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    Crosstalk agent for access network nodes
    5.
    发明申请
    Crosstalk agent for access network nodes 审中-公开
    用于接入网络节点的串扰代理

    公开(公告)号：US20060039456A1

    公开(公告)日：2006-02-23

    申请号：US11188001

    申请日：2005-07-25

    申请人： Tom Bostoen ,  Peter Luyten ,  Katleen Van Acker

    发明人： Tom Bostoen ,  Peter Luyten ,  Katleen Van Acker

    IPC分类号： H04B1/38

    CPC分类号： H04B3/46 ,  H04L12/66 ,  H04L27/2601 ,  H04L41/0213 ,  H04L41/046

    摘要： A crosstalk agent for integration in or connection to an access node (DSLAM) automatically gathers quantitative information indicative for the crosstalk coupling between lines (LINE1, LINE2, LINE3, LINE4) connected to the access node (DSLAM). The information may be extracted from an access node MIB each time the on/off state of a line changes, and optionally is used to group the lines in virtual binders. The crosstalk agent may optionally interface with service deployment or service upgrade experts, or with a dynamic spectrum management module in the access node (DSLAM).

    摘要翻译： 用于集成或连接到接入节点（DSLAM）的串扰代理自动收集指示连接到接入节点（DSLAM）的线路（线路1，线路2，线路3，线路4）之间的串扰耦合的定量信息。 每当线路的开/关状态改变时，可以从接入节点MIB中提取信息，并且可选地用于在虚拟绑定器中对线进行分组。 串扰代理可以可选地与服务部署或服务升级专家或与接入节点（DSLAM）中的动态频谱管理模块接口。

    Method for determining crosstalk coupling and crosstalk determining unit for integration in digital data transmission systems
    7.
    发明申请
    Method for determining crosstalk coupling and crosstalk determining unit for integration in digital data transmission systems 有权
    用于确定用于集成在数字数据传输系统中的串扰耦合和串扰确定单元的方法

    公开(公告)号：US20070047631A1

    公开(公告)日：2007-03-01

    申请号：US11510828

    申请日：2006-08-28

    申请人： Tom Bostoen ,  Geert Ysebaert

    发明人： Tom Bostoen ,  Geert Ysebaert

    IPC分类号： H04L5/16

    CPC分类号： H04B3/487

    摘要： A method for determining crosstalk coupling between a plurality of transmission lines in digital data transmission systems, in particular DSL networks. Firstly, at least one test signal (TS) is generated having a unique identification code (UIC) in the frequency domain (f), said code (UIC) being associated with a first transmission line. Then, the test signal (TS) is sent on the first transmission line. At least a second transmission line is monitored for detecting a crosstalk signal. It is determined whether the crosstalk signal is caused by the test signal (TS) of the first transmission line by means of a signature of the unique identification code (UIC) comprised in the crosstalk signal. In this way crosstalk between individual transmission lines can be determined without having to have recourse to conservative worst case assumptions. The method can adapt dynamically to a changing user/transmission environment, while obtaining unique crosstalk determination results at all times.

    摘要翻译： 一种用于确定数字数据传输系统，特别是DSL网络中的多个传输线之间的串扰耦合的方法。 首先，生成在频域（f）中具有唯一识别码（UIC）的至少一个测试信号（TS），所述码（UIC）与第一传输线相关联。 然后，在第一传输线上发送测试信号（TS）。 监视至少第二传输线路以检测串扰信号。 通过包含在串扰信号中的唯一识别码（UIC）的签名来确定串扰信号是否由第一传输线的测试信号（TS）引起。 以这种方式，可以确定各个传输线之间的串扰，而无需求助于保守的最坏情况假设。 该方法可以动态地适应不断变化的用户/传输环境，同时在任何时候都能获得唯一的串扰确定结果。

    Signal pre-processing for estimating attributes of a transmission line
    8.
    发明授权
    Signal pre-processing for estimating attributes of a transmission line 有权
    用于估计传输线属性的信号预处理

    公开(公告)号：US06909978B2

    公开(公告)日：2005-06-21

    申请号：US10686580

    申请日：2003-10-17

    申请人： Tom Bostoen ,  Thierry Pollet ,  Patrick Jan Maria Boets ,  Leonard Pierre Van Biesen

    发明人： Tom Bostoen ,  Thierry Pollet ,  Patrick Jan Maria Boets ,  Leonard Pierre Van Biesen

    IPC分类号： G01R27/06 ,  G01R31/11 ,  H04B3/46 ,  H04B17/00

    CPC分类号： H04B3/46 ,  G01R27/06 ,  G01R31/11

    摘要： In the process of estimating attributes of a transmission line from reflectometry measurements, small yet important reflections may be drowned in the immediate reflected signal owing to the mismatch between the reference impedance with respect to which the 1-port scattering parameter of the line has been determined and the characteristic impedance of the line.The major part of the near-end reflections are eliminated by estimating the characteristic impedance of the line, and by converting the 1-port scattering parameter of the line from the reference impedance base to the estimated characteristic impedance base.However, there is still a residual influence of the near-end reflections. It is then highly necessary to determine a time zone wherein the residual near-end reflections are enclosed so as their contribution is further neutralized in the process of estimating attributes of the transmission line.

