METHOD OF PREDICTING ACCESS DELAY TIME REFLECTED BY PIGGYBACK BANDWIDTH IN DATA OVER CABLE SERVICE INTERFACE SPECIFICATION CABLE NETWORK

摘要

PURPOSE: A method for predicting the access delay time considering the piggyback band request in the DOCSIS(Data Over Cable Service Interface Specification) cable network is provided to reduce the band request collision probability by reducing the number of cable modems which is participating for the band request in the competition process. CONSTITUTION: A variable is set based on the initial network status(401). By using the operated CMTS(Cable Modem Termination System), the changed contents of a network is checked(403). An access delay time is forecasted in case the change is generated in the network in the result of the changed contents(404,405). The forecasted access delay time is the average of the delay time created by transmitting the packet from a CM(Cable Modem) to a CMTS.