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Grundig Digital Radio User Manual

Page 40

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DIGITAL RADIO GUIDE

TERRESTRIAL TRANSMISSION SYSTEMS - ISDB-TSB

40

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Transmission capacities

The transmission capacities of the single-segment and the triple-segment are
shown in Table 4.3 and 4.4 respectively.

Table 4.3: Information bit rates for

the single-segment transmission (Segment BW=6/14MHz)

Information Rates (kbps)

Carrier Modulation

Convolutional Code

Guard
Interval
Ratio 1/4

Guard
Interval
Ratio 1/8

Guard
Interval
Ratio 1/16

Guard
Interval
Ratio 1/32

1/2

280.85

312.06

330.42

340.43

DQPSK

2/3

374.47

416.08

440.56

453.91

3/4

421.28

468.09

495.63

510.65

QPSK

5/6

468.09

520.10

550.70

567.39

7/8

491.50

546.11

578.23

595.76

1/2

561.71

624.13

660.84

680.87

2/3

748.95

832.17

881.12

907.82

16QAM

3/4

842.57

936.19

991.26

1021.30

5/6

936.19

1040.21

1101.40

1134.78

7/8

983.00

1092.22

1156.47

1191.52

1/2

842.57

936.19

991.26

1021.30

2/3

1123.43

1248.26

1321.68

1361.74

64QAM

3/4

1263.86

1404.29

1486.90

1531.95

5/6

1404.29

1560.32

1652.11

1702.17

7/8

1474.50

1638.34

1734.71

1787.28

Table 4.4: Information bit rates for the triple-segment transmission*

5

Information Rates (kbps)

Carrier Modulation

Convolutional Code

Guard
Interval Ratio
1/4

Guard
Interval Ratio
1/8

Guard
Interval Ratio
1/16

Guard
Interval Ratio
1/32

1/2

0.842

0.936

0.991

1.021

DQPSK

2/3

1.123

1.248

1.321

1.361

3/4

1.263

1.404

1.486

1.531

QPSK

5/6

1.404

1.560

1.652

1.702

7/8

1.474

1.638

1.734

1.787

1/2

1.685

1.872

1.982

2.042

2/3

2.246

2.496

2.643

2.723

16QAM

3/4

2.527

2.808

2.973

3.063

5/6

2.808

3.120

3.304

3.404

7/8

2.949

3.276

3.469

3.574

1/2

2.527

2.808

2.973

3.063

2/3

3.370

3.744

3.965

4.085

64QAM

3/4

3.791

4.212

4.460

4.595

5/6

4.212

4.680

4.956

5.106

7/8

4.423

4.915

5.204

5.361

5 In the case of the triple-segment transmission, information rate can be calculated by the combination of segment

information rates.