| Texto completo | |
| Autor(es): |
Silveira, Lucas B. D.
;
de Resende, Henrique C.
;
Both, Cristiano B.
;
Marquez-Barja, Johann M.
;
Silvestre, Bruno
;
Cardoso, Kleber, V
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Computer Networks; v. 216, p. 15-pg., 2022-10-24. |
| Resumo | |
Fifth-generation (5G) networks enable a variety of use cases that require differentiated connectivity, e.g., Ultra-Reliable and Low-Latency Communications (URLLC), enhanced Mobile Broadband (eMBB), and massive Machine Type Communication (mMTC). To explore the full potential of these use cases, it is mandatory to understand the communication along with the 5G network segments and architecture components. User Equipment (UE), Radio Access Network (RAN), and 5G Core (5GC) are the main components that support these new network concepts and paradigms. 3rd Generation Partnership Project has recently published Release 16, including the protocols used to communicate between RANs and 5GC, i.e., Non-Access Stratum (NAS) and NG Application Protocol (NGAP). The main goal of this work is to present a comprehensive tutorial about NAS and NGAP specifications using a didactic and practical approach. The tutorial describes the protocol stacks and aspects of the functionality of these protocols in 5G networks, such as authentication and identification procedures, data session establishment, and resource allocation. Moreover, we review the message flows related to these protocols in UE and Next Generation Node B (gNodeB) registration. To illustrate the concepts presented in the tutorial, we developed the my5G Tester: a 5GC tester that implements NAS and NGAP for evaluating three open-source 5GC projects using a black-box testing methodology. (AU) | |
| Processo FAPESP: | 20/05182-3 - PORVIR-5G: programabilidade, orquestração e virtualização em redes 5G |
| Beneficiário: | José Marcos Silva Nogueira |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 18/23097-3 - SFI2: fatiamento de infraestruturas de internet do futuro |
| Beneficiário: | Tereza Cristina Melo de Brito Carvalho |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 20/05127-2 - SAMURAI: núcleo 5G inteligente e integração de múltiplas redes de acesso |
| Beneficiário: | Aldebaro Barreto da Rocha Klautau Junior |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |