Find retransmission count in BLE

[mbiglari]

Hello. I'm using esp32-S3 for my research on BLE connection. I implemented two devices which one of them is central and another one is peripheral. Also, I fixed the channel map to force communication in channel 4. Then I fixed my Wifi mode to use channel one which has the same frequency as BLE channel 4. After all of trying, I realized that BLE has retransmission in the Link layer and because of this retransmission, my BLE devices can communicate in this noisy environment. So I need to calculate the Packet Reception Ratio and I don't know how to find or set this retransmission count. Any anybody know how to set or get the retransmission count in the BLE link layer? Or suggest a way to calculate the packet reception ratio?

Thanks in advance