Time Offset Correction and Frequency Offset Correction in 5G Channel Estimation
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Journal Title
Journal ISSN
Volume Title
Sähkötekniikan korkeakoulu |
Master's thesis
Authors
Date
2023-08-21
Department
Major/Subject
Micro and Nano Electronic Circuit Design
Mcode
ELEC3036
Degree programme
Master’s Programme in Electronics and Nanotechnology (TS2013)
Language
en
Pages
63 + 7
Series
Abstract
With the introduction of 5G New Radio (5G NR), certain requirements for speed and latency must be satisfied. For 5G NR, several technologies are required. Beamforming is one among them. This process entails producing a beam with the correct direction and energy for the targeted UE while minimizing its impact on other users. In order to regulate the beam, channel estimate must be often done. Time offset correction (TOC) and frequency offset correction (FOC) are essential steps in the channel estimation process to minimize inter-symbol interference (ISI) and frequency offset brought on by the local oscillator's error. This thesis introduced a form of hardware architecture for UE-specific TOC for sounding reference signal (SRS) to estimate channel effectively. UE-specific TOC for SRS based channel estimation is implemented on hardware to fulfil the high requirements of 5G since hardware could provide good performance. The simula-tion results show that, under ideal circumstances, the current design functioned well. The simulation of this project uses the modelling program VCS simulation software. Synopsys Design Compiler is utilized to compile the code. Additionally, a legacy-TOC that was previously in place for demodulation reference signal (DMRS) based channel estimation was found to be less complex than the UE-specific TOC.Description
Supervisor
Ryynänen, JussiThesis advisor
Shamani, FaridKeywords
5G, Channel Estimation, TOC, FOC, IP, RTL