公开(公告)号：US08743933B2

公开(公告)日：2014-06-03

申请号：US13341651

申请日：2011-12-30

申请人： Richard Prodan ,  Niki Pantelias ,  Thomas Kolze

发明人： Richard Prodan ,  Niki Pantelias ,  Thomas Kolze

IPC分类号： H04B1/38

CPC分类号： H04L5/1446 ,  H04L12/2801

摘要： Embodiments provide solutions to reduce power utilization (either at individual cable modems or in the overall network) in future cable modem networks. Particularly, embodiments seek to reduce power utilization at individual cable modems and in the overall network, by allocating upstream frequency bands and/or transmission modulation schemes among cable modems while accounting for cable loss experienced by individual upstream cable modem transmissions. According to embodiments, frequency spectrum and modulation scheme allocation techniques are provided to optimize power utilization and enable lower upstream transmission power by cable modems while maintaining similar signal strength of received signals or lower signal strength with reduced SNR requirements using lower capacity modulation at the headend.

摘要翻译： 实施例提供了在将来的有线调制解调器网络中降低功率利用（在单个电缆调制解调器或整个网络中）的解决方案。 具体地，实施例通过在电缆调制解调器中分配上行频带和/或传输调制方案，同时考虑各个上行电缆调制解调器传输所经历的电缆损耗，寻求降低各个电缆调制解调器和整个网络的功率利用率。 根据实施例，提供频谱和调制方案分配技术以优化功率利用并且通过电缆调制解调器实现较低的上行传输功率，同时在前端使用较低容量的调制来维持接收信号的相似信号强度或具有降低的SNR要求的较低信号强度。

公开(公告)号：US20120269242A1

公开(公告)日：2012-10-25

申请号：US13341651

申请日：2011-12-30

申请人： Richard PRODAN ,  Niki Pantelias ,  Thomas Kolze

发明人： Richard PRODAN ,  Niki Pantelias ,  Thomas Kolze

IPC分类号： H04B1/38

CPC分类号： H04L5/1446 ,  H04L12/2801

摘要： Embodiments provide solutions to reduce power utilization (either at individual cable modems or in the overall network) in future cable modem networks. Particularly, embodiments seek to reduce power utilization at individual cable modems and in the overall network, by allocating upstream frequency bands and/or transmission modulation schemes among cable modems while accounting for cable loss experienced by individual upstream cable modem transmissions. According to embodiments, frequency spectrum and modulation scheme allocation techniques are provided to optimize power utilization and enable lower upstream transmission power by cable modems while maintaining similar signal strength of received signals or lower signal strength with reduced SNR requirements using lower capacity modulation at the headend.

摘要翻译： 实施例提供了在将来的有线调制解调器网络中降低功率利用（在单个电缆调制解调器或整个网络中）的解决方案。 具体地，实施例通过在电缆调制解调器中分配上行频带和/或传输调制方案，同时考虑各个上行电缆调制解调器传输所经历的电缆损耗，寻求降低各个电缆调制解调器和整个网络的功率利用率。 根据实施例，提供频谱和调制方案分配技术以优化功率利用并且通过电缆调制解调器实现较低的上行传输功率，同时在前端使用较低容量的调制来维持接收信号的相似信号强度或具有降低的SNR要求的较低信号强度。

公开(公告)号：US20050097617A1

公开(公告)日：2005-05-05

申请号：US10989209

申请日：2004-11-13

申请人： Bruce Currivan ,  Richard Prodan ,  Niki Pantelias ,  Thomas Kolze

发明人： Bruce Currivan ,  Richard Prodan ,  Niki Pantelias ,  Thomas Kolze

IPC分类号： H04B1/707 ,  H04B7/216 ,  H04J11/00 ,  H04L25/03 ,  H04L25/49 ,  H04L27/34 ,  H04N7/173 ,  H04B7/212 ,  H04N7/16

CPC分类号： H04B7/216 ,  H04B1/71 ,  H04B1/7107 ,  H04L25/03038 ,  H04L25/03343 ,  H04L25/49 ,  H04L27/3405 ,  H04L2025/03375 ,  H04L2025/03477 ,  H04N7/17309 ,  H04N21/42676

摘要： A cable modem communication system includes a plurality of Cable Modems (CMs), a CM network segment, and a Cable Modem Termination System (CMTS). The CMTS segregates the plurality of CMs into a first group of CMs with which standard registering and ranging operations are performed and a second group of CMs with which attenuated transmission registering and ranging operations are performed. Each CM of the first group of CMs operable to perform registering and ranging operations by transmitting a ranging burst of a first format. Each CM of the second group of CMs operable to perform registering and ranging operations by transmitting a ranging burst of a second format that differs from the ranging burst of the first format. The CMTS may include a rake receiver that receives and demodulates a plurality of multi-path copies of the ranging burst of the second format.

