Temporary Resident Visa (TRV), is also known as a visitor visa. It is an official document in your passport,issued by a Canadian visa office to show that you have met the requirements for admission to Canada as a temporary resident. If you're from a visa-required country, you will need a Temporary Resident Visa (TRV) to enter Canada.
If your Temporary Resident Visa (TRV) has expired and you have received your new/extended study permit from IRCC, you are eligible to apply for a new TRV inside Canada.