Extended Reality (XR) has been one of the ambitious research topics under development for several decades. Today it is becoming mature enough to appear in the mass market and it is laying the foundation for the upcoming Metaverse revolution. The replacement of smartphones with smaller wearable devices and headset mounted devices enables numerous novel use cases in consumer, engineering, industrial, and healthcare areas. XR includes different types of realities such as Augmented Reality, Virtual Reality, Mixed Reality and Cloud Gaming.

The successful adoption of XR requires support from the underlying communication system, since XR introduces a unique set of features and challenging requirements in terms of capacity and latency that do not perfectly fit into the existing classification of fifth-generation (5G) applications and services. While current wireless technologies already support XR applications and will continue evolving to improve user experience, ubiquitous XR experience remains a challenging goal for future mobile networks. In particular, bidirectional and high data rate communications, power saving needs of user devices, seamless/ubiquitous access in mobile scenarios, interactivity of traffic flows, and data freshness as well as value of information for full immersive user experience require an in-depth revision of current communication technologies.

XRNR aims to provide a forum that brings together authors from the research and academic communities, standardization bodies, and institutional entities to meet and exchange ideas on recent research, challenges and future directions for communication and cloud systems to support eXtended Reality in multiple application scenarios and use cases.

The technical topics of interest to the workshop include, but are not limited to:

• Resource allocation algorithms for XR
• Advanced power saving schemes for XR devices
• XR and zero interruption mobility management mechanisms
• Traffic analysis and QoE prediction for XR services
• Data collection, analysis, and learning for coordination and management of XR applications
• Modeling, optimization, and performance evaluation of XR services over wireless networks
• Age of Information and semantic-aware communications
• Experimental contribution on XR over cellular systems