Hierarchical flow-level multi-channel communication
    64.
    发明授权
    Hierarchical flow-level multi-channel communication 有权
    分级流程级多通道通信

    公开(公告)号:US07792034B2

    公开(公告)日:2010-09-07

    申请号:US11261652

    申请日:2005-10-31

    IPC分类号: H04L1/16 H04J3/24

    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。

    Downstream Synchronous Multichannels for a Communications Management System
    66.
    发明申请
    Downstream Synchronous Multichannels for a Communications Management System 有权
    用于通信管理系统的下行同步多通道

    公开(公告)号:US20090092153A1

    公开(公告)日:2009-04-09

    申请号:US12258585

    申请日:2008-10-27

    IPC分类号: H04J3/24

    CPC分类号: H04L49/3072

    摘要: Downstream synchronous multichannel (DSSM) communications are provided among a plurality of carriers, each being a completely DOCSIS™ 2.0-compliant downstream. The synchronous multichannels support communications with both DSSM-capable communications nodes and non-DSSM-capable communications nodes (e.g., legacy cable modems). Non-DSSM packets are transmitted on a single channel. DSSM packets are split into multiple pieces, which are transmitted simultaneously on all available channels. Since the physical delay variation (e.g., group delay change) across the adjacent carriers is small (on the order of a symbol time), the multiple pieces arrive at the receiving communications nodes at nearly the same time and can be reassembled with minimal buffering and no packet ordering problems. To avoid causing trouble for the non-DSSM-capable communications nodes, the packet pieces are encapsulated with a header that causes the non-DSSM-capable communications nodes to silently discard them.

    摘要翻译: 在多个载波之间提供下行同步多信道(DSSM)通信,每个载波是完全符合DOCSIS(TM)2.0兼容的下行链路。 同步多通道支持与具有DSSM能力的通信节点和不支持DSSM的通信节点(例如,传统电缆调制解调器)的通信。 非DSSM分组在单个信道上传输。 DSSM数据包被分成多个部分,它们在所有可用信道上同时传输。 由于跨越相邻载波的物理延迟变化(例如,组延迟变化)较小(符号时间的顺序),多个片段几乎同时到达接收通信节点,并且可以以最小的缓冲重新组合, 没有数据包排序问题。 为了避免对具有非DSSM功能的通信节点造成麻烦,这些分组被封装成一个报头,该报头使非DSSM能力的通信节点静默地丢弃它们。