Hi Dirk, Thanks for the suggested additional dimension for the use cases. The use case referenced is an interesting one indeed (user interactivity and personalization added on top of https://www.kcl.ac.uk/news/the-worlds-first-5g-low-latency-3-way-distributed-orchestra-at-kcl)! Could not find a link however to haptic communication aspect. Maybe can provide a haptic experience that is in sync with music for users who are disabled and can't perceive audio and/or video?
By dynamicity do you mean how different user profiles and user interactions are taken into consideration, in multi-user scenarios? And how the resulting user-specific information (of the same experience) being transferred to users (audio-video-haptic) ? If yes, certainly it is another dimension of the use cases, e.g., Entertainment (gaming), Training (training simulations). For example, in scenarios where virtual simulation environments used for training, where multiple users act upon the same virtual objects, the information received by individual 'trainee users' may differ due to 1) user preferences (e.g., with haptic feedback vs without) 2) individual user's perception (e.g.., audio, video haptic) of objects and actions/events within the virtual environment (e.g., based on viewpoint, distance to objects/events, and properties of virtual objects [different users may receive different haptic feedback depending on the type of actions performed], experiences may differ per each user) . Moreover, the trainer (human or virtual) may choose to provide corresponding feedback (using audio-visual or audio-visual-haptic mediums) to an individual or a group/subset of trainees in real-time. Such an experience must be provided while meeting stringent latency requirements imposed by haptic. We may add the aforementioned aspects related to dynamicity into the use cases in the next version of the draft. Best regards, Chathura -----Original Message----- From: Dirk Trossen <[email protected]> Sent: 25 June 2021 15:21 To: Chathura Sarathchandra <[email protected]>; [email protected] Cc: Mona Ghassemian <[email protected]> Subject: RE: New Version Notification for draft-sarathchandra-tactile-internet-00.txt Hi Chathura, Interesting draft, indeed, to start a discussion here on this list. Adrian's responded with a piece I'd also recommended, namely the SARAH list, where this contribution may well contribute to possible discussions on addressing and routing aspects related to the Tactile Internet. Apart from that, I wonder about the degree of dynamicity that you foresee in your scenarios (of Section 4)? The use case draft in the COIN RG (https://datatracker.ietf.org/doc/draft-irtf-coinrg-use-cases/) outlines an entertainment use case with a personalized and interactive nature, where dynamic relations, e.g., between (parts of the) performers and (parts of the) audience are foreseen. The tactile notion is not emphasized here, leading to higher acceptable latencies maybe (although when mixing distributed music, you are still down at few ms latency). But it's the dynamic relations that I wanted to point out, which pose additional requirements. This may also be the case for industrial use cases, BTW. Maybe something to consider as a possible dimension? Best, Dirk -----Original Message----- From: Int-area [mailto:[email protected]] On Behalf Of Chathura Sarathchandra Sent: 25 June 2021 15:49 To: [email protected] Cc: Mona Ghassemian <[email protected]> Subject: Re: [Int-area] New Version Notification for draft-sarathchandra-tactile-internet-00.txt Dear all, Please find below our new draft submission on Tactile Internet Service Requirements. This draft introduces tactile internet use cases and service requirements potentially to be used as input for further discussions and/or to be directly addressed by IETF. Comments and feedback are warmly welcome! Best regards, Chathura -----Original Message----- From: [email protected] <[email protected]> Sent: 25 June 2021 14:28 To: Chathura Sarathchandra <[email protected]>; Mona Ghassemian <[email protected]>; Morteza Kheirkhah <[email protected]> Subject: New Version Notification for draft-sarathchandra-tactile-internet-00.txt A new version of I-D, draft-sarathchandra-tactile-internet-00.txt has been successfully submitted by Chathura Sarathchandra and posted to the IETF repository. Name: draft-sarathchandra-tactile-internet Revision: 00 Title: Tactile Internet Service Requirements Document date: 2021-06-25 Group: Individual Submission Pages: 11 URL: https://www.ietf.org/archive/id/draft-sarathchandra-tactile-internet-00.txt Status: https://datatracker.ietf.org/doc/draft-sarathchandra-tactile-internet/ Htmlized: https://datatracker.ietf.org/doc/html/draft-sarathchandra-tactile-internet Abstract: The Tactile Internet refers to a new communication and networking paradigm, which can provide low-latency, reliable and secure transmission for real-time information such as control, touch, and sensing/actuation in emerging tactile internet applications like teleoperation, immersive virtual reality,and haptics communications. The main goal of this document is: 1) to briefly introduce tactile internet background and typical applications; 2) to identify potential service requirements that can be addressed at the IETF or researched at the IRTF. 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