08
申请号：US12411511
申请日：2009-03-26
IPC分类号： G06F11/00
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码来防止REIN噪声，并且使用伽玛层重传来防止未被RS码校正的错误事件，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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公开(公告)号：US08498326B1
公开(公告)日：2013-07-30
申请号：US12804545
申请日：2010-07-23
申请人： Siva Simanapalli , Julien D. Pons , Arnaud Charton , Karl Yick , Qasem Aldrubi , Hossein Dehghan-Fard
发明人： Siva Simanapalli , Julien D. Pons , Arnaud Charton , Karl Yick , Qasem Aldrubi , Hossein Dehghan-Fard
IPC分类号： H04L27/00
CPC分类号： H04L25/03178 , H04L1/0048 , H04L1/0054 , H04L1/22 , H04L5/0046 , H04L25/03159 , H04L25/03184 , H04L27/30 , H04L2025/03414
摘要： A multi-tone transceiver with a components forming a transmit path and a receive path configured to couple via a subscriber line to an opposing multi-tone transceiver for frequency division multiplexed multi-tone modulated communications therewith is disclosed. A noise margin channel identifier is configured to identify within a received tone set, discrete tones each associated with a corresponding one of at least two channels differing from one another in a relative noise margin of associated tones. A Viterbi decoder is responsive to the channel identification provided by the noise margin channel identifier to discretely decode each of the at least two channels; thereby improving the fidelity of the error correction provided by the Viterbi decoder by discretely processing the identified channels within the received set of tones.
摘要翻译： 公开了具有形成发送路径的组件和被配置为经由用户线耦合到相对的多音调收发器以用于频分复用多音调调制通信的多音调收发器。 噪声容限信道标识符被配置为在接收到的音调集合内识别在相关联音调的相对噪声容限中彼此不同的至少两个信道中的相应一个信道中的每一个相关联的离散音调。 维特比解码器响应于由噪声容限信道标识符提供的信道标识，离散地解码至少两个信道中的每一个; 从而通过离散地处理所接收的音调集合中的所识别的频道来提高由维特比解码器提供的纠错的保真度。
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19.发明授权Systems and methods for performing SISO detection in a WiMAX environment 有权用于在WiMAX环境中执行SISO检测的系统和方法公开(公告)号：US08102946B2
公开(公告)日：2012-01-24
申请号：US12168480
申请日：2008-07-07
申请人： Julien D. Pons , Patrick Duvaut
发明人： Julien D. Pons , Patrick Duvaut
IPC分类号： H03K9/00
CPC分类号： H04L25/067 , H04L25/03305
摘要： In accordance with some embodiments, a communication system is described that comprises a soft-output detector configured to receive a transmit signal and output reliability information regarding the received signal. In accordance with such embodiments, the detector comprises a symbol combiner configured to operate in both a repetition mode and a non-repetition mode, wherein repetition mode comprises receiving a plurality of signals for the transmit signal.
摘要翻译： 根据一些实施例，描述了一种通信系统，其包括被配置为接收发射信号并输出关于接收信号的可靠性信息的软输出检测器。 根据这样的实施例，检测器包括被配置为在重复模式和非重复模式中操作的符号组合器，其中重复模式包括接收用于发射信号的多个信号。
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20.发明申请SYSTEMS AND METHODS FOR PERFORMING SISO DETECTION IN A WiMAX ENVIRONMENT 有权用于在WiMAX环境中执行SISO检测的系统和方法公开(公告)号：US20100002808A1
公开(公告)日：2010-01-07
申请号：US12168480
申请日：2008-07-07
申请人： Julien D. Pons , Patrick Duvaut
发明人： Julien D. Pons , Patrick Duvaut
CPC分类号： H04L25/067 , H04L25/03305
摘要： In accordance with some embodiments, a communication system is described that comprises a soft-output detector configured to receive a transmit signal and output reliability information regarding the received signal. In accordance with such embodiments, the detector comprises a symbol combiner configured to operate in both a repetition mode and a non-repetition mode, wherein repetition mode comprises receiving a plurality of signals for the transmit signal.
摘要翻译： 根据一些实施例，描述了一种通信系统，其包括被配置为接收发射信号并输出关于接收信号的可靠性信息的软输出检测器。 根据这样的实施例，检测器包括被配置为在重复模式和非重复模式中操作的符号组合器，其中重复模式包括接收用于发射信号的多个信号。
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