samples. The poor performing areas are identified and the reason for poor coverage is analysed. For example, the coverage problem might be due to a missing site or a physical obstacle preventing the signal attenuation. The overall Ec/10 is analysed to find out areas with potential quality problems. This is done in a similar manner to coverage analysis, using an analysis tool to find out problem locations. The Ec/ I problems might be due to dominance problems or coverage problems. In the case of coverage problems the RSCP also gives an indication of the problem. However, in the case of a dominance problem the RSCP is good on area problems. The cells providing coverage on an area should be analysed and some of them removed, in order to improve the quality of the remaining ones. Recommendations to improve RF performance will be based primarily on physical changes to antenna tilts, azimuths, types and heights. In addition to RF performance in RF tuning phase the neighbour lists can also be verified. Also the potential scrambling code conflicts and site integration related problems e.g. swapped feeders should be identified. The first measurement results could also be used for initial check for service performance. Neighbour List Analysis Missing neighbours will be identified through comparison of the neighbour list generated based on scanner measurements and the actual ADJS, ADJI and ADJG objects uploaded from the RNC database for those sites. The RNC data upload should be performed on the same day as the drive test. Voice Call Performance Optimisation Call performance gives an indication about areas that have bad performance, e.g. areas with call setup problems and dropped calls clearly have something to investigate. The field measurements analysis is usually started after looking at (statistical) call performance data (counters) to evaluate how much the analysed area had problems. The next step is to identify where these problems occurred: Low Ec/10. The signal quality falls below -15 dBm and the call drops. Low RSC