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    Adaptive monitoring of crosstalk coupling strength
    2.
    发明授权
    Adaptive monitoring of crosstalk coupling strength 有权
    自适应监测串扰耦合强度

    公开(公告)号：US09548792B2

    公开(公告)日：2017-01-17

    申请号：US13597965

    申请日：2012-08-29

    Applicant: Heinrich Schenk ,  Rainer Strobel

    Inventor： Heinrich Schenk ,  Rainer Strobel

    IPC: H04B3/32 ,  H04B7/08

    CPC classification number: H04B3/32 ,  H04B3/487 ,  H04M3/34 ,  H04M11/062

    Abstract: The disclosure relates to a method of reducing crosstalk in a crosstalk cancelation system. The method comprises at least the steps of applying to the at least one first signal a crosstalk cancelation according to a set of crosstalk coefficients; monitoring crosstalk received in the at least one first signal at a first end of the first path during the application of the crosstalk cancelation; and updating the crosstalk coefficients during the monitoring. The disclosure also includes a device, which can carry out the method.

    Abstract translation: 本发明涉及减少串扰消除系统中串扰的方法。 该方法至少包括以下步骤：根据一组串扰系数向至少一个第一信号施加串扰消除; 在应用所述串扰消除期间在所述第一路径的第一端处监视在所述至少一个第一信号中接收的串扰; 并在监视期间更新串扰系数。 本公开还包括可以执行该方法的设备。

    Channel ordering for multi-channel multi-carrier communication systems
    3.
    发明授权
    Channel ordering for multi-channel multi-carrier communication systems 有权
    多通道多载波通信系统的通道排序

    公开(公告)号：US09544423B2

    公开(公告)日：2017-01-10

    申请号：US15087496

    申请日：2016-03-31

    Applicant: Futurewei Technologies, Inc.

    Inventor： Dong Wei

    IPC: H04M1/24 ,  H04M3/08 ,  H04M3/22 ,  H04M3/34 ,  H04M3/30 ,  H04B3/32

    CPC classification number: H04M3/34 ,  H04B3/32 ,  H04M3/304

    Abstract: A method implemented in a network element (NE), comprising determining, via a processor of the NE, a channel order for a set of subscriber lines at each of a plurality of subcarriers to equalize data rates of the set of subscriber lines, wherein the set of subscriber lines is coupled to a plurality of remote NEs associated with a plurality of users, determining, via the processor, parameters for a crosstalk mitigation filter for a first subcarrier from the plurality of subcarriers according to channel responses of the set of subscriber lines at the first subcarrier and a first channel order from the channel orders for the first subcarrier, and sending, via a transmitter of the NE, parameters of the crosstalk mitigation filter to facilitate joint processing of data of the plurality of users for crosstalk mitigation.

    Abstract translation: 一种在网络元件（NE）中实现的方法，包括经由所述NE的处理器确定在多个子载波中的每一个上的一组用户线路的信道顺序以均衡所述一组用户线路的数据速率，其中， 一组用户线路耦合到与多个用户相关联的多个远程网元，根据该组用户线路的信道响应，经由处理器确定用于来自多个子载波的第一子载波的串扰减轻滤波器的参数 在第一子载波处和来自第一子载波的信道顺序的第一信道顺序，以及经由NE的发射机发送串扰减轻滤波器的参数，以促进用于串扰减轻的多个用户的数据的联合处理。

    Mitigation of disconnect events in vectoring based DSL systems
    4.
    发明授权
    Mitigation of disconnect events in vectoring based DSL systems 有权
    在基于矢量化的DSL系统中减轻断开事件

    公开(公告)号：US09531866B2

    公开(公告)日：2016-12-27

    申请号：US14653286

    申请日：2012-12-21

    Applicant: Telefonaktiebolaget L M Ericsson (publ)

    Inventor： Chenguang Lu ,  Tomas Andreason ,  Miguel Berg ,  Per-Erik Eriksson ,  Elmar Trojer

