ETSI ISG MAT: Bridging Multiple Access Techniques Research and 6G Standardisation

Dheeraj Raja Kumar; Mert Ozates; Yong Jin Daniel Kim; David Vargas; Onur Dizdar; Fehmi Emre Kadan; Carles Antón-Haro; Sebastian Wagner; Bruno Clerckx; Malte Schellmann; Xavier Mestre; H. M. Furqan; Kenza Abela; Shaima Abidrabbu

arXiv · 2607.24226

ETSI ISG MAT: Bridging Multiple Access Techniques Research and 6G Standardisation

Dheeraj Raja Kumar·Mert Ozates·Yong Jin Daniel Kim·David Vargas·Onur Dizdar·Fehmi Emre Kadan·Carles Antón-Haro·Sebastian Wagner·Bruno Clerckx·Malte Schellmann·Xavier Mestre·H. M. Furqan·Kenza Abela·Shaima Abidrabbu

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Abstract

Improved spectral efficiency and inter-user interference mitigation are important aspects of IMT-2030 and the ongoing 3GPP 6G study. ETSI established the Industry Specification Group on Multiple Access Techniques (ISG MAT) as a research and pre-standardisation activity to build wider consensus on downlink MAT for 3GPP-based 6G systems. Its first report, ETSI GR MAT 001 V1.1.1, provides a standards-oriented comparison of 3GPP-specified techniques, including OMA, MU-MIMO, and MUST, with candidate techniques comprising power-domain NOMA, RSMA, and cache-aided MU-MIMO. The report identifies operating conditions in which candidate MAT can improve spectral efficiency and assesses implications for transceiver processing, network assistance information, and reference-signal requirements. Ongoing work includes realistic 5G NR link-level evaluations and the study of MAT for non-terrestrial networks, providing timely technical evidence for 3GPP 6G standardisation discussions.

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Dheeraj Raja Kumar, Mert Ozates, Yong Jin Daniel Kim, David Vargas, Onur Dizdar, Fehmi Emre Kadan, Carles Antón-Haro, Sebastian Wagner, Bruno Clerckx, Malte Schellmann, Xavier Mestre, H. M. Furqan, Kenza Abela, Shaima Abidrabbu. 2026-07-27. ETSI ISG MAT: Bridging Multiple Access Techniques Research and 6G Standardisation. https://arxiv.org/abs/2607.24226

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