| Table of Contents - F.740.9 (03/2025) - Requirements for enabling virtual reality services based on Internet protocol television architecture1	Scope2	References
 3	Definitions
 3.1	Terms defined elsewhere
 3.2	Terms defined in this Recommendation
 4	Abbreviations and acronyms
 5	Conventions
 6	Overview
 6.1	Relationship between services
 6.2	Relationship between ITU-T Recommendations
 7	Enabling VR service base on IPTV functional architecture
 7.1	VR service characteristics
 7.2	Implementing VR services with [ITU-T Y.1910]
 7.3	Implementing VR services with [ITU-T H.705.1]
 8	Service requirements
 8.1	General aspects
 8.2	QoS and performance aspects
 8.3	Security aspects including service and content protection
 8.4	Network related aspects
 8.5	End systems and interoperability aspects
 8.6	Middleware, application and content aspects
 9	Functional architecture
 9.1	[ITU-T Y.1910] based architecture
 9.2	[ITU-T H.705.1] based architecture
 10	VR service procedure based on IPTV architecture
 10.1	VR content and metadata preparation
 10.2	VR application initiation
 10.3	VR application client initiation
 11	Security considerations
 Appendix I – VR service based on IPTV architecture and use cases
 I.1	VR service characteristics
 I.2	End-to-end service architecture for VR service
 I.3	User cases of VR service based on IPTV architecture
 Bibliography
 
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