Theoretical current consumption calculation STM32WB

We are currently working on STM32WBCC. Let's say my device name is DEVA. Have the following questions:

1. DEVA needs any ability to connect to another BLE device DEVB.

2. DEVA needs to maintain the lowest possible power when having the connection in tact with DEVB. What power state should my DEVA be in.

3. I need to get a theoritical calculation on how much my device would consume in this state, also what would the entire connection cycle look like in terms of current consumption.