NGMN Publication

Project RAN Evolution: Backhaul and Fronthaul Evolution

Mobile network operators (MNOs) are seeking efficient ways to increase the overall capacity coverage of their networks. NGMN took the lead in the definition of new RAN architectures and in the different options to improve the overall efficiency of the RAN evolution process. Concepts such as C-RAN, CoMP Carrier Aggregation and Multi-RAN address improved spectrum and resource utilizations for various scenarios. The discussion on RAN evolution also needs to address the surge in expected transport capacity, whether it is for the backhaul or the fronthaul. This paper discusses the different transport options and the relationship with traditional and emerging RAN topologies.