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¿µ¹®Ç¥Áظí Terrestrial Digital Multimedia Broadcasting (T-DMB): Emergency Wake-up Alert System
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¿µ¹®³»¿ë¿ä¾à This standard defines the hierarchical message structure of the T-DMB emergency wake-up alert broadcast service and the specification of the T-DMB emergency wake-up alert transmission system.

The hierarchical message structure of the T-DMB emergency wake-up alert broadcast service defined in this standard is composed of the following four layers;

?? Emergency alert broadcast information layer
?? Emergency alert broadcast information service layer
?? Fragmentation layer and service packet layer
?? Transmission frame layer

The T-DMB emergency wake-up alert broadcast system defined in this standard has the following three functional blocks;

?? Transmission data generator
?? Auxiliary data channel synthesizer
?? RF transmitter
Among these, the transmission data generator has the following six functional sub-blocks:

?? Wake-up alert signal generation and spreading sub-block
?? Channel coding and interleaving sub-block
?? Modulation sub-block
?? Signal spreading sub-block
?? Transmission frame multiplexing sub-block
?? Pulse shaping sub-block
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