March 2001

Tom Siep, Texas InstrumentsSlide 1

doc.: IEEE 802.15-01/185r0

Submission

IEEE 802.15.1 WPAN™ “Standardization” of Bluetooth™

Tom SiepMember Group Technical StaffTexas Instruments

Bluetooth is a trademark Telefonaktiebolaget L M Ericsson, SwedenWPAN is a trademark of the IEEE

March 2001

Tom Siep, Texas InstrumentsSlide 2

doc.: IEEE 802.15-01/185r0

Submission

Overview

• 802.15.1 Status

• Creating the Draft Standard– Architecture of WPANs– WPANs vs. WLANs– 802.15.1 LLC SAPs– SDL

• Future IEEE/Bluetooth collaboration

March 2001

Tom Siep, Texas InstrumentsSlide 3

doc.: IEEE 802.15-01/185r0

Submission

Project 802.15.1 Status• Presented to Working Group and then IEEE 802

Executive Committee September00• Delayed for Bluetooth V1.1 publication • Confirmation Letter Ballot started 9Feb01, ended

11Mar01: PASSED, 46/4/1 or 92% affirmation• Comment Resolution at March01 IEEE meeting in

Hilton Head, SC.: all comments processed• Next step: editing; 10 day confirmation ballot ~2April01• LAN/MAN 802.15 Sponsor Ballot(s) during the Summer

or Fall• RevCom will submit Final Draft Std for approval upon

successful completion of the Sponsor Ballot

March 2001

Tom Siep, Texas InstrumentsSlide 4

doc.: IEEE 802.15-01/185r0

Submission

The Process of Creating an IEEE Standard

ProjectAuthorization

MakeChanges toObtain WG

Appoval

WGLetterBallot

WGConfirmationLetter Ballot

WGReviewsReturned

Ballots

TechnicalChanges?

SponsorBallot

ResolvableNegatives?

Proceed toStandards Board

Approval

Yes

Yes

No No

Yes

No

PerpareDraft for

Circulation

EstablishCriteria forStandard

NewNegativeVotes?

You are here

March 2001

Tom Siep, Texas InstrumentsSlide 5

doc.: IEEE 802.15-01/185r0

Submission

Bluetooth Specification (SIG version)

RF

Baseband

AudioLink Manager

L2CAP

Data

Other TCS RFCOMM SDP

Applications

Con

trol

March 2001

Tom Siep, Texas InstrumentsSlide 6

doc.: IEEE 802.15-01/185r0

Submission

Bluetooth Specification (IEEE version)

March 2001

Tom Siep, Texas InstrumentsSlide 7

doc.: IEEE 802.15-01/185r0

Submission

IEEE Project 802 Standards

Software

Internet Protocol (IP)

x.400 and X.500 Email

Transport Control Protocol (TCP)

Hardware

March 2001

Tom Siep, Texas InstrumentsSlide 8

doc.: IEEE 802.15-01/185r0

Submission

S tationM gm t

More Detail of IEEE P802 Structure

LLC

M A C

P H Y

1 ) L o g ic a l L in k C o n tro l

2 ) M e d iu m A c c e s s C o n tro l

3 ) P H Y s ic a l L a y e r

M A C M gm t

P H Y M gm t

4 ) M e d iu m A c c e s sC o n tro lM a n a g e m e n t

5 ) P H Y s ic a l L a y e r M a n a g e m e n t

SAP

SAP SAP

SA

PS

AP

SAP

Service Access Points

March 2001

Tom Siep, Texas InstrumentsSlide 9

doc.: IEEE 802.15-01/185r0

Submission

How Does That Relate to Bluetooth?

March 2001

Tom Siep, Texas InstrumentsSlide 10

doc.: IEEE 802.15-01/185r0

Submission

Constructing the Draft802.15.1

Overview1

References2

Definitions3

Acronyms4

GeneralDescription

5

WPANArchitecture

6

PHYsical Layer7

Medium Access Control8, 9, 10, 11

ServiceAccessPoints

11

PICSProforma

A

MACFormal

Definition

B

Bibliography

H

Radio

7

Baseband8

LinkManagerProtocol

9

L2CAP10

HCI11

GenericAccessProfile

C

Timers

D

OptionalPagingScheme

E

Test Mode

F

Config.MSCs

G

March 2001

Tom Siep, Texas InstrumentsSlide 11

doc.: IEEE 802.15-01/185r0

Submission

WPAN Architecture • Wireless personal area networks are different than

WLANs in several functional areas:– Control of the media

– Range

– Power

– Number of participants

– Ownership of devices

– Nature of devices

– Lifetime of network

– Relative cost

• These differences are a result of the topological differences between the two types

March 2001

Tom Siep, Texas InstrumentsSlide 12

doc.: IEEE 802.15-01/185r0

Submission

Topologies: Stars, Rings, Trees

WLANs

WPANs Token Ring

March 2001

Tom Siep, Texas InstrumentsSlide 13

doc.: IEEE 802.15-01/185r0

Submission

WLANs verses WPANs(WARNING:gross simplifications)

