* the get_ul_slot_offset function calculates the offset of the nth uplink (UL) slot for a given UE index within a TDD period * this function uses the frame structure bitmap to determine the UL slot positions
* the get_ul_slot_offset function calculates the offset of the nth uplink (UL) slot for a given UE index within a TDD period * this function uses the frame structure bitmap to determine the UL slot positions