发明授权
US08261149B2 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
- 专利标题: Configurable impulse noise protection system and method based on impulse noise statistics
- 专利标题(中): 基于脉冲噪声统计的可配置脉冲噪声保护系统和方法
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申请号: US13173672申请日: 2011-06-30
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公开(公告)号: US08261149B2公开(公告)日: 2012-09-04
- 发明人: Julien D. Pons , Patrick Duvaut , Massimo Sorbara , Yue-Peng Zheng
- 申请人: Julien D. Pons , Patrick Duvaut , Massimo Sorbara , Yue-Peng Zheng
- 申请人地址: US CA Fremont
- 专利权人: Ikanos Communications, Inc.
- 当前专利权人: Ikanos Communications, Inc.
- 当前专利权人地址: US CA Fremont
- 代理机构: Pillsbury Winthrop Shaw Pittman LLP
- 代理商 Mark J. Danielson
- 主分类号: H04L1/18
- IPC分类号: H04L1/18
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.
公开/授权文献
- US20110264978A1 Cognitive and Universal Impulse Noise Protection 公开/授权日:2011-10-27
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