公开(公告)号：US07813420B2

公开(公告)日：2010-10-12

申请号：US11336113

申请日：2006-01-20

申请人： John M. Cioffi ,  Wonjong Rhee ,  Bin Lee ,  Georgios Ginis

发明人： John M. Cioffi ,  Wonjong Rhee ,  Bin Lee ,  Georgios Ginis

IPC分类号： H03H7/30 ,  H03H7/40

CPC分类号： H04L25/03057 ,  H04L25/03146 ,  H04L25/03305 ,  H04L27/2601 ,  H04L2025/0349

摘要： Adaptive generalized decision feedback equalization (GDFE) allows variations in one or more channels and noise of a multi-line/multi-channel communication system to be tracked. Such tracking can be used in vector upstream (one-sided) situations in communication systems such as ADSL and VDSL, among others. The GDFE may be separated into adaptive and static portions and/or components. Either a feedforward section or a feedback section (or both) can be separated to create a static component and an adaptive component. The adaptive components adjust to the instantaneous channel and noise changes (for example, using the instantaneous errors and simple LMS algorithms). When the channel and noise do not exhibit any time-variation, the adaptive filters can zero themselves. Local updating of adaptive feedforward and/or feedback filters addresses rapid changes to the spatial correlation of noise and/or changes to the multi-line channel (for example, time-variation due to temperature changes, component variations, mechanical stress, and other reasons), without disruption to separate static feedforward and/or feedback filters supplied by a controller, such as a DSL optimizer or the like that can assist by doing the heavier calculations and providing vectoring information and data to the DSL line components. An efficient implementation is provided of any triangularization of the binder channel that characterizes multi-user vectored-DMT DSL. Adaptation also allows correction of any inaccuracy in initially or previously reported crosstalk transfer functions and noise spatial correlation.

摘要翻译： 自适应广义判决反馈均衡（GDFE）允许跟踪多线/多通道通信系统的一个或多个信道和噪声的变化。 这样的跟踪可以用于诸如ADSL和VDSL之类的通信系统中的向量上行（单向）情况。 GDFE可以分成自适应和静态部分和/或部件。 可以分离前馈部分或反馈部分（或两者）以创建静态组件和自适应组件。 自适应组件调整到瞬时通道和噪声变化（例如，使用瞬时误差和简单的LMS算法）。 当信道和噪声不显示任何时间变化时，自适应滤波器可以自己归零。 自适应前馈和/或反馈滤波器的本地更新解决了噪声和/或多线路信道变化的空间相关性的快速变化（例如，由于温度变化，组件变化，机械应力和其他原因引起的时间变化 ），而不会破坏由控制器（例如DSL优化器等）提供的分离的静态前馈和/或反馈滤波器，其可以通过进行较重的计算并向DSL线路部件提供向量化信息和数据来辅助。 提供表征多用户向量DMT DSL的绑定通道的任何三角化的有效实现。 适应还允许校正初始或先前报告的串扰传递函数和噪声空间相关性中的任何不准确性。

公开(公告)号：US20080205501A1

公开(公告)日：2008-08-28

申请号：US11995194

申请日：2006-07-08

申请人： John M. Cioffi ,  Wonjong Rhee ,  Bin Lee ,  Seong Taek Chung ,  Georgios Ginis

发明人： John M. Cioffi ,  Wonjong Rhee ,  Bin Lee ,  Seong Taek Chung ,  Georgios Ginis

IPC分类号： H04B17/00 ,  H04B3/46 ,  H04Q1/20

CPC分类号： H04L41/145 ,  H04L41/0213 ,  H04L41/0803 ,  H04L41/0853 ,  H04M3/2209 ,  H04M3/2263 ,  H04M3/247 ,  H04M11/062

摘要： Estimates of a communication system configuration, such as a DSL system, are based on operational data collected from a network element management system, protocol and users. The operational data collected from the system can include performance-characterizing operational data that typically is available in the OSL system via element-management-system protocols. Generated estimates and/or approximations can be used in evaluating system performance and directly or indirectly dictating/requiring changes or recommending improvements in operation by transmitters and/or other parts of the indication system. Data and/or other information may be collected using internal means or using system elements and components via e-mail and/or other extra means. The likelihood of the models accuracy can be based on various data, information and/or indicators of system performance, such as observed normal operational data, test data and/or prompted operational data that shows operating performance based on stimulation signals.