    IPC: H04M1/24 ,  H04M3/08 ,  H04M3/22 ,  H04B3/32 ,  H04M3/18 ,  H04M3/34 ,  H04M11/06 ,  H04B3/487

    CPC classification number: H04M3/2209 ,  H04B3/32 ,  H04B3/487 ,  H04M3/18 ,  H04M3/34 ,  H04M11/062

    Abstract: There is provided mitigation of disconnect events in a vectoring based digital subscriber line, DSL, system. A method performed by a digital subscriber line access multiplexer, DSLAM, comprises detecting a loss of signal or disconnect event of a line in a vectored group of DSL lines, the loss of signal or disconnect event causing a negative impact on the DSL system. The method further comprises detecting a change in at least one downstream, DS, crosstalk coefficient of at least one line in said vectored group of DSL lines. The method further comprises determining a magnitude of said change. The method further comprises determining where the loss of signal or disconnect event has occurred by processing precoding coefficients of the vectored group of DSL lines. The method further comprises determining, on basis of the determined magnitude and where the loss of signal or disconnect event has occurred, an action to be performed by the DSLAM so as to mitigate for said negative impact.

    Abstract translation: 在基于矢量化的数字用户线路DSL系统中提供了断开连接事件的缓解。 由数字用户线接入复用器DSLAM执行的方法包括检测DSL线路组中线路的信号丢失或断开事件，信号丢失或断开事件对DSL系统造成负面影响。 该方法还包括检测DSL线路的所述向量组中的至少一行的至少一个下游DS，串扰系数的变化。 该方法还包括确定所述变化的大小。 该方法还包括通过处理DSL线路的矢量组的预编码系数来确定信号丢失或断开事件的发生位置。 该方法还包括基于所确定的幅度和确定信号丢失或断开事件发生的位置，确定由DSLAM执行的动作以减轻所述负面影响。

    Probing and estimation of cross-coupling
    5.
    发明授权
    Probing and estimation of cross-coupling 有权
    交叉耦合的探测和估计

    公开(公告)号：US09432080B2

    公开(公告)日：2016-08-30

    申请号：US12333333

    申请日：2008-12-12

    Applicant: Heinrich Schenk

    Inventor： Heinrich Schenk

    IPC: H04B3/46 ,  H04B3/32 ,  H04M3/34 ,  H04M11/06

    CPC classification number: H04B3/32 ,  H04M3/34 ,  H04M11/062

    Abstract: For each channel of a plurality of channels of a Vector transmission system, a sequence of cross-coupling test signals representing a sequence of complex numbers may be transmitted or received. And for each channel of the plurality of channels a sequence of the real part of the sequence of complex numbers is different to a sequence of the imaginary part of the sequence of complex numbers.

    Abstract translation: 对于矢量传输系统的多个信道的每个信道，可以发送或接收表示复数序列的交叉耦合测试信号的序列。 并且对于多个信道的每个信道，复数序列的实部的一个序列与复数序列的虚部的序列不同。

    DETECTION OF DEMAPPING ERRORS
    7.
    发明申请
    DETECTION OF DEMAPPING ERRORS 有权
    检测错误

    公开(公告)号：US20160156383A1

    公开(公告)日：2016-06-02

    申请号：US14904579

    申请日：2014-07-31

    Applicant: ALCATEL LUCENT

    Inventor： Carl NUZMAN ,  Dirk VANDERHAEGEN

    IPC: H04B3/487 ,  H04L25/02 ,  H04L5/00

    CPC classification number: H04B3/487 ,  H04L5/0048 ,  H04L25/022 ,  H04L25/0222 ,  H04L25/023 ,  H04L25/0242 ,  H04M3/306 ,  H04M3/34

    Abstract: At least one crosstalk probing sequence out of a set of orthogonal crosstalk probing sequences is assigned to the at least one respective disturber line for modulation at the given carrier frequency of at least one respective sequence of crosstalk probing symbols, and error samples are successively measured by a receiver coupled to the victim line at the given carrier frequency while the at least one sequence of crosstalk probing symbols are being transmitted over the at least one respective disturber line are fed back for crosstalk estimation. The received error samples are next correlated with at least one unassigned crosstalk probing sequence out of the set of orthogonal crosstalk probing sequences for detection of a demapping error in the received error samples.

