Requisitos na implementação de redes de transporte para suportar o 5G

Abstract

Advances in digital content bring new challenges to mobile networks, increased bandwidth requirements, reduced latency and high availability drive the need for evolution in today's networks. In order to meet these new demands, regulatory institutes such as the ITU evaluate the use of new radiofrequency spectra. The next generation of networks are the 5G / IMT-2020 interfaces, which aim to support three generic services: Enhanced Mobile Broadband (eMBB), Massive Machine-type Communications (mMTC) and Ultra-Reliable Low-latency Communications (URLLC). Supporting these services brings changes in the architecture of the networks, 3GPP has developed the modular architecture called the NG-RAN. Its implementation can occur centrally or distributed according to the requirements and needs of the carriers. These changes bring direct impacts on the transport networks, responsible for interconnecting the interfaces of the elements of the mobile networks. Divided into Fronthaul, Midhaul and Backhaul, according to the interconnecting elements, they must provide connections with high bandwidth, low latency and high reliability. Understanding the minimum requirements for the transport networks it is possible to begin planning and structuring for the effective deployment of 5G networks.