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Publicação
AIRMON: análise automática de mensagens LTE
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Resumo(s)
Esta dissertação enquadra-se num estágio na empresa TMN. Neste foram abordados um conjunto de conceitos inerentes às redes de comunicações móveis, nomeadamente às redes 4G. No estudo realizado foi dado especial ênfase ao LTE e à interface de comunicação rádio entre o dispositivo móvel e a rede.
Os objetivos estabelecidos foram claros. Conhecer toda a rede móvel 4G da TMN para posteriormente poder contribuir na resolução de problemas que surjam no futuro, assim como desenvolver uma aplicação gráfica capaz de ajudar as equipas de manutenção na análise de inconsistências e testes de desempenho na rede 4G. Para tal, foram estudados dois tipos de protocolos: o NAS e o RRC.
A aplicação elaborada (AirMon) é capaz de capturar um conjunto de mensagens associadas a esses protocolos e as descodificar, retornando ao utilizador a informação obtida numa interface amigável. A aplicação foi desenvolvida na linguagem Java e esta foi posteriormente comparada face a outras existentes no mercado.
This work is part of a traineeship program performed at the company TMN. The main scope of the work made was the mobile telecommunications 4G technology concepts, giving great importance to the radio interface between the mobile user equipment and the network. The objectives were clear, understand the TMN 4G mobile network in order to assist in future problem solving situations, as well as developing a software able to help other team members on the maintenance and analyses of problems that may occur and the overall performance tuning of the 4G Mobile Network. For that, among others, the NAS and RRC protocols were further investigated. The software developed (AirMon) is able to capture a set of messages associated with those protocols, decode them, leaving to the user a set of information displayed in a user friendly interface. It was developed in the Java programming language and later reviewed among side existing commercial software.
This work is part of a traineeship program performed at the company TMN. The main scope of the work made was the mobile telecommunications 4G technology concepts, giving great importance to the radio interface between the mobile user equipment and the network. The objectives were clear, understand the TMN 4G mobile network in order to assist in future problem solving situations, as well as developing a software able to help other team members on the maintenance and analyses of problems that may occur and the overall performance tuning of the 4G Mobile Network. For that, among others, the NAS and RRC protocols were further investigated. The software developed (AirMon) is able to capture a set of messages associated with those protocols, decode them, leaving to the user a set of information displayed in a user friendly interface. It was developed in the Java programming language and later reviewed among side existing commercial software.
Descrição
Mestrado em Engenharia Eletrotécnica e de Computadores - Área de Especialização de Telecomunicações
Palavras-chave
LTE 4G E-UTRAN RRC NAS LTE-Uu
Contexto Educativo
Citação
Editora
Instituto Politécnico do Porto. Instituto Superior de Engenharia do Porto