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Technology Stocks : Lucent Technologies (LU)
LU 2.730-0.5%3:59 PM EST
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To: jack bittner who wrote (12959)1/25/2000 4:47:00 PM
From: Georgeb  Read Replies (1) of 21876
 
Hi Jack,

Sorry for all the acronyms. RF means the radio frequency module, that is the wireless part. A cellular handset (or a wireless laptop or PDA) ends up communicating to a base station in a network. Bluetooth is not used in the network, it is used in the handset (or laptop) for the cellular application. One way for a handset to provide Internet access to a laptop or PDA (personal desk assistant like a Palm Pilot) is to have the handset establish a network connection, then it would provide the data to the laptop or PDA over the Bluetooth link. A laptop equiped with a wireless modem can directly access a cellular or data network) Bluetooth could also be built into a desktop or laptop and used to communicate data to a peripheral like a printer for example.

There is a protocol defined for Bluetooth that determines how the link is set up, and data exchanged. That protocol is software that runs in a hierarchial fashion called a protocol stack where each layer of software has a different function to perform on the data stream. The software is run on a microprocessor. That processing is called the baseband processing. The baseband is the payload of the wireless circuits.

I don't believe that Nortel has a Bluetooth product. Surprisingly, RF Micro doesn't have a device either, althought they provide a great portfolio of cellualr, cable modem, and other RF components.
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