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Submission doc.: IEEE 802.11-16/0418r1 March 2016 SangHyun Chang, et al. (Samsung)Slide 1 Follow-up on the USR Wireless Docking Opportunity Date: 2016/03/17 Authors:
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Submission doc.: IEEE 802.11-16/0418r1 March 2016 SamsungSlide 2 Recap: the USR Wireless Docking Use Case We presented the Ultra-Short Range (USR) wireless docking usage model as a candidate mobile phone application, during the last F2F. –11-16-0084-00-00ay-The Ultra-Short Range Opportunity This use case can serve various every-day applications which include remote desktop, cloud PC, gigabit docking with wireless charging service, and interactive game docking station. Today, we will compare the requirements of this use case (USR wireless docking) with the USR Communications (Usage Model #1) and Office Docking (Usage Model #9) and highlight the difference.
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Submission doc.: IEEE 802.11-16/0418r1 March 2016 SamsungSlide 3 Recap: USR Wireless Docking Requirements Interactive Game Docking Station –Latency: ≤ 10ms (E2E) –Data rate: ≥ 1Gbps (low latency codec w/ compression rate 1/3~1/4) Remote Desktop/Cloud PC –Latency: ≤ 50ms (E2E) –Data rate: ≥ 1Gbps (visually lossless for text/line) –Traffic: bi-directional (Mobile Phone ↔ Peripheral) Gigabit Docking w/ Wireless Charging Service –Alignment-free placement on the pad Low Power Consumption –≤ 200mW for peak data rate –≤ 0.5mW for discovery phase Form Factor –Close to today’s NFC Range –≤ 0.1 m Wireless Cloud Office Wireless Docking Pad (Monitor/Keyboard/Mouse/LAN)
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Submission doc.: IEEE 802.11-16/0418r1 March 2016 SamsungSlide 4 Requirements Comparison Usage Model #1 (USR Comm.) USR Wireless Docking Usage Model #9 (Office Docking) Network TopologyP2Pprimarily P2PP2P/P2MP Range≤ 0.1 m ≤ 3 m Power Consumption≤ 400 mW≤ 200 mWNot Available TrafficUnidirectionalBi-directional Latency< 100 ms< 10 ms
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Submission doc.: IEEE 802.11-16/0418r1 Potential Simplifications for USR Docking (1/2) March 2016 SamsungSlide 5 Beamforming support –For such ultra-short range communications, beam forming may not even be required. Simpler PHY Preamble –For USR communications, the current 802.11ay preamble under discussion may be an overkill –We can explore a “new” PHY mode with a simpler preamble Simplified Modulation Scheme –To lower the power consumption, we can explore the use of simpler (primitive) modulation schemes, such as OOK. Explore Simplifications for Channel Estimation/Equalization for USR –May be able to simplify the signaling deployed for channel estimation
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Submission doc.: IEEE 802.11-16/0418r1 Potential Simplifications for USR Docking (2/2) March 2016 SamsungSlide 6 Simplified Attach Procedure –For such an ultra short range communications mode where BF may be avoided, we may not need to go through the Sector Level Sweep SLS phase for the initial attachment Non-EDCA mode for USR? –With primarily a P2P support, we can explore whether EDCA mode is really needed to support USR communications. … Leading to a simplified overall architecture
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Submission doc.: IEEE 802.11-16/0418r1 March 2016 SamsungSlide 7 Straw Poll Do you agree to add USR wireless docking to the 11ay usage model document? –Y/N/A
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Submission doc.: IEEE 802.11-16/0418r1 March 2016 SamsungSlide 8 Appendix (Part of 15/0625r3)
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Submission Usage Model 1: Ultra Short Range (USR) Communications Traffic Conditions: Only a single portable/mobile device can access to a fixed device at a time with simply best-effort rates. There is typically minimum interference from other mm-wave links due to ultra short link distance. Traffic is unidirectional. Use Case: 1.User places a portable/mobile device in a definite position relative to a fixed device. 2.Secure pairing between the portable/device device and the fixed device is completed without user configuration. 3.The pre-selected application is launched and the pre-selected task (e.g., download video clip) is started. 4.The application exits when task is complete. Pre-Conditions: User has WLAN connectivity between a portable/mobile device (e.g., tablet, smart phone) and a fixed device (e.g., tollgate, kiosk). Application: Users can download mass data (e.g. video/audio clip, e-magazine, picture library etc.) from a fixed device. 100 jpeg (picture) files of 5MB takes 0.6 second over a single hop 10Gbps link. Jitter is not critical. The key metric is the user’s time spent to do a transfer. Less than 1 second is acceptable. 1-5 seconds may be acceptable. More than 5 seconds may not be acceptable. Environment: Environments can be variable, e.g., crowded public space such as train stations, airports, shopping mall, office. Link distance can typically be up to 10 cm. Typically transmissions are Line of Sight. All devices will typically be stationary during usage.
