Interference Measurement Campaign in Sub-GHz Bands 2025
Explore the details of a planned interference measurement campaign focusing on sub-GHz bands in 2025. The document discusses the motivation behind the campaign, planned hardware setup, next steps including tool development and parameter extraction, and references to existing interference models. Author: Joerg Robert from FAU/Fraunhofer IIS.
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Mar. 2025 doc.: IEEE 802.19-25/0016r0 Planned Interference Measurements Date: 2025-03-13 Authors: Name Joerg ROBERT Affiliations FAU / Fraunhofer IIS Address Phone email joerg.robert@ieee.org Notice: This document has been prepared to assist IEEE 802.19. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Submission Slide 1 Joerg Robert, FAU / Fraunhofer IIS
Mar. 2025 doc.: IEEE 802.19-25/0016r0 Motivation The interference model in [1] was published in 2018 But: Spectrum use in license exempt band has increased New systems have been introduced Spatial information is unknown No information on different environments Impact of antenna height unknown New measurement campaign focusing on sub-GHz Submission Slide 2 Joerg Robert, FAU / Fraunhofer IIS
Mar. 2025 doc.: IEEE 802.19-25/0016r0 Planned Hardware Setup Pre- Processing 2-Input SDR Frontend Bandpass filters to avoid non-linear effects in case of strong signals outside the desired frequency band At least two synchronized inputs to obtain spatial information Submission Slide 3 Joerg Robert, FAU / Fraunhofer IIS
Mar. 2025 doc.: IEEE 802.19-25/0016r0 Next Steps Definition of file storage format keeping privacy constraints into account (no exchange of raw IQ data) Development of tools for automatic signal recognition and classification Planning and execution of measurement campaigns Parameter extraction for updated interference model Planned time-frame is 6 month Submission Slide 4 Joerg Robert, FAU / Fraunhofer IIS
Mar. 2025 doc.: IEEE 802.19-25/0016r0 References [1] J. Robert, S. Rauh, H. Lieske and A. Heuberger, "IEEE 802.15 Low Power Wide Area Network (LPWAN) PHY Interference Model," 2018 IEEE International Conference on Communications (ICC), Kansas City, MO, USA, 2018 Submission Slide 5 Joerg Robert, FAU / Fraunhofer IIS
