APPARATUS AND METHOD FOR SWITHCH OPERATION OF DOWNSTREAM TERMINAL PLATFORM FOR IP DATA TRANSMISSION USING LEGACY TRANSMISSION SYSTEM IN HFC NETWORK

摘要

An apparatus and a method for a switch operation of downstream terminal platform for IP data transmission using an existing transmission system in an HFC network are provided to use a broadband downstream transfer system and an existing DOCSIS(Data-Over-Cable Service Interface Specification) 2.x based data transmission system, thereby realizing bidirectional data transmission. An RF(Radio Frequency) transmitter distributes and combines a signal transceived through an HFC(Hybrid Fiber Coaxial) network. A broadband downstream receiver(106) processes a broadband signal received through the RF transmitter. A CM(Cable Modem)(107) processes data transmitted and received through the RF transmitter. An IP layer switch transmits data to a customer premises device or transmits user data to a headend through the CM.