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Computer Science - Bluetooth - Presentation - Ian Gifford, Study notes of Computer Numerical Control

Moradabad Institute of TechnologyComputer Numerical Control

Detailed informtion about Bluetooth RF Specifications, The Bluetooth network topology, The Piconet, Inter-connected Piconets-The Scatternet, Bluetooth SIG Document Process.

Typology: Study notes

2010/2011

Uploaded on 09/06/2011

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1
Bluetooth RF Specifications
Specified for low cost, single chip
implementation
–Noise floor margin for substrate noise and
low current LNA
–Linearity set by near-far problem
–In-band image allows low-cost low IF
–VCO phase noise enables integrated VCO
–TX-RX turn around time enables single
synthesizer
–2.4 ISM band chosen for global use and
process capabilities
Sensitivity traded for low cost integration capability
pf3
pf4
pf5
pf8
pf9
pfa
pfd
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pf12
pf13
pf14
pf15

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Download Computer Science - Bluetooth - Presentation - Ian Gifford and more Study notes Computer Numerical Control in PDF only on Docsity!

Bluetooth RF Specifications

Specified for low cost, single chip

implementation

Noise floor margin for substrate noise and

low current LNA

Linearity set by near-far problem

In-band image allows low-cost low IF

VCO phase noise enables integrated VCO

TX-RX turn around time enables single

synthesizer

2.4 ISM band chosen for global use and

process capabilities

Sensitivity traded for low cost integration capability

M

M

S^ S

S

S

P

sb

sb

P

P

The Bluetooth network topology

  • Radio designation - (^) Connected radios can be master
or slave
Radios are symmetric (same radio
can be master or slave)
  • Piconet
Master can connect to 7
simultaneous or 200+ inactive
(parked) slaves per piconet
Each piconet has maximum
capacity (1 MSps)
Unique hopping pattern/ID
  • Scatternet - (^) Piconets can coexist in time and
space

The Piconet

I D a

P

M S

or

s b

A

D

C

B

E

I D b

I D a

I D c

I D d

I D e

M

P

S

S

s b

I D a

I D c

I D d

I D a

IDa

IDa

I D e

I D b

All devices in a piconet hop together

To form a piconet: master gives slaves its clock and device ID
  • Hopping pattern determined by device ID (48-bit)
  • (^) Phase in hopping pattern determined by Clock

Non-piconet devices are in standby

Piconet Addressing

Active Member Address (AMA, 3-bits)
Parked Member Address (PMA, 8-bits)

Inter-connected Piconets -

The Scatternet

Complex

slave
master
master/slave

Printer

Laptop

Laptop

Mouse

Mobile Phone

Headset

LAN

Access Point

Source: Kris Fleming 20Mar01 [Bluetooth-BOF-at-50th-IETF-PAN-Talk.ppt]

Application Framework
and Support
Link Manager and
L2CAP
Radio & Baseband
Host Controller
Interface

RF

Baseband

Audio
Link Manager
L2CAP

Other TCS RFCOMM

Data

The Bluetooth protocols

A hardware/software description

An application framework

SDP

Applications

Control

middleware & data applications
middleware & data applications
audio apps
audio apps

a: audio

d: data

c: control

a: audio

d: data

c: control

radio
radio
baseband
baseband
link
manager
link
manager
L2CAP
L2CAP

control

control audio

HCIHCI audio

transport

protocol

group

transport

protocol

group

middleware

protocol

group

middleware

protocol

group

application

group

application

group

The transport protocols

(a) (a) (d)(d) (c)(c)

Source: Dr. Chatschik Bisdikian [BT_OVERVIEW_UNIVMARYLAND_03_2001.PPT]

a: legacy application

b: Bluetooth specific application

a: legacy application

b: Bluetooth specific application

transport

protocol

group

transport

protocol

group

application

group

application

group

transport protocols
transport protocols

The application group

middleware

protocol

group

middleware

protocol

group

middleware protocols
middleware protocols

Bluetooth adaptation

Bluetooth adaptation common services

common services

platform APIs

platform APIs

profile

applications

profile

applications

new/future

applications

(a) (a) (b)(b) (b)(b)

