Deep Learning-Based Modeling of 5G Core Control Plane for 5G Network Digital Twin

Digital twin serves as a crucial facilitator in the advancement and implementation of emerging technologies within 5G and beyond networks. However, the intricate structure and diverse functionalities of the existing 5G core network, especially the control plane, present challenges in constructing co...

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Bibliographic Details
Published in:IEEE transactions on cognitive communications and networking 2024-02, Vol.10 (1), p.238-251
Main Authors: Tao, Zhenyu, Guo, Yongliang, He, Guanghui, Huang, Yongming, You, Xiaohu
Format: Article
Language:English
Subjects:
5G core
5G mobile communication
Concurrency
control plane
Data models
Decoding
Deep learning
Digital twin
Digital twins
LSTM
Messages
Modelling
Network control
New technology
Programming
transformer
Transformer cores
Transformers
Uplink
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Summary:Digital twin serves as a crucial facilitator in the advancement and implementation of emerging technologies within 5G and beyond networks. However, the intricate structure and diverse functionalities of the existing 5G core network, especially the control plane, present challenges in constructing core network digital twins. In this paper, we propose two novel data-driven architectures for modeling the 5G control plane and implement corresponding deep learning models, namely 5GC-Seq2Seq and 5GC-former, based on the Vanilla Seq2Seq model and Transformer decoder respectively. We also present a solution enabling the interconversion of signaling messages and length-limited vectors to construct a dataset. The experiments are based on 5G core network signaling messages collected by the Spirent C50 network tester, encompassing various procedures such as registration, handover, and PDU sessions. The results show that 5GC-Seq2Seq achieves a 99.997% F1-score (a metric measuring the accuracy of positive samples) in single UE scenarios with a simple structure, but exhibits significantly reduced performance in handling concurrency. In contrast, 5GC-former surpasses 99.999% F1-score while maintaining robust performance under concurrent UE scenarios by constructing a more complex and highly parallel model. These findings validate that our method accurately replicates the principal functionalities of the 5G core network control plane.
ISSN:2332-7731
2332-7731
DOI:10.1109/TCCN.2023.3324634