DL Qual. Upper Threshold

Parameter Name

DL Qual. Upper Threshold

Description

When the power control step is calculated based on the signal quality, the upper threshold and the lower threshold of the quality zone are set. When the signal quality exceeds the upper threshold or is below the lower threshold, power control is performed. This parameter specifies the upper threshold of the downlink quality for power control.

The mapping between the BER and the quality level is as follows:

Level 0: BER smaller than 0.2%

Level 1: BER ranges from 0.2% to 0.4%

Level 2: BER ranges from 0.4% to 0.8%

Level 3: BER ranges from 0.8% to 1.6%

Level 4: BER ranges from 1.6% to 3.2%

Level 5: BER ranges from 3.2% to 6.4%

Level 6: BER ranges from 6.4% to 12.8%

Level 7: BER greater than 12.8%

GUI Value Range

[0,7]

Default Value

0

Unit

Levels

Step

-

Modification Rules

None

Configuration Policy

If this parameter is set to a too great value, the quality is poor without power control. Thus, the conversation quality is degraded. If this parameter is set to a too small value, the quality is good without power control. Thus, the battery life is reduced.

Recommended Value

0

Parameter Relationship

When power control is performed on the BTS according to the signal quality, the quality of the BTS transmit signal has a DL Qual. Upper Threshold and a DL Qual. Lower Threshold. When the signal quality level is smaller than the value of this parameter, adjust the power of the BTS by one level downward. In the current algorithm, if the receive level of the MS minus the MAX Down Adj. PC Value by Qual. is smaller than the DL RX_LEV Lower Threshold, the transmit power is not adjusted.

BSC Feature

Power control

Parameter Class

Parameters About Radio Resources

Caution

None


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