NEXT GENERATION BLUETOOTH
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Transcript NEXT GENERATION BLUETOOTH
NEXT GENERATION
BLUETOOTH ®
OVERVIEW
By
Grady Green
Basic Bluetooth was covered in class
V2.1+EDR
V3.0+HS
V4.0 LE
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NEXT GENERATION
BLUETOOTH ®
V2.1+EDR
By
Grady Green
EDR (Enhanced Data Rate)
2 New Modulation Coding Schemes
π/4 DQPSK – 2Mb/s
8DPSK – 3Mb/s
Backward Compatibility
with GFSK
Source: Bluetooth® Enhanced, Data Rate (EDR):
The Wireless Evolution, Agilent Technologies
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NEXT GENERATION
BLUETOOTH ®
V3.0+HS
By
Grady Green
New Terms
HS – High Speed (needs two devices with HS compatibility)
AMP – Alternate MAC/PHY Protocol
PAL – 802.11 Protocol Adaptation Layer
eL2CAP – Enhanced Logical Link Control and Adaptation Layer Protocol
UCD – Unicast Connectionless Data
EPC – Enhanced Power Control
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NEXT GENERATION
BLUETOOTH ®
V3.0+HS
By
Grady Green
Added Additional Controllers
BR/EDR (same as before)
AMP MAC/PHY
Allows 802.11 MAC/PHY access to achieves speeds >400Mbps
Management Entity - AMP Manager
Logical Link Changes (eL2CAP) required for +HS
Enhanced QoS
Enhanced Retransmission Mode
Flow Controls
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NEXT GENERATION
BLUETOOTH ®
V3.0+HS
802.11 PAL
By
Grady Green
Under Classic Bluetooth Protocols
Converts data from Bluetooth Domain to 802.11
Domain
Removes Bluetooth Header
Adds 802.11 Header
Completed in reverse as well
Works with or without L2CAP involvement
Source: Confidential BLUETOOTH HIGH SPEED TECHNOLOGY
OVERVIEW, Broadcom Corporation, March 2, 2010
Source: http://www.palowireless.com/bluearticles/packets.asp
Source:
http://cecs.wright.edu/~pmateti/InternetSecurity/Lectures/WirelessHacks/MatetiWirelessHacks_files/image002.jpg
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NEXT GENERATION
BLUETOOTH ®
V3.0+HS
BR/EDR
By
Grady Green
AMP
Source: Sybase – Bluetooth Technology: Bluetooth V3.0 The Next generation
www.sybase.com/ianywhere
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NEXT GENERATION
BLUETOOTH ®
V3.0+HS
By
Grady Green
eL2CAP
Upgraded through Extended
Flow Specifications
Best Effort
Guaranteed Channel
Or Both
Source: Sybase – Bluetooth Technology: Bluetooth V3.0 The Next generation
www.sybase.com/ianywhere
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NEXT GENERATION
BLUETOOTH ®
V3.0+HS
By
Grady Green
eL2CAP
Upgraded through Extended
Flow Specifications
Best Effort
Guaranteed Channel
Or Both
Source: Sybase – Bluetooth Technology: Bluetooth V3.0 The Next generation
www.sybase.com/ianywhere
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NEXT GENERATION
BLUETOOTH ®
PROTOCOL STACK
By
Grady Green
Applications
TCP/IP HID RFCOMM
Application
Framework and
Support
Data
Host Controller
Interface
L2CAP
Audio
Link Manager
Baseband
RF
Link Manager and
L2CAP
Radio & Baseband
Source: Bluetooth Architecture Overview
Dr. Chatschik Bisdikian, IBM Research
IEEE 802.15 document #99069r1
Source: Sybase – Bluetooth Technology:
Bluetooth V3.0 The Next generation
www.sybase.com/ianywhere
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NEXT GENERATION
BLUETOOTH ®
V3.0+HS
By
Grady Green
UCD
Permits service data to be sent without establishing an explicit L2CAP
channel. It is intended for use by applications that require low latency between
user action and reconnection/transmission of data. This is only appropriate for
small amounts of data
EPC
Updates the power control feature to remove the open loop power control,
and also to clarify ambiguities in power control introduced by the new
modulation schemes added for EDR. Enhanced power control removes the
ambiguities by specifying the behavior that is expected. Additionally, a “go
straight to maximum power” request has been introduced. This is expected to
deal with the headset link loss issue typically observed when a user puts their
phone into a pocket on the opposite side to the headset
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NEXT GENERATION
BLUETOOTH ®
V4.0 LE
By
Grady Green
Low Energy
Emerging Markets
Health Care
Fitness and Sports
Home Entertainment
Security
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NEXT GENERATION
BLUETOOTH ®
V2.1 – V3.0 – V4.0 Stack
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=1&ved=0CCsQFjAA&url=ht
tps%3A%2F%2Fwww.bluetooth.org%2Fenus%2FDocuments%2FBW13_DayOne_Session1_BluetoothBasic
s.pdf&ei=JEOFUumjHI_PkQfjiIAw&usg=AFQjCNF2JuVjJGHxOXOanVAwbA43RaRlxA
By
Grady Green
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NEXT GENERATION
BLUETOOTH ®
V4.0 LE
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=1&ved=0CCsQFjAA&url=ht
tps%3A%2F%2Fwww.bluetooth.org%2Fenus%2FDocuments%2FBW13_DayOne_Session1_BluetoothBasic
s.pdf&ei=JEOFUumjHI_PkQfjiIAw&usg=AFQjCNF2JuVjJGHxOXOanVAwbA43RaRlxA
By
Grady Green
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NEXT GENERATION
BLUETOOTH ®
SUMMARY
By
Grady Green
Basic Bluetooth was covered in class
V2.1+EDR
V3.0+HS
V4.0 LE
If you have any questions please email me at
[email protected]
THANK YOU
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