User Manual
Table Of Contents
- INTRODUCTION
- CONTROLLING THE ACCESS SERVER
- CONFIGURATION
- USING THE SYSTEM
- BLUETOOTH TECHNOLOGY OVERVIEW
- INTRODUCTION TO SDK
- INSTALLING THE WRAP SOFTWARE DEVELOPMENT ENVIRONMENT
- CREATING WRAP APPLICATIONS
- BLUETOOTH SERVER SOCKET INTERFACE
- I/O API
- ABOUT BLUEGIGA
- APPENDIX A – WRAP DIRECTORY STRUCTURE
USER'S AND DEVELOPER'S GUIDE WRAP MULTIRADIO ACCESS SERVER
5 BLUETOOTH TECHNOLOGY OVERVIEW
Link Controller (LC)
RF RF
BaseBand
Logical Link Control and Adaption Protocol
(L2CAP)
SDP RFCOMM
BGT Bluetooth API
PPP / PAN
TCP/IP
BT Lower
Layers
BT Upper
Layers
Link Manager Protocoll (LMP)
HCI driver
Physical Bus Driver
HCI Firmware
BNEP
Profiles
Wireless Applications
Wireless Applications
Figure 5. Bluetooth Software and Hardware Components.
5.1 F
REQUENCY BANDS AND CHANNEL ARRANGEMENT
The Bluetooth system operates in the license-free 2.4 GHz ISM (Industrial Science Medial)
band using frequency hopping spread spectrum (FHSS). In the vast majority of countries
around the world this frequency band is 2400 – 2483.5 MHz. Some countries have, however,
national limitations on the frequency range. In order to comply with these national limitations,
special frequency hopping algorithms have been specified for these countries. It should be
noted that products implementing the reduced frequency band will not work with products
implementing the full band. Products implementing the reduced frequency band must therefore
be considered local versions.
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