The 1st thing when you get up take the puppy out, even before you go. Each time the puppy wakes up, take the puppy out. After each meal, take the puppy out. Sometimes you may have to stand there for some time to get the puppy to go. This is very important in the beginning so that you can praise the puppy for pottying.
Praise goes a long way in potty training a puppy.
If you are outside training you may use a room to keep them in or a crate. The smallest size I would use would be the 18 inch by 36 inch. There is room for a bed, dishes and newspapers. If they are confined some hours they need more space than a little airline carrier. Some people like to use a collapsible exercise pen to keep the puppy in during training.