摘要翻译： 诸如DSL系统的通信系统配置的估计是基于从网元管理系统，协议和用户收集的操作数据。 从系统收集的操作数据可以包括通过元件管理系统协议通常在OSL系统中可用的性能特征的操作数据。 生成的估计和/或近似值可以用于评估系统性能，并且直接或间接地指示/要求改变或者通过发射机和/或指示系统的其它部分来推荐改进操作。 数据和/或其他信息可以使用内部手段或通过电子邮件和/或其他额外手段使用系统元件和组件来收集。 模型精确度的可能性可以基于系统性能的各种数据，信息和/或指示符，例如观察到的正常操作数据，测试数据和/或显示基于刺激信号的操作性能的提示操作数据。

公开(公告)号：US08310914B2

公开(公告)日：2012-11-13

申请号：US12853209

申请日：2010-08-09

申请人： John M. Cioffi ,  Bin Lee ,  Wonjong Rhee ,  Georgios Ginis

发明人： John M. Cioffi ,  Bin Lee ,  Wonjong Rhee ,  Georgios Ginis

IPC分类号： H04L5/20

CPC分类号： H04L5/20 ,  H04B3/32

摘要： Superimposing phantom-mode signals reinforces existing differentially driven DSL downstream signals in a vectored binder of DSLs or reinforces upstream vectored signals in a binder of differentially excited twisted pairs, thus expanding the extra transmission modes of the previous GDSL multi-wire two-sided-excitation invention to the case where coordination can only occur on one-side of the binder. Each pair is treated as a common-mode antenna with respect to earth ground, with some pairs selectively excited at the transformer center tap at the transmit end with respect to a common (earth or chassis) ground reference. Corresponding receivers on other non-excited pairs sense the signals between their center taps and a ground at the opposite ends of the lines to the exciting transmitters. A dual use with hybrid circuits allows the receiving circuit to also have an upstream transmitter and an upstream-sensing receiver on the center tap of the opposite side of an adjacent wire.

摘要翻译： 叠加幻像模式信号加强了DSL的向量绑定器中现有的差分驱动的DSL下行信号，或加强了差分激励双绞线的绑定器中的上游矢量信号，从而扩展了先前的GDSL多线双向激励的额外传输模式 发明到只能在粘合剂的一面上进行配位的情况。 每对被视为相对于接地的共模天线，一些对在相对于公共（接地或底盘）接地参考的发射端处的变压器中心抽头处选择性激励。 在其他非激励对上的对应的接收器检测它们的中心抽头之间的信号和在激励发射器的线的相对端的接地。 与混合电路的双重用途允许接收电路在相邻线的相对侧的中心抽头上还具有上游发射器和上游感测接收器。

公开(公告)号：US08073135B2

公开(公告)日：2011-12-06

申请号：US11342028

申请日：2006-01-28

申请人： Wonjong Rhee ,  Bin Lee ,  Iker Almandoz ,  John M. Cioffi ,  Georgios Ginis

发明人： Wonjong Rhee ,  Bin Lee ,  Iker Almandoz ,  John M. Cioffi ,  Georgios Ginis

IPC分类号： H04M9/00

CPC分类号： H04M11/062 ,  H04B3/487 ,  H04M3/304

摘要： Methods, techniques and apparatus identify members and characteristics of binders and/or other groups of communication lines such as those in a DSL system. Information obtained includes the identification (for example, by scanning) of significant crosstalking “offenders” and their “victims” that are affected by the crosstalk. One or a small number of modems are instructed to transmit with preselected transmit spectra, after which evidence of crosstalk in the noise spectrum data is examined for potential victim lines. Direct evidence of noise spectrum contribution by a suspected offender line may be obtained by collecting reported noise spectrum data and/or estimated noise spectrum data from potential victim lines. Also, where such direct evidence is not available, or in addition to it, other operational data showing crosstalk interference relating to potential victim lines can be used. The transmitting modem can either be on the CO/RT side or on the CPE side. Modems other than suspected offenders might transmit zero or minimal power in one or more selected frequency bands during scanning to reduce the risk that a modem and/or line not being examined for “offender” status supplies unnecessarily complicating and/or dominant crosstalk during the procedure. For DMT modulated DSL transceivers, well designed transmit spectra can be easily enforced by manipulating line profiles where such well designed line profiles cause minimal or no interruption to existing DSL customers. The invention also can be used to identify (partially or fully) the absolute values of crosstalk channels making up a channel transfer function.

