Re: Bleutooth SIG contra IEEE 802.15?

Daniel Meyer wrote:
> Hello,
>
> I just write my diploma thesis and here is some confusion about the
> differences between the Bluetooth SIG and IEEE 802.15.
>
> The literature said, that the Bluetooth SIG published their specifications
> in 1999 and 2001. And I can also read, that the IEEE-working-group 802.15
> grab these specifications and made their own standards based on the
> original Bluetooth-specs.
>
> And now the confusion: Some literature said, that there were TWO
> Bluetooth-specs today: Bluetooth SIG and IEEE 802.15, both incompatible.
> Another books said, that today the ONLY Bluetooth-specs are from IEEE
> 802.15, they said, that Bluetooth *is* IEEE 802.15 and IEEE 802.15 *is*
> Bluetooth.
>
> What is correct?

Bluetooth is a trademark of the Bluetooth Special Interest Group (SIG) and an
IEEE spec can only be referred to as "Bluetooth" if they have obtained the
license to use this mark AND All products pass through the original Bluetooth
Qualification process.

I.E you can't open a burger bar and call it MacDonalds unless you buy a
MacDonalds franchise and MacDonalds say your burgers are made the same, with the
same ingredients....

To make a similar networking scheme, Personal Area Networking for example, the
IEEE may as well use the Bluetooth standard as a basis. It's tried and tested
and the limitations are well known etc....

The problem that the IEEE face is that Bluetooth is not ISO OSI compatible, as
all other (afaik) IEEE 802 standards follow.
in other words, the protocol stack in Bluetooth does not closely map to the
seven layer OSI architecture. The 802 systems do follow this, near enough.

A compatibility issue when linking two independant systems is also addresses
schemes, however in this case it works in the IEEE's favour because the native
device addresses are taken directly from the IEEE hardware address space.

in other words, if the two standards are "able" to talk to each other, there
will be not address collisions or mismatching at the MAC level.

Rob

--
Rap it up for the common good
Let us enlist the neighbourhood
It's OK, I've overstood
This is a wordy rappinghood. OK, bye.

Tomtomclub, 1980.