Cell optimizing method based active antenna system and digital signal processing apparatus and wireless communication system for performing the same

摘要

A cell optimization method based on an active antenna system and a digital signal processing device and a wireless communication system performing the method are disclosed. A plurality of active antenna systems of the system are located in each of the plurality of cells and include a passive antenna, an active antenna capable of antenna tilting and beam forming for vertical cell division, and a radio signal processing device for processing radio signals. The digital signal processing apparatus recognizes a plurality of traffic for each cell through a signal received from the plurality of antenna systems, and when a traffic of some of the plurality of cells increases, a cell in which traffic increases is transmitted to a plurality of cells A frequency merging service is provided through a base band using the passive antenna and the radio signal processor and an additional band using the active antenna for a plurality of cells vertically divided by vertically dividing.