Gui, Y; Loh, T H (2023) A Realisation of Channel Emulation in a Reverberation Chamber method for Over-the-Air Compliance Testing in Support of 3GPP Standardisation. In: 2023 17th European Conference on Antennas and Propagation (EuCAP), 26-31 March 2023, Florence, Italy.

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Abstract

The inherent long decay power delay profile (PDP) in the reverberation chamber (RC) is a major challenge for accurate channel emulation of 3GPP 5G channel model which is widely used in performance test of the physical layer. To tackle this challenge, we propose in this paper a novel enhanced two-phase “closed-loop” approach consisting of (i) a channel measuring phase and (ii) a channel model synthesis phase. The channel measurement phase is used to capture the wireless channel of the RC. In the channel model synthesis phase, an additional IQ signal convolution process is introduced prior the IQ signal passes through the channel emulator (CE). This process filters the IQ signal by an equalizer filter derived from the measured channel impulse response (CIR) of the RC obtained in channel measurement phase. From actual measurement results obtained in the RC at the UK National Physical Laboratory (NPL), the proposed approach is proven that able to effectively simulate typical 3GPP 5G channel model even with a relatively low-cost equipment setup.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Electromagnetics > Wireless Communications
Divisions:	Electromagnetic & Electrochemical Technologies
Identification number/DOI:	10.23919/EuCAP57121.2023.10133723
Last Modified:	31 Jan 2024 15:12
URI:	https://eprintspublications.npl.co.uk/id/eprint/9916