Table of Contents - G.9975 (10/2025) - Technical requirements of extended reality service over in-premises networks

1	Scope
2	References
3	Definitions
	3.1	Terms defined elsewhere
	3.2	Terms defined in this Recommendation
4	Abbreviations and acronyms
5	Conventions
6	Review of extended reality (XR) technology
	6.1	Virtual reality (VR) and cloud VR
	6.2	Review of augmented reality (AR)
	6.3	Introduction to MR
	6.4	Introduction to holographic technology
7	Application scenarios of XR services
	7.1	XR to customer
	7.2	XR to business
8	Network capability and performance requirements for supporting XR in a home network
	8.1	End-to-end (E2E) requirements for supporting XR
	8.2	Requirements for supporting XR in home network
9	Support XR over G.hn
	9.1	Network terminal
	9.2	Endpoint node and relay node
10	Support XR over G.fin
Appendix I – Cloud platform of cloud VR
I	General functions and technical requirements
	I.1	General functional requirements
	I.2	General technical requirements
	I.3	Terminal capability docking requirements
Appendix II – XR deployment in home network
	II.1	In general
	II.2	XR types in home network
	II.3	Network topology
Appendix III – QoE estimation for XR service
	III.1	Introduction
	III.2	XR QoE influencing factors
	III.3	Algorithm for evaluating the QoE of VR services
	III.4	Metrics and collection method for QoE and QoS
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Bibliography