Method of processing non-real time service and broadcast receiver

An apparatus of transmitting a non-real time service, the apparatus comprising:

• a processor configured to generate first signaling data containing service-level attributes for a non-real time service, second signaling data including a service fragment and a content fragment of a service guide for the non-real time service, and IP datagrams containing one or more non-real time services, the first signaling data and the second signaling data;
• and
• a transmitter configured to transmit a broadcast signal including IP datagrams,
• wherein:
• the non-real time service is delivered in advance of its use and stored in a receiving device and associated with one or more content items,
• the content item is composed of one or more files being delivered via a File Delivery over Unidirectional Transport (FLUTE) file delivery session,
• the service fragment includes an element indicating that the service fragment contains information regarding the identified non-real time service, and
• the content fragment includes a linkage element linking from a content item to one or more files, the linkage element having an identifier of the content item, the identifier of the content item being used to map one or more files to the content item with a content identifier included in a FLUTE File Description Table (FDT) instance for the non-real time service.