AI 中文总结
ETSI的ISG MAT旨在连接多址技术研究与6G标准化，通过对3GPP指定技术与候选技术比较，确定候选技术提高频谱效率的条件及影响，还进行5G NR链路级评估等工作，为6G标准化讨论提供技术证据。
AI 中文摘要
提高频谱效率和减轻用户间干扰是IMT-2030和正在进行的3GPP 6G研究的重要方面。ETSI成立了多址技术行业规范组（ISG MAT）作为一项研究和预标准化活动，以就基于3GPP的6G系统的下行链路多址技术建立更广泛的共识。其首份报告ETSI GR MAT 001 V1.1.1对3GPP指定的技术（包括OMA、MU-MIMO和MUST）与候选技术（包括功率域NOMA、RSMA和缓存辅助MU-MIMO）进行了面向标准的比较。该报告确定了候选多址技术可提高频谱效率的操作条件，并评估了对收发器处理、网络辅助信息和参考信号要求的影响。正在进行的工作包括实际的5G NR链路级评估和非地面网络的多址技术研究，为3GPP 6G标准化讨论提供及时的技术证据。
英文摘要
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.
