5 Transmission mechanisms for broadcasting of multimedia and data applications for mobile reception Several types of transmission mechanisms have been described for this purpose; ISDB-T, ISDB-T multimedia broadcasting, Digital System E, TDMB, DVB-H, DVB-SH, FLO, RAVIS and DVBT2 Lite are possible candidates. There are several methods for so called using either MPEG-2 TS, IP-Packets, or “encapsulation” other generic packet data methodologies. Table 1 lists an overview of currently known broadcasting transmission mechanisms for mobile terminals. The technical characteristics shown are subject to change and are by no means exhaustive; they are provided for comparison only. TABLE 1 Summary of mobile digital broadcasting transport mechanisms RF channel (MUX) size Receiver power Standard or Transport Modulation reduction From technical Specification stream methodology view point (MHz) ISDB-T QPSK/DQPSK or MPEG-2 TS 1/14 of One-segment (Multimedia System C 16/64-QAM a) 6 MHz reception of Recommendation OFDM b) 7 MHz ITU-R BT.1833) c) 8 MHz ISDB-T multimedia QPSK/DQPSK or MPEG-2 TS 1/14 × n of segment broadcasting 16/64-QAM a) 6 MHz reception (Multimedia System F OFDM b) 7 MHz of Recommendation c) 8 MHz ITU-R BT.1833) n 1(1) ≥ Digital System E QPSK MPEG-2 TS 25 Optimized (Multimedia System E CDM receptions of of Recommendation CDM codes ITU-R BT.1833) T-DMB DQPSK COFDM MPEG-2 TS 1.5 Originally (Multimedia System A optimized of Recommendation bandwidth ITU-R BT.1833) TABLE 1 (end) RF channel (MUX) size Receiver power Standard or Transport Modulation reduction From technical Specification stream methodology view point (MHz) AT-DMB DQPSK, MPEG-2 TS 1.5 Originally (Multimedia System A BPSK over optimized DQPSK, bandwidth
5 Transmission mechanisms for broadcasting of multimedia and data applications for mobile reception Several types of transmission mechanisms have been described for this purpose; ISDB-T, ISDB-T multimedia broadcasting, Digital System E, TDMB, DVB-H, DVB-SH, FLO, RAVIS and DVBT2 Lite are possible candidates. There are several methods for so called “encapsulation” using either MPEG-2 TS, IP-Packets, or other generic packet data methodologies. Table 1 lists an overview of currently known broadcasting transmission mechanisms for mobile terminals. The technical characteristics shown are subject to change and are by no means exhaustive; they are provided for comparison only. TABLE 1 Summary of mobile digital broadcasting transport mechanisms Standard or Specification Modulation Transport stream RF channel (MUX) size From technical view point (MHz) Receiver power reduction methodology ISDB-T (Multimedia System C of Recommendation ITU-R BT.1833) QPSK/DQPSK or 16/64-QAM OFDM MPEG-2 TS 1/14 of a) 6 MHz b) 7 MHz c) 8 MHz One-segment reception ISDB-T multimedia broadcasting (Multimedia System F of Recommendation ITU-R BT.1833) QPSK/DQPSK or 16/64-QAM OFDM MPEG-2 TS 1/14 × n of a) 6 MHz b) 7 MHz c) 8 MHz n ≥ 1(1) segment reception Digital System E (Multimedia System E of Recommendation ITU-R BT.1833) QPSK CDM MPEG-2 TS 25 Optimized receptions of CDM codes T-DMB (Multimedia System A of Recommendation ITU-R BT.1833) DQPSK COFDM MPEG-2 TS 1.5 Originally optimized bandwidth TABLE 1 (end) Standard or Specification Modulation Transport stream RF channel (MUX) size From technical view point (MHz) Receiver power reduction methodology AT-DMB (Multimedia System A DQPSK, BPSK over DQPSK, MPEG-2 TS 1.5 Originally optimized bandwidth
R-REP-BT.2049-7-2016-MSW-E.docx