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Submission Usage Model 1: USR Communications Rapid content transfer between a portable /mobile device (e.g., tablet, smart phone) and a fixed device or between two portable/mobile devices within a ultra short separation Assumption: 1:1 Fast link setup: < 100msec Transaction time: <1sec Ultra short link distance: <10cm Very low power consumption for portable/mobile device: < 400mW Target data rate: 10 Gbps @ 70% MAC-App efficiency Size11ay Device11ad Device 4K UHD movie60 GB1.1 min @ 10Gbps11.4 min@1Gbps HD movie5 GB5.7 sec @ 10Gbps57.1 sec @ 1Gbps SD movie1.5 GB1.7 sec @ 10Gbps17.1 sec @ 1Gbps Picture library1 GB1.1 sec @ 10Gbps11.4 sec @ 1Gbps 4K movie trailer1.2 GB1.4 sec @ 10Gbps13.7 sec @ 1Gbps HD movie trailer100 MB0.1 sec @ 10Gbps1.1 sec @ 1Gbps E-magazine250 MB0.3 sec @ 10Gbps2.8 sec @ 1Gbps Video/audio clip, magazine, newspaper, etc. Train Station Kiosk Movie, video/audio clip, magazine, newspaper, etc. Movie, video/audio clip, picture library, etc.
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Sept, 2015 doc.: IEEE 802.11-2015/0625r3 Submission Usage Model 9: Office docking Pre-Conditions: Office docking enables a wireless docking experience for office and home. Mobile device (Notebook, tablet, smartphone, small form factor) may communicate wirelessly with multiple peripheral devices - monitors, camcorders, web cameras, hard drives, printers, Internet AP/Router, etc. and/or another mobile device, Scenarios include a single device in a home scenario as well as in a dense office environment with multiple mobile devices where each mobile device has its own or shared dock/peripherals, or multiple mobile devices sharing a dock. A single wireless link that connects a mobile device with its dock, where the dock is wire-connected to multiple other devices, as well as multiple wireless links to connect the mobile with many devices should be supported. Application: -Productivity applications -Support of two monitors of 8K resolution -Wireless support of USB devices with different traffic characteristics: isochronous, human interface and others -Gigabit Ethernet -Mass storage devices -3D webcams -Dynamic composition -Connecting mobile to 2-5 peripheral devices -Mobile device should be able to sustain full working day w/o recharging battery -Connecting multiple mobile source devices to dock Environment: Typical office scenarios - open space, cubicles, meeting room, and standalone home office usage. Range between mobile and dock and peripherals will typically be < 3m. Dense environment with multiple docking may or may not be wall isolated. Most of the devices are semi- static that may be moved intentionally or unintentionally. Traffic Conditions: ‒ Typically one to one and one to many links, many to one links (multiple source devices to one dock with shared peripheral devices) ‒ Multiple simultaneous high performance links, some with low latency requirements, others with best-effort rates. ‒ Some flows are unidirectional and others are bidirectional. - Multiple uncoordinated ad hoc networks Use Case: 1.Mobile device is wirelessly connected to a docking station, and/or wirelessly connected to multiple wireless peripherals directly 2.Mobile device may be wirelessly connected to other mobile devices separately or simultaneously with (1) 3.Mobile device may be simultaneously connected to wireless LAN 4.Devices may be simultaneously connected to Bluetooth and other radio 5. Dense office environment with multiple mobile devices where each one may be docked simultaneously with different docks 6.Some data flows have significant latency, throughput and QoS requirements (monitors under productivity applications, Dynamic composition, HID) 7.Multiple mobile devices (for example a PC and a smartphone) wirelessly connected to a docking station and sharing the peripherals that are connected to dock.
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Sept, 2015 doc.: IEEE 802.11-2015/0625r3 Submission Usage Model 9 : Office docking Per device wireless linkAverage throughput (Gbps) Peak throughput (Gbps) MAC/PHY Latency for productivity applications (ms) Monitor 4K lightly compressed 0.31.510 Monitor 5K lightly compressed 0.52.710 Monitor 8K lightly compressed 1.68.010 USB HID0.1 10 USB total8.0 NA Ethernet2.0 NA Mobile to mobile8.0 NA Combined wireless linkMax Throughput (Gbps) Two Monitors 8K+USB+Ethernet13.2
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Sept, 2015 doc.: IEEE 802.11-2015/0625r3 Submission Usage Model 9: Office docking exmples Open space example 1 Open space example 2 Office docking with multiple wireless links Doc k Office docking with single wireless link
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Sept, 2015 doc.: IEEE 802.11-2015/0625r3 Submission Summary of Key metrics UC # Indoor (I)/ Outdoor (O) Environment Throughpu t TopologyLatencySecurity Availability Applications and Characteristics LOS/ NLOS 1 I <10cm ~10Gbps P2P<100ms -Static,D2D, -Streaming/Downloading 2I<5m>28GbpsP2P<5ms-Uncompressed 8K UHD Streaming 3 I<5m ~20Gbps P2P<100ms -Low Mobility, D2D -3D UHD streaming 4I <10m ~20GbpsP2P/P2MP<100msC/I99.99%-Indoor Backhaul with multi-hop* 5I <100m >20GbpsP2P/P2MP <100ms C/I-Multicast -Streaming/Downloading - Dense Hotspot 6I/O <100m >20GbpsP2P/P2MP<100ms C/I99.99%-Multi-band -Multi-RAT operation -Hotspot 7O<200m~20GbpsP2P/P2MPC/I99.99%-Fronthauling 8O <1km with single hop <150m per hop with multiple hops ~2GbpsP2P/P2MP<35ms C/I99.99%-Small Cell Backhauling - Single hop or multiple hop 9I <3m~20GbpsP2P/P2MP<10ms *: Multi-hop will build up on the scope of the DMG Relay defined in IEEE 802.11ad
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