BLE Channel Sounding - changing the number of samples.

[Vinay Bhagure]

I am testing out the Bluetooth Channel sounding sample with the nRF54L15-dk board using the samples of Channel sounding Initiator with ranging requester. How to change the number of samples in the round trip timing method and phase based ranging method. 

 

[Erik Sandgren]

Hello, 

Not sure if this is what you are looking for, but one way of changing the ratio of main mode to sub mode steps is by changing these two values https://github.com/nrfconnect/sdk-nrf/blob/509fa66004370f00faf13912cc6fced25dda6d6c/samples/bluetooth/channel_sounding_ras_initiator/src/main.c#L423-L424
For example if I change both to 1, I get roughly as many sub mode steps (RTT steps in this case) as I get main mode steps (PBR steps in this case). Example log from the sample with this change:

I: Estimated distance to reflector:
I: - Round-Trip Timing method: 4.592482 meters (derived from 78 samples)
I: - Phase-Based Ranging method: 0.434500 meters (derived from 79 samples)