It all comes back to backhaul – solutions supporting superior end-to-end QoE in heterogeneous network deployments
Adding radio network capacity and coverage through the deployment of small cells as part of a heterogeneous network requires a higher degree of backhaul flexibility. Operators should strike a balance between installing sites in the right place with sufficient backhaul capacity and delay, and the need to deliver additional capacity and coverage in the right timeframe and at the right cost.
Backhaul solutions should not limit the performance of heterogeneous networks, and must be cost-efficient and easy to install. Network performance should be uniform across the entire network, so that users do not experience a drop in performance when covered by small cells – resulting in a negative QoE perception of the whole network and operator brand.
Backhaul availability determines the feasible placements of cells, and impacts installation costs and the time needed for site acquisition and installation. When deploying a new radio site, operators will need a well-defined variety of backhaul options and combinations of complementary technologies to meet the business case. Adopting a holistic perspective when evolving today’s networks to heterogeneous networks will help operators address network evolution efficiently.