摘要翻译： 电缆调制解调器通信系统包括多个有线调制解调器（CM），CM网络段和有线调制解调器终端系统（CMTS）。 CMTS将多个CM分离成执行标准注册和测距操作的第一组CM，以及执行衰减的传输注册和测距操作的第二组CM。 第一组CM的每个CM可操作以通过发送第一格式的测距突发来执行注册和测距操作。 第二组CM的每个CM可操作以通过发送与第一格式的测距脉冲串不同的第二格式的测距脉冲串来执行注册和测距操作。 CMTS可以包括接收和解调第二格式的测距突发的多个多路径副本的瑞克接收机。

公开(公告)号：US08369433B2

公开(公告)日：2013-02-05

申请号：US12986772

申请日：2011-01-07

申请人： Joel I. Danzig ,  Richard S. Prodan ,  Niki Pantelias ,  Thomas Kolze ,  Victor T. Hou ,  Taruna Tjahjadi

发明人： Joel I. Danzig ,  Richard S. Prodan ,  Niki Pantelias ,  Thomas Kolze ,  Victor T. Hou ,  Taruna Tjahjadi

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04N5/40 ,  H04L5/06 ,  H04L25/03006 ,  H04L27/36

摘要： Embodiments of a digital up-converter and an N-channel modulator are provided herein. The embodiments of the digital up-converter, in combination with the N-channel modulator, are capable of efficiently filling the spectrum of one or more RF signals with one or more types of information signals. For example, the digital up-converter can fill the spectrum of one or more RF signals with both broadcast and narrowcast video and data signals. In addition, the digital up-converter is capable of flexibly mapping the information signals to one or more channels of the one or more RF signals using a novel, three-level switching architecture.

公开(公告)号：US07701978B2

公开(公告)日：2010-04-20

申请号：US10809893

申请日：2004-03-26

申请人： Thomas Kolze ,  Bruce Currivan ,  Niki Pantelias

发明人： Thomas Kolze ,  Bruce Currivan ,  Niki Pantelias

IPC分类号： H04J3/06

CPC分类号： H04J3/0638 ,  H04J3/0688 ,  H04L1/004 ,  H04L7/048 ,  H04L12/2801

摘要： A central entity and/or a remote device in a communication system are designed to address the problem of maintaining upstream synchronization in the remote device after loss of the downstream signal. The system maintains upstream transmissions from the remote device in a Synchronous-Code Division Multiple Access (S-CDMA) or perhaps Synchronous-Time Division Multiple Access (S-TDMA) mode that does not degrade performance caused by via poor upstream timing or a need for re-ranging. By providing novel functionality at the central entity for synchronizing first and second downstream signals and/or by providing novel functionality at the remote device for determining a symbol clock offset between a first terminated downstream signal and a second re-acquired downstream signal, embodiments of the present invention maintain synchronization through the loss of the downstream signal, thereby minimizing the need for re-ranging and avoiding poorly timed upstream bursts.

摘要翻译： 通信系统中的中央实体和/或远程设备被设计为解决在丢失下行信号之后维护远程设备中的上行同步的问题。 系统通过同步码分多址（S-CDMA）或可能的同步时分多址（S-TDMA）模式维护来自远程设备的上行传输，该模式不会因经过差的上行定时或需要而导致性能下降 重新定位 通过在中央实体提供用于同步第一和第二下游信号的新颖功能和/或通过在远程设备处提供新颖的功能来确定第一终止的下行信号和第二重新获得的下行信号之间的符号时钟偏移， 本发明通过下游信号的丢失来维持同步，从而最小化对重新测距的需要，并避免不良定时的上行脉冲串。

