公开(公告)号：US20070153811A1

公开(公告)日：2007-07-05

申请号：US11639401

申请日：2006-12-14

申请人： Walter Venters ,  Troy White ,  Daniel Day ,  Richard Goodson

发明人： Walter Venters ,  Troy White ,  Daniel Day ,  Richard Goodson

IPC分类号： H04L12/56 ,  H04L12/28

CPC分类号： H04J3/0685 ,  H04L7/0008 ,  H04L49/351 ,  H04L49/40 ,  H04L2012/5674

摘要： An interworking function (IWF) is coupled to a switch of a packet network and communicates with the network switch based on an Ethernet clock signal or some other type of clock signal. A primary reference clock (PRC) of the network generates a PRC signal, and a timing analyzer determines timing information indicative of timing relationships between the Ethernet clock signal and the PRC signal. The timing analyzer periodically transmits such timing information, and the IWF uses the timing information to generate a PRC signal that is traceable to the network PRC signal.

摘要翻译： 互通功能（IWF）耦合到分组网络的交换机，并且基于以太网时钟信号或某种其他类型的时钟信号与网络交换机进行通信。 网络的主要参考时钟（PRC）产生PRC信号，并且定时分析器确定指示以太网时钟信号和PRC信号之间的定时关系的定时信息。 定时分析仪周期性地发送这样的定时信息，IWF使用定时信息产生可追溯到网络PRC信号的PRC信号。

公开(公告)号：US08442074B1

公开(公告)日：2013-05-14

申请号：US12061480

申请日：2008-04-02

申请人： Richard Goodson ,  Stacy Murphree ,  Jason Morgan ,  Stuart Venters

发明人： Richard Goodson ,  Stacy Murphree ,  Jason Morgan ,  Stuart Venters

IPC分类号： H04J3/06

CPC分类号： H04J3/0664 ,  H04L43/0858 ,  H04L43/106

摘要： The present disclosure generally pertains to systems and methods for passing timing information over packet networks. In one exemplary embodiment of the present disclosure, a transmitter inserts a timestamp into various packets being transmitted. A receiver determines the packet delay for each of these packets. The receiver monitors the packet delays of received packets over time to estimate a minimum packet delay for the network. Thereafter, the receiver uses the timestamps of received packets in order to update a local receiver clock signal so that the local receiver clock signal is synchronous to the clock signal used by the transmitter to generate the timestamps. However, the receiver filters the received timestamps such that the effects of packet delay variation to the synchronization of the local clock signals are reduced.

摘要翻译： 本公开通常涉及用于通过分组网络传递定时信息的系统和方法。 在本公开的一个示例性实施例中，发射机将时间戳插入正在传输的各种分组中。 接收器确定每个这些分组的分组延迟。 接收机随时间监视接收到的分组的分组延迟，以估计网络的最小分组延迟。 此后，接收机使用接收分组的时间戳来更新本地接收机时钟信号，使得本地接收机时钟信号与发射机使用的时钟信号同步以产生时间戳。 然而，接收机对所接收的时间戳进行过滤，使得分组延迟变化对本地时钟信号的同步的影响减小。

公开(公告)号：US08437355B1

公开(公告)日：2013-05-07

申请号：US12939236

申请日：2010-11-04

申请人： Richard Goodson

发明人： Richard Goodson

IPC分类号： H04L12/28

CPC分类号： H04B10/27 ,  H04Q11/0067 ,  H04Q2011/0064

摘要： A passive optical network (PON) has an optical line termination (OLT) that terminates an optical fiber servicing a plurality of optical network units (ONUs). Each ONU has one or more traffic containers (TCONTs) addressable by the OLT. The PON dynamic bandwidth allocation (DBA) implements a scheduling hierarchy, including several scheduling layers, such that disjoint sets of TCONTs can be grouped together, then disjoint sets of groups can be grouped, and so on. In such hierarchy, the residential traffic can be grouped separately from the business traffic. Further, within either the residential or business group, traffic may be grouped to define scheduling layers (“sub-groups”) within the residential or business group. Scheduling in one group or sub-group is performed independently of the scheduling in other groups or sub-groups, subject to the available bandwidth for each group. The scheduling may be controlled to allow the residential services to be oversubscribed while still ensuring compliance of service level performance metrics for the business services.

