TRANSMITTING AND RECEIVING METHOD FOR URGENT SERVICE IN DIGITAL BROADCASTING SYSTEM AND APPARATUS OF TRANSMITTING AND RECEIVING FOR THE SAME

摘要

A method and an apparatus for transmitting and receiving an urgent service when performing a sleep mode in a digital broadcasting system are provided to give the urgent service without increasing complexity of a transceiver of a digital broadcasting system. An input member(302) receives plural input signals such as audio/video service signals, a data service signal, and multiplexing construction information. A digital broadcasting signal producing member(303) produces a digital broadcasting signal by using the various signals through operations such as encoding, multiplexing, and modulating. A control member(301) controls timing of the whole blocks. A TII signal producing member(305) produces a TII signal to be inserted into one synchronization channel at every two frames of the digital broadcasting signal. An urgent service signal producing member(306) produces an urgent service signal for notifying the generation of the urgent service. An insertion signal control member(304) controls insertion of the urgent service signal to the synchronization channel of the frame having no TII signal. A TII and urgent service signal insertion member(307) selectively inserts one of the TII and urgent service signals into the digital broadcasting signal. A transmission member(308) transmits the broadcasting signal.