Migración de la arquitectura D-RAN a C-RAN en radiobases del sector Intercambiador Carapungo

Abstract

The exponential growth brought by new generations of mobile telephony is focused on maximizing traffic, dramatically improving the user experience of services and applications. Therefore, to carry out these objectives, the network needs to converge to a higher bandwidth, optimize its resources and offer higher speeds. Users of a cellular mobile network, in addition to the unlimited use of social media, now seek video transmission and download experience in real time, this proves to be an unsustainable pressure on the current existing RAN (radio access network). This technical degree project aims to demonstrate the improvement in the key performance indicators or KPI of one or more base stations, when implementing an architecture migration plan. The data provided by the different simulation scenarios allows to demonstrate the benefits of migrating from a traditional distributed radio access architecture (D-RAN) to a state of the art centralized architecture (C-RAN). The Carapungo interchange is chosen as the proposed migration site for study. The contemplated hardware (equipment) and software (virtual agents) requirements are described in detail, with special emphasis on the Common Public Radio Interface (CPRI) and the speed dimensioned according to its requirements. The data produced by the simulation show a global average gain of 4.27%, going from an efficiency in D-RAN of 93.45% to 97.72% in the C-RAN architecture. This gain considers that, to achieve better efficiency, the network topology will base its processing on centralized BBUs physically located in a Data Center. The BBU Pool applies the robust algorithms and strategies necessary to control parameters such as transmission power, user allocation and data rates. The efficiency and performance improvement of the coordinated pool are greater in advantages compared to a distributed RAN.