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公开(公告)号：US09584182B2
公开(公告)日：2017-02-28
申请号：US14508168
申请日：2014-10-07
发明人： Kevin D. Fisher , Nicholas P. Sands
CPC分类号： H04B3/32 , H04M3/2209 , H04M3/304 , H04M3/34 , H04M11/062
摘要： A vector DSL system includes a plurality of modems, which may be multi-port devices. Unprocessed user data is extracted from the modems and passed through a private vectoring data routing apparatus to one or more vectoring modules, such as vectoring cards. Each vectoring module includes one or more vector processors that include processing units configured to process the unprocessed user data on the basis of all modems' data for a given DSL tone grouping. Processing of the unprocessed user data removes the effects of FEXT from upstream and downstream user data and returns the processed user data to the modems using the vectoring data routing apparatus, which can be a specialized data transmission network utilizing one or more vector routers.
摘要翻译： 矢量DSL系统包括多个调制解调器，其可以是多端口设备。 从调制解调器提取未处理的用户数据，并通过专用向量化数据路由装置传送到一个或多个向量模块，例如向量卡。 每个矢量模块包括一个或多个矢量处理器，其包括被配置为基于给定DSL音调分组的所有调制解调器的数据来处理未处理的用户数据的处理单元。 未处理的用户数据的处理从上游和下游用户数据中消除FEXT的影响，并使用向量化数据路由装置将处理过的用户数据返回到调制解调器，矢量化数据路由装置可以是利用一个或多个向量路由器的专用数据传输网络。
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32.发明申请VECTORING ACROSS MULTIPLE CO BOXES/CARDS/DSLAMS EITHER OWNED BY THE SAME OPERATOR OR BY DIFFERENT OPERATORS 审中-公开由相同的操作者或不同操作者掌握的多个CO BOXES /卡/ DSLAMS公开(公告)号：US20160380673A1
公开(公告)日：2016-12-29
申请号：US15189599
申请日：2016-06-22
CPC分类号： H04B3/32 , H04B3/487 , H04L12/2878 , H04L25/0202 , H04L25/0242 , H04M3/007 , H04M3/2209 , H04M11/062 , H04Q2201/14 , H04Q2213/1336
摘要： Methods, systems, and devices are described for wired communication. In one aspect, a distribution point may use a redundant number of digital subscriber line (DSL) lines that share a same cable binder to cancel crosstalk. For example a first distribution point may use a redundant number of lines, which may be virtualized lines, to cancel interference between lines controlled by the first distribution point and lines controlled by a second distribution point. In some cases, a distribution point may share precoding and cancelling coefficients with another distribution point over a cloud network or other service to enable vectoring without sharing transmitted data between the two distribution points. That is, the first distribution point may receive information related to crosstalk between sets of CPEs without receiving data transmitted by a separate distribution point sharing the same cable binder, and use the crosstalk related information to cancel crosstalk.
摘要翻译： 描述了有线通信的方法，系统和设备。 在一个方面，分发点可以使用共享相同电缆绑扎器的冗余数量的数字用户线（DSL）线路来消除串扰。 例如，第一分发点可以使用冗余数量的线路，其可以是虚拟线路，以消除由第一分发点控制的线路和由第二分配点控制的线路之间的干扰。 在一些情况下，分发点可以通过云网络或其他服务与另一个分发点共享预编码和取消系数，以实现向量化而不在两个分发点之间共享传输的数据。 也就是说，第一分发点可以接收与CPE组之间的串扰相关的信息，而不接收由共享相同电缆绑带的单独分配点发送的数据，并且使用串扰相关信息来消除串扰。
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公开(公告)号：US20160365999A1
公开(公告)日：2016-12-15
申请号：US15207211
申请日：2016-07-11
CPC分类号： H04L27/265 , H04B1/1036 , H04B15/00 , H04L2012/6478 , H04M3/18 , H04M11/06 , H04M11/062
摘要： The present invention generally relates to an impulse noise canceller for DSL systems. According to certain aspects, embodiments of the invention provide a dual sensor receiver to deal with the impulse noise effectively. The second sensor can be incorporated by either a common mode or unused differential port. Alternatively a power line sensor can also act as a sensor. According to certain additional aspects, embodiments of the invention provide various alternative implementations of an impulse noise canceller within a DSL receiver. According to still further aspects, embodiments of the invention provide methods for selectively training an impulse noise canceller in the various implementations.
