Implement variable switching times for inverter.

I have a motor control scheme, where I have to switch certain switches for half of sampling time. For e.g. if the switching sequence is [1 0 1] : Here Inverter legs 1,2,3 will have : Leg 1 upper sw on, lower off ; Leg 2: upper sw off, lower on ; Leg 3: upper sw on, lower off . However, this sequence will take the switching time as sampling time.

Now, I want to implement the switching sequence such that say the sequence is [1 1 0], then

Here Inverter legs 1,2,3 will have : Leg 1 upper sw on, lower off ; Leg 2: upper sw on, lower off ; Leg 3: upper sw off, lower on. But, each of these states will take the switching time as half the sampling time or 1/3rd the sampling time .

Below shown is the normal switching implementation:

How can I add the timing information to achieve the required swtiching and timing?