AMR DL Qual. Lower Threshold

AMR DL Qual. Lower Threshold

When the power control step is calculated based on the signal quality, the upper threshold and the lower threshold of the stable state 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 lower 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%

[0,7]

3

Levels

-

None

If this parameter is set to a higher value, the quality is poor without power control. Thus, the conversation quality is degraded; conversely, the quality is good without power control. Thus, the battery life is reduced.

3

When the power control for BTS is performed according to the signal quality, compare the transmitting signal quality of BTS with the downlink signal quality threshold. When the signal quality rank is higher than this value, adjust the power by one level upward for the BTS. In current algorithm, if the total of receive level and the MAX Up Adj. PC Value by Qual.are more than the DL Qual Lower Threshold, the transmitting power is not adjusted.

Power control, AMR

Parameters About Radio Resources

None