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1. 发明申请

US20120269192A1 Downstream Synchronous Multichannels for a Communications Management System 有权
标题翻译：用于通信管理系统的下行同步多通道
公开(公告)号：US20120269192A1
公开(公告)日：2012-10-25
申请号：US13411750
申请日：2012-03-05
申请人： Daniel H. HOWARD , Niki R. PANTELIAS , David M. PULLEN , John D. HORTON, JR. , Thomas J. QUIGLEY , Richard S. PRODAN
发明人： Daniel H. HOWARD , Niki R. PANTELIAS , David M. PULLEN , John D. HORTON, JR. , Thomas J. QUIGLEY , Richard S. PRODAN
IPC分类号： H04L12/28 , H04L12/56
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标准的下行链路。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。

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