doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide 1 Wi-Fi Alliance (WFA) VHT Study Group Usage Models Date: Authors: doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide 2 WFA VHT Study Group Consolidation of Usage Models Dec 20, 2007 Submission for the January 2008 IEEE VHT Study Group Meeting in Taipei doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide 3 IEEE Abstract This submission embodies a subset of the results of discussions taken place in the Wi-Fi Alliance (WFA) Very High Throughput Study Group. This document is a formal liaison from the WFA and has been approved by the WFA Board of Directors as such. The document contains usage model information intended to help guide the technical requirements leading to a PAR and 5 Criteria of the Task Group that will result from the IEEE VHT SG. doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide 4 Topics of the presentation Context and Introduction Categories of Usage Models Terminology VHT Environments Listing of Usage Models by Category Examples of Usage Model Definition Formats Next Steps doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide 5 Context and Introduction As a result of the July, 2007 meeting in San Francisco, the IEEE Working Group Approved a Liaison to WFA requesting Usage Models to drive requirements for the VHT SG The WFA responded by creating a Study Group chartered with producing Usage Models for VHT This group has held 4 conference calls since the November IEEE meeting in Atlanta This Usage Model document is an interim update version. The final version will be available in time for the WG meeting in Orlando in March 08 and the WFA reserves the right to significantly modify the document between now and March 08. doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide 6 Progress to Date The WFA VHT group has defined: 26 usage models 6 Categories of usage models 7 Types of Environments This update provides details on one Usage Model for each category, using an agreed upon template doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide 7 Questions & Comments from IEEE Nov meeting Will this list of usage models be prioritized? The WFA Task Group plans to include some form of prioritization in the final deliverable Need to know about if QoS requirements for factory floor are more stringent than other cases. See slide number 24 for more details. Are there any IMT Advanced use cases that take advantage of WLAN and WWAN? The WFA Task Group has received no submissions that address IMT Advanced up to this date. doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide 8 Categories of Usage Models 1.Wireless Docking 2.In Home Distribution of HDTV and other content 3.Rapid Upload and Download of large files to/from server 4.Backhaul Traffic (e.g. Meshing, Enterprise, Small Office) 5.Campus / Auditorium deployments 6.Manufacturing Floor Automation doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide 9 Terminology Usage Model A usage model is the combination of all the below things; not to be confused with a use case which is the specific set of steps to accomplish a particular task. Pre-Conditions Initial conditions before the use case begins. Application A source and/or sink of wireless data that relates to a particular type of user activity. Examples are streaming video and VoIP. Environment The type of place in which a network is deployed, such as home, outdoor, hot spot, enterprise, metropolitan area, etc. Traffic Conditions General background traffic or interference that is expected while the use case steps are occurring. Overlapping BSSs, existing video streams, and interference from cordless phones are all examples of traffic conditions. Use case A use case is task oriented. It describes the specific step by step actions performed by a user or device. One use case example is a user starting and stopping a video stream. doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide 10 VHT Environments Home On desk (short range, line of sight) Within room (medium range, mostly line of sight) Entire home (long range, could be no line of sight) Home Mesh Enterprise On desk/cube (short range, line of sight) Conference room (medium range, mostly line of sight) Dense deployment Enterprise Mesh Small Office Single BSS with unmanageable interferences with limited number of users Outdoor Outdoor mesh backhaul link Regular bridging between buildings Airplane docking Campus (Education Space, Hospital) Auditorium/lecture halls in the education space for video demos Video surveillance and conferencing Hospitals where Remote Medical Assistance for Operations is via Wireless Networks Airplane/Bus/Train/Ship Intra-large-vehicle communication. Large vehicle being airplane, bus, train or ship Factory floor 10 doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide 11 Category 1: Wireless Docking a.Desktop Storage & Display at home or enterprise b.In room projection to TV at home or projector in conference room within an enterprise c.In room Gaming video display from game machine and peer-to-peer connectivity for hand-held controllers d.Streaming from a camcorder to a display (live or stored content) e.Broadcast TV Field Pick Up f.Medical Imaging and Surgical Procedure Support in the form of uncompressed video 11 doc.: IEEE /2988r0 Submission December 20, 2007 Myles / De Vegt Wi-Fi AllianceSlide Usage Model 1a: Desktop Storage and Display at home or enterprise Traffic Conditions: In a home environment, presence of neighboring networks or additional home networks in 2.4GHz and/or 5GHz bands is likely. Multi-cubed office environment likely to have overlapping cells. Data transfers and video display should be operational simultaneously. Use Case: 1.User sits down to their desk, turns on their computer. 2.Computer wirelessly forms an association to an external hard-drive and the display with minimal user configuration. 3. User works for extended hours with visible sign the hard drive or display utilize wireless technology. 4. User stops working, then turns off computer. Pre-Conditions: User has operational WLAN network for Internet access and general data networking. The wireless network used for storage and display may or may not be part of the other operational WLAN network. Application: User can wirelessly display the output of the computer to monitor or TV using uncompressed video. Video requirements are: ~1.5Gbps, jitter is