Content for  TR 22.856  Word version:  19.2.0

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5.22  Use case of Mobile Metaverse Live Concertp. 69

5.22.1  Descriptionp. 69

Mobile metaverse services allow people to enjoy an online digital concert with their avatars beyond the limitation of time and space. In order to provide immersive interactive location agnostic service experience to mobile metaverse service customers, large amount of computing resouces is needed to perform real-time processing for audio, video, and interactive data, etc. The thing to realise here is that different customers will use terminals e.g. XR glasess with different brands and different processing capabilities, some of the glasses will not have enough computing resources to perform the real-time rendering. Through split rendering, most of the computing work task can offload to the network, the high speed and low latency transmission provided by 5G system can cooperate with the edge cloud side for real-time rendering, and combine with the local optimized rendering of the XR terminal side to provide the immersive and unbounded XR experience. In addition to this, similar to the real world, people are more likely to watch a concert together with their friends, further, the mobile metaverse live concert service is also provides private boxs for group of avatars to enjoy the concert privately, and different types of social authority can be provided in the private box on demand.

5.22.2  Pre-conditionsp. 69

  1. Alex, Bob and Carey are good friends live in different cities, they agree to watch the mobile metaverse live concert together.
  2. Alex, Bob and Carey are equipment with XR glasses and tactile, the equipment can capture their voice, facial expression, pose information to generate avatars and interact with the whole live concert.
  3. Enough computing resources can be provided to the mobile metaverse live concert service and the 5G network is capable of providing sufficiently high throughput and low latency network transmission.

5.22.3  Service Flowsp. 69

  1. Alex, Bob and Carey's subscribe to the mobile metaverse live concert services and order a "private box" which can only be used by themselves. Alex, Bob and Carey will be represented at the virtual concert event by their avatars.
  2. Due to extensive computing resource requirement for image rendering in the interactive live concert, and Alex and Carey's glasses are not strong enough to perform this processing, the UEs negotiate with the mobile network operator to offload the rendering service to the edge cloud. Carey's glasses can only receive the rendered image and show it in the field of view. Bob's glass is more advanced, which can render the image itself.
  3. The concert begins and the three friends access the mobile metaverse service. The live singer is presented to the audience as her own avatar. During the show, the singer and all the audience will be represented by their own avatars in the virtual space. Alex, Bob and Carey can adjust their own visual perspective, such as panoramic view, close range or even backstage. At the same time, they can also view the singer's voice and movement, and immerse themselves in the concert.
  4. At the same time, extra VIP services can be provided in the "private box", e.g. to chat with other audience members in the private box without being overheard. The virtual singer may also enter the "private box" to hold a personal meeting with her selected fans.

5.22.4  Post-conditionsp. 70

The consumers in the mobile metaverse live concert service enjoy a great immersive experience and socialize with their friends.
The 5G system is capable of supporting the communication required by the immersive mobile metaverse live concert service. Some extra edge computing services are also provided to some consumers whose equipment has insufficient computing capacity.

5.22.5  Existing feature partly or fully covering use case functionalityp. 70

The functional and performance requirements for AR/VR services have been captured in clause 7.6 of TS 22.261.

5.22.6  Potential New Requirements needed to support the use casep. 70

[PR 5.22.6-1]
Subject to operator policy, the 5G system shall be able to support avatar-based multiparty communication in mobile metaverse service.

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