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Extended Reality (XR) in 5G

Abstract
This Technical Report collects information on eXtended Reality (XR) in the context of 5G radio and network services. Extended reality (XR) refers to all real-and-virtual combined environments and associated human-machine interactions generated by computer technology and wearables. It includes representative forms such as augmented reality (AR), mixed reality (MR), and virtual reality (VR) and the areas interpolated among them. In this Technical Report, baseline technologies for XR type of services and applications are introduced outlining the QoE/QoS issues of XR-based services, the delivery of XR in the 5G system, and an architectural model of 5G media streaming defined in TS 26.501. In addition to the conventional service category, interactive, streaming, download, and split compute/rendering are identified as new delivery categories. A survey of 3D, XR visual and audio formats is also provided.Use cases and device types are classified, and processing and media centric architectures are introduced. This includes viewport independent and dependent streaming, as well as different distributed computing architectures for XR. Core use cases of XR include those unique to AR and MR in addition to those of VR discussed in 3GPP TR 26.918, ranging from offline sharing of 3D objects, real-time sharing, multimedia streaming, online gaming, mission critical applications, and multi-party call/conferences. Based on the details in the report, proposals for potential standardisation areas are documented.
Maturities
published
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