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6-52 Confidential - For internal use 99-137719-D
6.8.7 ATC activation
The parameter .atc.activation is used (by the integrator) to signal if an interferer is
present or not. How this information is used by the RM is described in section 9.1.5.1 on
page 9-9. The parameter is per default deactivated which indicates that no ATC
interferers are present.
6.8.8 Sky-scan (Check power)
The table below shows the parameters for channel power estimation for sky-scan
operation (see section 8.5.5.9 on page 8-44).
The number of averages (N
avg
) determines the accuracy and processing delay
according to the following equation:
where t
tuning
is equal to 6 ms, t
fixed
is equal to ~1 ms, t
measure
is equal to 7.25 ms and
N
freq
specifies the number channels where the power is estimated.
Note
Note that external gain variations over temperature must be handled by
replacing the compensation parameters (or the nominal power) according to
the drift of the temperature.
Parameter name
protocols.bgan.functionality
External access Type / Domain
Values
[min;max]
Comment
.atc.activation r/w
t4 §4
int / ram [0..1] 0=off
(default),
1=on
Table 6-67: ATC activation
Parameter name
protocols.bgan.functionality
External
access
Type /
Domain
Values
[min;max]
Comment
.skyscan.check.pwr.averages r/w t4 §4 int / ram [1..30] Number of averages.
(default = 30)
.skyscan.check.pwr.narrow_bw r/w t4 §4 int / ram [0..3] 0=10 kHz,1=14 kHz
(default), 2=18 kHz,
3=22 kHz
.skyscan.check.pwr.wide_bw r/w t4 §4 int / ram [0..3] 0=30 kHz,1=36 kHz
(default), 2=42 kHz,
3=48 kHz
Table 6-68: Sky-scan (Check power)
t
estimation
t
fixed
N
freq
t
tuning
N
avg
t
measure
++=