公开(公告)号：US09136943B2

公开(公告)日：2015-09-15

申请号：US13562261

申请日：2012-07-30

申请人： Robert J. Thompson ,  Charles S. Moore ,  John L. Moran, III ,  Marc L. Morrissette

发明人： Robert J. Thompson ,  Charles S. Moore ,  John L. Moran, III ,  Marc L. Morrissette

IPC分类号： H04B10/079 ,  H04B10/66 ,  H04B3/46 ,  H04B10/2507 ,  H04B10/2575 ,  H04L25/03

CPC分类号： H04B10/0795 ,  H04B3/46 ,  H04B10/2507 ,  H04B10/25751 ,  H04B10/66 ,  H04L25/03006

摘要： An automated method of characterizing distortion detected by equalization on a channel of a network is provided. Equalization stress of an observed channel equalization response of an end device of the network is estimated, and equalization stress is calculated for a theoretical channel equalization response of the end device mathematically based on the observed channel equalization response and a theoretical removal of a suspected impairment from the network. The above referenced calculating step is separately repeated for each of a plurality of suspected impairments stored in a database of suspected impairments. A highest ranking suspected dominant impairment is determined from the database of suspected impairments such that removal of the highest ranking suspected dominant impairment from the network would provide a greatest reduction of equalization stress of a channel equalization response of the end device.

摘要翻译： 提供了一种通过网络的信道上的均衡检测的表征失真的自动化方法。 估计网络终端设备的观测信道均衡响应的均衡应力，并且基于所观察到的信道均衡响应和理论上的可疑损伤理论去除来计算终端设备的理论信道均衡响应的均衡应力 网络。 针对存储在疑似损伤的数据库中的多个疑似损伤中的每一个，分别重复上述的计算步骤。 从疑似损伤的数据库中确定最高级别的疑似主要损害，从而从网络中移除最高排名的疑似主要损害可以最大限度地减少终端设备的信道均衡响应的均衡压力。

公开(公告)号：US20140029654A1

公开(公告)日：2014-01-30

申请号：US13562257

申请日：2012-07-30

申请人： Robert J. Thompson ,  Charles S. Moore ,  John L. Moran, III ,  Marc L. Morrissette

发明人： Robert J. Thompson ,  Charles S. Moore ,  John L. Moran, III ,  Marc L. Morrissette

IPC分类号： H04L12/26 ,  H04B1/38

CPC分类号： H04B3/46 ,  H04L1/242

摘要： Method and apparatus for characterizing an impulse noise impairment impacting communications over data links of a network are provided. A test signal comprising a bit stream of a predetermined bit sequence and packet size is configured and transmitted over the data links. The test signal is received, and the bit stream of the test signal as transmitted is compared to a bit stream of the test signal as received to identify differences in bit sequence. Thereafter, characteristics of the impulse noise impairment impacting communications between the data links are estimated based on the detected differences in bit sequence.

摘要翻译： 提供用于表征影响通过网络的数据链路的通信的脉冲噪声损害的方法和装置。 包括预定比特序列和分组大小的比特流的测试信号被配置并通过数据链路传输。 接收测试信号，并将所发送的测试信号的比特流与接收到的测试信号的比特流进行比较，以识别比特序列中的差异。 此后，基于检测到的位序列的差异来估计影响数据链路之间的通信的脉冲噪声损害的特性。

公开(公告)号：US20140029655A1

公开(公告)日：2014-01-30

申请号：US13562261

申请日：2012-07-30

申请人： Robert J. Thompson ,  Charles S. Moore ,  John L. Moran, III ,  Marc L. Morrissette

发明人： Robert J. Thompson ,  Charles S. Moore ,  John L. Moran, III ,  Marc L. Morrissette

