for the first time in 8 years a new Full
Bluetooth version has been launched Bluetooth 6.0 is here but are the new
features things you'll actually be excited about that might depend on you
let's get right into it with a cool feature called Channel sounding because
Bluetooth is very commonly used to locate misplaced devices Channel
sounding was implemented to make this process more accurate by using two new
techniques to locate devices the first called round trip time notes the exact
time a signal leaves one device the time it arrives at the second device and how
long it takes to come back to the first device to help calculate the distance
between them the second technique is called PBR and no I'm not talking about
the greatest beer to ever grace this fin land PBR stands for phase-based ranging
which measures the difference in the phase of the wave that travels between
the two devices Bluetooth 6.0 can leverage both techniques at the same
time to judge distances more accurately than the the previous method which
mostly relied on measuring signal strength and angles Channel sounding is
supposed to allow you to pinpoint a device's location down to a few
centimeters under optimal conditions similar to the ultra wide band Tech that
Apple uses in its air tags but since Bluetooth is a widely used open standard
the hope is that Bluetooth 6.0 will make precise location measurement more
accessible if you're not in the Apple ecosystem Channel soundings better
distance sensitivity also has implications for physical security as it
can be used to ensure that things like Bluetooth operated smart locks can only
be operated by someone who's both authorized and in close proximity to the
lock and not by some sneaky boy in a
different room but if you're the type of person that you know just never loses
anything there are other Bluetooth six features you might care about which
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are a pair of features in Bluetooth 6 that refer to advertising but
fortunately they have nothing to do with ads for things like this lovely shirt
from LTT Store I'm wearing thank goodness instead these features are
actually meant to help your Bluetooth devices suck down less battery what the
advertising battery I'll explain the
first feature is called decision-based advertising filtering and it works with
Bluetooth low energy which is used by a huge number of devices and utilizes
multiple channels basically radio frequencies to transmit data these
channels are split into primary and secondary with the primary channels
mainly being used for advertising that is telling other nearby devices that a
certain Bluetooth device is present it's how your phone detects your earbuds or
how your laptop detects your Bluetooth mouse with this new feature a device can
listen to the data being sent to it on a primary advertising Channel and use that
data to decide if the remaining data on the secondary channels is relevant to
what the application is doing this means that your device won't waste battery on
scanning for and processing extraneous transmissions for example imagine a
music app trying to listen for music signals if it hears an advertising
packet from a fitness tracker on the primary Channel it knows it can ignore
the data on the secondary channel so it doesn't waste energy processing your new
personal best clean and jerk that's a fitness thing Glenn the other
advertising feature is called monitoring advertisers and it's a bit more
straightforward Bluetooth devices often cannot know if a Sav device they want to
connect to is within a close enough range this means that a device can waste
a lot of energy searching for the gadget it's trying to connect to even if it's
well out of range like if you leave your Bluetooth speaker at home this is where
monitoring advertisers comes in the device instead tracks when a device
moves out of range so the host device will stop trying to connect to it once
the device moves back into range like when you get home the host will know
that too so it can automatically reconnect and speaking of speakers LOL
there are also minor changes to exactly how data packets are delivered that
should decrease audio latency meaning an improvement in how well the sound coming
out of your headphones matches what's happening on the screen not going to say
no to that of course we should note that Bluetooth 6.0 is just a specification
for now and it's up to manufacturers to start including it in their products
while we do expect this will happen there have actually been cases in the
past where a technology failed partly because no one made anything for it
which is exactly what happened to wireless USB so if you want to learn
more about why that failed go watch this video next it's fascinating