Assessment of Candidate Technology ETSI: DECT-2020 New Radio

Abstract

A number of IMT-2020 candidate technologies including the 3GPP have been submitted to the ITU-R. All candidate technologies are expected to meet the minimum performance requirements set by ITU-R for getting recommended as IMT-2020. In this paper, based on the submissions for Digital Enhanced Cordless Telecommunication (DECT-2020 NR) technology, we have evaluated the performances of latency, reliability and connection density as per ITU-R evaluation methodology. We found that the latency requirements can only be met using half-slot transmissions or HARQ-less full-slot transmission in contrary to the results submitted in the self-evaluation report of the DECT-2020 NR. Due to lack of details in the submissions; like the channel and interference modeling between device to device relaying, scheduling and control of relay propagation direction, we could not conclude whether the DECT-2020 NR can meet the minimum performance requirement of connection density of IMT-2020.