提供新的NGN服务需要新的KPI；QoS测量；以及基准测试方法；这些都是确保新服务质量所必需的。为了确保测试结果的可比性，需要参考基准测试方法和背景交通负荷曲线。本文件描述了潜在应用范围的关键性能指标和基准测试方法。被测运营商提供的所有接入技术都会得到考虑。

The offer of new NGN services requires new:KPIs;QoS measurement; andbenchmarking methods;which are needed to ensure the quality of new services. To ensure the comparability of test results, reference benchmarking methods and background traffic load profiles are needed.The present document describes key performance indicators and benchmarking methods for the spectrum of potential applications. All access technologies offered by the operator under test are considered.