Localizing Basestations From End-User Timing Advance Measurements

Although mobile communication has become ubiquitous in our modern society, operators typically treat the underlying networking infrastructure in a secretive manner. However, detailed topology information is a key enabler for operator benchmarking and can serve as ground-truth data for system-level s...

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Main Authors: Lukas Eller, Vaclav Raida, Philipp Svoboda, Markus Rupp
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9672133/
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author Lukas Eller
Vaclav Raida
Philipp Svoboda
Markus Rupp
author_facet Lukas Eller
Vaclav Raida
Philipp Svoboda
Markus Rupp
author_sort Lukas Eller
collection DOAJ
description Although mobile communication has become ubiquitous in our modern society, operators typically treat the underlying networking infrastructure in a secretive manner. However, detailed topology information is a key enabler for operator benchmarking and can serve as ground-truth data for system-level simulations or user equipment localization schemes. Still, existing approaches for base station localization that are either based on received signal strength or on the spatial distribution of measurements are not accurate enough for such use cases. Accordingly, we propose a localization scheme that operates on end-user measurements of the 4G & 5G timing advance parameter, which acts as a quantized distance measure between the user equipment and the base station. By directly incorporating GPS noise, multipath propagation, and quantization into our stochastic system model, we obtain an estimator that offers a reliable measure of confidence and requires only the configuration of two hyperparameters with a dedicated physical interpretation. We evaluate our approach using a set of drive-test measurements consisting of 190 LTE eNodeBs with ground-truth locations confirmed by an Austrian mobile network operator. Our selective estimator can either operate without prior knowledge, resulting in mean distance errors of below 100 m, or in a classification setup, where it correctly identifies up to 95% of eNodeBs from a set of candidate cell tower locations. To allow for reproducibility, we make our dataset and a reference implementation publicly available.
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spelling doaj.art-635acf61cb0d47c8bef9aa5f668b1df92022-12-21T19:33:13ZengIEEEIEEE Access2169-35362022-01-01105533554410.1109/ACCESS.2022.31408259672133Localizing Basestations From End-User Timing Advance MeasurementsLukas Eller0https://orcid.org/0000-0002-1087-0953Vaclav Raida1https://orcid.org/0000-0001-5166-3945Philipp Svoboda2https://orcid.org/0000-0002-2277-0378Markus Rupp3https://orcid.org/0000-0001-9003-7779Institute of Telecommunications, Technische Universität Wien, Vienna, AustriaInstitute of Telecommunications, Technische Universität Wien, Vienna, AustriaInstitute of Telecommunications, Technische Universität Wien, Vienna, AustriaInstitute of Telecommunications, Technische Universität Wien, Vienna, AustriaAlthough mobile communication has become ubiquitous in our modern society, operators typically treat the underlying networking infrastructure in a secretive manner. However, detailed topology information is a key enabler for operator benchmarking and can serve as ground-truth data for system-level simulations or user equipment localization schemes. Still, existing approaches for base station localization that are either based on received signal strength or on the spatial distribution of measurements are not accurate enough for such use cases. Accordingly, we propose a localization scheme that operates on end-user measurements of the 4G & 5G timing advance parameter, which acts as a quantized distance measure between the user equipment and the base station. By directly incorporating GPS noise, multipath propagation, and quantization into our stochastic system model, we obtain an estimator that offers a reliable measure of confidence and requires only the configuration of two hyperparameters with a dedicated physical interpretation. We evaluate our approach using a set of drive-test measurements consisting of 190 LTE eNodeBs with ground-truth locations confirmed by an Austrian mobile network operator. Our selective estimator can either operate without prior knowledge, resulting in mean distance errors of below 100 m, or in a classification setup, where it correctly identifies up to 95% of eNodeBs from a set of candidate cell tower locations. To allow for reproducibility, we make our dataset and a reference implementation publicly available.https://ieeexplore.ieee.org/document/9672133/Bayesian estimationbase stationcellular networkseNodeBinferencelocalization
spellingShingle Lukas Eller
Vaclav Raida
Philipp Svoboda
Markus Rupp
Localizing Basestations From End-User Timing Advance Measurements
IEEE Access
Bayesian estimation
base station
cellular networks
eNodeB
inference
localization
title Localizing Basestations From End-User Timing Advance Measurements
title_full Localizing Basestations From End-User Timing Advance Measurements
title_fullStr Localizing Basestations From End-User Timing Advance Measurements
title_full_unstemmed Localizing Basestations From End-User Timing Advance Measurements
title_short Localizing Basestations From End-User Timing Advance Measurements
title_sort localizing basestations from end user timing advance measurements
topic Bayesian estimation
base station
cellular networks
eNodeB
inference
localization
url https://ieeexplore.ieee.org/document/9672133/
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AT philippsvoboda localizingbasestationsfromendusertimingadvancemeasurements
AT markusrupp localizingbasestationsfromendusertimingadvancemeasurements