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38 条记录 (耗时 0.014 秒)

    METHOD, DEVICE AND SYSTEM FOR DETECTING DISTURBING LINE
    3.
    发明公开
    METHOD, DEVICE AND SYSTEM FOR DETECTING DISTURBING LINE 有权
    VERFAHREN，VORRICHTUNG UND SYSTEM ZUR ERKENNUNG EINERSTÖRENDENLEITUNG

    公开(公告)号：EP3041151A1

    公开(公告)日：2016-07-06

    申请号：EP13893892.3

    申请日：2013-09-17

    申请人： Huawei Technologies Co., Ltd.

    发明人： TU, Jianping ,  SHI, Cao ,  PAN, Zhong

    IPC分类号： H04B3/46

    CPC分类号： H04B3/487 ,  H04M3/34

    摘要： The present invention provides an interfering line detection method, apparatus, and system. When a case of disordered cabling exists among multiple DSLAMs, if a first DSLAM is an interference source of a second DSLAM, based on an SELT signal sent on one or more preset subcarriers by the first DSLAM, an interfering signal exists on a line corresponding to the one or more preset subcarriers, a difference between a line detection parameter value that corresponds to one or more preset subcarriers on the second DSLAM and a line detection parameter value that corresponds to subcarriers respectively neighboring to the one or more subcarriers on the second DSLAM, and a frequency of a subcarrier whose difference of the one or more differences reaches a preset threshold is acquired, where a line corresponding to the frequency of the subcarrier is an interfering line. Therefore, an interfering line can be detected in real time, effectively increasing a transmission rate of a channel and a proportion of services that can be activated for a DSLAM, and ensuring relatively high network stability.

    摘要翻译： 本发明提供一种干扰线检测方法，装置和系统。 当在多个DSLAM之间存在无序布线的情况下，如果第一DSLAM是第二DSLAM的干扰源，则基于由第一DSLAM在一个或多个预设子载波上发送的SELT信号，干扰信号存在于对应于 所述一个或多个预设子载波，对应于所述第二DSLAM上的一个或多个预设子载波的线路检测参数值与对应于与所述第二DSLAM上的所述一个或多个子载波相邻的子载波的线路检测参数值之间的差， 以及其中一个或多个差异的差达到预设阈值的子载波的频率，其中与子载波的频率对应的线是干扰线。 因此，可以实时检测干扰线路，有效提高信道的传输速率和可以为DSLAM激活的服务的比例，并确保较高的网络稳定性。

    SIGNAL PROCESSING METHOD, DEVICE AND SYSTEM
    5.
    发明公开
    SIGNAL PROCESSING METHOD, DEVICE AND SYSTEM 有权
    VERFAHREN，VORRICHTUNG UND SYSTEM ZUR SIGNALVERARBEITUNG

    公开(公告)号：EP2717485A1

    公开(公告)日：2014-04-09

    申请号：EP11858917.5

    申请日：2011-07-29

    申请人： Huawei Technologies Co., Ltd.

    发明人： SHI, Cao

    IPC分类号： H04B3/32

    CPC分类号： H04B3/32 ,  H04M3/34

    摘要： The present invention provides a signal processing method, device, and system. The method includes: sending, through a first user port, a crosstalk detection signal in a connected line, and receiving, through a second user port, an error sample of an actual downlink signal fed back by a terminal side in a connected line; and estimating, according to the actual downlink signal and the crosstalk detection signal, a coefficient of a pre-coder of a DSLAM to obtain an estimated coefficient of the pre-coder, where the coefficient of the pre-coder is used to cancel far-end crosstalk on the line connected to the second user port when the first user port sends an SELT signal.

    摘要翻译： 本发明提供一种信号处理方法，装置和系统。 该方法包括：通过第一用户端口发送连接线路中的串扰检测信号，并通过第二用户端口接收由连接线路中的终端侧反馈的实际下行链路信号的误差样本; 以及根据所述实际下行链路信号和所述串扰检测信号，估计DSLAM的预编码器的系数，以获得所述预编码器的估计系数，其中所述预编码器的系数被用于取消远端编码器的系数， 当第一用户端口发送SELT信号时，连接到第二用户端口的线路上的端串扰。

    ONLINE RECONFIGURATION TRANSITION SYNCHRONIZATION
    6.
    发明公开
    ONLINE RECONFIGURATION TRANSITION SYNCHRONIZATION 有权
    过渡同步FOR在线重新配置

    公开(公告)号：EP2997691A1

    公开(公告)日：2016-03-23

    申请号：EP14759408.9

    申请日：2014-08-20

    申请人： Huawei Technologies Co., Ltd.

    发明人： LI, Qiaojie ,  HE, Xiaoyue ,  WANG, Xiang ,  SHI, Cao ,  FAZLOLLAHI, Amir H.

    IPC分类号： H04L5/00

    CPC分类号： H04L41/0672 ,  H04L1/007 ,  H04L1/0072 ,  H04L5/0046 ,  H04L27/3416 ,  H04L43/0817 ,  H04L43/0847 ,  H04M11/062

    摘要： An online reconfiguration method comprising communicating data transfer units (DTUs) using a subscriber line, monitoring the subscriber line for a line condition event, detecting the line condition event, wherein detecting the line condition event comprises determining whether the line condition triggers a threshold, sending an online reconfiguration request message that indicates a robust management channel (RMC) frame type in response to detecting the line condition event, wherein the RMC frame type is a normal RMC frame that comprises time marker information when the line condition event does not trigger the threshold, and wherein the RMC frame type is a special RMC frame that comprises time marker information when the line condition event triggers the threshold, receive an online reconfiguration response message that comprises the time marker information, and synchronizing a transition of one or more transmission parameters using the time marker information.

