Evolutionary algorithms for geographic load balancing using a distributed antenna system

Abstract

Methods and apparatuses are presented for balancing non-uniformly distributed network traffic in a wireless communications system having a plurality of digital remote units (DRUs). In some embodiments, a method comprises partitioning the plurality of DRUs into a plurality of DRU sectors, and dynamically repartitioning the plurality of DRU sectors depending on traffic conditions in at least one of the DRU sectors, such that the repartitioning satisfies at least one of a soft capacity constraint or a hard capacity constraint. The dynamic repartitioning may be based on at least one optimization algorithm.

What is claimed is: 
     
         1 . A method for balancing non-uniformly distributed network traffic in a wireless communications system having a plurality of digital remote units (DRUs), the method comprising:
 a) providing a digital access unit (DAU) associated with a plurality of sectors of a base station;   b) providing a plurality of DRUs associated with the DAU;   c) partitioning the plurality of DRUs into a plurality of DRU sectors;   d) measuring a number of blocked calls associated with the plurality of DRU sectors;   e) determining that the number of blocked calls is greater than a predetermined threshold; and   f) iterating using at least elements (c) through (e).