User Manual

Chapter 1 - System Description Specifications
4Motion 27 System Manual
1.5 Specifications
1.5.1 Modem & Radio
1.5.2 Sensitivity (per channel)*
* For second order receive diversity configurations sensitivity is improved by 3 dB.
For fourth order receive diversity configurations sensitivity is improved by 6 dB.
Table 1-4: General Modem & Radio Specifications
Item Description
Operation Mode TDD
Channel Bandwidth
 5 MHz
 7 MHz (not applicable for the 2.x GHz band)
 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: Per Channel Sensitivity, AWGN @ PER=1%
Modulation
& Coding
Sensitivity (dBm),
5 MHz Bandwidth
Sensitivity (dBm),
7 MHz Bandwidth
Sensitivity (dBm),
10 MHz Bandwidth
QPSK 1/2 -97.3 -95.8 -94.2
QPSK 3/4 -94.9 -93.4 -91.8
16QAM 1/2 -92.2 -90.7 -89.1
16QAM 3/4 -88.3 -86.8 -85.2
64QAM1/2 -86.8 -85.3 -83.7
64QAM2/3 -83.0 -81.5 -79.9
64QAM3/4 -82.2 -80.7 -79.1
64QAM5/6 -81.0 -79.5 -77.9