摘要翻译： 无源光网络（PON）具有终止维护多个光网络单元（ONU）的光纤的光线路终端（OLT）。 每个ONU具有可由OLT寻址的一个或多个业务容器（TCONT）。 PON动态带宽分配（DBA）实现了一个调度层次，包括几个调度层，使得不相交的TCONT组可以分组在一起，然后可以对不同组的组进行分组，等等。 在这种层次结构中，住宅流量可以与业务流量分开分组。 此外，在住宅或商业集团内，流量可以被分组以定义住宅或商业集团内的调度层（“子组”）。 按照其他组或子组中的调度独立执行一个组或子组中的调度，并遵循每个组的可用带宽。 可以控制调度以允许住宅服务被超额认购，同时仍然确保业务服务的服务级别性能指标的符合性。

公开(公告)号：US10608940B2

公开(公告)日：2020-03-31

申请号：US14823898

申请日：2015-08-11

申请人： Richard Goodson ,  Ramya Raghavendra ,  Kenneth D. Ko

发明人： Richard Goodson ,  Ramya Raghavendra ,  Kenneth D. Ko

IPC分类号： H04L12/801 ,  H04L12/26 ,  H04L12/911 ,  H04L12/64 ,  H04L12/28 ,  H04B10/272

摘要： A telecommunication system uses a dynamic bandwidth allocation (DBA) algorithm based on current load conditions for controlling transmissions to a plurality of access modules of an access node in order to achieve a fair allocation of network bandwidth at the access node. As an example, access modules at an access node communicate via a control channel with dynamic bandwidth allocation (DBA) logic that receives load information from each of the access modules. Using such load information, the DBA logic dynamically controls the upstream data rates so that a fair allocation of network bandwidth is achieved across all of the access modules. Specifically, the data rates are controlled such that packet flows for services of the same class achieve the same or similar performance (e.g., average data rate) regardless of which access module is receiving each respective packet flow.

公开(公告)号：US09503185B2

公开(公告)日：2016-11-22

申请号：US13397662

申请日：2012-02-15

申请人： Daniel M. Joffe ,  Fred Chu ,  Richard Goodson

发明人： Daniel M. Joffe ,  Fred Chu ,  Richard Goodson

IPC分类号： H04B10/25 ,  H04L12/761 ,  H04L12/18 ,  H04M11/06

CPC分类号： H04B10/2504 ,  H04L12/18 ,  H04L12/1881 ,  H04L45/16 ,  H04M11/062

摘要： A controller at a distribution point (DP) of a communication system is coupled to a plurality of customer premises (CP) transceivers via drop connections in a point-to-multipoint architecture. Each drop connection is coupled to at least one switch that operates under the control of the controller for selectively isolating the drop connection from the controller, as well as the CP transceivers of other drop connections. In this regard, by controlling the states of the switches, the DP controller can control to which of the CP transceivers it is communicatively connected, and during operation the DP controller controls the switches such that it is communicatively connected only to the CP transceivers for which communication is desired or needed during a particular time interval.

摘要翻译： 在通信系统的分发点（DP）处的控制器通过点对多点架构中的丢弃连接耦合到多个客户驻地（CP）收发器。 每个分接连接耦合到至少一个在控制器的控制下操作的开关，用于选择性地将分接连接与控制器隔离，以及其它分接连接的CP收发器。 在这方面，通过控制开关的状态，DP控制器可以控制其通信连接的CP收发器，并且在操作期间，DP控制器控制开关，使得其仅与CP收发器通信地连接， 在特定的时间间隔内期望或需要通信。

公开(公告)号：US08811308B1

公开(公告)日：2014-08-19

申请号：US12940575

申请日：2010-11-05

申请人： Richard Goodson

发明人： Richard Goodson

IPC分类号： H04W4/00

CPC分类号： H04L47/125 ,  H04L45/245

摘要： An exemplary communication system has logic and memory for storing data indicative of data rates for transceivers coupled to a bonding group. The transceivers are coupled to a plurality of queues, and the logic is configured to determine a plurality of values based on the data. Each of the values indicates a number of bits in a respective one of the queues and is based on the data rate indicated by the data for a respective one of the transceivers. The logic is configured to receive a data packet and to fragment the data packet into a plurality of fragments. The logic is further configured to allocate the fragments to communication connections of the bonding group based on the values and to transmit the fragments to the transceivers such that each of the fragments is transmitted across the respective communication connection to which the fragment is allocated.

