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LatSeq: A Low-Impact Internal Latency Measurement Tool for OpenAirInterface

Abstract : Building a thorough understanding of latency in the 5G-NR RAN requires a reliable system level measurement tool able to collect relevant data in a broad range of situations. For this purpose, we propose LatSeq, an open-source software extension aimed at providing the OpenAirInterface Base Station with internal latency measurement capabilities. This paper discusses its design choices and evaluates its fitness for purpose in a first baseline usage scenario. We demonstrate the low impact of LatSeq on the observed system, the usefulness of statistics it enables and the relevance of its capability of tracing individual packet journeys inside the base station.
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Contributor : Flavien Ronteix--Jacquet <>
Submitted on : Tuesday, June 1, 2021 - 10:35:39 AM
Last modification on : Wednesday, July 21, 2021 - 7:40:02 AM
Long-term archiving on: : Thursday, September 2, 2021 - 6:23:03 PM


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Flavien Ronteix--Jacquet, Alexandre Ferrieux, Isabelle Hamchaoui, Stephane Tuffin, Xavier Lagrange. LatSeq: A Low-Impact Internal Latency Measurement Tool for OpenAirInterface. 2021 IEEE Wireless Communications and Networking Conference (WCNC), Mar 2021, Nanjing, France. pp.1-6, ⟨10.1109/WCNC49053.2021.9417345⟩. ⟨hal-03244279⟩



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