bluetooth v2.1

(V2.1+EDR)

CONTENTS

• BLUETOOTH• FEATURES• ARCHITECTURE• USAGE MODELS• SECURITY• COMPARISON WITH v2.O• ONGOING DEVELOPMENTS

BLUETOOTH

• WHAT IS BLUETOOTH ?

• PICONETS

• ISM BAND

• BLUETOOTH SIG

COMPARISON WITH IR

• DRAWBACKS OF IR

– LINE OF SIGHT TECHNOLOGY– ONE TO ONE TECHNOLOGY

• ADVANTAGES OVER IR

– USES RADIO WAVES– ONE MASTER CAN CONNECT TO SEVEN SLAVES

FEATURES

• LOW POWER RADIO WAVES• ISM FREQUENCY 2.4 GHz• DATA TRANSFER RATE

– BASIC RATE 1Mbps – ENHANCED DATA RATE 2Mbps & 3Mbps

• EIGHT DEVICES SIMULTANEOUSLY• AVOID INTERFERENCE• FREQUENCY HOPPING SPREAD SPECTRUM

– 79 RANDOM FREQUENCIES

• AUTOMATIC PAN CREATION

EASY PAIRING

Turn on your headset Select the "Add Bluetooth device" option on your phone

Your phone and headset find each other and connect automatically

New Bluetooth Technology Makes it Easier to Connect Devices

ARCHITECTURE•CHANNEL MANAGER

oCREATE,MANAGE AND DESTROY L2CAP CHANNELSo INTERACTS WITH LINK MANAGER TO CREATE NEW

LOGICAL LINKS

•L2CAP RESOURCE MANAGERoORDERING OF SUBMISSION OF PDU FRAGMENTS

TO BASEBANDoENSURE QoS COMMITMENT

•LINK MANAGERoCREATION,MODIFICATION AND RELEASE OF LOGICAL LINKSo USES LINK MANAGER PROTOCOL

•BASEBAND RESOURCE MANAGERoACCESS TO RADIO MEDIUMoSCHEDULES TIMES ON PHYSICAL CHANNEL

•LINK CONTROLLERoENCODING AND DECODING OF BLUETOOTH PACKETSoLINK CONTROL PROTOCOL SIGNALING

•RFoTRANSMIT &RECEIVE PACKETS ON PHYSICAL CHANNEL

•DEVICE MANAGERoINQUIRING,CONNECTING & FINDING DEVICESoMAKE LOCAL DEVICE DISCOVERABLE

USAGE MODELS

• FILE TRANSFER

• INTERNET ACCESS

• LAN ACCESS

• SYNCHRONIZATION

• HEADSET

SECURITY ISSUES

• BLUE JACKING

• BLUE BUGGING

• CAR WHISPERER

SECURITY

• SERVICE LEVEL & DEVICE LEVEL SECURITY

• OFFER DIFFERENT MODES

• AUTHENTICATION

• NON DISCOVERABLE MODE

COMPARISON WITH V2.0

• ERRONEOUS DATA REPORTING

• ENCRYPTION PAUSE AND RESUME

• EXTENDED INQUIRY RESPONSE

• SECURE SIMPLE PAIRING

• INCREASED SECURITY

ONGOING DEVELOPMENTS

• BLUETOOTH LOW ENERGY WIRELESS TECHNOLOGY– SMALLER & FASTER– ULTRA LOW POWER CONSUMPTION– MAIN APPLICATIONS IN WRIST WATCHES & WIRELESS KEYBOARDS

• HIGH-SPEED BLUETOOTH– SYNCHRONIZING &TRANSFERRING LARGE AMOUNTS OF DATA– MAIN APPLICATIONS IN MULTIMEDIA PROJECTORS AND TV SETS

• BLUETOOTH 3.0– PLANS TO ADOPT ULTRA WIDE BAND RADIO TECHNOLOGY– ALLOW BLUETOOTH USE OVER UWB RADIO ENABLING VERY FAST DATA RATE UPTO

480Mbit/s

REFERENCE

• BLUETOOTH CORE SPECIFICATION v2.1+EDR• BLUETOOTH PROTOCOL ARCHITECTURE v1.0 • http://www.bluetooth.com/Bluetooth/Technology/ -OFFICIAL

BLUETOOTH SITE• http://en.wikipedia.org/wiki/Bluetooth -WIKIPEDIA ENTRY ON

BLUETOOTH• http://electronics.howstuffworks.com/bluetooth.htm -HOW

STUFF WORKS ENTRY ON BLUETOOTH