摘要翻译： 示例性通信系统具有逻辑和存储器，用于存储指示耦合到绑定组的收发器的数据速率的数据。 所述收发器耦合到多个队列，并且所述逻辑被配置为基于所述数据来确定多个值。 每个值指示相应一个队列中的位数，并且基于由相应一个收发器的数据指示的数据速率。 逻辑被配置为接收数据分组并将数据分组分段成多个分段。 所述逻辑还被配置为基于所述值将所述片段分配给所述绑定组的通信连接，并且将所述片段发送到所述收发器，使得每个所述片段跨所述片段被分配到的相应通信连接发送。

公开(公告)号：US20120224674A1

公开(公告)日：2012-09-06

申请号：US13411053

申请日：2012-03-02

申请人： Richard Goodson ,  Arlynn Wayne Wilson ,  Fred Chu

发明人： Richard Goodson ,  Arlynn Wayne Wilson ,  Fred Chu

IPC分类号： H04M9/08 ,  H04M3/22

CPC分类号： H04M3/18 ,  H04B3/32 ,  H04L27/2601 ,  H04L2012/5675 ,  H04M3/306 ,  H04M3/34 ,  H04W24/02

摘要： A communication system comprises a plurality of line cards having transceivers coupled to a plurality of subscriber lines. Each line card has at least one active transceiver within the same vectoring group, and each line card also has vector logic capable of cancelling crosstalk induced by an active transceiver that is a member of the vectoring group. In the event of a vectoring fault that prevents a line card from receiving vectoring information from at least on other line card, the vector logic is configured to disable vectoring for the interferers affected by the error in order to prevent vectoring operations based on obsolete vectoring coefficients from adversely affecting the quality of the communicated signals. The transceivers communicating signals affected by the suspended vectoring operations are also configured to adjust their constellation density profiles, thereby reducing their data rates, to accommodate the increased noise level resulting from the loss of vectoring. By handling the vectoring fault in such manner, communication can continue without requiring a retrain.

摘要翻译： 通信系统包括具有耦合到多个用户线的收发器的多个线路卡。 每个线路卡在相同的向量组内具有至少一个有源收发信机，并且每个线路卡还具有能够消除由作为向量组的成员的有源收发信机所引起的串扰的向量逻辑。 在矢量故障的情况下，阻止线卡从至少在其他线路卡上接收矢量信息，向量逻辑被配置为禁止受该误差影响的干扰源的矢量化，以便防止基于过时向量系数的矢量化操作 从不利地影响通信信号的质量。 传送受暂停引导操作影响的信号的收发信机也被配置为调整其星座密度分布，从而降低其数据速率，以适应由矢量化损失引起的增加的噪声电平。 通过以这种方式处理向量故障，通信可以继续而不需要重新训练。

公开(公告)号：US20150125151A1

公开(公告)日：2015-05-07

申请号：US14597855

申请日：2015-01-15

申请人： Richard Goodson ,  Leif J. Sandstrom

发明人： Richard Goodson ,  Leif J. Sandstrom

IPC分类号： H04B10/27

CPC分类号： H04B10/27 ,  H04B10/272 ,  H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0064

摘要： An optical communication system comprises a network interface device (NID) having a media converter coupled to an optical fiber of a passive optical network (PON). The media converter converts optical signals from the PON into electrical signals for communication across at least one non-optical channel, such as a conductive or wireless connection, to customer premises equipment (CPE), such as a residential gateway or other customer premises (CP) device. Rather than implementing an optical media access control (optical MAC) layer in the NID, an optical MAC layer for handling PON protocols and management is implemented by the CPE, thereby effectively extending the customer end of the PON across at least one non-optical connection to the CPE. By implementing the optical MAC layer at the CPE, the complexity of the NID is reduced thereby lowering the cost of the NID. In one embodiment, in an effort to further reduce the complexity of the NID, the optical MAC layer is configured to control a laser-on state of an optical transmitter in the NID.

