调整功率的方法、网络管理系统、电缆调制解调器终端系统和电缆调制解调器

    公开(公告)号:WO2018023701A1

    公开(公告)日:2018-02-08

    申请号:PCT/CN2016/093538

    申请日:2016-08-05

    IPC分类号: H04B3/54

    摘要: 本发明提供了调整功率的方法、网络管理系统、CMTS和CM。调整功率的方法包括:网络管理系统获取与CMTS相连的两个CM间的第一SNR CM ,第一SNR CM 表示第一CM接收到的CMTS向第一CM发送的信号与第一CM接收到的第二CM向CMTS发送的信号间的信号比;网络管理系统根据第一SNR CM 以及SNR CM 与CMTS向CM发送信号使用的发送功率之间的第一关系,向CMTS发送指示信息,指示信息用于指示CMTS调整CMTS向第一CM发送信号使用的发送功率,使得调整后的发送功率对应的SNR CM 为两个CM间的同频互干扰信噪比目标值。本发明提供了调整功率的方法、网络管理系统、CMTS和CM能够根据CM间的同频互干扰信噪比以及该同频互干扰与功率之间的关系来调整CMTS的功率,从而可以灵活改变CM间的同频互干扰信噪比,进而可以灵活地对CM进行分组。

    MULTIPLE CORE SOFTWARE FORWARDING
    2.
    发明申请
    MULTIPLE CORE SOFTWARE FORWARDING 审中-公开
    多核心软件转发

    公开(公告)号:WO2018013443A1

    公开(公告)日:2018-01-18

    申请号:PCT/US2017/041285

    申请日:2017-07-10

    申请人: HARMONIC, INC.

    IPC分类号: H04L12/28 H04L29/06

    摘要: Approaches for performing all DOCSIS downstream and upstream data forwarding functions using executable software. DOCSIS data forwarding functions may be performed by classifying one or more packets, of a plurality of received packets, to a particular DOCSIS system component, and then processing the one or more packets classified to the same DOCSIS system component on a single CPU core. The one or more packets may be forwarded between a sequence of one or more software stages. The software stages may each be configured to execute on separate logical cores or on a single logical core.

    摘要翻译:

    使用可执行软件执行所有DOCSIS下游和上游数据转发功能的方法。 DOCSIS数据转发功能可以通过将多个接收到的分组中的一个或多个分组分类到特定DOCSIS系统组件,然后在单个CPU核心上处理分类到相同DOCSIS系统组件的一个或多个分组来执行。 一个或多个分组可以在一个或多个软件阶段的序列之间转发。 每个软件阶段都可以配置为在单独的逻辑内核或单个逻辑内核上执行。

    HYBRID ALL DIGITAL FIBER TO CATV CABLE SYSTEM AND METHOD
    5.
    发明申请
    HYBRID ALL DIGITAL FIBER TO CATV CABLE SYSTEM AND METHOD 审中-公开
    将所有数字光纤混合到CATV电缆系统和方法

    公开(公告)号:WO2013126351A1

    公开(公告)日:2013-08-29

    申请号:PCT/US2013/026750

    申请日:2013-02-19

    申请人: RAKIB, Shlomo

    发明人: RAKIB, Shlomo

    IPC分类号: H04B10/00

    摘要: Producing advanced HFC CATV cable systems while easing the burden of backward compatibility. The system improves CATV data carrying capacity by moving RF QAM modulators from the cable head end to various optical fiber nodes supplying neighborhood CATV cables, and sending data from the cable head IP backbone to the nodes over optical fiber as IP data packets. For high backward compatibility, the system digitizes legacy RF waveforms, or demodulates legacy QAM waveforms to QAM symbols, also transmits these over the optical fiber as IP data packets, and then reconstitutes back to original waveforms as needed. The system is thus able to easily handle legacy NTSC, FM, QPSK waveforms and do partial (QAM symbol level) compression of legacy QAM waveforms to and from multiple nodes without requiring additional optical fiber wavelengths. The system may use non-standard upstream/downstream CATV frequency splits, filter bank receivers, and FPGA/DSP/ASIC methods.