IPC分类号： H04L12/26

CPC分类号： H04B10/0795 ,  H04B3/46 ,  H04B10/2507 ,  H04B10/25751 ,  H04B10/66 ,  H04L25/03006

摘要： An automated method of characterizing distortion detected by equalization on a channel of a network is provided. Equalization stress of an observed channel equalization response of an end device of the network is estimated, and equalization stress is calculated for a theoretical channel equalization response of the end device mathematically based on the observed channel equalization response and a theoretical removal of a suspected impairment from the network. The above referenced calculating step is separately repeated for each of a plurality of suspected impairments stored in a database of suspected impairments. A highest ranking suspected dominant impairment is determined from the database of suspected impairments such that removal of the highest ranking suspected dominant impairment from the network would provide a greatest reduction of equalization stress of a channel equalization response of the end device.

摘要翻译： 提供了一种通过网络的信道上的均衡检测的表征失真的自动化方法。 估计网络终端设备的观测信道均衡响应的均衡应力，并且基于所观察到的信道均衡响应和理论上的可疑损伤理论去除来计算终端设备的理论信道均衡响应的均衡应力 网络。 针对存储在疑似损伤的数据库中的多个疑似损伤中的每一个，分别重复上述的计算步骤。 从疑似损伤的数据库中确定最高级别的疑似主要损害，从而从网络中移除最高排名的疑似主要损害可以最大限度地减少终端设备的信道均衡响应的均衡压力。

公开(公告)号：US20100158093A1

公开(公告)日：2010-06-24

申请号：US12342733

申请日：2008-12-23

申请人： Robert J. Thompson ,  Michael J. Cooper ,  Charles S. Moore ,  John L. Moran, III

发明人： Robert J. Thompson ,  Michael J. Cooper ,  Charles S. Moore ,  John L. Moran, III

IPC分类号： H04B17/00

CPC分类号： H04B17/0085 ,  H04B17/309 ,  H04B17/318 ,  H04B17/336 ,  H04W52/343

摘要： Methods are described for identifying a dominant impairment on a communication channel impaired by an interference issue. The methods include systematic examination of total power loading, systematic examination of signal power reduction, statistical examination of communication channel noise power, and systematic examination of interleaver effectiveness. Each relates to automatically diagnosing and characterizing distortion-based interference issues by monitoring the performance of a communication channel during a testing procedure. These methods enable a technician or engineer to remotely diagnose distortion-based interference issues relatively quickly without having to use external test equipment and without having to deploy technicians to various locations within the cable plant. A system by which these methods can be implemented is also disclosed.

公开(公告)号：US20100157824A1

公开(公告)日：2010-06-24

申请号：US12342722

申请日：2008-12-23

申请人： Robert J. Thompson ,  Michael J. Cooper ,  Charles S. Moore ,  John L. Moran, III

发明人： Robert J. Thompson ,  Michael J. Cooper ,  Charles S. Moore ,  John L. Moran, III

IPC分类号： H04L12/26

CPC分类号： H04L43/0823 ,  H04L43/0829 ,  H04L43/10 ,  H04L43/50

摘要： Methods are described for identifying a dominant impairment on a communication channel impaired by an interference issue. The methods include systematic examination of total power loading, systematic examination of signal power reduction, statistical examination of communication channel noise power, and systematic examination of interleaver effectiveness. Each relates to automatically diagnosing and characterizing distortion-based interference issues by monitoring the performance of a communication channel during a testing procedure. These methods enable a technician or engineer to remotely diagnose distortion-based interference issues relatively quickly without having to use external test equipment and without having to deploy technicians to various locations within the cable plant. A system by which these methods can be implemented is also disclosed.

