Virtualización de una central 4G con software de código abierto en el laboratorio de comunicaciones de la FIE.

Abstract

The objective of this degree work was to virtualize a 4G central with open source software in the FIE´s communications laboratory. Through a literature review, we proceeded to study the art of 4G mobile network technology, in this study information was obtained about the structure and operation of 4G mobile networks based on 3GPP Releases. In the same way, the network functions virtualization technique was investigated with the help of different open source software, In this research, the Open Air Interface OAI software was chosen to carry out this project. in which the entities known as EPC, eNB and UE were virtualized with the help of OAI software. For the second scenario, an SDR equipment was used, specifically the USRPB210, the same one that fulfilled the radio functions of E-UTRAN of the 4G network. For the validation of these two scenarios, different tests were carried out. For the first one, connectivity tests were carried out by the UE towards the 4G network itself and towards external networks. While for the validation of the second scenario, the E8600B spectrum analyzer is used to measure the different parameters of the E-UTRAN downlink. The results obtained were successful since for the first scenario there was connectivity of the UE with internal and external networks, while for the second scenario the parameters of power, bandwidth and transmission of control data were found in the admissible values. It is concluded that 4G networks continue to undergo different improvements and it is recommended to investigate information on the structure of 4G networks in reliable sources.