scope:

The present document provides a study on the QoE metrics relevant to VR service. The study focuses on:

- Defining a device reference model for VR QoE measurement points.

- Studying key performance indicators that may impact the experience of VR service.

- Identifying the existing QoE parameters and metrics defined in SA4 standards such as TS 26.247, TS 26.114 which are relevant to Virtual Reality user experience;

- Identifying and defining new QoE parameters and metrics relevant to Virtual Reality user experience, taking into consideration the use cases listed in TR 26.918, and any sources that show the relevance of new metrics, e.g. scientific literature, specifications/solutions from other standard organizations.

- Analysing potential improvements to the existing QoE reporting so as to better accommodate VR services.

- Providing recommendations to future standards work in SA4 on the QoE parameters and metrics and, as necessary, coordinate with other 3GPP groups and external SDOs, e.g. MPEG, ITU-T.