there are a set of parameters that you could consider as to be have a impact on the mobile network, first of all, the distance to the sender that will effect the DB power, also, you could look into other parameter such as delay, Scalability , route availability, data buffering
As Hamza said + disconnectivity, power, bottlenecks, routing, data forwarding... a lot of other parameters. for me I always care about disconnectivity.
As discussed, there are so many other parameters that affect like interference, network range, choice of proper devices to combat physical obstructions as per local environment etc