Implementation of platform for long‐term evolution cell perspective resource utilization analysis

As wireless communication continues to develop in limited frequency resource environments, it is becoming important to identify the state of spectrum utilization and predict the amount needed in future. It is essential to collect reliable information for data analysis. This paper introduces a platfo...

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Bibliographic Details
Published inETRI journal Vol. 43; no. 2; pp. 232 - 245
Main Authors Um, Jungsun, Kim, Igor, Park, Seungkeun
Format Journal Article
LanguageEnglish
Published Electronics and Telecommunications Research Institute (ETRI) 01.04.2021
한국전자통신연구원
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Summary:As wireless communication continues to develop in limited frequency resource environments, it is becoming important to identify the state of spectrum utilization and predict the amount needed in future. It is essential to collect reliable information for data analysis. This paper introduces a platform that enables the gathering of the scheduling information of a long‐term evolution (LTE) cellular system without connecting to the network. A typical LTE terminal can confirm its assigned resource information using the configuration parameters delivered from a network. However, our platform receives and captures only the LTE signal over the air and then enables the estimation of the data relevant to scheduling for all terminals within an LTE cell. After extracting the control channel signal without loss from all LTE subframes, it detects valid downlink control information using the proposed algorithm, which is based on the error vector magnitude of depatterned symbols. We verify the reliability of the developed platform by comparing it with real data from mobile phones and service operators. The average difference in resource block utilization is only 0.28%.
Bibliography:Funding information
This work was supported by an Institute of Information & Communications Technology Planning & Evaluation (IITP) grant funded by the Korea government (MSIT) (2017‐0‐00109, Development of Frequency Analysis Technology for the Virtuous Circulation of Radio Resource).
https://doi.org/10.4218/etrij.2019-0475
ISSN:1225-6463
2233-7326
DOI:10.4218/etrij.2019-0475