公开(公告)号：US20060092967A1

公开(公告)日：2006-05-04

申请号：US11265245

申请日：2005-11-03

申请人： Jeffrey Bergeron ,  Huck Loh ,  James Bacque ,  Derrick Remedios

发明人： Jeffrey Bergeron ,  Huck Loh ,  James Bacque ,  Derrick Remedios

IPC分类号： H04L12/66

CPC分类号： H04L12/2801

摘要： Ethernet packets are transmitted in full duplex mode over a single coaxial cable, such as RG6 and RG59. Symmetrical full duplex operation is achieved by separating the upstream and downstream signals in the frequency domain whereby a 100BaseT signal is transmitted unmodified in one direction while the other is modulated upon a high frequency carrier to be transmitted in the other direction. In a second embodiment, the separation is in the time domain whereby the signals are sampled in blocks, each block compressed in time and transmitted at a higher rate, thus allowing for the interleaving of upstream and downstream blocks on the same coaxial cable. In a third embodiment, different rate upstream and downstream signals are separated in the frequency domain, but without modulation. The resulting asymmetrical 1000/100 Mb/s Ethernet over coax link is valuable in network architectures where asymmetry in the up and down traffic loads is expected.