Details of 'DGR/MAT-001_classMAT_6G' Work Item

	Work Item Reference	ETSI Doc. Number	STF	Technical Body in Charge		Download Standard
	DGR/MAT-001_classMAT_6G	GR MAT 001		MAT
	Current Status (Click to View Full Schedule)	Latest Version	Cover Date	Standstill		Creation Date
	Publication (2026-01-16)	1.1.1	2026-01-16	View Standstill Information		2025-01-14
	Rapporteur	Technical Officer		Harmonised Standard
	Onur Dizdar	Karen Hughes		No
Title	Multiple Access Techniques (MAT); Classification of Candidate Multiple Access Techniques for 6G and their comparison with specified 3GPP features
Scope and Field of Application	Various Multiple Access Techniques (MAT) have been specified in 3GPP for the downlink LTE and NR physical layer radio interfaces. - 3G based on CDMA, while 4G LTE and 5G NR is based on OFDMA; - MU-MIMO transmissions in 4G and 5G combining OFDMA with SDMA for increased spectral efficiency; and - 4G LTE also specifying Multi-User Superposition Transmission (MUST). Also in there is significant academic literature for different MAT under the name of NOMA, RSMA. However, due to different terminology and different frameworks in existing works, it is often difficult to understand the key differences between specified MAT and new MAT. This work item will study the following aspects for candidate MATs (e.g. OMA, SDMA, NOMA and RSMA): - Definition of baseline architectures and common terminology for candidate MATs; - Classification of candidate MAT based on their main characteristics; and - Gap analysis of candidate MAT with features specified in 3GPP such as MUST (TR 36.859 and RP-160680) and NR demodulation performance evolution (TR 38.878). The above studies will be done for the following two downlink delivery modes: - unicast-only delivery - joint broadcast/multicast and unicast delivery. Additional assumptions for this work item can be found in MAT(25)01_013r1.
Supporting Organizations	BBC, ZTE Corporation, CTTC, VIAVI Solutions, TU Braunschweig IST.hub, Imperial College London

	Keywords	Projects	Clusters	Frequencies	Mandates	Directives
	6G downlink MU-MIMO Physical layer RAN		Wireless Systems
Official Journal
Remarks	2025-12-18 vargas A new draft is uploaded - V 0.0.8 with status: Stable draft - with comment: Inclusion of MAT(25)21005 and revision changes in MAT(25)21004r2 2025-12-08   A new draft is uploaded - V 0.0.7 with status: Early draft - with comment: Inclusion of MAT(25)19003r1 2025-11-25   A new draft is uploaded - V 0.0.6 with status: Early draft - with comment: Inclusion of MAT(25)18004r1 2025-11-21   A new draft is uploaded - V 0.0.5 with status: Early draft - with comment: Inclusion of MAT(25)14002r9, MAT(25)16003r2, MAT(25)18003r1 2025-10-17   A new draft is uploaded - V 0.0.4 with status: Early draft - with comment: Updated based on the comments in MAT_3. 2025-10-03   A new draft is uploaded - V 0.0.3 with status: Early draft - with comment: The changes are for the following approved TPs: • MAT(25)13002 Text proposal for GR MAT 001 on System Model • MAT(25)13003r1 Text proposal for GR MAT 001 on OMA • MAT(25)13... 2025-09-03   A new draft is uploaded - V 0.0.2 with status: Early draft 2025-09-03   A new draft is uploaded - V 0.0.1 with status: Early draft 2025-01-16 David Vargas Work Item Adoption MAT, see contribution MAT(25)01_010r2 2025-01-16 dizdaro WI proposed to TB MAT, see contribution MAT(25)01_010r2 2025-01-14 dizdaro WI proposed to TB MAT, see contribution MAT(25)01_010r1 2025-01-14 dizdaro WI proposed to TB MAT, see contribution MAT(25)01_010