摘要翻译： 本发明一般涉及DSL系统的脉冲噪声消除器。 根据某些方面，本发明的实施例提供了一种双传感器接收器来有效地处理脉冲噪声。 第二个传感器可以通过共模或未使用的差分端口并入。 或者，电力线传感器也可以用作传感器。 根据某些附加方面，本发明的实施例提供DSL接收机内的脉冲噪声消除器的各种替代实现。 根据另外的方面，本发明的实施例提供了用于在各种实现中选择性地训练脉冲噪声消除器的方法。
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公开(公告)号：US09490872B2
公开(公告)日：2016-11-08
申请号：US14242335
申请日：2014-04-01
发明人： Nicholas P. Sands , Kevin D. Fisher
摘要： A reduced-memory vectored DSL system reduces the bandwidth and memory storage demands on a vectored DSL system in which FEXT data is transmitted and stored. When test signal data, such as training and/or tracking data, is sent to determine FEXT characteristics of the DSL system, error signals are available for all or substantially all of the upstream and/or downstream frequency band DSL tones used in the system. Dividing a frequency band into sub-bands, only a subset of tones in each sub-band is used for deriving FEXT data. For tones in the sub-band subsets, full-precision FEXT data values can be derived. For other tones, approximations of the FEXT data can be derived. Memory is reduced in both the transmission of such FEXT data (between upstream and downstream ends) and within an upstream-end device such as a DSLAM that performs vectoring using a separate or internal vectoring processing apparatus.
摘要翻译： 减少存储器向量的DSL系统减少了在其中发送和存储FEXT数据的向量DSL系统上的带宽和存储器存储需求。 当测试信号数据（例如训练和/或跟踪数据）被发送以确定DSL系统的FEXT特性时，错误信号可用于系统中使用的所有或基本上所有上游和/或下游频带DSL音调。 将频带划分为子带，仅使用每个子带中的音调子集来推导FEXT数据。 对于子带子集中的音调，可以导出全精度FEXT数据值。 对于其他色调，可以导出FEXT数据的近似值。 在这种FEXT数据（在上游和下游端之间）的传输以及诸如使用单独的或内部的向量化处理设备执行向量化的DSLAM的上游设备中，存储器都被减少。
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35.发明授权Method and apparatus for gauge identification based on single ended line testing (SELT) 有权基于单线测试（SELT）的仪表识别方法和设备公开(公告)号：US09426268B2
公开(公告)日：2016-08-23
申请号：US14807233
申请日：2015-07-23
发明人： Behzad Ahmadi , Robin Levonas , Vipin Pathak
摘要： The present invention relates generally to characterizing loops in a communication system, and more particularly to methods and apparatuses for loop gauge identification. In accordance with certain aspects, embodiments of the invention extract some information from the SELT signal. From SELT, the loop impedance, or equivalently input impedance, is determined. This information is then used for gauge identification.
摘要翻译： 本发明一般涉及在通信系统中表征环路，更具体地，涉及用于环路规识别的方法和装置。 根据某些方面，本发明的实施例从SELT信号中提取一些信息。 从SELT，确定回路阻抗或等效输入阻抗。 然后将此信息用于仪表识别。
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公开(公告)号：US09413424B2
公开(公告)日：2016-08-09
申请号：US14887127
申请日：2015-10-19
CPC分类号： H04B3/32 , H04B3/46 , H04B3/466 , H04B3/487 , H04L12/2856
摘要： The present invention relates to methods and apparatuses for sensing noise sources in a wireline communications environment such as a customer premises environment in a DSL system. In embodiments, the invention includes an additional sensor that is connected to power mains in a DSL customer premises environment either to characterize, at their source, noises coupling into the DSL lines, and/or to mitigate their impact into the DSL lines. One objective is associated with diagnostics that help to better characterize the noise signals themselves and derive correlation of signals sensed from the power mains and their possible projection onto the DSL line. Another objective makes use of these power line sensor signals to mitigate or to eliminate power line noises that make their way onto the DSL line. Example embodiments further include and exploit signals from additional secondary sensors such as secondary common mode, differential mode and phantom mode sensors.
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公开(公告)号：US09287929B2
公开(公告)日：2016-03-15
申请号：US13967650
申请日：2013-08-15
发明人： Murli Mohan Rao
IPC分类号： H04B3/32
CPC分类号： H04B3/32
摘要： Embodiments of the invention provide a robust mechanism to isolate transceivers that attempt to train on a FEXT channel during the handshake phase and to abort a false activation. According to aspects of the invention, either or both transceiver acknowledges the unique identity of the other transceiver during the handshake phase. This ensures that the transceiver progresses to training and beyond with only one other remote transceiver.