摘要翻译： 描述了用于识别由干扰问题损害的通信信道上的主要损害的方法。 方法包括总功率负载系统检查，信号功率降低系统检测，通信信道噪声功率统计检验，交织器有效性系统检测。 每个都涉及通过在测试过程中监视通信信道的性能来自动诊断和表征基于失真的干扰问题。 这些方法使技术人员或工程师能够相对快速地远程诊断基于失真的干扰问题，而无需使用外部测试设备，也不必将技术人员部署到电缆设备内的各个位置。 还公开了可以实现这些方法的系统。

公开(公告)号：US20080101210A1

公开(公告)日：2008-05-01

申请号：US11613823

申请日：2006-12-20

申请人： Robert J. Thompson ,  Michael J. Cooper ,  Charles S. Moore ,  John L. Moran III

发明人： Robert J. Thompson ,  Michael J. Cooper ,  Charles S. Moore ,  John L. Moran III

IPC分类号： H04J9/00

CPC分类号： H04B10/0775 ,  H04B10/079 ,  H04L1/0003 ,  H04L1/002

摘要： The available modulation schemes of a network are analyzed to determine which ones contain excessive phase noise or narrowband interference. A network element is selected and assigned to a test channel at a first modulation scheme at a predetermined power level to achieve a predetermined PER. The network element transmits a test signal and the network controller measures the signal to noise ratio (SNR) in the received test signal. If the SNR is not within a predetermined tolerance range of an estimated SNR for the modulation scheme at the predetermined PER, the modulation scheme is determined to have excessive phase noise or narrowband interference. Each available modulation scheme is tested by instructing the network element to transmit the test signal using each modulation scheme and assigning the power level of each modulation scheme. The suitable modulation schemes may be determined.

摘要翻译： 分析网络的可用调制方案以确定哪些包含过多的相位噪声或窄带干扰。 以预定功率电平选择并以第一调制方案将测试信道分配给测试信道以实现预定的PER。 网络元件发送测试信号，网络控制器测量接收到的测试信号中的信噪比（SNR）。 如果SNR在预定的PER下不在调制方案的估计SNR的预定公差范围内，则调制方案被确定为具有过大的相位噪声或窄带干扰。 每个可用的调制方案通过指示网络单元使用每个调制方案发送测试信号并分配每个调制方案的功率电平来测试。 可以确定合适的调制方案。

公开(公告)号：US09088355B2

公开(公告)日：2015-07-21

申请号：US11610177

申请日：2006-12-13

申请人： Charles S. Moore ,  Robert J. Thompson ,  Michael J. Cooper ,  John L Moran, III

发明人： Charles S. Moore ,  Robert J. Thompson ,  Michael J. Cooper ,  John L Moran, III

IPC分类号： H04B10/08 ,  H04B10/079 ,  H04B10/077 ,  H04H20/69

CPC分类号： H04B10/07955 ,  H04B10/077 ,  H04H20/69

摘要： The dynamic range of an optical link in a network is determined by simultaneously transmitting signals from two network elements at first and second frequencies, which create a combined signal at a third frequency. The transmission power levels of selected network elements is successively increased until the measured power from the third frequency no longer changes in a predictable manner, at which point the upper limit of the dynamic range of the optical link is determined.

摘要翻译： 网络中的光链路的动态范围通过在第一和第二频率同时发送来自两个网络元件的信号来确定，这在第三频率产生组合信号。 所选择的网络元件的发射功率电平连续增加，直到来自第三频率的测量功率不再以可预测的方式改变，此时确定了光链路的动态范围的上限。

公开(公告)号：US08081674B2

公开(公告)日：2011-12-20

申请号：US12342733

申请日：2008-12-23

申请人： Robert J. Thompson ,  Michael J. Cooper ,  Charles S. Moore ,  John L. Moran, III

发明人： Robert J. Thompson ,  Michael J. Cooper ,  Charles S. Moore ,  John L. Moran, III

IPC分类号： H04B3/46 ,  H04B17/00 ,  H04B1/20 ,  H03H7/30 ,  H03H7/40 ,  H03K5/159

CPC分类号： H04B17/0085 ,  H04B17/309 ,  H04B17/318 ,  H04B17/336 ,  H04W52/343

摘要： Methods are described for identifying a dominant impairment on a communication channel impaired by an interference issue. The methods include systematic examination of total power loading, systematic examination of signal power reduction, statistical examination of communication channel noise power, and systematic examination of interleaver effectiveness. Each relates to automatically diagnosing and characterizing distortion-based interference issues by monitoring the performance of a communication channel during a testing procedure. These methods enable a technician or engineer to remotely diagnose distortion-based interference issues relatively quickly without having to use external test equipment and without having to deploy technicians to various locations within the cable plant. A system by which these methods can be implemented is also disclosed.