• WLAN is outwardly looking– Interacts with wired infrastructure (LANs)– Network timeframe hours to days– Portable devices– “Wires are expensive”

• WPAN is inwardly looking– Interacts with personal objects– Network timeframe seconds to hours– Highly mobile devices– “Wires get in the way”

March 2001

Tom Siep, Texas InstrumentsSlide 14

doc.: IEEE 802.15-01/185r0

Submission

WPAN frames

March 2001

Tom Siep, Texas InstrumentsSlide 15

doc.: IEEE 802.15-01/185r0

Submission

WLAN Frames

March 2001

Tom Siep, Texas InstrumentsSlide 16

doc.: IEEE 802.15-01/185r0

Submission

802.15.1 SAPs (1 of 4)

• MA-UNITDATA request (source_address,

destination_address,routing_information,data,priority,service_class)

March 2001

Tom Siep, Texas InstrumentsSlide 17

doc.: IEEE 802.15-01/185r0

Submission

802.15.1 SAPs (2 of 4)

• MA-UNITDATA indication (source_address,destination_address,routing_information,data,reception_status,priority,service_class)

March 2001

Tom Siep, Texas InstrumentsSlide 18

doc.: IEEE 802.15-01/185r0

Submission

802.15.1 SAPs (3 of 4)

• MA-UNITDATA-STATUS indication (source_address,

destination_address,transmission_status,provided_priority,provided_service_class)

March 2001

Tom Siep, Texas InstrumentsSlide 19

doc.: IEEE 802.15-01/185r0

Submission

802.15.1 SAPs (4 of 4)

L2CAP Link Manager

LMP

Baseband

RF

SAP Interface

L2C

AP

SA

P

SC

O S

AP

Air Interface

HC

I SA

P

PHY

MAC

LLC

SA

P

HostController

Asynchronous Connection-Less (ACL) LinkSCO Link

March 2001

Tom Siep, Texas InstrumentsSlide 20

doc.: IEEE 802.15-01/185r0

Submission

802.15.1 SDL

• Derived a picture of what the structure of the BT spec is in IEEE terms.

• Helped to uncover holes in existing spec

• Enables bench testing and validating of components

• Provides a common language between the SIG and the IEEE

• Generation of TTCN from SDL is possible

March 2001

Tom Siep, Texas InstrumentsSlide 21

doc.: IEEE 802.15-01/185r0

Submission

Future Bluetooth/IEEE Collaboration

• IEEE 802.15 continues to work with the Bluetooth Special Interest Group– Submission of Errata– “Early” updates of the Spec from the SIG – current

version of Draft includes v1.1 Bluetooth Specification

– Plans for future revisions of• Version 1.x• Future versions

• There now is an overlap of “ownership” of the two documents.

March 2001

Tom Siep, Texas InstrumentsSlide 22

doc.: IEEE 802.15-01/185r0

Submission

Backup Slides

(likely not shown)

March 2001

Tom Siep, Texas InstrumentsSlide 23

doc.: IEEE 802.15-01/185r0

Submission

IEEE: An Overview• Established in 1884 (AIEE & IRE)

• Membership was 360,00 Dec99; 66% USA & 33% Non-USA

• Produces 30 percent of the world's published literature in electrical engineering, computers and control technology,

• Holds annually more than 300 major conferences

• Has more than 800 active standards with 700 under development.

March 2001

Tom Siep, Texas InstrumentsSlide 24

doc.: IEEE 802.15-01/185r0

Submission

IEEE P802 LAN/MAN• IEEE Project 802 Local and Metropolitan Area Network

Standards Committee

• Accredited by ANSI, Sponsored by IEEE Computer Society– Ethernet, Token Ring, Wireless, Cable Modem Standards– Bridging, VLAN, Security Standards

• Meets three times per year (400 individuals, 15% non-US)

• Develops equivalent IEC/ISO JTC 1 standardsJTC 1 series of equivalent standards are ISO 8802-nnn

• IEEE URLs– 802 http://www.ieee802.org/– 802.15 http://www.ieee802.org/15/

March 2001

Tom Siep, Texas InstrumentsSlide 25

doc.: IEEE 802.15-01/185r0

Submission

IEEE 802 Standards Principals• Due Process through established rules and

procedures

• Consensus highly desired, near unanimity is generally the rule

• Openness where all individuals, world-wide, have access to the process

• Balance maintained by having balloting group include both developers and users

• Right to Appeal both procedural and technical issues at any time during the process

March 2001

Tom Siep, Texas InstrumentsSlide 26

doc.: IEEE 802.15-01/185r0

Submission

Scatternet

March 2001

Tom Siep, Texas InstrumentsSlide 27

doc.: IEEE 802.15-01/185r0

Submission

Hidden Node Problem