CMTS UPSTREAM CHANNEL BANDWIDTH SCHEDULER
    1.
    发明申请
    CMTS UPSTREAM CHANNEL BANDWIDTH SCHEDULER 有权
    CMTS上行通道带宽调度器

    公开(公告)号:US20090249417A1

    公开(公告)日:2009-10-01

    申请号:US12060824

    申请日:2008-04-01

    IPC分类号: H04N7/173

    摘要: In one embodiment, a Cable Modem Termination System (CMTS) generates a bandwidth grant message corresponding to a time segment. The CMTS identifies a portion of the time segment to be assigned according to received bandwidth request messages originating from downstream cable modems. The CMTS determines whether a remaining portion of the time segment can accommodate more than N broadcast contention slots, and if so, selects at least one of the cable modems for receiving an upstream bandwidth boost.

    摘要翻译: 在一个实施例中,电缆调制解调器终端系统(CMTS)生成对应于时间段的带宽授权消息。 CMTS根据从下游电缆调制解调器产生的接收的带宽请求消息识别要分配的时间段的一部分。 CMTS确定时间段的剩余部分是否可以容纳多于N个广播竞争时隙,如果是,则选择用于接收上行带宽增强的至少一个电缆调制解调器。

    Dynamically and fairly allocating RF channel bandwidth in a wideband cable system
    3.
    发明授权
    Dynamically and fairly allocating RF channel bandwidth in a wideband cable system 有权
    在宽带电缆系统中动态和公平地分配RF信道带宽

    公开(公告)号:US08861546B2

    公开(公告)日:2014-10-14

    申请号:US12399457

    申请日:2009-03-06

    IPC分类号: H04J3/16

    摘要: In one example, a Cable Modem Termination System (CMTS) determines target Radio Frequency (RF) bandwidth amounts for Data Over Cable System Interface Specification (DOCSIS) bonding groups according to the DOCSIS priority of active flows within the bonding groups. The CMTS then tunes bandwidth allocation amongst the DOCSIS bonding groups according to the target bandwidth amounts. The target bandwidth amounts can be recalculated at intervals, and the bandwidth allocation re-tuned at the intervals, to account for changes in flow activity or DOCSIS priority assignment.

    摘要翻译: 在一个示例中,电缆调制解调器终端系统(CMTS)根据绑定组内的活动流的DOCSIS优先级来确定数据到电缆系统接口规范(DOCSIS)绑定组的目标射频(RF)带宽量。 然后,CMTS根据目标带宽量调整DOCSIS绑定组之间的带宽分配。 可以间隔重新计算目标带宽量,并且以间隔重新调整带宽分配,以考虑流动活动或DOCSIS优先级分配的变化。

    Method and apparatus for N+1 RF switch with passive working path and active protection path
    4.
    发明授权
    Method and apparatus for N+1 RF switch with passive working path and active protection path 有权
    具有被动工作路径和主动保护路径的N + 1 RF开关的方法和装置

    公开(公告)号:US07817540B1

    公开(公告)日:2010-10-19

    申请号:US10141893

    申请日:2002-05-08

    IPC分类号: G01R31/08

    摘要: The present disclosure relates an improved cable data switching unit that provides a fail-over system whereby one line card can protect a plurality of US (upstream) or DS (downstream) channel line cards, providing N+1 protection, with one linecard being able to protect N number of working linecards. When a failure is detected in a working linecard, the signals being routed by the failing linecards are re-routed seamlessly to a protect linecard. This disclosure provides for data to be passively routed, providing for data flow even if power is lost.

    摘要翻译: 本公开涉及一种改进的电缆数据交换单元,其提供故障转移系统,由此一个线路卡可以保护多个US(上游)或DS(下游)信道线路卡,提供N + 1保护,一个线卡可以 保护N个工作线卡。 当在工作线卡中检测到故障时,由故障线路卡路由的信号将无缝地重新路由到保护线卡。 该公开内容提供了被动地路由的数据,即使断电也提供数据流。

    CMTS upstream channel bandwidth scheduler
    5.
    发明授权
    CMTS upstream channel bandwidth scheduler 有权
    CMTS上行通道带宽调度程序

    公开(公告)号:US08134921B2

    公开(公告)日:2012-03-13

    申请号:US12060824

    申请日:2008-04-01

    IPC分类号: H04J3/16

    摘要: In one embodiment, a Cable Modem Termination System (CMTS) generates a bandwidth grant message corresponding to a time segment. The CMTS identifies a portion of the time segment to be assigned according to received bandwidth request messages originating from downstream cable modems. The CMTS determines whether a remaining portion of the time segment can accommodate more than N broadcast contention slots, and if so, selects at least one of the cable modems for receiving an upstream bandwidth boost.

