Fading Simulation
SMIQ
1125.5555.03
2.78
E-9
2.9.4.2
Menu FINE DELAY
With the FINE DELAY mode a better time delay resolution of the paths is obtained. Two paths are
possible for each option (SMIQB14 / SMIQB15). The system bandwidth of these paths is limited to 4.6
MHz, which is sufficient for 3GPP with 3.84 Msymb/s. Time resolution is 1 ns.
Fig. 2-41
Menu FINE DELAY
STATE
Activating/deactivating fine delay simulation.
IEC/IEEE-bus command
:SOUR:FSIM:FDEL:STAT ON | OFF
IGNORE RF
CHANGES < 5%
When switched on, frequency variations below 5% are ignored. Frequency
hopping is thus faster than 3 ms. IEC/IEEE-bus command
:SOUR:FSIM:IGN:RFCH ON
STANDARD
Opens a window for selecting a defined setting of fading paths.
Selection:
3GPP_BS__4.1.0_CASE1:
SPEED:
3 km/h
Pfad 1:
DELAY
25 ns
PATH LOSS
0 dB
Pfad 2:
DELAY
1001 ns
PATH LOSS
10 dB
3GPP_BS_4.1.0_CASE2:
SPEED:
3km/h
Pfad 1:
DELAY
25 ns
PATH LOSS
0 dB
Pfad 2:
DELAY
1001 ns
PATH LOSS
0 dB
Pfad 3:
DELAY
20025 ns
PATH LOSS
0 dB
3GPP_BS_4.1.0_CASE3:
SPEED:
120km/h
Pfad 1:
DELAY
25 ns
PATH LOSS
0 dB
Pfad 2:
DELAY
285 ns
PATH LOSS
3 dB
Pfad 3:
DELAY
546 ns
PATH LOSS
6 dB
Pfad 4:
DELAY
806 ns
PATH LOSS
9 dB
3GPP_3.3.1_CASE5:
SPEED:
50 km/h
Path 1:
DELAY
25 ns
PATH LOSS 0 dB
Path 2:
DELAY
1001 ns
PATH LOSS 10 dB
