SDN-Based UPF for Mobile Backhaul Network Slicing

Jose Costa-Requena, Aapo Poutanen, Serdar Vural, George Kamel, Chris Clark, Shourov Kumar Roy

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

9 Citations (Scopus)
351 Downloads (Pure)


A major challenge in future mobile networks is how to fulfil the requirements set for 5G networks in terms of latency and throughput. 3GPP has defined a new architecture based on virtualization and Software Defined Networks (SDN) supporting network slices that can fulfil those requirements. In this paper, we present the first realization of the new 5G user plane function (UPF) component that supports SDN and provides optimized transport for reducing latency as required in 5G networks. The proposed UPF is the cornerstone for using different data transport strategies adapted to the needs of different verticals, such as Ultra Reliable Low Latency Communications (URLLC) services that require a separate network slice providing an optimized transport for URLLC applications. The paper also discusses how to best migrate from legacy 4G user plane to 5G UPF, so as to ensure a reasonable transition to 5G. In doing so, the objective is not to meet short-term needs but to fulfill the future latency and throughput requirements of emerging applications, and also to provide first performance results of UPF in a realistic testbed environment.1

Original languageEnglish
Title of host publication2018 European Conference on Networks and Communications, EuCNC 2018
Place of PublicationUnited States
Number of pages6
ISBN (Electronic)978-1-5386-1478-5
ISBN (Print)978-1-5386-1479-2
Publication statusPublished - 20 Aug 2018
MoE publication typeA4 Article in a conference publication
EventEuropean Conference on Networks and Communications - Ljubljana, Slovenia
Duration: 18 Jun 201821 Jun 2018

Publication series

NameEuropean Conference on Networks and Communications
ISSN (Electronic)2575-4912


ConferenceEuropean Conference on Networks and Communications
Abbreviated titleEuCNC


  • 5GaaS
  • Network Slicing
  • UPF

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