Summary

Recommendation ITU-T G.1034 presents a novel high-level end-to-end key performance indicator (KPI) for telephony intended to be used in rail and other route-based public transport scenarios where movement is a constituting factor. The methodologies and metrics described in this Recommendation will allow generation of a holistic view of the end-user experience and solid predictions for a wide range of use case parameters based on measurement data, while at the same reducing resources and efforts needed to collect this measurement data. It will extend the existing range of quality of service (QoS) metrics by leveraging the particular properties of public transport scenarios that are defined by repeatability and reproducibility. While the described methodology focuses on telephony, it is easily possible to extend it to cover other types of service tests. This Recommendation will benefit all stakeholders in public transport: rail passengers who will encounter a high QoE, railway operators who will be enabled to provide competitive and attractive services and last but not least the network operators, who will be able to optimize their efforts and resources.