BLE Constant Tone Extension (CTE) Support on Android and iOS Devices for Direction Finding

Question

Can Android or iOS devices broadcast BLE signals using the BLE Constant Tone Extension (CTE)? I plan to use a Nordic chip and an array antenna on the receiver side to determine the direction of the smartphone. If anyone has experience with this, could you share whether BLE CTE is supported and works properly on these devices?

I am aiming to use this technology, but I have done some research to confirm whether Android or iOS devices can broadcast BLE signals with Constant Tone Extension (CTE). I couldn't find a clear answer on whether these devices support broadcasting with CTE. What I am expecting is that Android or iOS devices would support CTE broadcasting, allowing me to perform accurate direction finding on the receiver side (with a Nordic chip and an array antenna).