1. Bluetooth Profiles

2. Bluetooth profiles - What and why
Why do we need profiles
How do we find profile support
What profiles are there
What profiles are there going to be
Sony Training Seminar 10th April 2002

3. Profiles – Why do we need profiles
Hardware
All this hardware is great – but you need to enable it
Software
Software allows Bluetooth to work
It connects the devices
It connects applications to services
It connects users to the things they need
Sony Training Seminar 10th April 2002

4. Profiles – Why do we need profiles (2)
How do users find things they need?
Two steps – find and discover
First, find other devices
Link Manager can search for other devices
This is called Inquiry
Second, what is this device
Ask the devices you find what they are
Sony Training Seminar 10th April 2002

5. Profiles – What is this device?
We could just define a number of different devices
Mouse
Phone
Computer
PDA
Camera
This is not good
Everybody would have to support the same feature set
You couldn’t add an extra features
It would not be a competitive market
Sony Training Seminar 10th April 2002

6. Profiles – What is this device again?
Define a device by what it can do?
Mouse
Keyboard
File Transfer
Dial Up Connection
Headset
These are profiles
Defines one or more classes of functionality that a device provides
Sony Training Seminar 10th April 2002

7. Profiles – Interoperability
Its no good creating a mouse if you can’t make it work with all the computers in the world?
Its no good making a wireless headset if it doesn’t work with phones
By defining a standard for services, you create interoperability
Sony Training Seminar 10th April 2002

8. Profiles – Inheritance
Why reinvent the wheel
If you can reuse a profile, why not?
In Bluetooth you must reuse a profile if you can
Example
Fax profile uses Serial port profile
File transfer uses Obex profile
Obex profile uses Serial port profile
Serial port profile uses GAP
GAP?
General Access Profile
Sony Training Seminar 10th April 2002

9. Profiles – Need to search for services
Searching for services
It would be good to just print
Not have to tell your computer what the printer’s Bluetooth address is
Services local / remote
You could have a printer with a Bluetooth chip
You could have a computer with a printer connected
You could have a network access point with printer support
Profiles
Bluetooth would be useless without knowing how to find these services
Sony Training Seminar 10th April 2002

10. Profiles – How do we find profiles
Adhoc network
Bluetooth creates adhoc networks
It might not know what is around it
BUT it can find out
Sony Training Seminar 10th April 2002

11. Profiles – Service Discovery Part 1
Step 1 – Inquiry
First we need to find all other devices in the world
We do this by doing an inquiry
This will return a list of Bluetooth devices near you
Nominally this is about 10m radius
Dev A
Dev A
Dev B
Dev B
Dev C
Dev C
Sony Training Seminar 10th April 2002

12. Profiles – Service Discovery Part 2
Step 2 – SDP Query
For each device we find
Make a connection, and initiate an SDP query
This will give you a list of profiles that the device supports
Dev A
Headset
Dev B
Dev B
Dev A
Printer
Dev C
Obex
Serial
Sync
Dev C
Sony Training Seminar 10th April 2002

13. Profiles – Service Discovery Part 3
Step 3 – Connect to Service
For all devices you have SDP results from
Try to connect to the first device that has your service
If that fails then try another one
Dev A
Headset
Dev B
Printer
Printer
Dev C
Obex
Serial
Sync
Obex
Serial
Sync
Sony Training Seminar 10th April 2002

14. Profiles – What profiles are there
Everything
All services should have a profile
Anybody can create a profile
Needs to be agreed by Bluetooth SIG
Normally would have a Working Group to determine interoperability issues
Don’t want to favor one hardware type, or architecture
Not There Yet
Unfortunately we’re not there yet
There are lots of profiles most are very useful
BUT there are still profiles that could be defined
It is up to you to suggest, create, and drive their creation
Sony Training Seminar 10th April 2002

15. Profiles – GAP General Access Profile Defines Provides
Base of inheritance tree
Defines
User interface
Modes
Security
Idle Mode
Link Establishment
Provides
Guarantees that links and channels can always be established between Bluetooth devices
Sony Training Seminar 10th April 2002

16. Profiles – Service Discovery Application Profile
SDAP
Does for applications what SDP does for services
Defines
Standardized procedures to locate and identify services
Doesn’t
Define access or use to services
Selection of services
Automatic Service Discovery
Sony Training Seminar 10th April 2002

