COAXIAL NETWORK COMMUNICATION NODE AND METHOD FOR COMMUNICATING MULTIMEDIA OVER COAXIAL NETWORK WITH REDUCED-LENGTH CYCLIC PREFIXES

摘要

PROBLEM TO BE SOLVED: To provide a coaxial network communication node and method for communicating multimedia over coaxial network with reduced-length cyclic prefixes.SOLUTION: A coaxial network communication node receives multimedia content from one or more other nodes in a coaxial network. The node determines a delay-spread of a coaxial channel on the basis of receipt of a probe from a transmitting node and configures a channel-shortening time-domain equalizer (TEQ) filter to effectively shorten the channel on the basis of the delay spread. The node instructs the transmitting node to shorten the length of a cyclic prefix for subsequent packet-based transmissions to be received from the transmitting node. The probe is stored and reused until the channel-shortening TEQ filter converges. The nodes may be configured to communicate in accordance with the MoCA specifications.