摘要翻译： 方法，技术和装置识别绑定器和/或诸如DSL系统中的那些通信线路的其他组的成员和特征。 获得的信息包括受串扰影响的重要串扰“罪犯”及其“受害者”的识别（例如，扫描）。 指示一个或少数调制解调器以预选的发送频谱进行发送，之后检查噪声频谱数据中的串扰的可能的受害线路。 通过从潜在受害者线收集报告的噪声频谱数据和/或估计的噪声频谱数据，可以获得可疑罪犯线的噪声频谱贡献的直接证据。 此外，如果这种直接证据不可用，或除此之外，可以使用显示与潜在受害者线路相关的串扰干扰的其他操作数据。 发射调制解调器可以在CO / RT侧或CPE侧。 除了怀疑罪犯之外的调制解调器可能会在扫描过程中在一个或多个所选频段内传输零或最小功率，以降低在程序中调制解调器和/或线路未被检查为“罪犯”状态提供不必要的复杂和/或显性串扰的风险 。 对于DMT调制的DSL收发器，可以通过操纵线路配置文件轻松实施精心设计的发射频谱，其中这种精心设计的线路配置文件对现有DSL客户端造成最小或不中断。 本发明还可以用于识别（部分地或完全地）构成信道传递函数的串扰信道的绝对值。

公开(公告)号：US20110188640A1

公开(公告)日：2011-08-04

申请号：US13084829

申请日：2011-04-12

申请人： John M. Cioffi ,  Wonjong Rhee ,  Bin Lee ,  Seong Taek Chung ,  Georgios Ginis

发明人： John M. Cioffi ,  Wonjong Rhee ,  Bin Lee ,  Seong Taek Chung ,  Georgios Ginis

IPC分类号： H04M1/24

CPC分类号： H04L41/145 ,  H04L41/0213 ,  H04L41/0803 ,  H04L41/0853 ,  H04M3/2209 ,  H04M3/2263 ,  H04M3/247 ,  H04M11/062

摘要： Estimates of a communication system configuration, such as a DSL system, are based on operational data collected from a network element management system, protocol and users. The operational data collected from the system can include performance-characterizing operational data that typically is available in the OSL system via element-management-system protocols. Generated estimates and/or approximations can be used in evaluating system performance and directly or indirectly dictating/requiring changes or recommending improvements in operation by transmitters and/or other parts of the indication system. Data and/or other information may be collected using internal means or using system elements and components via e-mail and/or other extra means. The likelihood of the models accuracy can be based on various data, information and/or indicators of system performance, such as observed normal operational data, test data and/or prompted operational data that shows operating performance based on stimulation signals.

摘要翻译： 诸如DSL系统的通信系统配置的估计基于从网元管理系统，协议和用户收集的操作数据。 从系统收集的操作数据可以包括通过元件管理系统协议通常在OSL系统中可用的性能特征的操作数据。 生成的估计和/或近似值可以用于评估系统性能，并且直接或间接地指示/要求改变或者通过发射机和/或指示系统的其它部分来推荐改进操作。 数据和/或其他信息可以使用内部手段或通过电子邮件和/或其他额外手段使用系统元件和组件来收集。 模型精确度的可能性可以基于系统性能的各种数据，信息和/或指示符，例如观察到的正常操作数据，测试数据和/或显示基于刺激信号的操作性能的提示操作数据。

公开(公告)号：US07881438B2

公开(公告)日：2011-02-01

申请号：US11341969

申请日：2006-01-28

申请人： John M. Cioffi ,  Wonjong Rhee ,  Bin Lee ,  Iker Almandoz ,  Georgios Ginis

发明人： John M. Cioffi ,  Wonjong Rhee ,  Bin Lee ,  Iker Almandoz ,  Georgios Ginis

IPC分类号： H04M1/24 ,  H04M3/08 ,  H04M3/22

CPC分类号： H04M3/247 ,  H04M3/304 ,  H04M11/062 ,  H04M2201/12 ,  H04M2201/36

摘要： A self-learning and/or self-adjusting communication controller and/or optimizer uses operational data collected from a communication system to adjust operation of the communication system to changing operational, environmental, etc. conditions and, in some embodiments, to customize operation of the communication system's lines and components so that their performance can be controlled, improved and/or optimized. In various embodiments, operational parameters and/or rules are established and/or adjusted based on information obtained from the system concerning the system's operation; information regarding margins used by a DSL system and code violation counts reported by the DSL system are used to set margin levels for one or more line sets (each line set including an individual line, a group of lines, a binder, etc.) and/or other users and/or components of the DSL system; and, the controller and/or optimizer forces a small number of test lines into as yet un-experienced and/or unimplemented operational conditions so that new knowledge can be obtained.

