专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20050195892A1 Training and updating for multiple input-output wireline communications 审中-公开
标题翻译：多输入输出有线通信的培训和更新
公开(公告)号：US20050195892A1
公开(公告)日：2005-09-08
申请号：US11053634
申请日：2005-02-08
申请人： Georgios Ginis , Raghuraman Mariappan
发明人： Georgios Ginis , Raghuraman Mariappan
IPC分类号： H04B1/38
CPC分类号： H04B3/32 , H04L25/085 , H04M3/34
摘要： The present invention provides a crosstalk mitigator for use in vectoring a digital subscriber line (DSL) system having initial crosstalk interference. In one embodiment, the crosstalk mitigator includes a crosstalk parameter estimation portion configured to determine crosstalk parameters associated with the initial crosstalk interference, and a mitigator initialization portion coupled to the crosstalk parameter estimation portion and configured to train the DSL system to provide a mitigated crosstalk based on the crosstalk parameters prior to a data transmission mode. In an alternative embodiment, the capability to detect a change in the mitigated crosstalk during the data transmission mode and update the crosstalk parameters to rectify the change in the mitigated crosstalk is provided.
摘要翻译：本发明提供一种用于向具有初始串扰干扰的数字用户线（DSL）系统的矢量化中使用的串扰减轻器。在一个实施例中，串扰减轻器包括被配置为确定与初始串扰干扰相关联的串扰参数的串扰参数估计部分，以及耦合到串扰参数估计部分并被配置为训练DSL系统以提供减轻的串扰的减轻器初始化部分关于数据传输模式之前的串扰参数。在替代实施例中，提供了在数据传输模式期间检测减轻的串扰的变化并更新串扰参数以纠正减轻的串扰的变化的能力。

2. 发明申请

US20070195871A1 Performance of DSL modem under impulse noise 审中-公开
标题翻译： DSL调制解调器在脉冲噪声下的性能
公开(公告)号：US20070195871A1
公开(公告)日：2007-08-23
申请号：US11703382
申请日：2007-02-06
申请人： Kapil Gulati , Timothy Bornemisza , Madhu Hegde , Raghuraman Mariappan
发明人： Kapil Gulati , Timothy Bornemisza , Madhu Hegde , Raghuraman Mariappan
IPC分类号： H04L5/16
CPC分类号： H04L1/0006 , H04L1/0002 , H04L1/0009 , H04L1/0057 , H04L1/0071 , H04L27/2626 , Y02D50/10
摘要： Improving performance of DSL modem under impulse noise is disclosed. A method of improving a performance of a digital subscriber line (DSL) modem having an impulse noise of long duration includes assigning a value to each of framing parameters based on a rate adaptation algorithm which considers a signal to noise ratio (SNR) of a channel coupled to the DSL modem and a number of constraints applied to the DSL modem. The method also includes generating another set of values of the framing parameters maximizing an impulse noise protection (INP) of the DSL modem while meeting the number of constraints based on a limited set of possible values of the redundancy bytes per Reed Solomon codeword (Rp) of the framing parameters and a limited collection of possible values of the interleaver depth (Dp) of the framing parameters.
摘要翻译：公开了在脉冲噪声下提高DSL调制解调器的性能。一种改善具有长时间脉冲噪声的数字用户线（DSL）调制解调器的性能的方法包括：基于考虑信道的信噪比（SNR）的速率自适应算法为每个成帧参数分配一个值耦合到DSL调制解调器和应用于DSL调制解调器的许多约束。该方法还包括生成另一组成帧参数的值，其最大化DSL调制解调器的脉冲噪声保护（INP），同时基于每个Reed Solomon码字的冗余字节的有限的一组可靠值满足约束的数量（R < 成帧参数的交织器深度的可能值的有限集合（D＆lt; P＆lt; / SUB））。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式