Patent ID: 6014545
Filing Date: 2000-01-11
Classification: H04H,H04L,H04N

Abstract:
A method for communicating in a cable network comprising the steps of:at a bridge that is connected to a first cable segment:(a) receiving from a shared communication medium a first carrier signal, having a first carrier frequency that is allocated for intra cable segment packet communication, containing packets modulated thereon,(b) demodulating selected packets originating in said first cable segment from said first carrier signal,(c) modulating each of said demodulated packets, that are destined outside of said first cable segment, onto a second carrier signal having a second carrier frequency that is allocated for upstream directed inter cable segment communication,(d) transmitting said second carrier signal on an upstream link of said common shared medium,(e) receiving at said bridge from a downstream link of said shared communication medium, to which at least a second cable segment is connected, a third carrier signal, having said second carrier frequency,(f) demodulating packets from said third carrier signal, and(g) modulating each of said packets that were demodulated from said third carrier signal onto said second carrier signal.