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1. 发明申请

US20110264978A1 Cognitive and Universal Impulse Noise Protection 有权
标题翻译：认知和通用脉冲噪声保护
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
IPC分类号： H04L1/18 , G06F11/14
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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