    摘要翻译： 在从反射测量测量估计传输线的属性的过程中，由于已经确定了线的1端口散射参数的参考阻抗之间的不匹配，可能在立即反射信号中淹没小而重要的反射 和线路的特性阻抗。 通过估计线路的特征阻抗，并将线路的1端口散射参数从参考阻抗基极转换为估计的特性阻抗基，消除近端反射的主要部分。 然而，近端反射仍然存在剩余影响。 因此，非常需要确定其中封闭剩余近端反射的时区，以便在估计传输线的属性的过程中进一步中和它们的贡献。

    System and method for upstream power backoff for xDSL
    9.
    发明授权
    System and method for upstream power backoff for xDSL 有权
    用于xDSL的上游功率回退的系统和方法

    公开(公告)号：US07664254B2

    公开(公告)日：2010-02-16

    申请号：US10261486

    申请日：2002-10-02

    申请人： Tom Bostoen ,  Thierry Pollet

    发明人： Tom Bostoen ,  Thierry Pollet

    IPC分类号： H04M1/24

    CPC分类号： H04B3/487

    摘要： A method and apparatus for modeling a network comprising a plurality of transmission lines is described, the method and system being adapted to measure loop parameters of first transmission line to provide measured loop parameters, determine a topology of the first transmission line by analyzing the measured loop parameters with reference to at least a one model of a plurality of models for transmission lines of different topologies, select a further model for estimating crosstalk related parameters based on the determined topology, and estimate at least one crosstalk related parameter based on the determined topolgy and the selected further model.

    摘要翻译： 描述了一种用于对包括多个传输线的网络建模的方法和装置，所述方法和系统适于测量第一传输线的环路参数以提供测量的环路参数，通过分析测量的环路来确定第一传输线的拓扑 参考用于不同拓扑的传输线的多个模型的至少一个模型的参数，基于所确定的拓扑选择用于估计串扰相关参数的另一模型，并基于所确定的拓扑和估计至少一个串扰相关参数，以及 所选的其他模型。

    Method for matching an adaptive hybrid to a line
    10.
    发明授权
    Method for matching an adaptive hybrid to a line 有权
    将自适应混合信号与线路匹配的方法

    公开(公告)号：US07167555B2

    公开(公告)日：2007-01-23

    申请号：US10991487

    申请日：2004-11-19

    申请人： Tom Bostoen ,  Thierry Pollet ,  Patrick Jan Maria Boets ,  Leonard Pierre Van Biesen

    发明人： Tom Bostoen ,  Thierry Pollet ,  Patrick Jan Maria Boets ,  Leonard Pierre Van Biesen

    IPC分类号： H04M9/00

    CPC分类号： G01R27/04

    摘要： Methods for matching adaptive hybrids (15) to lines (16) for making reflectograms of the lines (16) measure (1) input impedances (Zmeas) of the lines (16), model (2) characteristic impedances of the lines (16) via physical models (Zphymod), estimate (3) parameters of the physical models (Zphymod) via cost functions which depend on the measured input impedances (Zmeas), convert (30) the modelled characteristic impedances into impedance values (13), and set (31) the adaptive hybrids (15) with the impedance values (13). Unwanted near-end reflections are minimised and wanted reflections can be measured. The physical models depend on frequencies s, Bessel functions Ji and parameters ai related to geometrical dimensions A, D and L and material constants σ, ε and μ of the lines (16). The method may further model (6) characteristic impedances of the lines (16) via rational function models (Zrafumod) and estimate (7) parameters of the rational function models (Zrafumod) via further cost functions which depend on outcomes of the physical models (Zphymod).

    摘要翻译： 将自适应混合（15）与线路（16）匹配以使线路（16）的反射图匹配的方法测量（1）线路（16），模型（2）的输入阻抗（Z 通过物理模型（Z> phymod ）的线路（16）的特征阻抗，经由成本函数来估计（3）物理模型（Z ）的参数， 测量的输入阻抗（Z ）将模拟的特征阻抗转换（30）成阻抗值（13），并用阻抗值（13）将自适应混合（15）设置（31）。 不需要的近端反射被最小化，并且可以测量想要的反射。 物理模型取决于频率s，贝塞尔函数J和与几何尺寸A，D和L以及材料常数sigma，epsilon和mu相关的参数a i （16）。 该方法还可以通过有理函数模型（Z> Rafumod）模拟（6）线（16）的特征阻抗，并且估计（7）有理函数模型（Z < SUB>）通过依赖于物理模型（Z＆lt; phymod＆lt; / SUB＆gt;）的结果的进一步成本函数。