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An Enhanced Beam Index Detection Scheme Robust to Timing Offset in a 5G Software Modem

Authors
Dawoon LimJuyeop Kim
Issue Date
Feb-2023
Publisher
Institute of Electrical and Electronics Engineers Inc.
Citation
2023 International Conference on Electronics, Information, and Communication, ICEIC 2023
Journal Title
2023 International Conference on Electronics, Information, and Communication, ICEIC 2023
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/152055
DOI
10.1109/ICEIC57457.2023.10049855
ISSN
2574-1403
2767-7699
Abstract
Unlike the Long Term Evolution (LTE), the 5G system faces an additional issue of detecting appropriate beams in a cell search phase. This paper investigates the effect of residual Symbol Timing Offset (rSTO) on the beam index detection in the 5G system and proposes a practical scheme that compensates for the effect of the rSTO in a SoftWare (SW) Modem environment. For evaluating the performance at an implementation level, we realize the proposed scheme on a real-time testbed and conduct experiments with commercial 5G base stations. The experimental results prove that the proposed scheme practically improves the detection probability with proper complexity. © 2023 IEEE.
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