摘要翻译： 自学习和/或自调整通信控制器和/或优化器使用从通信系统收集的操作数据来调整通信系统的操作以改变操作，环境等条件，并且在一些实施例中，定制操作 通信系统的线路和组件，使其性能得到控制，改进和/或优化。 在各种实施例中，基于从系统获得的关于系统操作的信息建立和/或调整操作参数和/或规则; 关于DSL系统使用的边距和DSL系统报告的代码违规计数的信息用于设置一个或多个线路组（每个线路组，包括单线，一组线路，绑带等）的边缘水平，以及 /或DSL系统的其他用户和/或组件; 并且，控制器和/或优化器迫使少数测试线进入尚未经验和/或未被实现的操作条件，从而可以获得新的知识。

公开(公告)号：US09819388B2

公开(公告)日：2017-11-14

申请号：US13254454

申请日：2009-03-04

申请人： Mark B. Flowers ,  Mark Mallory ,  Mark Brady ,  John M. Cioffi ,  Mehdi Mohseni

发明人： Mark B. Flowers ,  Mark Mallory ,  Mark Brady ,  John M. Cioffi ,  Mehdi Mohseni

IPC分类号： H04L25/08 ,  H04B3/32 ,  H04B1/7107 ,  H04N7/10 ,  H04J11/00 ,  H04L27/26

CPC分类号： H04B3/32 ,  H04B1/7107 ,  H04J11/004 ,  H04L27/2647 ,  H04N7/102

摘要： A method and apparatus in a noise cancellation system that receives a noise reference signal via a noise reference signal input port, and performs at least one of procedures a and b set forth below for reducing noise in a DSL data signal transmitted on a DSL transmission line to which the noise cancellation system is coupled: a.i.) creating a noise free representation of a DSL synchronization symbol repeatedly occurring in the transmitted DSL data signal, and a.ii.) reducing the noise in the transmitted DSL data signal based on the noise free representation of the DSL synchronization symbol and the received noise reference signal, and b.i.) analyzing at least one of the received noise reference signal and the transmitted DSL data signal to identify one or more frequency bands in which to de-emphasize noise cancellation in the transmitted DSL data signal, and b.ii.) causing the noise cancellation system to de-emphasize noise cancellation in the identified one or more frequency bands of the transmitted DSL data signal, responsive to the analysis.

公开(公告)号：US20150124891A1

公开(公告)日：2015-05-07

申请号：US14399151

申请日：2012-05-07

申请人： Chan-Soo Hwang ,  Mithat Dogan ,  John M. Cioffi ,  Mark B. Flowers ,  Sina Barkeshli

发明人： Chan-Soo Hwang ,  Mithat Dogan ,  John M. Cioffi ,  Mark B. Flowers ,  Sina Barkeshli

IPC分类号： H04L1/00 ,  H04M3/00 ,  H04M3/22 ,  H04L1/20

CPC分类号： H04L1/0015 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/0026 ,  H04L1/20 ,  H04L2001/0093 ,  H04M3/007 ,  H04M3/2209

摘要： In accordance with embodiments disclosed herein, there are provided apparatus, systems and methods for impulse noise detection and mitigation. For example, in one embodiment such means include, means for detecting impulse noise; means for classifying the detected impulse noise into one of a plurality of impulse noise classes affecting communications on a Digital Subscriber Line (DSL line); means for selecting a noise mitigation strategy from among a plurality of noise mitigation strategies; means for applying the selected noise mitigation strategy; and means for validating application of the noise mitigation strategy.

