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1. 发明授权

US07406126B2 Implementation of smart DSL for LDSL systems 有权
标题翻译：实现LDSL系统的智能DSL
公开(公告)号：US07406126B2
公开(公告)日：2008-07-29
申请号：US10714655
申请日：2003-11-18
申请人： Patrick Duvaut , Ehud Langberg , Lujing Cai , Laurent Pierrugues , William Scholtz , Oliver Moreno , Feng Ouyang , Massimo Sorbara
发明人： Patrick Duvaut , Ehud Langberg , Lujing Cai , Laurent Pierrugues , William Scholtz , Oliver Moreno , Feng Ouyang , Massimo Sorbara
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L5/143 , H04L5/1438 , H04L27/2626 , H04Q2213/13039
摘要： Various embodiments for addressing the performance objectives of LDSL and examples of smart systems for LDSL are disclosed. An evaluation of the spectral compatibility of two LDSL modes based on two different downstream masks, identified herein as LDSL Wide and Narrow, is disclosed. Spectral compatibility is evaluated in accordance with existing rules. Other embodiments may further comprise determining features of upstream transmission.
摘要翻译：公开了用于解决LDSL的性能目标的各种实施例和用于LDSL的智能系统的示例。公开了基于两种不同下游掩模的两种LDSL模式的频谱兼容性的评估，这两种不同的下行掩码在本文中被标识为LDSL Wide和Narrow。光谱兼容性根据现有规则进行评估。其他实施例还可以包括确定上行传输的特征。

2. 发明授权

US06829251B2 System and method for increasing data capacity in communication systems 有权
标题翻译：提高通信系统数据容量的系统和方法
公开(公告)号：US06829251B2
公开(公告)日：2004-12-07
申请号：US10315743
申请日：2002-12-10
申请人： Patrick Duvaut , Ehud Langberg , William Scholtz , Laurent Pierrugues , Oliver Moreno
发明人： Patrick Duvaut , Ehud Langberg , William Scholtz , Laurent Pierrugues , Oliver Moreno
IPC分类号： H04J116
CPC分类号： H04L12/66 , H04L27/2608 , H04L27/2647 , H04L47/10 , H04L47/38 , H04M11/062 , H04Q2213/13039 , H04Q2213/13176 , H04Q2213/1319 , H04Q2213/13191 , H04Q2213/13209 , H04Q2213/13389
摘要： Systems and methods for increasing data capacity in communication systems is presented. In one embodiment, line characteristics are determined, and a downstream bandwidth is adaptively allocated in response to the determined line characteristics. In this regard, the upstream and downstream bandwidths may be seen as adaptively changing as a function of line characteristics.
摘要翻译：介绍了增加通信系统数据容量的系统和方法。在一个实施例中，确定线路特性，响应于所确定的线路特性，自适应地分配下行带宽。在这方面，上行和下行带宽可以看作是根据线路特性的自适应变化。

3. 发明授权

US07400710B2 MIMO dynamic PSD allocation for DSL networks 有权
标题翻译：用于DSL网络的MIMO动态PSD分配
公开(公告)号：US07400710B2
公开(公告)日：2008-07-15
申请号：US10808549
申请日：2004-03-25
申请人： Ehud Langberg , William Scholtz , Lujing Cai , Albert Rapaport , Shareq Rahman , Patrick Duvaut
发明人： Ehud Langberg , William Scholtz , Lujing Cai , Albert Rapaport , Shareq Rahman , Patrick Duvaut
IPC分类号： H04M1/24 , H04M3/08 , H04M3/22
CPC分类号： H04L5/023 , H04L1/0026 , H04L27/2608
摘要： A system and method for multiple inputs, multiple outputs (MIMO) PSD allocation in a DSL system is disclosed. In some embodiments, the method may comprise monitoring system performance by performing a multi-ended line test (MELT), processing the MELT and allocating PSD based on at least one of system coupling power and system traffic.
摘要翻译：公开了DSL系统中的多输入多输出（MIMO）PSD分配的系统和方法。在一些实施例中，该方法可以包括通过执行多端线路测试（MELT）来监视系统性能，处理MELT并且基于系统耦合功率和系统业务中的至少一个来分配PSD。

