Method and apparatus for transmitting/receiving data stream in broadcast system

摘要

Methods and apparatus are provided for transmitting and receiving a data stream in a digital video broadcast system. The data stream is segmented into a plurality of segments of the data stream. A frame is generated. The frame includes a preamble section and a data section. The data section carries the data stream, and the preamble section carries signalling information. The frame is transmitted to a receiver. In generating the frame, the data section of the frame is segmented into a plurality of frequency zones, and at least one segment of the data stream is mapped to a frequency zone of the plurality of frequency zones. The signalling information includes first segmentation information of the data stream and second segmentation information of the plurality of frequency zones.

主权项

1. A method of transmitting data comprising a data stream in a broadcast system, the method comprising the steps of:
segmenting the data stream into a plurality of segments of the data stream; generating a frame,
wherein the frame comprises a preamble section and a data section,wherein the data section carries the data stream, and the preamble section carries signaling information,wherein generating the frame comprises:
segmenting the data section of the frame into a plurality of frequency zones; andmapping at least one segment of the data stream to a frequency zone of the plurality of frequency zones, andwherein the signaling information comprises first segmentation information, second segmentation information, and third segmentation information, the first segmentation information comprising start position information of each of the plurality of segments of the data stream, length information of each of the plurality of segments of the data stream, and an indication as to whether the third segmentation information is to be transmitted, the second segmentation information comprising number information of the plurality of frequency zones and size information of each of the plurality of frequency zones, and the third segmentation information comprising information related to another data stream; and transmitting the frame to a receiver that efficiently receives the data stream and the another data stream based on the first segmentation information, the second segmentation information, and the third segmentation information.