terrestrial DMB (T-DMB)
DigitalMultimedia Broadcast(DMB) is a broadcast service standardized by the European Telecommunications Standards Institute( ETSI) for the transmission of mobile TV via TV cell phones and portable media players. The terrestrial variant of Digital Multimedia Broadcast is T-DMB, which is a further development of Digital Audio Broadcast( DAB). For video transmission, T-DMB uses H.264/ AVC, for audio it uses aacPlus( AAC+) and for interactive content Binary Format for Scene Description( BIFS).
With T-DMB, data rates of up to 1.5 Mbit/s are achieved, depending on error correction. T-DMB, which is transmitted via Digital Audio Broadcast, uses the L-band at 1.5 GHz as its transmission frequency band. Internationally, WARC has reserved the frequency range from 1.452 GHz to 1.492 GHz. T-DMB uses OFDM- DQPSK up to 2k as the modulation method.
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T-DMB is being further developed in South Korea and is also being used there and in various regions of China. Other mobile digital TV services( MDTV) include Broadcast Multicast Service( BCMCS), DVB-H, Integrated Service Digital Broadcasting( ISDB-T), Multimedia Broadcast Multicast Service( MBMS), ATSC-M/H and MediaFLO.