4. 发明申请

US20050213714A1 MIMO dynamic PSD allocation for DSL networks 有权
标题翻译：用于DSL网络的MIMO动态PSD分配
公开(公告)号：US20050213714A1
公开(公告)日：2005-09-29
申请号：US10808549
申请日：2004-03-25
申请人： Ehud Langberg , William Scholtz , Lujing Cai , Albert Rapaport , Shareq Rahman , Patrick Duvaut
发明人： Ehud Langberg , William Scholtz , Lujing Cai , Albert Rapaport , Shareq Rahman , Patrick Duvaut
IPC分类号： H04L1/00 , H04L5/02 , H04L27/26 , H04M1/24 , H04M3/08
CPC分类号： H04L5/023 , H04L1/0026 , H04L27/2608
摘要： A system and method for multiple inputs, multiple outputs (MIMO) PSD allocation in a DSL system is disclosed. In some embodiments, the method may comprise monitoring system performance by performing a multi-ended line test (MELT), processing the MELT and allocating PSD based on at least one of system coupling power and system traffic.
摘要翻译：公开了DSL系统中的多输入多输出（MIMO）PSD分配的系统和方法。在一些实施例中，该方法可以包括通过执行多端线路测试（MELT）来监视系统性能，处理MELT并且基于系统耦合功率和系统业务中的至少一个来分配PSD。

5. 发明申请

US20110200140A1 Systems and Methods for MIMO Precoding in an xDSL System 有权
标题翻译： xDSL系统中MIMO预编码的系统和方法
公开(公告)号：US20110200140A1
公开(公告)日：2011-08-18
申请号：US13091651
申请日：2011-04-21
申请人： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
发明人： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
IPC分类号： H04L25/49
CPC分类号： H04B3/32 , H04L1/0042
摘要： One embodiment is a method for precoding data for transmission in a discrete multi-tone (DMT) system to cancel self-induced far end crosstalk (self-FEXT). The method comprises learning, by the system, characteristics associated with a plurality of N users within a digital subscriber line (xDSL) system to determine an initial off-diagonal multiple input multiple output (MIMO) precoder (ODMP) for a given tone frequency and converging towards an ODMP from the initial ODMP to cancel self-FEXT for the plurality of N users, wherein the ODMP is represented as a zero diagonal matrix containing only off-diagonal terms.
摘要翻译：一个实施例是用于在离散多音（DMT）系统中预编码用于传输的数据以消除自感应远端串扰（self-FEXT）的方法。该方法包括通过系统学习与数字用户线（xDSL）系统内的多个N个用户相关联的特征，以确定给定音频的初始非对角多输入多输出（MIMO）预编码器（ODMP），以及从初始ODMP收敛到ODMP以取消多个N个用户的自身FEXT，其中ODMP被表示为仅包含非对角项的零对角矩阵。

6. 发明授权

US07957477B2 Systems and methods for MIMO precoding in an xDSL system 有权
标题翻译：用于xDSL系统中MIMO预编码的系统和方法
公开(公告)号：US07957477B2
公开(公告)日：2011-06-07
申请号：US11845040
申请日：2007-08-25
申请人： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
发明人： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
IPC分类号： H04L27/28
CPC分类号： H04B3/32 , H04L1/0042
摘要： Systems and methods for off-diagonal MIMO precoders are described. At least one embodiment includes a method for precoding data for transmission in a discrete multi-tone (DMT) xDSL system to cancel self-induced far end crosstalk (self-FEXT) comprising: learning characteristics associated with a plurality of N users within the xDSL system to determine an initial off-diagonal multiple input multiple output (MIMO) precoder (ODMP) for a given tone frequency; and converging towards an optimum ODMP from the initial ODMP in order to cancel downstream self-FEXT for the plurality of N users, wherein the ODMP is represented as a zero diagonal matrix with only off-diagonal terms, and wherein the converging towards the optimum ODMP comprises: maximizing the channel capacity for the plurality of N users for the given tone frequency; and minimizing an increase in transmit power of the xDSL system relative to an original transmit power where a precoder is not active.
摘要翻译：描述了非对角MIMO预编码器的系统和方法。至少一个实施例包括用于预编码用于在离散多音（DMT）xDSL系统中传输的数据以消除自感应远端串扰（self-FEXT）的方法，包括：与xDSL内的多个N个用户相关联的学习特征系统确定用于给定音频的初始非对角多输入多输出（MIMO）预编码器（ODMP）; 并从最初的ODMP收敛到最佳的ODMP，以消除多个N个用户的下游自身FEXT，其中ODMP被表示为只有非对角项的零对角矩阵，并且其中朝向最佳ODMP 包括：使给定音调频率的多个N个用户的信道容量最大化; 并且最小化xDSL系统相对于预编码器不活动的原始发射功率的发射功率的增加。