    摘要翻译: 在一个实施例中,电缆调制解调器终端系统(CMTS)生成对应于时间段的带宽授权消息。 CMTS根据从下游电缆调制解调器产生的接收的带宽请求消息识别要分配的时间段的一部分。 CMTS确定时间段的剩余部分是否可以容纳多于N个广播竞争时隙,如果是,则选择用于接收上行带宽增强的至少一个电缆调制解调器。

    DYNAMICALLY AND FAIRLY ALLOCATING RF CHANNEL BANDWIDTH IN A WIDEBAND CABLE SYSTEM
    6.
    发明申请
    DYNAMICALLY AND FAIRLY ALLOCATING RF CHANNEL BANDWIDTH IN A WIDEBAND CABLE SYSTEM 有权
    在宽带电缆系统中动态和公平地分配RF信道带宽

    公开(公告)号:US20100226390A1

    公开(公告)日:2010-09-09

    申请号:US12399457

    申请日:2009-03-06

    IPC分类号: H04J3/16

    摘要: In one example, a Cable Modem Termination System (CMTS) determines target Radio Frequency (RF) bandwidth amounts for Data Over Cable System Interface Specification (DOCSIS) bonding groups according to the DOCSIS priority of active flows within the bonding groups. The CMTS then tunes bandwidth allocation amongst the DOCSIS bonding groups according to the target bandwidth amounts. The target bandwidth amounts can be recalculated at intervals, and the bandwidth allocation re-tuned at the intervals, to account for changes in flow activity or DOCSIS priority assignment.

    摘要翻译: 在一个示例中,电缆调制解调器终端系统(CMTS)根据绑定组内的活动流的DOCSIS优先级来确定数据到电缆系统接口规范(DOCSIS)绑定组的目标射频(RF)带宽量。 然后,CMTS根据目标带宽量调整DOCSIS绑定组之间的带宽分配。 可以间隔重新计算目标带宽量,并且以间隔重新调整带宽分配,以考虑流动活动或DOCSIS优先级分配的变化。

    System for combining and splitting signal in a cable modem terminal system
    7.
    发明授权
    System for combining and splitting signal in a cable modem terminal system 有权
    用于在电缆调制解调器终端系统中组合和分离信号的系统

    公开(公告)号:US07657915B1

    公开(公告)日:2010-02-02

    申请号:US10871884

    申请日:2004-06-18

    IPC分类号: H04N7/173 H04J3/04 H04J3/02

    摘要: A system and method for splitting and combining signal in a Cable Modem Terminal Station (CMTS). This system uses a hierarchal approach to connect RF modules to PHY modules. A first splitter and combiner connects each N input in a module to each of N outputs. Each of Nth output is then connected to a Nth second splitter/combiner which in turn connects each input to each output.

    摘要翻译: 一种用于在电缆调制解调器终端站(CMTS)中分离和组合信号的系统和方法。 该系统使用分层方法将RF模块连接到PHY模块。 第一分路器和组合器将模块中的每个N输入连接到N个输出中的每一个。 然后将第N个输出中的每一个连接到第N个第二分波器/组合器,该第二分波器/组合器又将每个输入连接到每个输出。

    Transmission control method between a plurality of stations and
corresponding stations and communication systems
    8.
    发明授权
    Transmission control method between a plurality of stations and corresponding stations and communication systems 失效
    多个站点和相应站点和通信系统之间的传输控制方法

    公开(公告)号:US5896385A

    公开(公告)日:1999-04-20

    申请号:US692999

    申请日:1996-08-06

    IPC分类号: H04J3/16 H04L12/56

    CPC分类号: H04W74/0841

    摘要: The invention relates to a method of controlling the operation of a network in which stations share a communication channel. The upstream link of this channel is divided into time slots (4), consisting of a data slot (6) and m control minislots (51a, . . . , 51i, . . . , 51m). This method, comprising a reservation step provided for the transmission, within the minislots, of data packet transmission requests to a head-end station and a transmission step provided for the transmission of these data packets when corresponding acknowledgement signals have been returned to the concerned stations by the head-end station, also comprises an additional congestion resolution step, provided for improving the performance of transmission by an analysis of the occurrence of collisions between transmission requests within the minislots and a subsequent modification of the timing signals of the channel. This modification consists of an allocation of a part of the channel dedicated to the data slots to additional transmission requests, for example of at least an idle data slot (6).

    摘要翻译: 本发明涉及一种控制网络的操作的方法,其中站共享通信信道。 该信道的上行链路被分为时隙(4),由时隙(6)和m个控制小时隙(51a,...,51i,...,51m)组成。 该方法包括在微时隙内向前端站传输数据分组传输请求的预留步骤,以及当相应的确认信号已经返回到相关站点时为传输这些数据分组而传送的传输步骤 头端站还包括附加的拥塞解决步骤,用于通过分析在微时隙内的传输请求之间的冲突的发生以及后续修改信道的定时信号来提高传输的性能。 该修改包括将专用于数据时隙的信道的一部分分配给附加传输请求,例如至少空闲数据时隙(6)。