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    Network architecture for intelligent network elements
    4.
    发明申请
    Network architecture for intelligent network elements 有权
    智能网元的网络架构

    公开(公告)号：US20050251846A1

    公开(公告)日：2005-11-10

    申请号：US11180889

    申请日：2005-07-12

    申请人： Subrahmanyam Dravida ,  Dev Gupta ,  Frederick Peralta ,  Kiran Rege ,  Manas Tandon

    发明人： Subrahmanyam Dravida ,  Dev Gupta ,  Frederick Peralta ,  Kiran Rege ,  Manas Tandon

    IPC分类号： H04L12/24 ,  H04L12/28 ,  H04L12/46 ,  H04L12/56 ,  H04L29/12 ,  H04N7/10 ,  H04N7/173 ,  H04Q3/00 ,  H04N7/18

    CPC分类号： H04L61/2015 ,  H04L12/2801 ,  H04L12/2856 ,  H04L12/2859 ,  H04L12/2861 ,  H04L12/4641 ,  H04L12/4645 ,  H04L29/12216 ,  H04L41/0806 ,  H04L41/0886 ,  H04L41/12 ,  H04L41/5003 ,  H04L47/10 ,  H04L47/20 ,  H04L47/2416 ,  H04L47/2425 ,  H04L47/2433 ,  H04L47/2441 ,  H04L47/2491 ,  H04L47/32 ,  H04L2012/5605 ,  H04L2012/5606 ,  H04L2012/561 ,  H04L2012/5651 ,  H04L2012/5679 ,  H04N7/10 ,  H04N7/17309 ,  H04Q3/0045

    摘要： Hybrid fiber/coax networks employ the existing cable plant used for cable TV and transmit data signals in a frequency bandwidth above that which is used for cable TV. As this cable plant was deployed in a tree and branch topology, data transmissions may be susceptible to noise, variable transmission loss and frequency dispersion, particularly in the upstream direction. Further, due to the tree and branch topology, homes at the far end of the network experience much greater loss than do the homes that are near to the headend/ONU. The present system, which uses point-to-point data links between intelligent network elements located in the feeder/distribution network to provide reliable, secure, bidirectional broadband access. Digital signals are terminated at the intelligent network elements, switched and regenerated for transmission across additional upstream or downstream data links as needed to connect a home to a headend or router. The intelligent network elements can be co-located with or replace the standard network elements to take advantage of existing network configurations. The standard network elements can be selectively replaced by the intelligent network elements in an incremental approach. A tree-and-branch network architecture is therefore established in which each intelligent network element is assigned a routing ID employed in the point-to-point transmissions while leaving legacy analog signals unimpeded. In this manner, the data links are made over relatively short runs of coax cable, which can provide greater bandwidth than the typical end-to-end feeder/distribution connection between a home and the headend or optical network unit.

    摘要翻译： 混合光纤/同轴电缆网络采用用于有线电视的现有电缆设备，并以高于用于有线电视的频率带宽传输数据信号。 由于该电缆厂部署在树型和分支拓扑结构中，数据传输可能会受到噪声，可变传输损耗和频率分散的影响，特别是在上行方向。 此外，由于树和分支拓扑，网络远端的家庭比靠近头端/ ONU的家庭遭受更大的损失。 该系统使用位于馈线/分配网络中的智能网络元件之间的点对点数据链路来提供可靠，安全的双向宽带接入。 数字信号在智能网络元件处被终止，被切换和再生以用于在将家庭连接到头端或路由器所需的附加上游或下游数据链路上传输。 智能网络元件可以与标准网络元件共同定位或替换，以利用现有的网络配置。 标准网元可以以增量方式由智能网元选择性地替代。 因此，建立了一种树分支网络架构，其中每个智能网络元件被分配在点对点传输中采用的路由ID，同时保持传统模拟信号不受阻碍。 以这种方式，数据链路通过相对较短的同轴电缆运行进行，这可以提供比归属和前端或光网络单元之间的典型端到端馈线/分配连接更大的带宽。

    Technique for packet compression in an application level multicast
    7.
    发明授权
    Technique for packet compression in an application level multicast 有权
    应用层组播中的数据包压缩技术

    公开(公告)号：US08149831B2

    公开(公告)日：2012-04-03

    申请号：US12621831

    申请日：2009-11-19

    申请人： Krishna Balachandran ,  Katherine Guo ,  Kiran Rege

    发明人： Krishna Balachandran ,  Katherine Guo ,  Kiran Rege

    IPC分类号： H04L12/56

    CPC分类号： H04L12/1881 ,  H04L69/04

    摘要： In an application level multicast (ALM), multiple flows of data packets containing shared material are destined for different devices. A packet compression device is used to compress the data packets to reduce traffic load. This compression device includes a cache for recording the payloads of selected data packets which currently are not of record in the cache. If it is determined that the cache has therein a record of an identical version of the payload of a data packet, the compression device releases a compressed version of the data packet which includes a representation of the payload in lieu of the actual payload.

    摘要翻译： 在应用层组播（ALM）中，包含共享资料的数据包的多个流将发往不同的设备。 分组压缩设备用于压缩数据包以减少流量负载。 该压缩装置包括用于记录当前未被记录在高速缓存中的所选数据分组的有效载荷的高速缓存。 如果确定高速缓存在其中具有数据分组的有效载荷的相同版本的记录，则压缩设备释放数据分组的压缩版本，其包括有效载荷的表示代替实际有效载荷。

    Technique For Packet Compression In An Application Level Multicast
    8.
    发明申请
    Technique For Packet Compression In An Application Level Multicast 有权
    应用层组播中的分组压缩技术

    公开(公告)号：US20110116503A1

    公开(公告)日：2011-05-19

    申请号：US12621831

    申请日：2009-11-19

    申请人： Krishna Balachandran ,  Katherine Guo ,  Kiran Rege

    发明人： Krishna Balachandran ,  Katherine Guo ,  Kiran Rege

    IPC分类号： H04L12/56 ,  H04J3/18

    CPC分类号： H04L12/1881 ,  H04L69/04

    摘要： In an application level multicast (ALM), multiple flows of data packets containing shared material are destined for different devices. A packet compression device is used to compress the data packets to reduce traffic load. This compression device includes a cache for recording the payloads of selected data packets which currently are not of record in the cache. If it is determined that the cache has therein a record of an identical version of the payload of a data packet, the compression device releases a compressed version of the data packet which includes a representation of the payload in lieu of the actual payload.

    摘要翻译： 在应用层组播（ALM）中，包含共享资料的数据包的多个流将发往不同的设备。 分组压缩设备用于压缩数据包以减少流量负载。 该压缩装置包括用于记录当前未被记录在高速缓存中的所选数据分组的有效载荷的高速缓存。 如果确定高速缓存在其中具有数据分组的有效载荷的相同版本的记录，则压缩设备释放数据分组的压缩版本，其包括有效载荷的表示代替实际有效载荷。