7. 发明申请

US20080049855A1 Systems and Methods for MIMO Precoding in an xDSL System 有权
标题翻译： xDSL系统中MIMO预编码的系统和方法
公开(公告)号：US20080049855A1
公开(公告)日：2008-02-28
申请号：US11845040
申请日：2007-08-25
申请人： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
发明人： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
IPC分类号： H04L27/28
CPC分类号： H04B3/32 , H04L1/0042
摘要： Systems and methods for off-diagonal MIMO precoders are described. At least one embodiment includes a method for precoding data for transmission in a discrete multi-tone (DMT) xDSL system to cancel self-induced far end crosstalk (self-FEXT) comprising: learning characteristics associated with a plurality of N users within the xDSL system to determine an initial off-diagonal multiple input multiple output (MIMO) precoder (ODMP) for a given tone frequency; and converging towards an optimum ODMP from the initial ODMP in order to cancel downstream self-FEXT for the plurality of N users, wherein the ODMP is represented as a zero diagonal matrix with only off-diagonal terms, and wherein the converging towards the optimum ODMP comprises: maximizing the channel capacity for the plurality of N users for the given tone frequency; and minimizing an increase in transmit power of the xDSL system relative to an original transmit power where a precoder is not active.
摘要翻译：描述了非对角MIMO预编码器的系统和方法。至少一个实施例包括用于预编码用于在离散多音（DMT）xDSL系统中传输的数据以消除自感应远端串扰（self-FEXT）的方法，包括：与xDSL内的多个N个用户相关联的学习特征系统确定用于给定音频的初始非对角多输入多输出（MIMO）预编码器（ODMP）; 并从最初的ODMP收敛到最佳的ODMP，以消除多个N个用户的下游自身FEXT，其中ODMP被表示为只有非对角项的零对角矩阵，并且其中朝向最佳ODMP 包括：使给定音调频率的多个N个用户的信道容量最大化; 并且最小化xDSL系统相对于预编码器不活动的原始发射功率的发射功率的增加。

8. 发明授权

US07738541B2 Enhanced smart DSL systems for LDSL 失效
标题翻译：增强的LDSL智能DSL系统
公开(公告)号：US07738541B2
公开(公告)日：2010-06-15
申请号：US10714660
申请日：2003-11-18
申请人： Patrick Duvaut , Lujing Cai , Massimo Sorbara
发明人： Patrick Duvaut , Lujing Cai , Massimo Sorbara
IPC分类号： H04B1/38 , H04L5/16
CPC分类号： H04L12/2854 , H04Q2213/13039
摘要： A “Smart DSL System” for addressing the performance objectives of LDSL and examples of smart systems for LDSL are disclosed. In accordance with embodiments of the invention, there is disclosed a method for implementing smart DSL for LDSL systems. Embodiments of the method include presenting a number of spectral masks that are available on the LDSL system, and selecting from the number of spectral masks an upstream mask and a downstream mask wherein the upstream mask and the downstream mask exhibit complimentary features.
摘要翻译：公布了用于解决LDSL性能目标的“智能DSL系统”和LDSL智能系统的示例。根据本发明的实施例，公开了一种用于实现LDSL系统的智能DSL的方法。该方法的实施例包括呈现在LDSL系统上可用的多个频谱掩模，以及从频谱掩模的数量中选择上游掩模和下游掩模，其中上游掩码和下游掩模具有互补特征。

