CABLE MODEM AND DATA RECEIVE METHOD THEREOF

摘要

A cable modem and a data receiving method thereof are provided to control the repetitive reception of the same DSG data and stably receive the DSG data by making DSG(DOCSIS(Data Over Cable Service Interface Specification) Set-top box Gateway) data received through only a designated channel. A downlink channel searcher(100) searches a downlink channel and then receives the whole channel information message through the searched downlink channel. If the message is valid, a downlink channel searcher unit receives an additional broadcasting data information message. A channel information processor(200) receives additional broadcasting data by using the additional broadcasting data information message. A channel manager(400) stores and manages primary data receiving channels which can receive the whole channel information message and additional broadcasting data.