《auto optimized service convergence BS config UMTS》.pdf

3G/4G/WLAN/WMAN P L A N N I N G A N D O P T I M I Z AT I O N AUTOMATED OPTIMIZATION OF SERVICE COVERAGE AND BASE STATION ANTENNA CONFIGURATION IN UMTS NETWORKS IANA SIOMINA, PETER VÄRBRAND, AND DI YUAN, LINKÖPING UNIVERSITY ABSTRACT increasing interest in the last several years [1–3]. Network planning refers to the process of design- Deployment and maintenance of UMTS net- ing network structure and determining network works involve optimizing a number of network elements subject to various design requirements. configuration parameters in order to meet vari- Network optimization amounts to finding a net- ous service and performance requirements. In work configuration to achieve the best possible this article we address automated optimization performance. Automated network planning and of service coverage and radio base station anten- optimization allow operators to better deal with na configuration. We consider three key configu- the complexity of UMTS network design, a task ration parameters: transmit power of the that is often beyond the reach of a manual common pilot channel (CPICH), antenna tilt, approach. In addition to making the network and antenna azimuth. CPICH power greatly design process time-efficient, planning tools influences coverage. F