17. Profiles – Serial Port Profile
Serial Port Profile (SPP)
Requires GAP
Defines a virtual RS232 connection
Defines
A single connection between two devices
Multiple connections are possible
Supports
Legacy applications
Rates of 128kbs and higher
Sony Training Seminar 10th April 2002

18. Profiles – Headset Profile
Requires GAP and Serial Port Profile
Uses serial port for control
Defines
The ultimate headset
Can use a subset
Doesn’t
Define master/slave roles
Define security
Sony Training Seminar 10th April 2002

19. Profiles – FAX Profile Fax Security
Requires GAP and Serial Port Profile
Uses serial port for transfer of data
Security
Requires data encryption
Requires a secure connection
Sony Training Seminar 10th April 2002

20. Profile – Dial Up Networking Profile
DUN
Requires GAP and Serial Port Profile
Used to connect to Internet
Security
Requires data encryption
Requires a secure connection
Sony Training Seminar 10th April 2002

21. Profile – LAN Access Profile
Requires GAP and Serial Port Profile
Enables LAN access using PPP over RFCOMM
Provides
No required protocol (IP, IPX, X.25 – whatever)
Can allow multiple devices to be connected
Doesn’t Provide
No LAN Emulation
No Ad-Hoc networks
No Conferencing
Sony Training Seminar 10th April 2002

22. Profile – Generic OBEX Profile
General Obex
Requires GAP and Serial Port Profile
Used to exchange data
Connection
Bonding or Pairing is used
Uses Obex initialization
Security is dependant on application
Sony Training Seminar 10th April 2002

23. Profile – Object Push Profile
Requires GAP, Serial, General Obex
Simple push for objects
Business Cards
Calendar Appointments
Connection
Bonding required / use is optional
Security is required / use is optional
Sony Training Seminar 10th April 2002

24. Profile – File Transfer Profile
Requires GAP, Serial, General Obex
Browse Files
Transfer Files
Manipulate Remote Files
Connection
Bonding required / use is optional
Security is required / use is optional
Sony Training Seminar 10th April 2002

25. Profile – Synchronization Profile
Requires GAP, Serial and General Obex
Synchronizes devices
Derived from IrMC
Connection
Bonding required / use is optional
Security is required / use is optional
Sony Training Seminar 10th April 2002

26. Profile – Cordless Telephony Profile
Requires only GAP
Profiles land line access for Bluetooth phone
Enables 3 in 1 phone
Terminology
Base station is called “Gateway”
Handset is called “Terminal”
Gateway is always master, Terminal is always slave
Security
Authentication and Encryption is required
Sony Training Seminar 10th April 2002

27. Profile – Intercom Profile
Requires only GAP
Provides “walkie-talkie” function
Enables 3 in 1 phone
Sony Training Seminar 10th April 2002

28. Profiles – What profiles are there going to be
Future
Some profiles are only just being defined
Computer industry is starting to define profiles
Profiles
Car
HID
A/V
Printer
Still Image
ESDP
Sony Training Seminar 10th April 2002

29. Car Profile Car Call handling between Car and Portable Phones
Personalizing the Car and its Devices
Portable Device Exports its User Interface to the Car
Remote access to Car Position
Diagnostics and Programming
Sony Training Seminar 10th April 2002

30. HID Profile HID Human Interface Device Mice Keyboard
Conference Controllers
Living Room Remote Controls
Sony Training Seminar 10th April 2002

31. AV Profile Audio / Visual
CD Quality audio headphones loudspeakers and microphones
Dictation Quality voice
Wireless short-range video display
Wireless video cameras
Video conference capability
Sony Training Seminar 10th April 2002

32. Printer Profile Printer Printing from PC
Printing from mobile phone / PDA / Camera
Control of printer
Simple Text
Document Quality Printing
Image Quality Printing
Negotiate protocols using SDP (Basic Text / PCL / Postscript)
Sony Training Seminar 10th April 2002

33. Still Image Profile Still Image Exchange of digital images
Extra image information (date/time/weather/sound clip)
Could be Displayed / Stored / Forwarded
Could be used for Printing
Sony Training Seminar 10th April 2002

34. Conclusion Profiles are essential for Interoperability
Profiles can be found using Inquiry and SDP
Provide user view of Bluetooth
Good profile – good user experience
More profiles are coming soon
Sony Training Seminar 10th April 2002