WiFi hotspot keep disconnecting

I connect to the internet on my acer predator which is a windows PC, using my iPhone XR hotspot, but, internet keeps disconnecting every now and then. What’s the problem ? I have searched for the possible solution if I’m case there is a problem with the windows PC, and everything turned out to be fine with the PC. Now, since pc is fine, the problem is with the iPhone software. Is there a way to resolve it at consumer level? Or we have to wait for the update?