WCDMA KPI framework definition methods and applications

With the development of the commercial applications of WCDMA in the whole world, the comprehensive and scientific measurement and assessment of network performance for WCDMA have become one of the urgent requirements for operators. KPI is always a significant assessment standard for network performance from the 2nd wireless communication. As the KPI/KQI assessment architecture is proposed by TMF and the End-to-End QoS/QoE has become one of the research focuses, KPI is therefore rapidly becoming a indispensable factor in the assessment architecture of WCDMA. Due to the lack of definition framework and methods for KPI, it is difficult for the existing network performance KPI to cover all importance aspects of network and to make fair evaluation of network performance. In response to these needs, this paper proposes a definition methodology composed of the definition criteria, the assessment framework, and the weight division principles for WCDMA KPI. Besides, it also illustrates the measurement and assessment processes of network performance KPI of WCDMA by the practical application experience of Chinese operators.