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Embedded Bluetooth Gang Xie presents to EE281 Class Stanford University 11/22/2002

Embedded Bluetooth Gang Xie presents to EE281 Class Stanford University 11/22/2002. Bluetooth Was Originally a Cable-Replacement Technology. In the Office …. You arrive at the office …. While in a meeting, …. When inspecting equipment, …. On the road …. You arrive at the airport ….

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Embedded Bluetooth Gang Xie presents to EE281 Class Stanford University 11/22/2002

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  1. Embedded Bluetooth Gang Xie presents to EE281 Class Stanford University 11/22/2002

  2. Bluetooth Was Originally a Cable-Replacement Technology

  3. In the Office … You arrive at the office … While in a meeting, … When inspecting equipment, …

  4. On the road … You arrive at the airport … You enter the airport waiting lounge, … You get on the rent-a-car bus, …

  5. Documentation Profiles describe how the technology is used, i.e., how different parts of the specification can be used to fulfill a desired function for a Bluetooth device. Specification describes how the technology works, i.e., the Bluetooth protocol architecture.

  6. Bluetooth Specification Protocol Stack

  7. Bluetooth Profile Structure

  8. Radio Specification • PDU format: • The Bluetooth system is operating in the 2.4 GHz ISM (Industrial Scientific Medicine) band. The regulatory range of this frequency band is 2.400 – 2.4835 GHz. • The Bluetooth radio accomplishes spectrum spreading by in 79 hops displaced by 1 MHz. • Radio modulation uses GFSK. Operating frequency bands: 0 1 2 78 2.402 GHz 2.480 GHz

  9. Baseband Specification There is one master and one or more slaves in each piconet Packet format:

  10. Service Discovery Protocol Specification • Protocol Data Unit format: • PDU ID: identifies the type of PDU • Transaction ID: uniquely identifies request PDUs and is used to match response PDUs to request PDUs • Parameter Length

  11. Bluetooth Design and Development Tools • Design tools: RF and digital design tools, simulators, and other tools • Development tools: including modules, chipsets, RA and digital kits, protocol implementations and other tools • Testing/evaluation tools

  12. Key Features • Robustness • Low complexity • Low power: battery powered • Low cost: about $5 • Fast acknowledgement • Fast frequency hopping scheme • Shorter packets

  13. References • http://www.bluetooth.com/ • http://www.palowireless.com/ • http://e-www.motorola.com/ • http://www.brainboxes.com/ • http://www.google.com/

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