Setting Amplifier Capacity Metrics

Setting Amplifier Capacity Metrics
The Amplifier Capacity measurement is an estimate of the amount of power amplifier capacity that is being used, expressed in percent of maximum. Amplifier capacity properties must be properly set to make valid amplifier capacity measurements. Amplifier capacity metrics are amplifier capacity, peak amplifier capacity, and average amplifier capacity.
A W-CDMA or W-CDMA (with HSDPA) base station is typically set up with a specified amount of power allocated to the CPICH (Common Pilot Channel). The specified power settings of the PCCPCH (Primary Common Control Physical Channel) are defined relative to the CPICH. Occasionally, the PCCPCH power setting will also be specified in absolute power units (watts or dBm). Given the CPICH and PCCPCH setup values and the maximum power output of the amplifier, the percentage amplifier capacity setup parameters can be determined.
Setting Amplifier Capacity Properties:

Step
Notes

1
[Setup]

2
[Amp Cap Settings]

3
On [Amp Cap] select On.

4
[Max PA Pwr]

5
[W]

6
Enter the maximum power amplifier power in watts, using the numeric keypad.
A base station power amplifier is specified to have a maximum power limit.

7
[CPICH Pwr]
CPICH refers to Common Pilot Channel.

8
Enter the CPICH power in watts, using the numeric keypad.
The CPICH power is the total power in the dominant pilot signal, expressed in watts.

9
[W]

10
[Delta PCCPCH...]
PCCPCH refers to Primary Common Control Physical Channel.

11
Enter the Delta PCCPCH Pwr in dB, using the numeric keypad.
The Delta PCCPCH is the expected amplitude difference between the PCCPCH channel and CPICH channel, expressed in dB.

12
[dB]


	Step	Notes
1	[Setup]
2	[Amp Cap Settings]
3	On [Amp Cap] select On.
4	[Max PA Pwr]
5	[W]
6	Enter the maximum power amplifier power in watts, using the numeric keypad.	A base station power amplifier is specified to have a maximum power limit.
7	[CPICH Pwr]	CPICH refers to Common Pilot Channel.
8	Enter the CPICH power in watts, using the numeric keypad.	The CPICH power is the total power in the dominant pilot signal, expressed in watts.
9	[W]
10	[Delta PCCPCH...]	PCCPCH refers to Primary Common Control Physical Channel.
11	Enter the Delta PCCPCH Pwr in dB, using the numeric keypad.	The Delta PCCPCH is the expected amplitude difference between the PCCPCH channel and CPICH channel, expressed in dB.
12	[dB]