摘要翻译： 根据本文公开的实施例，提供了用于脉冲噪声检测和减轻的装置，系统和方法。 例如，在一个实施例中，这种装置包括用于检测脉冲噪声的装置; 用于将检测到的脉冲噪声分类为影响数字用户线路（DSL线路）上的通信的多个脉冲噪声类别之一的装置; 用于从多个噪声缓解策略中选择噪声缓解策略的手段; 用于应用所选择的噪声缓解策略的手段; 以及用于验证噪声缓解策略的应用的手段。

公开(公告)号：US20140133539A1

公开(公告)日：2014-05-15

申请号：US14162133

申请日：2014-01-23

申请人： John M. Cioffi ,  Wonjong Rhee ,  Georgios Ginis ,  Sumanth Jagannathan

发明人： John M. Cioffi ,  Wonjong Rhee ,  Georgios Ginis ,  Sumanth Jagannathan

IPC分类号： H04L1/20

CPC分类号： H04L1/20 ,  H04B1/1027 ,  H04B3/32 ,  H04L41/0213 ,  H04L43/0823 ,  H04L43/16 ,  H04M3/2209 ,  H04M3/30

摘要： Data indicative of a level of stability of a DSL link is received. Based on the received data, it is determined whether the data indicates a level of stability of the DSL link that is above or below and minimum threshold. If the level of stability of the DSL link is below the minimum threshold, die noise associated with the DSL link before the time of failure is compared with the noise of failure. If the difference between the noise before and after the time of failure exceeds a threshold, then the difference in noise is characterized as a stationary noise associated with the DSL link. However, if the difference between the noise before and after the time of failure is below the threshold, a determination is made whether the failure is associated with a loss of power to the DSL link or a severe impulse noise event the difference in noise is characterized accordingly. Finally, the characterization of the noise associated with the DSL link is preserved for subsequent possible reconfiguration of the DSL link to improve link stability.

摘要翻译： 接收到指示DSL链路的稳定性水平的数据。 基于接收到的数据，确定数据是否指示DSL链路的稳定度高于或低于最小阈值。 如果DSL链路的稳定度低于最小阈值，则与故障之前的DSL链路相关联的模块噪声与故障噪声进行比较。 如果故障之前和之后的噪声之间的差异超过阈值，则噪声的差异被表征为与DSL链路相关联的稳定的噪声。 然而，如果在故障之前和之后的噪声之间的差异低于阈值，则确定故障是否与DSL链路的功率损耗相关联或严重脉冲噪声事件，噪声的差异被表征 相应地。 最后，保留与DSL链路相关联的噪声的表征，以便随后可能重新配置DSL链路以改善链路稳定性。

公开(公告)号：US07428669B2

公开(公告)日：2008-09-23

申请号：US10795593

申请日：2004-03-08

申请人： John M. Cioffi

发明人： John M. Cioffi

IPC分类号： G06F11/00

CPC分类号： H04L1/0057 ,  H04B3/32 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0019 ,  H04L1/0071 ,  H04L12/2856 ,  H04L12/2874 ,  H04L12/2898 ,  H04L12/6418 ,  H04L27/2608 ,  H04L41/0806 ,  H04L41/0853 ,  H04L41/142 ,  H04L43/00 ,  H04L43/0829 ,  H04L43/0847 ,  H04L43/0888 ,  H04L43/0894 ,  H04L43/106 ,  H04L43/16 ,  H04L2012/6478 ,  H04M3/2209 ,  H04M3/30 ,  H04M3/304 ,  H04M3/34 ,  H04M11/062

摘要： Adaptive FEC coding is used to adjust the codeword composition of FEC codewords in a communication system. A codeword composition ratio may be adjusted in response to variance of a measured transmission error value from a target transmission error value in the system. The codeword composition ratio may be any quantity or value that represents the relation between the payload and parity bytes in the applicable FEC coding scheme. Adjustment of the codeword composition ratio may be adjusting parameters such as the N, K and/or R values in ADSL1 systems or the INP and/or maximum interleaving delay values in ADSL2 systems. A controller may be used to monitor, analyze and adjust the various values used in adaptively managing FEC coding. The present invention may be implemented in a transmission system in which a transmitter transmits data to a receiver via a transmission channel, such as a DSL system.

摘要翻译： 自适应FEC编码用于调整通信系统中FEC码字的码字组成。 可以响应于来自系统中的目标传输误差值的测量的传输误差值的变化来调整码字组成比。 码字组成比可以是表示可应用的FEC编码方案中有效负载和奇偶校验字节之间的关系的任何数量或值。 代码字组成比的调整可以是调整ADSL1系统中的N，K和/或R值或ADSL2系统中的INP和/或最大交织延迟值的参数。 可以使用控制器来监视，分析和调整在自适应地管理FEC编码中使用的各种值。 本发明可以在传输系统中实现，其中发射机经由诸如DSL系统的传输信道向接收机发送数据。