PERFORMANCE ANALYSIS OF ANTENNA SECTORISATION IN CELL BREATHING

摘要

In this paper we will discuss the concepts of "Cell Breathing" in 3rd Generation systems environment such as a Universal Mobile Telecommunications System (UMTS). A comparison of the system performance will be made using results obtained from the simulation of a 3 and 6 sectored antenna respectively. In Wideband Code Division Multiple Access (WCDMA) technology, all users share the same common physical resource, frequency band in 5 MHz slices. In Global System for Mobile communications (GSM) the capacity calculation is a relatively straight forward procedure, but in the case of WCDMA the radio interface is handled differently and the system capacity is limited by various factors. In the following report simulations are carried out to investigate the relationship in UMTS capacity and coverage. Cells with varying coverage profiles considerably complicate network planning and management. In this paper the simulation results show the reduced impact of cell breathing with the use of micro cells and multi sectored antennas.