Are cellular operators running out of spectrum?
There is a common opinion in the industry that 3G/HSPA mobile data networks are congested because operators are running out of their spectrum resources. Considering the traffic demand, likely traffic geo-distribution, daily profile and the constrains of HSPA and LTE technology our models show that in typical mature mobile telecommunications markets spectrum scarcity alone does not cause a capacity crunch yet.
LTE - turning point in telecom infrastructure sourcing models
The budget of operators’ LTE investments is being squeezed by the challenging mobile data business case. In order to make economic sense, the cost of rolling out an LTE network cannot be more than a fraction of the money that has been spent on 3G rollouts. Moreover, the price of incremental capacity upgrades needs to be at least ten times lower than the typical price of adding comparable capacity to HSPA networks.