摘要翻译： 描述了用于识别由干扰问题损害的通信信道上的主要损害的方法。 方法包括总功率负载系统检查，信号功率降低系统检测，通信信道噪声功率统计检验，交织器有效性系统检测。 每个都涉及通过在测试过程中监视通信信道的性能来自动诊断和表征基于失真的干扰问题。 这些方法使技术人员或工程师能够相对快速地远程诊断基于失真的干扰问题，而无需使用外部测试设备，也不必将技术人员部署到电缆设备内的各个位置。 还公开了可以实现这些方法的系统。

公开(公告)号：US08000254B2

公开(公告)日：2011-08-16

申请号：US12342722

申请日：2008-12-23

申请人： Robert J. Thompson ,  Michael J. Cooper ,  Charles S. Moore ,  John L. Moran, III

发明人： Robert J. Thompson ,  Michael J. Cooper ,  Charles S. Moore ,  John L. Moran, III

IPC分类号： H04L1/12 ,  H04L12/26 ,  H04B1/10

CPC分类号： H04L43/0823 ,  H04L43/0829 ,  H04L43/10 ,  H04L43/50

摘要： Methods are described for identifying a dominant impairment on a communication channel impaired by an interference issue. The methods include systematic examination of total power loading, systematic examination of signal power reduction, statistical examination of communication channel noise power, and systematic examination of interleaver effectiveness. Each relates to automatically diagnosing and characterizing distortion-based interference issues by monitoring the performance of a communication channel during a testing procedure. These methods enable a technician or engineer to remotely diagnose distortion-based interference issues relatively quickly without having to use external test equipment and without having to deploy technicians to various locations within the cable plant. A system by which these methods can be implemented is also disclosed.

公开(公告)号：US20130051442A1

公开(公告)日：2013-02-28

申请号：US13221531

申请日：2011-08-30

申请人： Michael J. Cooper ,  Charles S. Moore ,  John L. Moran ,  Marc L. Morrissette ,  Robert J. Thompson

发明人： Michael J. Cooper ,  Charles S. Moore ,  John L. Moran ,  Marc L. Morrissette ,  Robert J. Thompson

IPC分类号： H04B17/00 ,  H03H7/40 ,  H04B1/38

CPC分类号： H04L25/03006 ,  H04L25/03885

摘要： A method and apparatus for updating equalization coefficients of an adaptive pre-equalizer of a network element are provided. The method includes monitoring a communications channel to measure distortion of a communications signal received from the network element and detecting whether a transient impairment is present in the communication signal. When a transient impairment is not detected to be present, a pre-equalization coefficient update is transmitted to the network element. However, when a transient impairment is detected to be present, at least selected ones of the pre-equalization coefficients are scaled before the update is transmitted to the network element or the update is withheld from being transmitted to the network element. An apparatus is also disclosed.

摘要翻译： 提供了一种用于更新网元的自适应预均衡器的均衡系数的方法和装置。 该方法包括监视通信信道以测量从网络单元接收的通信信号的失真并检测通信信号中是否存在瞬时损害。 当没有检测到存在瞬时损害时，将预均衡系数更新发送到网元。 然而，当检测到瞬时损害存在时，在将更新发送到网络元件之前至少选择一个预均衡系数被缩放，或者更新被拒绝发送到网络元件。 还公开了一种装置。