Table 1 Transmission parameters of LTE-based 5G terrestrial broadcast and advanced ISDB-T

Modulation

Cyclic prefix-OFDM

Channel bandwidth

5 MHz

6 MHz

Occupied bandwidth

4.5 MHz

Normal mode: 5.83 MHz

Compatible mode: 5.57 MHz

Number

of segments

25 resource blocks

Normal mode: 35

Compatible mode: 33 + adjusting bands

Bandwidth of segments

180 kHz

167 kHz

FFT size

41,472

8,192

16,384

32,768

Number of carriers

12,150

7,561

15,121

30,241

Carrier spacing

370.37 Hz

771.60 Hz

385.80 Hz

192.90 Hz

Scattered pilot ratio

1/6, 1/12

1/3, 1/6, 1/12, 1/24, 1/48

Carrier modulation

QPSK,16QAM, 64QAM, 256QAM (uniform)

QPSK, 16QAM, 64QAM, 256QAM, 1024QAM, 4096QAM (uniform, non-uniform)

Number of OFDM symbols per frame

13

224

112

56

Effective OFDM symbol length

2700 µs

1296 µs

2592 µs

5184 µs

Guard interval ratio

1/9

1/4, 1/8, 800/8,192

1/4, 1/8, 1/16, 800/16,384

1/8, 1/16, 1/32, 800/32,768

Inner code

Turbo code

LDPC code

Outer code

N/A

BCH code

System

SISO

SISO, MIMO, MISO