扩展现实和3GPP演进研究报告（英）

Extended Reality (XR) enhances our lived experiences with Augmented Reality (AR), Virtual Reality (VR) and Mixed Reality (MR). It creates either fully virtual, immersive environments or blends those virtual landscapes and features with the “real” world. Its use cases are not limited to consumer applications like gaming, but also include enterprise, institutions, and manufacturing. XR will influence the way people play, work, learn, and interact with each another. VR, but particularly AR, requires significant development in multiple areas including but not limited to multi-media, artificial intelligence, computing, display systems, and communication to provide experiences that incorporate XR into our daily lives.

Low latency, high reliability, lower power consumption and high capacity are key service requirements for the success of XR. 5G New Radio (NR) developed by 3rd Generation Partnership Project (3GPP) is designed to support emerging XR uses cases that require such Key Performance Indicators (KPI). While 5G NR benefits XR, potential enhancements for 5G and balanced KPIs require further end-to-end optimizations.

This white paper describes potential use cases with service delivery requirements.
It also details how 5G can enable an end-to-end XR system, including how split computation architecture across various system components provides benefits for lower latency, higher reliability, higher rates, and less device computation. Rel-15/Rel-16 offers a decent foundation for XR but has not been specifically designed or optimized for XR support. The paper examines the evolution of 5G systems from Rel-15 and 16 that can be leveraged for XR, before describing potential enhancements recognized by 3GPP in Rel-17 through Rel-18 that are expected to optimize XR support including XR awareness, power optimizations, and capacity enhancements. The paper concludes by describing anticipated studies of localized mobile metaverse services in Rel-19.