摘要翻译： 光通信系统包括具有耦合到无源光网络（PON）的光纤的媒体转换器的网络接口设备（NID）。 媒体转换器将来自PON的光信号转换成用于通过至少一个非光学信道（例如导电或无线连接）进行通信的电信号到客户驻地设备（CPE），例如住宅网关或其他客户驻地（CP） ）设备。 不是在NID中实现光学介质访问控制（Optical MAC）层，而是由CPE实现用于处理PON协议和管理的光学MAC层，从而有效地将PON的客户端延伸到至少一个非光学连接 到CPE。 通过在CPE实现光MAC层，减少了NID的复杂度，从而降低了NID的成本。 在一个实施例中，为了进一步降低NID的复杂度，光MAC层被配置为控制NID中的光发射机的激光打开状态。

公开(公告)号：US08854942B2

公开(公告)日：2014-10-07

申请号：US13410674

申请日：2012-03-02

申请人： Richard Goodson ,  Arlynn Wayne Wilson ,  Fred Chu

发明人： Richard Goodson ,  Arlynn Wayne Wilson ,  Fred Chu

IPC分类号： H04W24/02 ,  H04M3/18 ,  H04B3/32 ,  H04M3/34 ,  H04L12/70 ,  H04M3/30

CPC分类号： H04M3/18 ,  H04B3/32 ,  H04L27/2601 ,  H04L2012/5675 ,  H04M3/306 ,  H04M3/34 ,  H04W24/02

摘要： A communication system comprises a plurality of line cards having transceivers coupled to a plurality of subscriber lines. Each line card has at least one active transceiver within the same vectoring group, and each line card also has vector logic capable of cancelling crosstalk induced by an active transceiver that is a member of the vectoring group. Further, the line cards are coupled to one another via a ring connection across which vectoring information is passed from one line card to the next. In the event of a failure of one of the line cards, the failed card is bypassed by the vectoring stream so that the operational line cards can continue crosstalk vectoring operations despite such failure.

摘要翻译： 通信系统包括具有耦合到多个用户线的收发器的多个线路卡。 每个线路卡在相同的向量组内具有至少一个有源收发信机，并且每个线路卡还具有能够消除由作为向量组的成员的有源收发信机所引起的串扰的向量逻辑。 此外，线卡通过环形连接彼此耦合，通过该环连接向导信息从一个线卡传递到下一个线卡。 在线卡之一发生故障的情况下，故障卡被矢量流旁路，使得即使发生故障，运行线路卡也可以继续进行串扰向量运算。

公开(公告)号：US20130010585A1

公开(公告)日：2013-01-10

申请号：US13178249

申请日：2011-07-07

申请人： Fred Chu ,  Kenneth D. Ko ,  Richard Goodson ,  Kevin W. Schneider

发明人： Fred Chu ,  Kenneth D. Ko ,  Richard Goodson ,  Kevin W. Schneider

IPC分类号： H04J3/10

CPC分类号： H04B3/32

摘要： A communication system has a trunk extending from a network facility, such as a central office, with a plurality of distribution points positioned along the trunk. Each leg of the trunk defines a shared channel that permits peak data rates much greater than what would be achievable without channel sharing. As an example, the connections of each respective trunk leg may be bonded. Further, the same modulation format and crosstalk vectoring are used for each leg of the trunk. The crosstalk vectoring cancels both far-end crosstalk (FEXT) that couples between connections of a given trunk leg and crossover crosstalk that couples between one trunk leg and another. In addition, logic determines an amount of excess capacity available for each leg of the trunk and controls error correction based on the determined excess capacity.

摘要翻译： 通信系统具有从诸如中心局的网络设施延伸的中继线，沿着中继线定位多个分配点。 中继线的每一条都定义了一个共享信道，允许峰值数据速率远远大于没有信道共享可实现的数据速率。 作为示例，每个相应的中继支路的连接可以被联结。 此外，相同的调制格式和串扰向量被用于中继线的每个支路。 串扰向量消除了在给定中继线的连接之间耦合的远端串扰（FEXT）和耦合在一个中继线与另一个之间的交叉串扰。 此外，逻辑决定了可用于中继线的每个支路的超量容量的量，并且基于所确定的过剩容量来控制纠错。