You need to obtain a TRV for your baby to be able to bring th baby to Canada. Thereis no guarantee the TRV will be approved. Probably a 50/50 chance. If the TRV is refused, you can try applying for a TRP. If that is also refused, then one of the parents will have to move to Canada ahead of the rest of the family to sponsor the child for PR. That parent must remain in Canada while the application is processed. Once PR is approved, the child will be able to come to Canada. Processing of the application will likely take around 8 months. So the short answer is that if you have the baby outside of Canada, there's a chance one of the parents may have to live separately from the rest of the family for a better part of a year to obtain PR status for the child and allow the child to come to Canada.