Standardized DVB-T2 RF specifications - DigitalEurope

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14- MISO OPERATION MISO transmissions of group 1 and group 2 can either be transmitted from a single transmitter location (co-located MISO), or from two or more transmitter locations (distributed MISO). In the latter case there is a possibility that only one MISO group can be received due to obstructions in the channel. Tests for basic MISO functionality under these different conditions are shown in Table 21. Table 20 – DVB-T2 MISO Test Setup Test Parameters Value DVB-T2 mode Mode 5 with 195 FEC blocks per interleaving frame DVB-T2 signal level at tuner input -50dBm Background AWGN applied -30dBc Table 21 – DVB-T2 MISO Test Definitions Test Number Test Details Expected Result 1 Gaussian channel - MISO group 1 only PFP1 2 Gaussian channel - MISO group 2 only PFP1 3 MISO group 1 (with 10 µsec delay) + MISO group 2 (no delay) PFP1 4 MISO group 1 (with 85 µsec delay) + MISO group 2 (no delay) PFP1 5 MISO group 1 (with 10 µsec delay + MISO group 1 (no delay) PFP1 6 MISO group 1 (with 85 µsec delay + MISO group 1 (no delay) PFP1 15- MPLP / RECEIVER BUFFER MODEL OPERATION Functional tests to verify correct operation of the DVB-T2 receiver buffer model with multiple PLPs are shown in Table 22. The receiver should be able to detect the services during a channel scan, select the PLP number shown in Table 22 and display the video correctly. All the streams use 8MHz RF bandwidth. A description of how to generate the multiple PLP test signals is given in the Annex. Any transport stream with a bit rate of 3.3Mbit/s or lower can be used. Table 22 – DVB-T2 MPLP / RBM Operation Test Selected PLP for reception Test Signal Name VV702 0 VV702_plp0 1 VV702_plp1 VV705 0 VV705_plp0 VV708 0 VV708_plp0 2 VV708_plp2 VV710 0 VV710_plp0 3 VV710_plp3 >>16 of 27
REFERENCES AND ACKNOWLEDGEMENTS 1. DVB-T2 A133 Blue Book – Implementation guidelines for a second generation digital terrestrial television broadcasting system (DVB-T2) 2. DTG D-Book 7 Part A, Digital Television Group, UK 3. E-Book RF specification draft v2.16, DIGITALEUROPE >>17 of 27
Page 1 and 2: DIGITALEUROPE White paper: Standard
Page 3 and 4: All single PLP modes use HEM (High
Page 5 and 6: (C/N)0dB_table_44 = 0dB echo C/N fo
Page 7 and 8: 8- 4- Immunity to LTE signals in ot
Page 9 and 10: Table 8 - Immunity to co-channel in
Page 11 and 12: 10- 2- MFN multipath performance 10
Page 13 and 14: Test No Pulses per burst Figure 3 -
Page 15: FEC Type 64800 64800 64800 64800 64
Page 19 and 20: TS0 TS1 PLP0 PLP1 Common PLP Figure
Page 21 and 22: only only only Frames per superfram
Page 23 and 24: Modulation 256QAM 256QAM 256QAM Rat
Page 25 and 26: Design delay (samples) 939080 93579
Page 27: ABOUT DIGITALEUROPE DIGITALEUROPE r

Standardized DVB-T2 RF specifications - DigitalEurope

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