    Abstract translation: 一组正交串扰探测序列中的至少一个串扰探测序列被分配给至少一个相应干扰线，用于在至少一个相应序列的串扰探测符号的给定载波频率处进行调制，并且误差采样由 在给定载波频率处耦合到所述受害线路的接收机，同时在所述至少一个相应干扰线路上传输所述至少一个串扰探测符号序列以反馈以用于串扰估计。 接收到的误差样本接下来与用于检测接收到的误差样本中的解映射误差的正交串扰探测序列组中的至少一个未分配串扰探测序列相关联。

    System and method to reduce crosstalk of digital subscriber lines
    8.
    发明授权
    System and method to reduce crosstalk of digital subscriber lines 有权
    减少数字用户线路串扰的系统和方法

    公开(公告)号：US09231656B2

    公开(公告)日：2016-01-05

    申请号：US12608421

    申请日：2009-10-29

    Applicant: Thomas Anschutz ,  Thomas Starr

    Inventor： Thomas Anschutz ,  Thomas Starr

    IPC: H04M9/08 ,  H04B3/32

    CPC classification number: H04B3/32 ,  H04M3/34

    Abstract: A computer implemented method includes determining crosstalk characteristics of a plurality of digital subscriber lines. The computer implemented method includes identifying pairs of digital subscriber lines, each of the pairs including a first digital subscriber line and a second digital subscriber line, where the first digital subscriber line has a crosstalk characteristic that is correlated to the second digital subscriber line. The computer implemented method also includes rearranging terminations at an access node to assign at least one of the identified pairs of digital subscriber lines to a common vectoring group.

    Abstract translation: 计算机实现的方法包括确定多个数字用户线路的串扰特性。 计算机实现的方法包括识别数字用户线对，每个对包括第一数字用户线和第二数字用户线，其中第一数字用户线具有与第二数字用户线相关的串扰特性。 计算机实现的方法还包括在接入节点处重新排列终端，以将所识别的数字用户线对中的至少一个分配给公共矢量组。

    METHODS AND SYSTEMS FOR DETERMINING CROSSTALK FOR A JOINING LINE IN A VECTORED SYSTEM
    10.
    发明申请
    METHODS AND SYSTEMS FOR DETERMINING CROSSTALK FOR A JOINING LINE IN A VECTORED SYSTEM 有权
    用于确定变形系统中接合线的CROSSTALK的方法和系统

    公开(公告)号：US20150350415A1

    公开(公告)日：2015-12-03

    申请号：US14292168

    申请日：2014-05-30

    Applicant: Carl J. NUZMAN ,  Antonia TULINO ,  Emina SOLJANIN

    Inventor： Carl J. NUZMAN ,  Antonia TULINO ,  Emina SOLJANIN

    IPC: H04M3/00 ,  H04M3/34

    CPC classification number: H04M3/34 ,  H04B3/32 ,  H04M11/062

    Abstract: At least one example embodiment discloses a method of determining crosstalk for a joining line in a communication system having a plurality of current active lines. The method includes obtaining a number of disturber lines among the plurality of current active lines, the number of disturber lines being less than a number of the plurality of current active lines, obtaining a pilot matrix, a first dimension of the pilot matrix being based on the number of disturber lines, the pilot matrix representing a sequence of pilots to be transmitted across the plurality of current active lines and the joining line, the first dimension being a number of time instances, the number of time instances being less than the number of the plurality of active lines and determining a crosstalk coupling vector for the joining line based on the pilot matrix.

    Abstract translation: 至少一个示例性实施例公开了一种确定具有多个当前活动线的通信系统中的接合线的串扰的方法。 该方法包括获得多个当前有效线路中的多个干扰线路，干扰线路的数量小于多个当前有效线路的数量，获得导频矩阵，导频矩阵的第一维度基于 干扰线的数量，导频矩阵表示要跨越多个当前活动线路和接合线路发送的导频序列，第一维度是多个时间实例，时间实例的数量小于 多个有源线，并且基于导频矩阵确定用于接合线的串扰耦合矢量。

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