公开(公告)号：US20070098007A1

公开(公告)日：2007-05-03

申请号：US11261652

申请日：2005-10-31

申请人： Richard Prodan ,  Joel Danzig ,  Thomas Quigley ,  Niki Pantelias

发明人： Richard Prodan ,  Joel Danzig ,  Thomas Quigley ,  Niki Pantelias

IPC分类号： H04B7/212

CPC分类号： H04L45/24 ,  H04L5/0007 ,  H04L12/2801 ,  H04L25/14 ,  H04L27/34 ,  H04L69/14 ,  H04N7/16 ,  H04N7/17309 ,  H04N21/2385 ,  H04N21/6118 ,  H04N21/6168 ,  H04N21/6377 ,  H04N21/658 ,  Y02D50/30

摘要： A communication system that includes a supervisory node (e.g., a headend) and one or more remote nodes (e.g., cable modems). Packets are transmitted between the supervisory node and the one or more remote nodes via RF channels. A plurality of the RF channels are bonded, such that packets may be transmitted via any one or more of the RF channels that are bonded. Bonding may include higher-layer bonding and/or lower-layer bonding. In higher-layer bonding, the communication system further includes a forwarder and a plurality of edge modulators. Each edge modulator is connected to a different RF channel or group of RF channels. The forwarder determines to which edge modulator one or more packets or flows are to be transmitted. In lower-layer bonding, a packet is split into pieces. The pieces are assigned to respective RF channels that are associated with an edge modulator for transmission to a remote node.

摘要翻译： 包括监控节点（例如头端）和一个或多个远程节点（例如，电缆调制解调器）的通信系统。 分组通过RF信道在监控节点和一个或多个远程节点之间传输。 多个RF信道被绑定，使得分组可以经由被绑定的RF信道中的任何一个或多个来传输。 键合可以包括更高层的键合和/或下层键合。 在较高层接合中，通信系统还包括转发器和多个边缘调制器。 每个边缘调制器连接到不同的RF信道或一组RF信道。 转发器确定哪个边缘调制器要发送一个或多个数据包或流。 在低层连接中，分组被分割成块。 将这些片段分配给与边缘调制器相关联的相应RF信道，以传输到远程节点。

公开(公告)号：US08457040B2

公开(公告)日：2013-06-04

申请号：US10809685

申请日：2004-03-26

申请人： Thomas Kolze ,  Bruce Currivan ,  Niki Pantelias

发明人： Thomas Kolze ,  Bruce Currivan ,  Niki Pantelias

IPC分类号： H04B7/212

CPC分类号： H04L7/048 ,  H04J3/0638 ,  H04J3/0688 ,  H04L1/004

摘要： A central entity and/or a remote device in a communication system are designed to address the problem of maintaining upstream synchronization in the remote device after loss of the downstream signal. One issue of particular importance is maintaining upstream transmissions from the remote device in an S-CDMA (or perhaps S-TDMA) mode that do not degrade performance of the communication system via poor upstream timing or a need for re-ranging. By providing novel functionality at the central entity for synchronizing first and second downstream signals and/or by providing novel functionality at the remote device for determining a symbol clock offset between a first terminated downstream signal and a second re-acquired downstream signal, embodiments of the present invention facilitate maintenance of synchronization through the loss of the downstream signal, thereby minimizing the need for re-ranging and avoiding poorly timed upstream bursts.

摘要翻译： 通信系统中的中央实体和/或远程设备被设计为解决在丢失下行信号之后维护远程设备中的上行同步的问题。 一个特别重要的问题是在S-CDMA（或可能的S-TDMA）模式中维护来自远程设备的上行传输，其不会通过差的上行时序或重新测距的需要来降低通信系统的性能。 通过在中央实体提供用于同步第一和第二下游信号的新颖功能和/或通过在远程设备处提供新颖的功能来确定第一终止的下行信号和第二重新获得的下行信号之间的符号时钟偏移， 本发明便于通过丢失下行信号来维持同步，从而最小化对重新测距的需要，并避免不良定时的上行脉冲串。

公开(公告)号：US20110170632A1

公开(公告)日：2011-07-14

申请号：US12986772

申请日：2011-01-07

申请人： Joel I. Danzig ,  Richard S. Prodan ,  Niki Pantelias ,  Thomas Kolze ,  Victor T. Hou ,  Taruna Tjahjadi

发明人： Joel I. Danzig ,  Richard S. Prodan ,  Niki Pantelias ,  Thomas Kolze ,  Victor T. Hou ,  Taruna Tjahjadi

IPC分类号： H04L27/36 ,  H04L25/03

CPC分类号： H04N5/40 ,  H04L5/06 ,  H04L25/03006 ,  H04L27/36

摘要： Embodiments of a digital up-converter and an N-channel modulator are provided herein. The embodiments of the digital up-converter, in combination with the N-channel modulator, are capable of efficiently filling the spectrum of one or more RF signals with one or more types of information signals. For example, the digital up-converter can fill the spectrum of one or more RF signals with both broadcast and narrowcast video and data signals. In addition, the digital up-converter is capable of flexibly mapping the information signals to one or more channels of the one or more RF signals using a novel, three-level switching architecture.

