Self-optimizing distributed antenna system using soft frequency reuse

Abstract

A method of determining a carrier power in a communications system including a processor includes a) setting a power differential between a reference carrier and one or more carriers, b) measuring a number of satisfied users at the power differential, and c) measuring a capacity for the satisfied users at the power differential. The method also includes d) increasing the power differential by a predetermined amount and e) determining, using the processor, that the number of satisfied users at the increased power differential is greater than or equal to the number of satisfied users at the power differential. The method further includes f) repeating a)-c) and g) setting the carrier power at an iterated power level.

What is claimed is: 
     
         1 . A method comprising:
 setting a transmission power level for a Digital remote Unit (DRU);   determining a key performance indicator related to a quality of service at the transmission power level;   iteratively adjusting the transmission power level for the DRU to increase the key performance indicator related to the quality of service; and   setting the transmission power level for the DRU at an iterated power level.