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    • 7. 发明公开
    • ADAPTIVE MARGIN AND BAND CONTROL
    • 适应性边缘和带控制
    • EP3264683A1
    • 2018-01-03
    • EP17170000.8
    • 2004-12-02
    • Adaptive Spectrum and Signal Alignment, Inc.
    • CIOFFI, John, M.RHEE, Wonjong
    • H04L12/28
    • H04L1/0002H04B3/32H04L1/0019H04L12/2856H04L12/2869H04L12/2874H04L12/2898H04L12/6418H04L27/2608H04L41/0806H04L41/0816H04L41/083H04L41/0833H04L41/0853H04L41/145H04L43/00H04L43/0829H04L43/0847H04L43/0888H04L43/0894H04L43/106H04L43/16H04L2012/6478H04M3/2209H04M3/30H04M3/304H04M3/34H04M11/062Y02D50/10
    • Controlling margins in a DSL modem pair is based on collected operational data. The operational data is analysed and at least one of the modems in the modem pair is instructed to use a margin-related parameter value to assist the modem pair in meeting a margin target, such as a margin limit imposed by a DSL standard or the like. A controller, such as a DSM Center, a "smart" modem unit and/or a computer system can collect and analyse the operational data and generate one or more margin-related parameter values. The margin-related parameter value may be a PSD-related value, such as the MAXNOMPSD, MAXNOMATP or PSDMASK parameter used by various ADSL systems, and may be a shaped spectral mask and/or caps or limits on bit loading for use in transmissions between the modems. In some cases, preference bands can be imposed to direct modems to favour and/or avoid certain frequencies in the modem's usable band(s). The operational data may include historical data relating to prior performance of the modem pair and prior margin compliance. A distribution of margins also may be based on operational data and may be estimated as a function of data rate. Using the estimated margin distribution, a distribution of performance parameters also is calculated, including the probabilities of line outages and probabilities of one or more error parameters exceeding minimum levels. Data rates and/or performance-related parameters may be set on the basis of the estimated performance of the system using various margin settings and levels.
    • 在DSL调制解调器对中控制余量基于收集的操作数据。 分析操作数据,并且指示调制解调器对中的调制解调器中的至少一个使用边界相关参数值来帮助调制解调器对满足边界目标,诸如由DSL标准等所施加的边界限制 。 诸如DSM中心,“智能”调制解调器单元和/或计算机系统的控制器可收集和分析操作数据并生成一个或多个与边界相关的参数值。 裕量相关参数值可以是PSD相关值,诸如由各种ADSL系统使用的MAXNOMPSD,MAXNOMATP或PSDMASK参数,并且可以是成形的频谱掩码和/或用于在 调制解调器。 在某些情况下,偏好频段可以强制指示调制解调器支持和/或避免调制解调器可用频段中的某些频率。 操作数据可以包括涉及调制解调器对的先前性能和先前保证金遵从性的历史数据。 利润率的分布也可以基于运营数据,并且可以作为数据速率的函数来估计。 使用估计的边际分布,还计算性能参数的分布,包括线路中断概率和一个或多个错误参数超过最小水平的概率。 数据速率和/或与性能有关的参数可以基于使用各种裕量设置和级别的系统的估计性能来设置。