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    • 1. 发明申请
    • JOINT SIGNAL PROCESSING ACROSS A PLURALITY OF LINE TERMINATION CARDS
    • 联合信号处理通过一系列线路终端卡
    • WO2010149498A1
    • 2010-12-29
    • PCT/EP2010/058125
    • 2010-06-10
    • ALCATEL LUCENTCHOW, HungkeiDE LIND VAN WIJNGAARDEN, AdriaanPEETERS, MichaelVANDERHAEGEN, Dirk
    • CHOW, HungkeiDE LIND VAN WIJNGAARDEN, AdriaanPEETERS, MichaelVANDERHAEGEN, Dirk
    • H04L5/00H04M11/06
    • H04M11/062H04B3/32H04L25/03343H04L2025/03426
    • The present invention relates to a line termination card (1) for connecting subscriber devices through subscriber lines. in accordance with a first embodiment of the invention, the line termination card comprises: - a data output terminal (10 1 ; 10 M ) for outputting a data sequence (s 1,t ; s M,t ), - a vectoring entity (20) for parsing and encoding the data sequence into frequency samples according to a carrier loading parameter (CL 1 ; CL M ), for scaling the frequency samples into scaled frequency samples (Z 1, t, k ; Z M, t, k ) according to a carrier scaling parameter (CS 1 ; CS M ), and for processing the scaled frequency samples for crosstalk compensation, - a controller (30) for adjusting the carrier loading parameter and the carrier scaling parameter. - a forwarder (40) coupled to the data output terminal and to the controller for forwarding the data sequence, the carrier loading parameter and the carrier scaling parameter towards a further line termination card (1'). The present invention also relates to an access node comprising such a line termination card, and to a method for connecting subscriber devices through subscriber lines.
    • 本发明涉及一种用于通过用户线连接用户设备的线路终端卡(1)。 根据本发明的第一实施例,线路终端卡包括: - 用于输出数据序列(s1,t; sM,t)的数据输出终端(101; 10M), - 用于解析的向量实体(20) 根据载波负载参数(CL1; CLM)将数据序列编码为频率样本,用于根据载波缩放参数(CS1)将频率样本缩放为缩放频率样本(Z1,t,k; ZM,t,k) ; CSM),并且用于处理用于串扰补偿的缩放频率样本, - 用于调整载波负载参数和载波缩放参数的控制器(30)。 - 耦合到所述数据输出端和所述控制器的转发器(40),用于将所述数据序列,所述载波加载参数和所述载波缩放参数转发到另一线路终端卡(1')。 本发明还涉及一种包括这种线路终端卡的接入节点,以及一种通过用户线路连接用户设备的方法。
    • 4. 发明申请
    • METHOD AND APPARATUS FOR FAST AND ACCURATE ACQUISITION OF CROSSTALK COEFFICIENTS
    • 用于快速和准确地获取CROSSTALK系数的方法和装置
    • WO2014013018A1
    • 2014-01-23
    • PCT/EP2013/065186
    • 2013-07-18
    • ALCATEL LUCENT
    • DE LIND VAN WIJNGAARDEN, AdriaanGUENACH, MamounNUZMAN, Carl
    • H04B3/46H04L27/26H04M3/30
    • H04B3/32H04B3/487H04L27/2613H04L2025/03426H04M3/302H04M3/34
    • The present invention relates to a method for acquiring crosstalk coefficients from a plurality of disturber lines (L 1 ; L 2 ) into a victim line (L N ) in a wired multi-carrier communication system (1). In accordance with an embodiment of the invention, the method comprises the steps of inserting a plurality of crosstalk probing signals (XTS 1 ; XTS 2 ) within the wired multi-carrier communication system for probing the crosstalk from respective ones of the plurality of disturber lines into the victim line, carrying out crosstalk measurements (SNIR n ) over the victim line, and estimating the crosstalk coefficients from the crosstalk measurements. The method further comprises the steps of organizing the plurality of disturber lines into subsets of disturber lines (SL 1 ; SL 2 ), and individually assigning disjoint groups of carriers (CG 1 ; CG 2 ) to the respective subsets of disturber lines. The insertion of the plurality of crosstalk probing signals is confined within the respectively assigned groups of carriers. The subsets of disturber lines and/or the groups of carriers used for a second or subsequent iteration are tailored based on crosstalk characteristics observed for the respective disturber lines during a previous iteration. The present invention also relates to a vectoring controller (130) for acquiring crosstalk coefficients from a plurality of disturber lines (L 1 ; L 2 ) into a victim line (L N ) in a wired multi-carrier communication system (1).
    • 本发明涉及一种用于在有线多载波通信系统(1)中从多个干扰线(L1; L2)获取串扰系数到受害线路(LN)的方法。 根据本发明的实施例,该方法包括以下步骤:在有线多载波通信系统内插入多个串扰探测信号(XTS1; XTS2),用于探测从多个干扰线中的相应干扰线到 受害者线路,在受害线路上进行串扰测量(SNIRn),并从串扰测量中估计串扰系数。 该方法还包括以下步骤:将多个干扰线组织成干扰线(SL1; SL2)的子集,并将不同的载波组(CG1; CG2)分别分配给干扰线的各个子集。 多个串扰探测信号的插入被限制在分配的载波组内。 用于第二次或后续迭代的干扰线和/或载体组的子集基于在先前迭代期间针对相应干扰线观察到的串扰特性来量化。 本发明还涉及一种用于在有线多载波通信系统(1)中从多个干扰线(L1; L2)到受害线路(LN)获取串扰系数的矢量控制器(130)。