Work Permit

I recently got my closed work permit approved from outside Canada based on a valid LMIA. When I applied for the work permit, I was in Canada as a visitor. Right now, I only have a valid TRV (visitor visa) in my passport, but the work permit approval has already been issued. I am planning to travel to Mexico and return to Canada. Can I enter Canada using my valid TRV and get my work permit issued at the port of entry upon arrival? Has anyone been in a similar situation where their work permit was approved outside Canada but they only had a valid TRV before travelling? Any advice or experiences