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5G Campus Networks: A First Measurement Study

IEEE access, 2021, Vol.9, p.121786-121803 [Peer Reviewed Journal]

Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2021 ;ISSN: 2169-3536 ;EISSN: 2169-3536 ;DOI: 10.1109/ACCESS.2021.3108423 ;CODEN: IAECCG

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  • Title:
    5G Campus Networks: A First Measurement Study
  • Author: Rischke, Justus ; Sossalla, Peter ; Itting, Sebastian ; Fitzek, Frank H. P. ; Reisslein, Martin
  • Subjects: 5G measurements ; 5G mobile communication ; Antenna measurements ; core delay ; delay variation ; Delays ; Downloading ; Generators ; Industrial applications ; Long Term Evolution ; Microprocessors ; Networks ; one-way delay ; Outliers (statistics) ; packet latency ; Packet loss ; Radio access networks ; Robot control ; standalone (SA) network
  • Is Part Of: IEEE access, 2021, Vol.9, p.121786-121803
  • Description: A 5G campus network is a 5G network for the users affiliated with the campus organization, e.g., an industrial campus, covering a prescribed geographical area. A 5G campus network can operate as a so-called 5G non-standalone (NSA) network (which requires 4G Long-Term Evolution (LTE) spectrum access) or as a 5G standalone (SA) network (without 4G LTE spectrum access). 5G campus networks are envisioned to enable new use cases, which require cyclic delay-sensitive industrial communication, such as robot control. We design a rigorous testbed for measuring the one-way packet delays between a 5G end device via a radio access network (RAN) to a packet core with sub-microsecond precision as well as for measuring the packet core delay with nanosecond precision. With our testbed design, we conduct detailed measurements of the one-way download (downstream, i.e., core to end device) as well as one-way upload (upstream, i.e., end device to core) packet delays and losses for both 5G SA and 5G NSA hardware and network operation. We also measure the corresponding 5G SA and 5G NSA packet core processing delays for download and upload. We find that typically 95% of the SA download packet delays are in the range from 4-10 ms, indicating a fairly wide spread of the packet delays. Also, existing packet core implementations regularly incur packet processing latencies up to 0.4 ms, with outliers above one millisecond. Our measurement results inform the further development and refinement of 5G SA and 5G NSA campus networks for industrial use cases. We make the measurement data traces publicly available as the IEEE DataPort 5G Campus Networks: Measurement Traces dataset (DOI 10.21227/xe3c-e968).
  • Publisher: Piscataway: IEEE
  • Language: English
  • Identifier: ISSN: 2169-3536
    EISSN: 2169-3536
    DOI: 10.1109/ACCESS.2021.3108423
    CODEN: IAECCG
  • Source: DOAJ Directory of Open Access Journals
    IEEE Open Access Journals
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