March 2002 doc IEEE 802 15 -02 139

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 Project: IEEE P 802. 15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Intel SG 3 a CFA response -- Wireless Peripherals] Date Submitted: March 08, 2002 Source: [Chuck Brabenac] Company: [Intel] Address: [2111 NE 25 th Ave, Hillsboro, OR 97124] Voice: [503 -264 -8575], FAX: [503 -264 -3483], E-Mail: [chuck. brabenac@intel. com] Re: [Doc. 02 -027 IEEE P 802. 15. SG 3 a Call For Applications] Abstract: [Provides potential future USB wireless peripheral bus requirements for Alternative PHY in IEEE P 802. 15. SG 3 a Study Group] Purpose: [Use as one of the sets of criteria for establishing the Alternative PHY standard for IEEE 802. 15. SG 3 a] Notice: This document has been prepared to assist the IEEE P 802. 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 P 802. 15. Submission 1 Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 WPAN Space Where peripherals fit in… CE Devices Personal Devices Peripheral Devices Submission 2 Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 The USB Concept (Functional Overview) • USB is a Peripheral bus (PC, etc. ) – Simple device interface (smart host) – Facilities for “register” ops, interrupts, wake, etc. • Enables easy install & config. – Pn. P descriptors, many well-known device classes • Data xfer rates / types supported: – 1. 5, 12 and 480 Mbps – Bulk and isochronous pipes • Bus length <= 5 m (can ext. to 25 m w/ hubs) – Addressing for <= 127 devices per host controller USB device proximity/population fits WPAN model Submission 3 Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 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 Submission 4 Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 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 Submission 5 Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 Today’s Office Laptop & port replicator 10/1000 Ethernet USB 2. 0 802. 11 x Office (opt) USB HUB Monitor 2 -4 Gbps Office (core) etc Submission 6 … Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 Future Office Notebook PC - native devices 802. 11 x Office (opt) Office (core) etc Submission 7 … Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 Interim Office Port Replicator - mixed devices 10/1000 Ethernet USB 2. 0 802. 11 x Office (opt) Port replicator w/ remote USB HC Video 2 -4 Gbps Office (core) etc Submission 8 … Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 Other environments • Home – Adds CE, gaming, home automation, etc • Traveler’s Workstation – “Standard” port replicator for all laptops • Conference room projectors • Kiosks Submission 9 Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 High BW Device Requirements Peripheral Desired BW Comments Video conf & digital still 75 -150 Mbps cameras MPEG-2 quality w/o compression; roll download in seconds not minutes. Scanners 50 -100 Mbps+ Faster, high resolution scan Printers 50 -100 Mbps+ Higher resolutions, more colors, or elimination of line/page buffers allows lower cost External storage Up to 240 Mbps SCSI/IDE performance levels. CD/ RW, DVD-RAM, HDD, flash mem. Broadband 10 -1000 Mbps Cable, DSL, Ethernet, HPNA, … Hi res monitors, projectors 63 Mbps+ Upper limit (to ~4 Gbps) a function of tolerable compression Submission 10 Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 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 Submission 11 Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 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, Pn. P facilities, etc. Submission 12 Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 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 Submission 13 Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 Bandwidth Distribution 802. 11 a AP Note: 802. 11 a coexistence required! Submission 14 Chuck Brabenac, Intel Labs

March, 2002 doc. : IEEE 802. 15 -02/139 r 0 Conclusions • USB device proximity/population fits WPAN model • Many peripherals will benefit from wireless attachment • 802. 15. SG 3 a PHY should support such a future potential application Submission 15 Chuck Brabenac, Intel Labs