March, 2002

Chuck Brabenac, Intel LabsSlide 1

doc.: IEEE 802.15-02/139r0

Submission

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Submission Title: [Intel SG3a CFA response -- Wireless Peripherals]Date Submitted: March 08, 2002Source: [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.

March, 2002

Chuck Brabenac, Intel LabsSlide 2

doc.: IEEE 802.15-02/139r0

Submission

PeripheralDevices

PersonalDevices

CEDevices

WPAN SpaceWPAN SpaceWhere peripherals fit in…Where peripherals fit in…

March, 2002

Chuck Brabenac, Intel LabsSlide 3

doc.: IEEE 802.15-02/139r0

Submission

• USB is a Peripheral bus (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

The USB ConceptThe USB Concept(Functional Overview)(Functional Overview)

USB device proximity/population fits WPAN model

March, 2002

Chuck Brabenac, Intel LabsSlide 4

doc.: IEEE 802.15-02/139r0

Submission

• 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

Wireless USB (futuristic)Wireless USB (futuristic)User benefits / motivationUser benefits / motivation

March, 2002

Chuck Brabenac, Intel LabsSlide 5

doc.: IEEE 802.15-02/139r0

Submission

• 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

Peripherals of InterestPeripherals of Interest

Many peripherals will benefit from wireless attach

March, 2002

Chuck Brabenac, Intel LabsSlide 6

doc.: IEEE 802.15-02/139r0

Submission

Today’s OfficeToday’s OfficeLaptop & port replicatorLaptop & port replicator

Office(opt)

USB2.0

Monitor2-4Gbps

Office(core)

etc…

10/100/1000Ethernet

802.11xUSB HUB

March, 2002

Chuck Brabenac, Intel LabsSlide 7

doc.: IEEE 802.15-02/139r0

Submission

Future OfficeFuture OfficeNotebook PC - native devicesNotebook PC - native devices

Office(opt)

Office(core)

etc…

802.11x

March, 2002

Chuck Brabenac, Intel LabsSlide 8

doc.: IEEE 802.15-02/139r0

Submission

Interim OfficeInterim OfficePort Replicator - mixed devicesPort Replicator - mixed devices

Office(opt)

USB2.0

Video2-4Gbps

Office(core)

etc…

10/100/1000Ethernet

Port replicatorw/ remote USB HC

802.11x

March, 2002

Chuck Brabenac, Intel LabsSlide 9

doc.: IEEE 802.15-02/139r0

Submission

• Home– Adds CE, gaming, home automation, etc

• Traveler’s Workstation– “Standard” port replicator for all laptops

• Conference room projectors

• Kiosks

Other environmentsOther environments

March, 2002

Chuck Brabenac, Intel LabsSlide 10

doc.: IEEE 802.15-02/139r0

Submission

High BW Device RequirementsHigh BW Device RequirementsPeripheral Desired BW Comments

Video conf & digital still cameras

75-150Mbps MPEG-2 quality w/o compression; roll download in seconds not minutes.

Scanners 50-100Mbps+ Faster, high resolution scan

Printers 50-100Mbps+ Higher resolutions, more colors, or elimination of line/page buffers allows lower cost

External storage Up to 240Mbps SCSI/IDE performance levels. CD/RW, DVD-RAM, HDD, flash mem.

Broadband 10-1000Mbps Cable, DSL, Ethernet, HPNA, …

Hi res monitors, projectors

63Mbps+ Upper limit (to ~4Gbps) a function of tolerable compression

March, 2002

Chuck Brabenac, Intel LabsSlide 11

doc.: IEEE 802.15-02/139r0

Submission

• 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

Location Awareness Location Awareness PossibilitiesPossibilities

March, 2002

Chuck Brabenac, Intel LabsSlide 12

doc.: IEEE 802.15-02/139r0

Submission

• 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.

Adapting to WirelessAdapting to Wireless

March, 2002

Chuck Brabenac, Intel LabsSlide 13

doc.: IEEE 802.15-02/139r0

Submission

• 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

Adaptation tasks aheadAdaptation tasks ahead

March, 2002

Chuck Brabenac, Intel LabsSlide 14

doc.: IEEE 802.15-02/139r0

Submission

Bandwidth DistributionBandwidth Distribution

802.11a AP

Note: 802.11acoexistence

required!

March, 2002

Chuck Brabenac, Intel LabsSlide 15

doc.: IEEE 802.15-02/139r0

Submission

• 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

ConclusionsConclusions