(b) (b) (b)(b)

Source: Dr. Chatschik Bisdikian

Interoperability & Profiles

Profiles

Protocols
Applications

Represents default

solution for a usage

model

Vertical slice through

the protocol stack

Basis for

interoperability and

logo requirements

Each Bluetooth device

supports one or more

profiles

Source: Dr. Chatschik Bisdikian [BT_OVERVIEW_UNIVMARYLAND_03_2001.PPT]

Profiles (spec v.2)

Radio (radio)
Radio 1 Improvements (radio1)
Car Profile (car)
PAN Profile (pan)
Human Interface Device (hid)
Co-existence/Interoperability with 2.4 GHz ISM Devices
(coexist)
Richer Audio/Voice/Video (av)
Printing Profile (printing)
Still Image Profile (imaging)
Extended Service Discovery Profile (esdp)
Local Positioning Profile (lp)
UDI for Japanese 3G Handsets (udi)
ISDN (isdn)

Source: Dr. Chatschik Bisdikian [BT_OVERVIEW_UNIVMARYLAND_03_2001.PPT]

Profiles, Bluetooth Draft

Specifications - an update

12Jun

Bluetooth Network Encapsulation Protocol, v0.95a

26Jun

Bluetooth Personal Area Network Profile, v0.

28Jun

Bluetooth Basic Imaging Profile, v0.

30Jul

Bluetooth Human Interface Device Profile, v0.9b

14Aug

Bluetooth Hands-Free Profile, v0.
The BSIG BoD approved the public release of the BNEP and PAN Profile 7Sep

More on Bluetooth? (cont)

  • More Info:
  • (^) http://www.bluetooth.com/developer/specification/specification.asp
  • (^) More Info:
  • (^) http://internet.motlabs.com/books.htm

17

Who Is Bluetooth?

Harald Blaatand “Bluetooth” II
King of Denmark 940-
  • (^) Son of Gorm the Old (King of

Denmark) and Thyra Danebod

(daughter of King Ethelred of

England)

This is one of two Runic stones erected
in his capitol city of Jelling (central
Jutland)
This is the front of the stone
depicting the chivalry of Harald.
The stone’s inscription (“runes”) say:
  • (^) Harald christianized the Danes
  • Harald controlled Denmark and

Norway

  • (^) Harald thinks notebooks and cellular

phones should seamlessly

communicate

Source: Jim Kardach, Intel, [MobileDemo.ppt] 8Jun00 IEEE ComSoc http://grouper.ieee.org/groups/802/15/pub/2000/Jul00/00184r0P802-15_TG1-Bluetooth_IEEE-ComSoc-Pitch-8Jun00.ppt

19

HIPERLAN/1 802.11b

HIPERLAN/2 802.11a

ANSIBLE

80x

4 years

Application space

Video data rate

HSCD

GPRS

EDGE

3GPP

VoiceVoice

Text MessagingText Messaging

Still ImagingStill Imaging

Audio Stream ingAudio Stream ing

Video StreamingVideo Streaming

Ubiquitous TV

Infotainment

Virtual Homes

High Speed Internet

PAN/LAN Convergence

Bluetooth

HomeRF

HIPERPAN

2.4GHz

5GHz

60GHz

0.9-1.8GHz

0,

0,

1

10

100

1000

1996 1998 2000 2002 2004 2006 2008 2010

product date

Max data rate (Mbps)

Local Area WLAN Nomadic Wide Area Cellular Vehicular PAN

Major opportunities and convergence

scenario

Source: Marc de Courville, Motorola, May00 IEEE 802.15 Plenary Meeting http://grouper.ieee.org/groups/802/15/pub/2000/Mar00/00128r0P802-15_TG3-OFDM-HIPERPAN.ppt

Questions