Content for TR 26.854 Word version: 19.0.0

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9.1 Typical traffic characteristics summarized per use cases and formats.
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9 Typical haptics media traffic characteristics p. 35

9.1 Typical traffic characteristics summarized per use cases and formats. p. 35

In general, haptics media PCM coded bitstreams require substantially more bandwidth than parametric coded bitstreams, this is due to the capability of having silent units in a parametric bitstream.

When coding repetitive haptics media effect, a key difference between a parametric coded bitstream and a PCM coded bitstream on the traffic characteristic is the following:

In a parametric coded bitstreams, identical or similar effects can be coded and sent a single time and then referenced, rather than coding multiple time the same or similar haptics media effect.
In a PCM coded bitstream, similarly to audio and video, coding performance improves for these repeated consecutive effects but provide a much higher overhead compared to the parametric coded bitstream.

The following Table summarise the expected characteristics and average bitrates per channel applicable for the use cases of clause 5. In this Table the density represents the quantity of haptics effects over the duration of the sequence, it is not related to the intensity of the haptics effect. Three parameters impact the bandwidth requirements: the number of channels, the media format and the density.

Table 9.1-1: Summary of typical haptics media traffic characteristic

Use case	Nb of channels	Media Format	Density	Average bitrate per channel
Haptic enhanced media distribution (5.2)	1 to 32	Parametric	Light Medium High	0.25 to 0.75 kbps 0. 5 to 1.5 kbps 1 to 5 kbps
Haptic enhanced media distribution (5.2)	1 to 32	Time sampled	Light Medium High	From 6 to 64kbps depending on the density and the quality of the desired signal. 8-16 kbps for good quality at medium and high density. 32-64 kbps for very high quality at medium and high density.
Haptic enhanced communication (5.3)	1 to 4	Parametric	Light Medium	0.25 to 0.75 kbps 0.5 to 2 kbps
Immersive Entertainment (5.4)	1 to 32	Parametric	Light Medium High	0.25 to 0.75 kbps 0. 5 to 1.5 kbps 1 to 5 kbps
Immersive Entertainment (5.4)	1 to 32	Time sampled	Light Medium High	From 6 to 64kbps depending on the density and the quality of the desired signal. 8-16 kbps for good quality at medium and high density 32-64 kbps for very high quality at medium and high density
Immersive multi-modal XR and metaverse (5.5)	6 to 32	Parametric	Light Medium High	0.25 to 0.75 kbps 0. 5 to 1.5 kbps 1 to 5 kbps
Immersive multi-modal XR and metaverse (5.5)	6 to 32	Time sampled	Light Medium High	From 6 to 64kbps depending on the density and the quality of the desired signal. 8-16 kbps for good quality at medium and high density 32-64 kbps for very high quality at medium and high density (NOTE 1)
NOTE 1: TR 22.847, mentioned a bitrate of up to 200kpbs, which may be related to use cases for close-loop tactile internet, robotics etc. NOTE 2: Values in the Table may be re-evaluated if more tests are done.