Implementing TLS handshake on BLE

I have Bluetooth Low Energy(BLE) Communication module using TI CC26X2 R1. Now I want to implement mbed TLS handshake and encryption on my BLE module.

Encryption part , I was able to successfully do it. But I was stuck in implementing TLS handshake part, how to implement TLS handshake on BLE communication module.
Please help me out. I will be very much pleased if any example project is provided.