User's Manual

24 4Motion System Manual
Chapter 1 - System Description
1.5 Specifications
1.5.1 Modem & Radio
1.5.2 Sensitivity
Table 1-4: General Modem & Radio Specifications
Item Description
Operation Mode TDD
Channel Bandwidth
 5 MHz
 10 MHz
Central Frequency Resolution 0.125 MHz (actual configurable frequencies depend on the
local radio regulations and allocated spectrum)
Modulation OFDM modulation, 1024/512 FFT points;
QPSK, QAM16, QAM64
Access Method OFDMA
FEC Convolutional Turbo Coding: 1/2, 2/3, 3/4, 5/6
Table 1-5: Sensitivity, AWGN @ PER=1%
Modulation & Coding Sensitivity (dBm),
5 MHz Bandwidth
Sensitivity (dBm),
10 MHz Bandwidth
QPSK 1/2 -97.3 -94.2
QPSK 3/4 -94.9 -91.8
16QAM 1/2 -92.2 -89.1
16QAM 3/4 -88.3 -85.2
64QAM1/2 -86.8 -83.7
64QAM2/3 -83.0 -79.9
64QAM3/4 -82.2 -79.1
64QAM5/6 -81.0 -77.9