NGP\00329 Rev. C 23-06-2006 Evolution Series - XPAND 31
5.3. Interference sensitivity
5.3.1. Co-channel interference sensitivity
The limits of the co-channel interference sensitivity are shown in Table 5-12, referred to point C. The
table shows maximum and typical C/I values for 1 dB and 3 dB increase of the 10
-6
BER threshold.
System
Maximum C/I at BER = 10-6
@ RSL Degradation [dB]
Typical C/I at BER = 10-6
@ RSL Degradation [dB]
Capacity and Channel BW
1 dB degr. 3 dB degr. 3 dB degr. 3 dB degr.
4xE1@7MHz (QPSK) 23 19 18 14
8xE1@7MHz (16State) 30 26.5 24 20
8xE1@14MHz (QPSK) 23 19 18 14
16xE1@14MHz (16State) 30 26.5 24 20
16xE1@28MHz (QPSK) 23 19 18 14
20xE1@14MHz (16State) 30 26.5 25 21
40xE1@28MHz (16State) 30 26.5 24 20
50xE1@28MHz (32State) 30 26.5 25 21
75xE1@28MHz (128State) 31.5 27.5 31 27
Table 5-12 Co-Channel Interference Sensitivity
5.3.2. Adjacent channel interference sensitivity
The limits of the adjacent channel interference sensitivity are as given in
Table 5-13 Adjacent Channel
Interference Sensitivity
, referred to point C. The tables show maximum C/I values for 1 dB and 3 dB increase of the 10
-6
BER
threshold.
System
Maximum C/I at BER = 10-6
@ RSL Degradation [dB]
Typical C/I at BER = 10-6
@ RSL Degradation [dB]
Capacity and Channel BW
1 dB degr. 3 dB degr. 1 dB degr. 3 dB degr.
4xE1@7MHz (QPSK) 0 -4 TBD TBD
8xE1@7MHz (16State) -1 -5 TBD
TBD
8xE1@14MHz (QPSK) 0 -4 TBD
TBD
16xE1@14MHz (16State) -1 -5 TBD
TBD
16xE1@28MHz (QPSK) 0 -4 TBD
TBD
20xE1@14MHz (16State) -2 -5 TBD
TBD
40xE1@28MHz (16State) -3.5 -7.5 TBD
TBD
50xE1@28MHz (32State) -6 -9.5 TBD
TBD
75xE1@28MHz (128State) 3 -1 TBD
TBD
Table 5-13 Adjacent Channel Interference Sensitivity
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