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    • 4. 发明申请
    • METHOD AND APPARATUS FOR ANALYZING AND MITIGATING NOISE IN A DIGITAL SUBSCRIBER LINE
    • 用于数字用户线分析和消除噪声的方法和装置
    • WO2008016585A3
    • 2010-04-29
    • PCT/US2007017077
    • 2007-07-31
    • ADAPTIVE SPECTRUM & SIGNALCIOFFI JOHN MRHEE WONJONGGINIS GEORGEJAGANNATHAN SUMANTH
    • CIOFFI JOHN MRHEE WONJONGGINIS GEORGEJAGANNATHAN SUMANTH
    • H04B3/46H04L12/24H04M3/22H04M11/06
    • H04L1/20H04B1/1027H04B3/32H04L41/0213H04L43/0823H04L43/16H04M3/2209H04M3/30
    • Data indicative of a level of stability of a DSL link is received. Based on the received data, it is determined whether the data indicates a level of stability of the DSL link that is above or below a minimum threshold. If the level of stability of the DSL link is below the minimum threshold, die noise associated with the DSL link before the time of failure is compared with the noise associated with the DSL link after the time of failure. If the difference between the noise before and after the time of failure exceeds a threshold, then the difference in noise is characterized as a stationary noise associated with the DSL link. However, if the difference between the noise before and after the time of failure is below the threshold, a determination is made whether the failure is associated with a loss of power to the DSL link or a severe impulse noise event- the difference in noise is characterized accordingly. Finally, the characterization of the noise associated with the DSL link is preserved for subsequent possible reconfiguration of the DSL link to improve link stability.
    • 接收到指示DSL链路的稳定性水平的数据。 基于接收到的数据,确定数据是否指示高于或低于最小阈值的DSL链路的稳定性水平。 如果DSL链路的稳定级别低于最小阈值,则在故障发生之前与DSL链路相关联的模块噪声与在故障之后与DSL链路相关联的噪声被比较。 如果故障之前和之后的噪声之间的差异超过阈值,则噪声的差异被表征为与DSL链路相关联的稳定的噪声。 然而,如果故障之前和之后的噪声之间的差异低于阈值,则确定故障是否与DSL链路的功率损耗或严重的脉冲噪声事件相关联 - 噪声的差异是 相应地表征。 最后,保留与DSL链路相关联的噪声的表征,以便随后可能重新配置DSL链路以改善链路稳定性。