Patent ID: 8024725

Claim:
A method, executable by a central processing unit (CPU), of upgrading software through a software download in a terrestrial digital multimedia broadcasting (T-DMB) terminal, the method comprising the steps of: confirming an announcement message received by the terminal from a T-DMB station containing information for announcing when the software is downloaded by analyzing information in a plurality of fast information groups (FIGs) contained in a T-DMB signal; determining whether the software is downloaded according to information contained in the announcement message; if it is determined that the software is downloaded, storing ensemble information and download start time information among the information contained in the announcement message; matching a current ensemble with the stored ensemble when time according to the download start time information elapses; and confirming a signaling message for informing that the software is downloaded by analyzing information in a FIG received through the matched ensemble, and downloading the software, wherein the announcement message and the signaling message are transmitted using a fast information channel (FIC), and the software is downloaded in a main service channel (MSC) of said FIC.