Divide and Cache: A Novel Control Plane Framework for Private 5G Networks

Taeho Park, Hochan Lee, Heewon Kim, Subin Han, Taeyun Kim, Sangheon Pack

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

To support a wide range of vertical services in fifth-generation (5G), a concept of private 5G has gained a great attention. Even though several deployment models for private 5G have been reported in the literature, they have not fully utilized the benefit of modularized control plane (CP) network functions (NFs) for better performance and cost efficiency. In addition, their qualitative and quantitative analysis has not been conducted yet. In this paper, we propose a novel CP framework for private 5G dubbed divide and cache (D&C). In D&C, the dependency and frequency of CP NFs are first analyzed based on the 3rd generation partnership project (3GPP) specification. Based on the analysis results, NFs are split into on-premise and edge/public clouds to balance the tradeoff between performance and cost. Also, a new NF called NF profile cache function (NFPCF) is built in on-premise to mitigate the signaling overhead. We implemented D&C over a private 5G testbed using an open-source software (i.e., free5GC). Evaluation results demonstrate that D&C can achieve 19% lower deployment cost at the expense of slightly increased latency compared to the existing model.

Original languageEnglish
Title of host publication2023 IEEE 20th Consumer Communications and Networking Conference, CCNC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages417-422
Number of pages6
ISBN (Electronic)9781665497343
DOIs
Publication statusPublished - 2023
Event20th IEEE Consumer Communications and Networking Conference, CCNC 2023 - Las Vegas, United States
Duration: 2023 Jan 82023 Jan 11

Publication series

NameProceedings - IEEE Consumer Communications and Networking Conference, CCNC
Volume2023-January
ISSN (Print)2331-9860

Conference

Conference20th IEEE Consumer Communications and Networking Conference, CCNC 2023
Country/TerritoryUnited States
CityLas Vegas
Period23/1/823/1/11

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

  • Private 5G
  • cache
  • control plane
  • free5GC
  • open-source software testbed

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

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