Design and implementation of an xApp integrating FlexRIC with the ns-O-RAN Framework

Taeil Jung; Jaehyung Choi; Geon Kim; Een Kee Hong

doi:10.1109/ICTC66702.2025.11388719

Design and implementation of an xApp integrating FlexRIC with the ns-O-RAN Framework

Taeil Jung
, Jaehyung Choi
, Geon Kim
, Een Kee Hong

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This paper presents the design and implementation of a traffic anomaly detection xApp based on per-UE Key Performance Metric (KPM) monitoring, within an O-RAN-compliant simulation framework. The framework integrates the near-real-time RIC platform FlexRIC from OpenAirInterface (OAI) with the ns-3 simulator, resulting in a unified ns-O-RAN environment. The proposed xApp leverages real-time KPM data to identify abnormal traffic patterns at the UE level, enabling intelligent and fine-grained RAN control. This work demonstrates the feasibility of anomaly detection in simulated O-RAN environments and provides a foundation for evaluating AI-driven RAN control strategies.

Original language	English
Title of host publication	2025 16th International Conference on Information and Communication Technology Convergence, ICTC 2025
Publisher	IEEE Computer Society
Pages	1539-1540
Number of pages	2
ISBN (Electronic)	9798331556785
DOIs	https://doi.org/10.1109/ICTC66702.2025.11388719
Publication status	Published - 2025
Event	16th International Conference on Information and Communication Technology Convergence, ICTC 2025 - , Korea, Republic of Duration: 14 Oct 2025 → 17 Oct 2025

Publication series

Name	International Conference on ICT Convergence
ISSN (Print)	2162-1233
ISSN (Electronic)	2162-1241

Conference

Conference	16th International Conference on Information and Communication Technology Convergence, ICTC 2025
Country/Territory	Korea, Republic of
Period	14/10/25 → 17/10/25

Bibliographical note

Publisher Copyright:
© 2025 IEEE.

Keywords

FlexRIC
Near-RT RIC
ns-O-RAN
O-RAN
xApp

Access to Document

10.1109/ICTC66702.2025.11388719

Cite this

Jung, T., Choi, J., Kim, G., & Hong, E. K. (2025). Design and implementation of an xApp integrating FlexRIC with the ns-O-RAN Framework. In 2025 16th International Conference on Information and Communication Technology Convergence, ICTC 2025 (pp. 1539-1540). (International Conference on ICT Convergence). IEEE Computer Society. https://doi.org/10.1109/ICTC66702.2025.11388719

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title = "Design and implementation of an xApp integrating FlexRIC with the ns-O-RAN Framework",

abstract = "This paper presents the design and implementation of a traffic anomaly detection xApp based on per-UE Key Performance Metric (KPM) monitoring, within an O-RAN-compliant simulation framework. The framework integrates the near-real-time RIC platform FlexRIC from OpenAirInterface (OAI) with the ns-3 simulator, resulting in a unified ns-O-RAN environment. The proposed xApp leverages real-time KPM data to identify abnormal traffic patterns at the UE level, enabling intelligent and fine-grained RAN control. This work demonstrates the feasibility of anomaly detection in simulated O-RAN environments and provides a foundation for evaluating AI-driven RAN control strategies.",

keywords = "FlexRIC, Near-RT RIC, ns-O-RAN, O-RAN, xApp",

author = "Taeil Jung and Jaehyung Choi and Geon Kim and Hong, \{Een Kee\}",

note = "Publisher Copyright: {\textcopyright} 2025 IEEE.; 16th International Conference on Information and Communication Technology Convergence, ICTC 2025 ; Conference date: 14-10-2025 Through 17-10-2025",

year = "2025",

doi = "10.1109/ICTC66702.2025.11388719",

language = "English",

series = "International Conference on ICT Convergence",

publisher = "IEEE Computer Society",

pages = "1539--1540",

booktitle = "2025 16th International Conference on Information and Communication Technology Convergence, ICTC 2025",

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}

Jung, T, Choi, J, Kim, G & Hong, EK 2025, Design and implementation of an xApp integrating FlexRIC with the ns-O-RAN Framework. in 2025 16th International Conference on Information and Communication Technology Convergence, ICTC 2025. International Conference on ICT Convergence, IEEE Computer Society, pp. 1539-1540, 16th International Conference on Information and Communication Technology Convergence, ICTC 2025, Korea, Republic of, 14/10/25. https://doi.org/10.1109/ICTC66702.2025.11388719

Design and implementation of an xApp integrating FlexRIC with the ns-O-RAN Framework. / Jung, Taeil; Choi, Jaehyung; Kim, Geon et al.
2025 16th International Conference on Information and Communication Technology Convergence, ICTC 2025. IEEE Computer Society, 2025. p. 1539-1540 (International Conference on ICT Convergence).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - This paper presents the design and implementation of a traffic anomaly detection xApp based on per-UE Key Performance Metric (KPM) monitoring, within an O-RAN-compliant simulation framework. The framework integrates the near-real-time RIC platform FlexRIC from OpenAirInterface (OAI) with the ns-3 simulator, resulting in a unified ns-O-RAN environment. The proposed xApp leverages real-time KPM data to identify abnormal traffic patterns at the UE level, enabling intelligent and fine-grained RAN control. This work demonstrates the feasibility of anomaly detection in simulated O-RAN environments and provides a foundation for evaluating AI-driven RAN control strategies.

AB - This paper presents the design and implementation of a traffic anomaly detection xApp based on per-UE Key Performance Metric (KPM) monitoring, within an O-RAN-compliant simulation framework. The framework integrates the near-real-time RIC platform FlexRIC from OpenAirInterface (OAI) with the ns-3 simulator, resulting in a unified ns-O-RAN environment. The proposed xApp leverages real-time KPM data to identify abnormal traffic patterns at the UE level, enabling intelligent and fine-grained RAN control. This work demonstrates the feasibility of anomaly detection in simulated O-RAN environments and provides a foundation for evaluating AI-driven RAN control strategies.

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KW - Near-RT RIC

KW - ns-O-RAN

KW - O-RAN

KW - xApp

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DO - 10.1109/ICTC66702.2025.11388719

M3 - Conference contribution

AN - SCOPUS:105035083829

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SP - 1539

EP - 1540

BT - 2025 16th International Conference on Information and Communication Technology Convergence, ICTC 2025

PB - IEEE Computer Society

T2 - 16th International Conference on Information and Communication Technology Convergence, ICTC 2025

Y2 - 14 October 2025 through 17 October 2025

ER -

Design and implementation of an xApp integrating FlexRIC with the ns-O-RAN Framework

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Keywords

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