User manual

Chapter 2 - Managing a Single Device/Cell Air Interface Tx Power Parameters Page
AlvariCRAFT Device Manager 59 User Manual
2.5.4 ATPC Parameters
Maximum Tx Power
(dBm)
Applicable only for SU and RB. The maximum transmit power of the
unit when using modulation level 1 (for other modulation levels the
actual maximum transmit power may be lower due to HW limitations).
The range is according to the Defined Max Tx Power Range for
Modulation Level 1 in the Maximum Transmit Power Table.
ATPC Option The ATPC Option enables or disables the Automatic Transmit Power
Control (ATPC) algorithm.
EZ ATPC Option Applicable only for AU and BU. ATPC option specific for SU-EZ units
deployed within the sector.
Minimum SNR Level (dB) Applicable only for AU and BU. The lowest SNR at which you want
each SU/RB to be received at the AU/BU (the lower limit of the
optimal reception level range).
Available values: 4 to 60 (dB).
Delta From Minimum
SNR Level (dB)
Applicable only for AU and BU. The Delta From Minimum SNR Level
is used to define the highest SNR at which you want each SU/RB to
be received at the AU/BU (the higher limit of the optimal reception
level range):
Max. Level=Minimum SNR Level + Delta From Minimum SNR Level.
Available values: 4 to 20 (dB).
Minimum Interval
Between ATPC
Messages (sec)
Applicable only for AU and BU. The Minimum Interval Between ATPC
Messages parameter sets the minimal time between consecutive
power-up/power-down messages to a specific SU/RB. Setting a low
value for this parameter may lead to higher overhead and to an
excessive rate of power level changes at the SUs/RB. High values for
this parameter increase the time it will take the SUs/RB to reach
optimal transmit power level.
Available values: 1 to 3600 seconds.
ATPC Power Level Steps
(dB)
Applicable only for AU and BU. The ATPC Power Level Step
parameter defines the step size to be used by the SUs/RB for
incrementing/decrementing the Current Transmit Power after
receiving a power-up/power-down message. If the distance between
the value of the Current Transmit Power and the desired range is
smaller than the step size, the power-up/power-down message will
include the specific step value required for this condition.
Available values: 1-20 (dB)