摘要翻译： 本发明的实施例提供了一种鲁棒的机制，用于隔离在握手阶段尝试在FEXT信道上训练并且中止假激活的收发机。 根据本发明的方面，在握手阶段期间收发器中的一个或两个收发器确认另一收发器的独特标识。 这样可以确保收发器仅通过一个其他远程收发器进行培训。
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公开(公告)号：US20160065729A1
公开(公告)日：2016-03-03
申请号：US14843149
申请日：2015-09-02
发明人： James T. Schley May
CPC分类号： H04L25/0266 , H04M3/007 , H04M11/062
摘要： Embodiments of the invention relate to methods and apparatuses for performing hybrid rejection that overcome various shortcomings of the prior art. In one embodiment, the transformer's receive winding is stacked on top of the transmit winding, the two being wired in series and in phase. Z2 is scaled by approximately half so as to maintain the same receive gain. In another embodiment, rather than stacking the receive and transmit windings for series summation, they are each used as independent sources into the summing junction of the receive amp. If Z2 and Z3 are equal, then an equal proportion of V1 and V2 are summed.
摘要翻译： 本发明的实施例涉及克服现有技术的各种缺点的用于执行混合排斥的方法和装置。 在一个实施例中，变压器的接收绕组堆叠在发射绕组的顶部上，两个串联和同相地布线。 Z2被缩放约一半，以便保持相同的接收增益。 在另一个实施例中，它们不是堆叠用于串联求和的接收和发射绕组，而是分别用作接收放大器的求和结点中的独立源。 如果Z2和Z3相等，则V1和V2的相等比例相加。
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39.发明申请METHOD AND APPARATUS FOR CROSSTALK MANAGEMENT AMONG DIFFERENT VECTORED GROUPS 审中-公开不同选择组合的摇杆管理方法与装置公开(公告)号：US20160036491A1
公开(公告)日：2016-02-04
申请号：US14816927
申请日：2015-08-03
发明人： Massimo Sorbara
CPC分类号： H04B3/32 , H04L5/14 , H04L27/2602
摘要： The present invention relates generally to data communications, and more particularly to techniques based on the G.fast protocol for managing operation around potentially degrading un-cancellable crosstalk among separate vector groups implemented in a single G.fast based box located at a network distribution point, referred to as a Distribution Point Unit (DPU). In embodiments, techniques according to the invention configure transmission of signals from the different vector groups so as to avoid or prevent transmission of signals, either in the frequency domain or time domain or a combination of the two, from causing severe degradation in performance due to un-cancelled crosstalk among the separate groups.
摘要翻译： 本发明一般涉及数据通信，更具体地说，涉及基于G.fast协议的技术，用于管理在位于网络分发点的单个基于G.fast的盒中实现的单独矢量组之间潜在降级的不可消除串扰的操作 ，称为分配点单元（DPU）。 在实施例中，根据本发明的技术配置来自不同矢量组的信号的传输，以便避免或阻止在频域或时域或两者的组合中的信号的传输，从而导致性能的严重劣化，由于 单独组之间未取消串扰。
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40.发明申请METHOD AND APPARATUS TO IMPROVE THE LINEARITY OF THE TIME DOMAIN TRACE DERIVED FROM A SINGLE ENDED LINE TEST 审中-公开改进从单次测试线测得的时域跟踪线性的方法和装置公开(公告)号：US20150280779A1
公开(公告)日：2015-10-01
申请号：US14671391
申请日：2015-03-27
发明人： Robin LEVONAS , Vipin PATHAK
CPC分类号： H04B3/46
摘要： The present invention is related to improvements to SELT testing, and more particularly to methods and apparatuses for reducing the effects of distortions of the reflected signal without sacrificing the integrity of the original signal. In embodiments, a method according to the invention consists of first modifying the transmit sequence to utilize and better “excite” the low frequency tones. In embodiments, the method includes compensating for transformer roll-off at low frequencies. In other embodiments, the method includes filling gaps in the received frequency domain S11 sequence with a predicted, or estimated, version of the S11 signal.
摘要翻译： 本发明涉及SELT测试的改进，更具体地涉及用于在不牺牲原始信号的完整性的情况下减少反射信号失真的影响的方法和装置。 在实施例中，根据本发明的方法包括首先修改发送序列以利用和更好地“激励”低频音调。 在实施例中，该方法包括补偿在低频下的变压器滚降。 在其他实施例中，该方法包括使用S11信号的预测或估计版本来填充接收到的频域S11序列中的间隙。
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