METHOD AND APPARATUS FOR PROCESSING NON-REAL-TIME BROADCAST SERVICE AND CONTENT TRANSMITTED BY BROADCAST SIGNAL

摘要

The present invention relates to a method and an apparatus for delivering an NRT service or NRT content through a broadcast signal. According to one embodiment of the present invention, the method for processing the NRT broadcast service comprises the steps of: receiving a broadcast signal including an IP multicast stream transmitted through a particular Internet protocol (IP) address; parsing a service map table (SMT) for signaling a non-real-time (NRT) service from the IP multicast stream included in the received broadcast signal; parsing a language information descriptor indicative of language information of an element associated with the NRT service at the parsed service map table; parsing, in the parsed language information descriptor, a language type field indicative of the type of language used in the NRT service and an element type field indicative of the type of element associated with the NRT service; and identifying that the language indicated by the language type field is used in the element associated with the NRT service indicated by the parsed element type field, wherein said element type field identifies one of elements which are associated with the NRT service and include a caption element of the NRT service and a text element of the NRT service.