    摘要翻译: 生产先进的HFC CATV电缆系统,同时减轻向后兼容的负担。 该系统通过将RF QAM调制器从电缆头端移动到提供邻居CATV电缆的各种光纤节点,并通过光纤将数据从电缆头IP骨干网发送到节点,从而提高CATV数据承载能力,作为IP数据包。 为了实现高向后兼容性,系统将传统的RF波形数字化,或将传统QAM波形解调为QAM符号,并将其作为IP数据分组通过光纤传输,然后根据需要重新构建回原始波形。 因此,该系统能够容易地处理传统的NTSC,FM,QPSK波形,并且对来自多个节点的传统QAM波形进行部分(QAM符号级别)压缩,而不需要额外的光纤波长。 该系统可以使用非标准上行/下行CATV频率分割,滤波器组接收器和FPGA / DSP / ASIC方法。

    DISTRIBUTED CABLE MODEM TERMINATION SYSTEM WITH SOFTWARE RECONFIGUABLE MAC AND PHY CAPABILITY
    6.
    发明申请
    DISTRIBUTED CABLE MODEM TERMINATION SYSTEM WITH SOFTWARE RECONFIGUABLE MAC AND PHY CAPABILITY 审中-公开
    具有软件可重新配置的MAC和PHY能力的分布式电缆调制解调器终端系统

    公开(公告)号:WO2013126310A1

    公开(公告)日:2013-08-29

    申请号:PCT/US2013/026608

    申请日:2013-02-18

    申请人: RAKIB, Shlomo

    发明人: RAKIB, Shlomo

    IPC分类号: H04N7/16

    摘要: Distributed and software reconfigurable CMTS (CMRTS) device, based on MAC and PHY units with FPGA and DSP components, for a HFC CATV network. The various CATV RF modulators, such as QAM modulators, may be divided between QAM modulators located at the cable plant, and remote QAM modulators ideally located at the fiber nodes. A basic set of CATV QAM data waveforms may optionally be transmitted to the nodes using a first fiber, and a second set of IP/on-demand data may be transmitted to the nodes using an alternate fiber or alternate fiber frequency, and optionally using other protocols such as Ethernet protocols. The nodes will extract the data specific to each neighborhood and inject this data into unused QAM channels, thus achieving improved data transmission rates through finer granularity. A "virtual shelf" control system for managing and reconfiguring the FPGA and DSP based CMTRS units is also disclosed.

    摘要翻译: 基于具有FPGA和DSP组件的MAC和PHY单元的分布式和可重新配置的CMTS(CMRTS)设备,用于HFC CATV网络。 各种CATV RF调制器(例如QAM调制器)可以分布在位于电缆厂的QAM调制器和理想地位于光纤节点处的远程QAM调制器之间。 CATV QAM数据波形的一组基本组合可以可选地使用第一光纤传输到节点,并且可以使用替代光纤或备用光纤频率将第二组IP /点播数据发送到节点,并且可选地使用其他 协议如以太网协议。 节点将提取特定于每个邻域的数据,并将该数据注入未使用的QAM信道,从而通过更细粒度实现改进的数据传输速率。 还公开了一种用于管理和重新配置基于FPGA和DSP的CMTRS单元的“虚拟架”控制系统。

    METHODS OF ADAPTIVE CANCELLING AND SECONDARY COMMUNICATIONS CHANNELS FOR EXTENDED CAPABILITY HFC CABLE SYSTEMS
    7.
    发明申请
    METHODS OF ADAPTIVE CANCELLING AND SECONDARY COMMUNICATIONS CHANNELS FOR EXTENDED CAPABILITY HFC CABLE SYSTEMS 审中-公开
    自适应消除方法和二次通信信道扩展能力HFC电缆系统

    公开(公告)号:WO2013126297A1

    公开(公告)日:2013-08-29

    申请号:PCT/US2013/026549

    申请日:2013-02-16

    申请人: RAKIB, Shlomo

    发明人: RAKIB, Shlomo

    IPC分类号: H04N21/85

    摘要: A method to extend the downstream and upstream data carrying capability of an HFC CATV system. At the neighborhood level, the CATV cable (the primary channel) is divided into different segments connected by electrically active junctions. At the junctions, each segment is also connected to a secondary data channel, such as an optical fiber or ultrahigh RF frequency (1 GHz+) secondary channel, which can carry supplemental downstream narrowcast channels and upstream channels between a plurality of such CATV cable segments. At the junctions, some CATV primary channel RF signals such as broadcast channels are passed without interference, while certain primary channel downstream narrowcast RF channels and upstream narrowcast RF channels are precisely suppressed using adaptive cancelling methods. Such adaptive cancellation methods are superior to prior art lowpass, highpass, and bandpass filtering methods because they allow for more efficient use of limited CATV primary channel RF spectrum.

