Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [ Intel SG3a CFA resp

1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Intel SG3a CFA response -- Wireless Peripherals] Date Submitted: March 08, 2002 Source: [Chuck Brabenac] Company: [Intel] Address: [2111 NE 25th Ave, Hillsboro, OR 97124] Voice: [503-264-8575], FAX: [503-264-3483], E-Mail: [chuck.brabenac@intel.com] Re: [Doc. 02-027 IEEE P802.15.SG3a Call For Applications] Abstract:[Provides potential future USB wireless peripheral bus requirements for Alternative PHY in IEEE P802.15.SG3a Study Group] Purpose: [Use as one of the sets of criteria for establishing the Alternative PHY standard for IEEE 802.15.SG3a] Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that these viewgraphs becomes the property of IEEE and may be made publicly available by P802.15. Chuck Brabenac, Intel Labs

2. WPAN Space Where peripherals fit in… CE Devices Personal Devices Peripheral Devices Chuck Brabenac, Intel Labs

3. The USB Concept (Functional Overview) • USB is a Peripheralbus (PC, etc.) • Simple device interface (smart host) • Facilities for “register” ops, interrupts, wake, etc. • Enables easy install & config. • PnP descriptors, many well-known device classes • Data xfer rates / types supported: • 1.5, 12 and 480Mbps • Bulk and isochronous pipes • Bus length <= 5m (can ext. to 25m w/ hubs) • Addressing for <= 127 devices per host controller USB device proximity/population fits WPAN model Chuck Brabenac, Intel Labs

4. Wireless USB (futuristic) User benefits / motivation • A potential future USB Implementer’s Forum proposal • Reduces the rat’s nest of cables • Aesthetics • Ease of install • Safety • Ease of movement during operation • Mice, keyboards, joysticks, etc. • CE devices and other gadgetry • Frequent connect/disconnect • Notebook PC, mobile devices, etc. • Difficult or expensive to cable • Avoid hole drilling Chuck Brabenac, Intel Labs

5. Peripherals of Interest • Mass storage • CD-RW, DVD, hard drive, etc. • Imaging/graphics • Scanner, printer, webcam, monitor, projector • Input • Keyboard, mouse, joystick • CE gear & portable gadgets • Digicam, PDA, speakers, etc. • Remote wireless port replicator (new) • To make wired/legacy connections Many peripherals will benefit from wireless attach Chuck Brabenac, Intel Labs

6. Today’s Office Laptop & port replicator 10/100/1000 Ethernet USB2.0 802.11x Office (opt) USB HUB Monitor 2-4Gbps Office (core) etc… Chuck Brabenac, Intel Labs

7. Future Office Notebook PC - native devices 802.11x Office (opt) Office (core) etc… Chuck Brabenac, Intel Labs

8. Interim Office Port Replicator - mixed devices 10/100/1000 Ethernet USB2.0 802.11x Office (opt) Port replicator w/ remote USB HC Video 2-4Gbps Office (core) etc… Chuck Brabenac, Intel Labs

9. Other environments • Home • Adds CE, gaming, home automation, etc • Traveler’s Workstation • “Standard” port replicator for all laptops • Conference room projectors • Kiosks Chuck Brabenac, Intel Labs

10. High BW Device Requirements Chuck Brabenac, Intel Labs

11. Location Awareness Possibilities • CE device implicitly docked in close proximity • Digicam: Transfer JPEGs and show pictures on PC • Feedback to user whether device is close enough to run application well • Badge location – wakes up your office Chuck Brabenac, Intel Labs

12. Adapting to Wireless • USB LL protocol unsuitable for wireless • Token-based host driven transactions • Assumes <= 10-12 BER • Some electrical signaling primitives • Wireless adaptation layer used instead • Would be defined by USB-IF (if accepted) • 802.15.3 is a potential underpinning • USB device/app framework runs above it • Standard device classes, PnP facilities, etc. Chuck Brabenac, Intel Labs

13. Adaptation tasks ahead • Intermix of fast & slow devices • Cost complexity tradeoffs? • Augmenting USB framework with security/mgmt for wireless access • Power management • Wake-up signaling from devices • Choosing best access methods for bandwidth distribution • There will be many device clusters in close proximity Chuck Brabenac, Intel Labs

14. 802.11a AP Bandwidth Distribution Note: 802.11a coexistence required! Chuck Brabenac, Intel Labs

15. Conclusions • USB device proximity/population fits WPAN model • Many peripherals will benefit from wireless attachment • 802.15.SG3a PHY should support such a future potential application Chuck Brabenac, Intel Labs