摘要翻译： 本文提供数字上变频器和N沟道调制器的实施例。 数字上变频器与N信道调制器结合的实施例能够利用一种或多种类型的信息信号有效地填充一个或多个RF信号的频谱。 例如，数字上变频器可以用广播和窄视频和数据信号来填充一个或多个RF信号的频谱。 此外，数字上变频器能够使用新颖的三电平交换架构将信息信号灵活地映射到一个或多个RF信号的一个或多个信道。

公开(公告)号：US09020014B2

公开(公告)日：2015-04-28

申请号：US13341593

申请日：2011-12-30

申请人： Niki Pantelias ,  Scott Hollums

发明人： Niki Pantelias ,  Scott Hollums

IPC分类号： H04B1/38 ,  H04L12/28

CPC分类号： H04L12/2801 ,  H04L12/2865 ,  Y02D50/30

摘要： A cable modem termination system (CMTS) is disclosed that allocates one or more minislots of a super-frame arrangement to cable modems for upstream transmission. The super-frame arrangement includes multiple minislots that correspond to multiple communication channels of one or more super-frames. The CMTS receives requests for upstream bandwidth from the cable modems. The CMTS continuously allocates the minislots of the super-frame to provide upstream bandwidth grants to accommodate these requests. The CMTS communicates the upstream bandwidth grants as a single upstream bandwidth allocation map (MAP) to the cable modems.

摘要翻译： 公开了一种电缆调制解调器终端系统（CMTS），其将超帧布置的一个或多个微时隙分配给电缆调制解调器用于上行传输。 超帧布置包括对应于一个或多个超帧的多个通信信道的多个小时隙。 CMTS从电缆调制解调器接收对上行带宽的请求。 CMTS连续分配超帧的最小时隙以提供上行带宽授权以适应这些请求。 CMTS将上行带宽授权作为单个上行带宽分配映射（MAP）传送到电缆调制解调器。

公开(公告)号：US07990952B2

公开(公告)日：2011-08-02

申请号：US11889937

申请日：2007-08-17

申请人： Lisa V. Denney ,  Gale Shallow ,  Niki Pantelias ,  John Horton

发明人： Lisa V. Denney ,  Gale Shallow ,  Niki Pantelias ,  John Horton

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04J3/02 ,  H04N7/173

CPC分类号： H04L12/2801

摘要： A traffic prioritization system and method performs a coarse classification of upstream bursts at the physical interface of a wireless communications device. The wireless device monitors and controls communications with a plurality of remote wireless communications devices throughout a widely distributed network, including the Internet. The traffic prioritization system includes a burst receiver that receives and sends the upstream bursts to a classifier. At an appropriate time, the classifier receives the upstream bursts and queries a priority lookup table (LUT) to determine a priority classification. The priority classification is used to separate the bursts into two or more priority levels. The higher priority level is used to designate services having a low tolerance for delay, such as telephony. Upon classification, the upstream bursts are forwarded to one of several priority queues. Each priority queue corresponds to at least one priority level. The headend device services each priority queue such that the higher priority queues are serviced before the lower priority queues.

摘要翻译： 流量优先化系统和方法在无线通信设备的物理接口处执行上游脉冲串的粗略分类。 无线设备在包括因特网的广泛分布的网络中监视和控制与多个远程无线通信设备的通信。 流量优先系统包括一个突发接收器，它接收和发送上行脉冲串到分类器。 在适当的时间，分类器接收上游脉冲串并查询优先级查找表（LUT）以确定优先级分类。 优先级分类用于将突发分为两个或更多个优先级。 较高优先级用于指定具有较低延迟容限的服务，例如电话。 在分类时，上行突发被转发到几个优先级队列之一。 每个优先级队列对应于至少一个优先级。 前端设备为每个优先级队列提供服务，使得较低优先级队列在较低优先级队列之前被服务。