Cover Page Using a Light Image - IEEE Standards Association

Cover Page Using a Light Image - IEEE Standards Association

Transmission Technologies and Requirements for Wireless VR Minseok OH, Namgi KIM Kyonggi University Compliance with IEEE Standards Policies and Procedures Subclause 5.2.1 of the IEEE-SA Standards Board Bylaws states, "While participating in IEEE standards development activities, all participants...shall act in accordance with all applicable laws (nation-based and international), the IEEE Code of Ethics, and with IEEE Standards policies and procedures." The contributor acknowledges and accepts that this contribution is subject to The IEEE Standards copyright policy as stated in the IEEE-SA Standards Board Bylaws, section 7, http://standards.ieee.org/develop/policies/bylaws/sect6-7.html#7, and the IEEE-SA Standards Board Operations Manual, section 6.1, http://standards.ieee.org/develop/policies/opman/sect6.html The IEEE Standards patent policy as stated in the IEEE-SA Standards Board Bylaws, section 6, http://standards.ieee.org/guides/bylaws/sect6-7.html#6, and the IEEE-SA Standards Board Operations Manual, section 6.3, http://standards.ieee.org/develop/policies/opman/sect6.html 2 IEEE P3079 HMD Based 3D Content Motion Sickness Reducing Technology [Dongil Seo, [email protected]] Technical Requirements for VR Date: 2017-10-31 Author(s):

Name Affiliation Phone [optional] Email [optional] Minseok OH Kyonggi University [email protected] Namgi KIM Kyonggi University [email protected] Abstract Technical capabilities of a transmission technology provides what the technology can offer when it is applied IEEE 802.11ay [1] [2], IMT Vision (IMT2020 and beyond) [3] Some standard organizations have described requirements to provide a high quality VR service to users IEEE 802.11ay [4], MPEG m39532 [5], IEEE 802.21 [6] We present the discrepancies between technical requirements for HMD and the technical capabilities for wireless HMD transmission technology candidates Insert Title here 4

Capabilities of IEEE 802.11ay Based on IEEE 802.11ay PAR [1] and Functional Requirements document [2] Maximum throughput At least 20 Gbps, as measured at the MAC data service access point (SAP) Coexistence Support backward compatibility with legacy directional multigigabit (DMG) devices (IEEE 802.11ad) operating in the same band Support coexistence with legacy devices operating in the same band Insert Title here 5 Capabilities of IEEE 802.11ay contd Range At least 10 meters in an indoor environment At least 100 meters in an outdoor environment Power Efficiency At least the same power efficiency per STA as legacy DMG devices (11ad). Note that 802.11ad does not assert any power consumption requirements. [3] Insert Title here 6 Capabilities of IEEE 802.11ay contd Video Requirements Support lightly compressed 4K and 8K UHD video for data rate, packet loss rate, delay measured at MAC SAP Parameter

Value Description Data rate 1.5 Gbps (Peak) Packet loss rate 10-8 Delay 10 ms 4K UHD 2160p (RGB): 3840x2160 pixels, 24 bits/pixels, 60 frames/s, 8 bit per color Parameter Value Description Data rate 8.0 Gbps (Peak) Packet loss rate 10-8

Delay 10 ms 8K UHD 4320p (RGB): 7680x4320 pixels, 24 bits/pixels, 60 frames/s, 8 bit per color Insert Title here 7 Capabilities of IEEE 802.11ay contd Video Requirements Support uncompressed 4K and 8K UHD video for data rate, packet loss rate, delay measured at MAC SAP Parameter Value Description Data rate 18.0 Gbps Packet loss rate 10-8 Delay 10 ms

4K UHD uncompressed 3840x2160 pixels, 30 bits/pixels, 60 frames/s, 8 bit per color. Chroma subsampling (4:4:4) Parameter Value Description Data rate 28.0 Gbps Packet loss rate 10-8 Delay 10 ms 8K UHD uncompressed 7680x4320 pixels, 24 bits/pixels, 60 frames/s, 8 bit per color. Chroma subsampling (4:2:0) Insert Title here 8

Capabilities of IEEE 802.11ay contd Fast Link Setup Provides a means of providing secure fast link setup Outdoor Support Provides a means of supporting outdoor operations Mobility Support Provides mobility operations at a pedestrian speed (e.g., 3 km/h) or body movements (i.e., neck roll, neck pitch, neck yaw) Insert Title here 9 Capabilities of IMT-2020 Based on ITU-R M.2083-0, IMT-2020 and beyond [3] (Framework and overall objectives of the future development of IMT for 2020 and beyond) Insert Title here Insert Date here 10 Capabilities of IMT-2020 contd Insert Title here Insert Date here 11 Capabilities of IMT-2020 contd Key capabilities

Descriptions Values Peak data rate Maximum achievable data rate under ideal conditions per user/device (in Gbps) 20 Gbps User experienced data rate Achievable data rate that is available ubiquitously across the coverage area to a mobile user/device (in Mbit/s or Gbit/s). 100 Mbps Latency The contribution by the radio network to the time from when the source sends a packet to when the destination receives it (in ms). 1 ms Mobility Maximum speed at which a defined QoS and seamless transfer between radio nodes which may belong to different layers and/or radio

access technologies (multi-layer/-RAT) can be achieved (in km/h). 500 km/h Insert Title here Insert Date here 12 Capabilities of IMT-2020 contd Key capabilities Descriptions Values Energy efficiency Energy efficiency has two aspects: on the network side, energy efficiency refers to the quantity of information bits transmitted to/ received from users, per unit of energy consumption of the radio access network (RAN) (in bit/Joule); on the device side, energy efficiency refers to quantity of information bits per unit of energy consumption of the communication module (in bit/Joule). 100 times more efficient than

