Abstract:

A fuzzy calculation method of KQI and KPI indexes based on user perception and present network feedback was given with the aim at the defects on current optimization problem of WCDMA network and existing business quality evaluation system. This method makes a new business classification to the
network application layer, and it makes each original independent evaluation index form an interactive coupling relationship by establishing mapping relation between different business KQI and KPI indexes. Thus an index of fuzzy calculation can objectively diagnose and evaluate the whole quality evaluation system. Calculated result and practical use indicate that this method has a preferable universality to the evaluation object, and it can fully improve the quality condition of present network data business with the equipment optimization, and optimize quality evaluation methods of existing WCDMA data service.

Key words: WCDMA, data service, quality evaluation, fuzzy relation, KPI index, KQI index