Bluetooth 6.0 boasts that adding Channel Sounding will improve keyless entry between the phone and the cars enabled. The feature will allow developers to “enhance the security” of the digital key with an extra layer that only unlocks a vehicle when connected with an authorized device at a particular distance.
Bluetooth direction finding offers two distinct
architectures or methods, each of which exploits the
same underlying basis. The first of the two methods is
called Angle of Arrival (AoA) and the second is called Angle of Departure (AoD).
In each case, special direction finding signals are
transmitted by one device and the signal is then used
by another device to calculate the direction of the
received signal.
Using AoA, the receiver contains a multi-antenna array
as shown in Figure 3. Using AoD, it is the transmitting
device that contains the antenna array, as shown in
Figure 4.
I guess that that’s going to require an antenna array and independent processing of each antenna then.
kagis
https://www.bluetooth.com/wp-content/uploads/Files/developer/RDF_Technical_Overview.pdf
I guess that that’s going to require an antenna array and independent processing of each antenna then.