IMT-advanced Spectrum efficiency Average data throughput per unit of spectrum resource and per cell (bit/s/Hz) 3 times more efficient than IMT-advanced Area traffic capacity Total traffic throughput served per geographic area (in Mbit/s/m2). 10 Mbits/m2 Insert Title here Insert Date here 13 Functional Requirements of 802.11ay IEEE 802.11ay usage scenarios provides key functional requirements for AR/VR [3] Requirements Notes Data rate

~20 Gbps Latency < 5 ms Jitter < 5 ms PER (packet error rate) 10-2 Distance 5 m (indoor) Video Quality 3D 4K HDMI 2.0 Range of Motion for head-worn wearable Neck Roll 0.17 (s/60deg) Neck Pitch 0.14 (s/60deg)

Neck Yaw 0.13 (s/60deg) Pedestrian speeds < 4 km/hr Device mobility Insert Title here Insert Date here 14 Quality Requirements for VR of MPEG Based on MPEG m39532 (October 2016) [4] Defines quality requirements for high quality VR services Requirement 1 (video), Resolution: 40 pixels/degree or 12K (11520 x 6480) Requirement 2 (video), Frame rate: 90 fps Requirement 3 (video), Stitching errors Rendering processes shall not introduce additional stitching errors Requirement 4 (audio), 3D Audio: Support of scene-based and/or environment audio Insert Title here 15 Quality Requirements for VR contd Requirement 5 (immersion), Motion-to-photon and motionto-audio latency: Maximum 20 ms

Requirement 6 (immersion), Foreground & parallax: Objects in the foreground shall be far enough to prevent nausea Interactive parallax with background shall be present for such objects Insert Title here 16 Handover Requirements for VR [6] Handover from a high-speed network to a low-speed network should not degrade severely the VR contents delivery service quality The result can be devastating especially when destroying the portion containing the important information about the VR contents Insert Title here Insert Date here 17 Checking Facts Discrepancies between HMD requirements and what the candidate technologies can offer HMD Requirements 802.11ay MPEG Capabilities 802. 21 802.1ay

IMT-2020 Data rate ~ 20 Gbps n/a n/a <= 20 Gbps <= 20 Gbps (userexperienced data rate <= 100 Mbps) Latency 5 ms (motion-tophoton) <= 20 ms (motion-toaudio latency as well) n/a 5 or 10 ms 1 ms Jitter < 5 ms n/a

n/a n/a n/a PER (packet error rate) 10-2 n/a n/a ~ 10-8 n/a Distance 5m n/a n/a >= 10 m indoor, >= 100 m outdoor n/a Resolution

3D 4K (2 x 3840x2160) 12K (11520 x 6480) n/a Not applicable Not applicable Insert Title here Insert Date here 18 Checking Facts contd VR Requirements 802.11ay MPEG Capabilities 802.21 802.1ay IMT-2020 Neck Roll 0.17

(s/60deg) n/a n/a n/a n/a Neck Pitch 0.14(s/ 60deg) n/a n/a n/a n/a Neck Yaw 0.13 (s/60deg) n/a n/a n/a

n/a Device mobility Pedestrian speeds < 4 km/h n/a n/a n/a 500 km/h Frame rate n/a 90 fps n/a Not applicable Not applicable Range of Motion for headworn wearable

Insert Title here Insert Date here 19 Checking Facts contd VR Requirements 802.11ay Stitching errors 3D Audio Foreground & parallax Network handover Insert Title here MPEG Capabilities 802.21 802.1ay IMT-2020 n/a Rendering processes shall not introduce

additional stitching errors n/a Not applica ble Not applicable n/a Support of scene-based and/or environment audio n/a Not applica ble Not applicable n/a Objects in the foreground shall be far enough to prevent nausea and interactive parallax with background shall be

present for such objects n/a Not applica ble Not applicable n/a Handover from a highspeed network to a lowspeed network should not degrade severely the VR contents delivery service quality n/a n/a n/a Insert Date here 20 Conclusion We need a list of new requirements to reduce HMD Based 3D content motion sickness We need to cooperate with motion-sickness experts in diverse fields such as medical, psychological, video/audio, and network areas Bring those to the related standard organization so that the requirements can be merged into their standard

Insert Title here Insert Date here 21 References [1] https://mentor.ieee.org/802.11/dcn/14/11-14-1151-08-ng60-ng60proposed-par.docx [2] https://mentor.ieee.org/802.11/dcn/15/11-15-1074-00-00ay-11ayfunctional-requirements.docx [3] Recommendation ITU-R M.2083-0, IMT Vision Framework and overall objectives of the future development of IMT for 2020 and beyond [4] https://mentor.ieee.org/802.11/dcn/15/11-15-0625-04-00ay-ieee-802-11tgay-usage-scenarios.pptx [5] ISO/IEC JTC1/SC29/WG11 MPEG 116/m39532, Oct. 2016 [6] https://mentor.ieee.org/802.21/dcn/16/21-16-0097-00-0000-mih-for-vrcontent-based-hmd.docx [7] https://mentor.ieee.org/802.11/dcn/09/11-09-0228-05-00ad-functionalrequirements.doc Insert Title here 22

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