    摘要翻译: 一种扩展HFC CATV系统的下行和上行数据承载能力的方法。 在邻近层面,CATV电缆(主通道)被分为不同的段,通过电活动接头连接。 在连接处,每个段也连接到次级数据通道,例如光纤或超高频(1GHz +)次级通道,其可以在多个这样的CATV电缆段之间携带补充的下游窄通道和上行通道。 在交汇处,一些CATV主要信道RF信号(如广播信道)无干扰地通过,而使用自适应消除方法精确地抑制某些主信道下行窄带RF信道和上行窄带RF信道。 这种自适应消除方法优于现有技术的低通,高通和带通滤波方法,因为它们允许更有效地使用有限的CATV主信道RF频谱。

    METHOD, APPARATUS AND SYSTEM OF TRANSFERRING DATA BETWEEN ELEMENTS OF A CABLE COMMUNICATION DEVICE
    8.
    发明申请
    METHOD, APPARATUS AND SYSTEM OF TRANSFERRING DATA BETWEEN ELEMENTS OF A CABLE COMMUNICATION DEVICE 审中-公开
    方法,传输电缆通信设备元件数据的装置和系统

    公开(公告)号:WO2013122613A1

    公开(公告)日:2013-08-22

    申请号:PCT/US2012/031038

    申请日:2012-03-28

    IPC分类号: H04L29/12 H04L29/10 H04L27/00

    摘要: Some demonstrative embodiments include devices, systems and methods of transferring information between elements of a communication device. For example, a device may include a front-end to receive an analog downstream input including a plurality of downstream data channels, and to provide a digital serial downstream output including at least one continuous stream of constant-size downstream frames including a plurality of constant-size downstream data frames, which include downstream sample data of the plurality of downstream data channels; a serial interface including at least one serial lane to transfer the at least on stream of the digital serial downstream output; and a processor to receive the digital serial downstream over the serial interface, and to process the downstream data frames.

    摘要翻译: 一些演示实施例包括在通信设备的元件之间传送信息的设备,系统和方法。 例如,设备可以包括前端以接收包括多个下游数据信道的模拟下游输入,并且提供数字串行下游输出,其包括至少一个恒定尺寸的下游帧的连续流,包括多个常数 确定下游数据帧,其包括所述多个下游数据信道的下游采样数据; 串行接口,包括至少一个串行通道,用于传输数字串行下游输出的至少上游; 以及处理器,通过串行接口接收数字串行下游,并处理下游数据帧。

    METHOD, DEVICE AND SYSTEM FOR TRANSMITTING DATA IN COAXIAL NETWORK
    10.
    发明申请
    METHOD, DEVICE AND SYSTEM FOR TRANSMITTING DATA IN COAXIAL NETWORK 审中-公开
    用于在同轴网络中传输数据的方法,装置和系统

    公开(公告)号:WO2012103829A2

    公开(公告)日:2012-08-09

    申请号:PCT/CN2012072592

    申请日:2012-03-20

    发明人: ZHANG LI

    IPC分类号: H04L29/02

    摘要: Disclosed are a method, device and system for transmitting data in a coaxial network. The method comprises: in a current transmission cycle, obtaining the total length of data to be sent cached by a head end device; determining, according to sending duration of the total length of the data to be sent cached by the head end device, a downlink time slot length; when a next transmission cycle arrives, sending to a terminal device time slot indication information at least comprising the determined downlink time slot length; sending, according to the determined downlink time slot length, the data to be sent cached by the head end device to each terminal, and receiving terminal cached data sent by the terminal device. In the solution provided by the embodiments of the present invention, the head end device determines, according to the sending duration of the length of data thereof to be sent in the current transmission cycle, the downlink time slot length of the next transmission cycle, thereby dynamically adjusting, according to the size of the current downlink service stream, the downlink time slot length, so that the downlink time slot length matches the service traffic to the greatest degree, thus improving the bandwidth utilization ratio.

    摘要翻译: 公开了一种在同轴网络中传输数据的方法,装置和系统。 该方法包括:在当前传输周期中,获得由头端设备高速缓存的数据的总长度; 根据由所述头端设备缓存的要发送的数据的总长度的发送持续时间来确定下行链路时隙长度; 当下一个传输周期到达时,向终端设备发送至少包括所确定的下行链路时隙长度的时隙指示信息; 根据确定的下行链路时隙长度,将要由头端设备发送的数据发送到每个终端,以及接收由终端设备发送的终端缓存的数据。 在本发明实施例提供的解决方案中,头端设备根据当前发送周期中要发送的数据的长度的发送持续时间来确定下一个发送周期的下行链路时隙长度,从而 根据当前下行业务流的大小动态调整下行时隙长度,使得下行时隙长度与服务流量最大程度匹配,从而提高带宽利用率。