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Modified Uplink Adaptive Algorithm for PRACH on 5G-NR Systems

Authors
Hong S.Kim C.Kim B.Jang B.Lee D.Im S.
Issue Date
Apr-2020
Publisher
Institute of Electrical and Electronics Engineers Inc.
Keywords
3GPP; DCT-LMS; ICS Repeater; On-Channel Repeater; PRACH
Citation
2020 International Conference on Electronics, Information, and Communication, ICEIC 2020
Journal Title
2020 International Conference on Electronics, Information, and Communication, ICEIC 2020
URI
http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/36106
DOI
10.1109/ICEIC49074.2020.9051227
ISSN
0000-0000
Abstract
In a 3GPP-based system such as 4G-LTE and 5G-NR, a UE transmits a PRACH (Preamble Random Access Channel) signal in the initial connection with a base station. As a result, the interference canceling repeater suddenly receives a high-power narrow-band signal continuously in a no user signal state, so that the interference cancellation algorithm may malfunction and the system is likely to cause oscillation. In this paper, we propose an adaptive algorithm that can maintain the interference cancellation function without oscillation even for narrow band input with an abrupt change of the spectrum and power. © 2020 IEEE.
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College of Information Technology (Department of IT Convergence)
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