9. 发明授权

US08194767B2 Systems and methods for MIMO precoding in an xDSL system 有权
标题翻译：用于xDSL系统中MIMO预编码的系统和方法
公开(公告)号：US08194767B2
公开(公告)日：2012-06-05
申请号：US13091651
申请日：2011-04-21
申请人： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
发明人： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
IPC分类号： H04L27/28
CPC分类号： H04B3/32 , H04L1/0042
摘要： One embodiment is a method for precoding data for transmission in a discrete multi-tone (DMT) system to cancel self-induced far end crosstalk (self-FEXT). The method comprises learning, by the system, characteristics associated with a plurality of N users within a digital subscriber line (xDSL) system to determine an initial off-diagonal multiple input multiple output (MIMO) precoder (ODMP) for a given tone frequency and converging towards an ODMP from the initial ODMP to cancel self-FEXT for the plurality of N users, wherein the ODMP is represented as a zero diagonal matrix containing only off-diagonal terms.
摘要翻译：一个实施例是用于在离散多音（DMT）系统中预编码用于传输的数据以消除自感应远端串扰（self-FEXT）的方法。该方法包括通过系统学习与数字用户线（xDSL）系统内的多个N个用户相关联的特征，以确定给定音频的初始非对角多输入多输出（MIMO）预编码器（ODMP），以及从初始ODMP收敛到ODMP以取消多个N个用户的自身FEXT，其中ODMP被表示为仅包含非对角项的零对角矩阵。

10. 发明授权

US07764752B2 Method and system for reducing interferences due to handshake tones 失效
标题翻译：用于减少握手音干扰的方法和系统
公开(公告)号：US07764752B2
公开(公告)日：2010-07-27
申请号：US10672079
申请日：2003-09-29
申请人： Ehud Langberg , Patrick Duvaut , Peter Kleewein , Wolfgang Kleewein, legal representative , Laurent Pierrugues
发明人： Ehud Langberg , Patrick Duvaut , Peter Kleewein , Laurent Pierrugues
IPC分类号： H03D1/04 , H04B1/10
CPC分类号： H04L5/16 , H04B3/32 , H04L5/023
摘要： A method and system of the present inventions reduces both near-end crosstalk (NEXT) and far-end crosstalk (FEXT) interferences due to handshake tones into upstream and downstream neighboring services, both at the customer premises equipment (CPE) and at the central office (CO), when handshake is experienced. An embodiment of the present inventions is directed to significantly reduce the NEXT and/or FEXT interferences due to handshake tones. For example, NEXT and/or FEXT interferences due to G.994.1 handshake tones, identified as, bins 7 and 9 for the Upstream channel and bins 12, 14 and 64 for the Downstream channel may be reduced. An embodiment of the present inventions provides an algorithm that may be used for both NEXT and FEXT Handshake Interferences reduction at the CO and at the CPE. In addition, the algorithm may operate in the time domain and in the frequency domain. Frequency domain algorithm offers two options, both versions taking advantage of the high correlation time of the Handshake tone signals.
摘要翻译：本发明的方法和系统将客户端设备（CPE）和中央处理器（CPE）处的上下游相邻服务期间由于握手音调的近端串扰（NEXT）和远端串扰（FEXT）干扰减少办公室（CO），握手时经历。本发明的实施例旨在显着地减少由于握手音而引起的NEXT和/或FEXT干扰。例如，可以减少由于G.994.1握手音调而导致的NEXT和/或FEXT干扰，被识别为用于上行信道的分组7和9以及用于下行信道的分组12,14和64。本发明的一个实施例提供了一种算法，其可以用于在CO和CPE处的NEXT和FEXT握手干扰减少。另外，该算法可以在时域和频域中操作。频域算法提供两个选项，两个版本利用握手音信号的高相关时间。

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