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Communication Dans Un Congrès Année : 2023

FlexApp: Flexible and Low-Latency xApp Framework for RAN Intelligent Controller

Chieh-Chun Chen
  • Fonction : Auteur
  • PersonId : 1265327
Mikel Irazabal
  • Fonction : Auteur
  • PersonId : 1265328
Chia-Yu Chang
  • Fonction : Auteur
  • PersonId : 1265329
Alireza Mohammadi
  • Fonction : Auteur
  • PersonId : 1265330
  • IdRef : 27645524X
Navid Nikaein
  • Fonction : Auteur
  • PersonId : 868226

Résumé

RAN openness is a vision for 5G and beyond to avoid unnecessary lock-in effects. In this regard, the O-RAN alliance provides a new architecture with RAN intelligent controller (RIC) for both non-real-time and near-real-time cases, together with running applications, i.e., rApps and xApps. However, two key challenges remain in the current xApp framework: platform lock-in and xApp reusability. Therefore, we introduce a novel FlexApp framework to address both issues, as well as a new E2* interface that consumes less latency and CPU utilization. This new interface speeds up the xApp development process. Our performance evaluation of the FlexApp prototype shows that it can realize scalability and ultra-low latency operations (<10 ms), as well as the capability of two-level abstraction for xApp development.
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Dates et versions

hal-04143039 , version 1 (27-06-2023)

Identifiants

  • HAL Id : hal-04143039 , version 1

Citer

Chieh-Chun Chen, Mikel Irazabal, Chia-Yu Chang, Alireza Mohammadi, Navid Nikaein. FlexApp: Flexible and Low-Latency xApp Framework for RAN Intelligent Controller. ICC 2023, IEEE International Conference on Communications 2023, IEEE, May 2023, Rome, Italy. ⟨hal-04143039⟩

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