Direction Finding was introduced with Bluetooth 5.1 and uses of Angle of Arrival (AoA) and Angle of Departure(AoD) to determine location to sub-meter accuracy.
Direction Finding
Enhancing Bluetooth Location Services with Direction Finding
New Bluetooth Direction Finding Feature Will Enhance Location Services Solutions
Bluetooth Enhances Support for Location Services with New Direction Finding Feature
Bluetooth Direction Finding: Angle of Arrival (AoA) and Angle of Departure (AoD)
Angle of Arrival - Bluetooth 5.1 Direction Finding Explanation
Bluetooth AoA Direction Finding
AoA and AoD: Driving Business Value Through Location
Bluetooth AoA Direction Finding Antenna Design
Location Services and Direction Finding with Bluetooth
Bluetooth AoA Direction Finding Study Finds Limitations
Practical Bluetooth AoA Direction Finding Tips
Bluetooth AoA Direction Finding
How we built our Bluetooth direction finding demo
Bluetooth® Low Energy (LE) direction finding
2D vs 3D Bluetooth AoA Direction Finding
Bluetooth Direction Finding Antenna Arrays
How Accurate is Bluetooth Direction Finding?
Practical Bluetooth AoA Direction Finding Tips