    METHOD, DEVICE AND SYSTEM COMPATIBLE WITH VDSL2 CONVENTIONAL USER END EQUIPMENT
    8.
    发明公开
    METHOD, DEVICE AND SYSTEM COMPATIBLE WITH VDSL2 CONVENTIONAL USER END EQUIPMENT 有权
    VERFAHREN，VORRICHTUNG系统KOMPATIBEL MIT KONVENTIONELLEM VDSL2-BENUTZERENDGERÄT

    公开(公告)号：EP2876817A1

    公开(公告)日：2015-05-27

    申请号：EP12883754.9

    申请日：2012-08-30

    申请人： Huawei Technologies Co., Ltd.

    发明人： SHI, Cao ,  LV, Jie

    IPC分类号： H04B3/32

    CPC分类号： H04M3/34 ,  H04B3/32 ,  H04B3/487 ,  H04M3/007 ,  H04M11/062

    摘要： Embodiments of the present invention provide a method for compatibility with a VDSL2 legacy customer premises equipment, including: selecting tones in preset locations from tones of a legacy line as training tones; controlling the training tones not to transmit data and modulating a pilot sequence on the training tones; calculating and feeding back clipped errors on a Vectored line; and calculating coefficients, for the training tones, of crosstalk of the legacy line in the Vectored line according to the pilot sequence and the clipped errors. The embodiments of the present invention further provide an apparatus and a system for compatibility with a VDSL2 legacy customer premises equipment. According to the present invention, coefficients of crosstalk of a legacy line in a Vectored line can be obtained without increasing costs and changing an existing legacy customer premises equipment, and then the crosstalk of the legacy line in the Vectored line is eliminated, and compatibility of a Vectored-DSL system with the legacy customer premises equipment is implemented.

    摘要翻译： 本发明的实施例提供了一种用于与VDSL2传统用户驻地设备的兼容性的方法，包括：从传统线路的音调中将预设位置的音调选择为训练音; 控制训练音不发送数据和调制训练音上的导频序列; 计算并反馈一个向量线上的限幅误差; 以及根据所述导频序列和所述剪辑误差，计算所述向量线中的所述遗留线的串扰的所述训练音调的系数。 本发明的实施例还提供了一种用于与VDSL2传统客户驻地设备兼容的装置和系统。 根据本发明，可以在不增加成本和改变现有的传统客户驻地设备的情况下获得目录行中的传统线路的串扰系数，然后消除在向量线路中的传统线路的串扰，并且兼容性 实现了具有传统客户驻地设备的Vectored-DSL系统。

    TRANSMISSION METHOD, DEVICE AND SYSTEM USING CARRIER MODULATION
    10.
    发明公开
    TRANSMISSION METHOD, DEVICE AND SYSTEM USING CARRIER MODULATION 有权
    ÜBERTRAGUNGSVERFAHREN，-VORRICHTUNG UND -SYSTEM MITTRÄGERMODULATION

    公开(公告)号：EP2787654A1

    公开(公告)日：2014-10-08

    申请号：EP11878718.3

    申请日：2011-12-31

    申请人： Huawei Technologies Co., Ltd

    发明人： SHI, Cao

    IPC分类号： H04B7/015

    CPC分类号： H04B3/20 ,  H04B3/237 ,  H04L25/0204 ,  H04L27/2647

    摘要： Embodiments of the present invention provide a transmission method that uses carrier modulation and relate to the communications field, so as to solve a problem where spectrum duplex transmission cannot be performed successfully due to interference that is generated by an echo signal transmitted by using an orthogonal frequency division multiplexing technology. The method includes: performing sending of a near-end orthogonal frequency division multiplexing signal and receiving of a far-end orthogonal frequency division multiplexing signal simultaneously on an orthogonal frequency division multiplexing channel; obtaining a carrier phase difference between an echo orthogonal frequency division multiplexing signal and the far-end orthogonal frequency division multiplexing signal, and a channel transfer function of an echo channel; and generating an echo cancellation signal according to the carrier phase difference, the channel transfer function of the near-end echo channel, and a near-end signal to be sent, and overlapping the echo cancellation signal and a received signal to cancel the echo orthogonal frequency division multiplexing signal that is overlapped in the received signal.

    摘要翻译： 本发明的实施例提供一种使用载波调制并涉及通信领域的传输方法，以解决由于通过使用正交频率发送的回波信号产生的干扰而不能成功地进行频谱双工传输的问题 分复用技术。 该方法包括：在正交频分复用信道上同时执行近端正交频分复用信号的发送和远端正交频分复用信号的接收; 获得回波正交频分复用信号与远端正交频分复用信号之间的载波相位差，以及回波信道的信道传递函数; 并且根据载波相位差，近端回波信道的信道传递函数和要发送的近端信号产生回波消除信号，并且与回波抵消信号和接收信号重叠以消除正交的回波信号 在接收信号中重叠的频分复用信号。