Technical data

260 Chapter 8
CDMA Over Air
Interpretation of CDMA Over Air Measurement Results
CDMA Over Air
amplifier.
You can get an indication of how often the amplifier capacity is being exceeded by
watching the Amplifier Capacity measurement. This is an instantaneous
measurement of the amplifier capacity.
Average Amplifier Capacity
If the Average Amplifier Capacity is greater than 85%, the base station power
amplifier is close to its maximum power limit. Further increase in traffic on this base
station could cause system performance problems or damage to the power amplifier.
You should notify your RF Engineering Department as soon as possible.
Utilization
The Utilization metric provides an instantaneous reading of the percentage of the
traffic channels currently being used. More meaningful information is provided by
the Peak and Average Utilization metrics gathered over a 10 to 15 minute interval.
Peak Utilization
If the Peak Utilization of this base station is greater than 65%, this is a warning that
peak traffic rates at this base station are getting very high. It is possible that calls
could be getting blocked or dropped.
Average Utilization
If the Average Utilization of this base station is greater than 45%, the base station is
carrying a great deal of traffic. It may be time to consider adding another carrier or
another base station.