本项目面向6G超低时延超高可靠通信技术需求，围绕超大规模MIMO低时延高可靠通信理论、海量终端低时延高可靠通信技术和超高效率低时延高可靠无线传输技术三个方面的关键科学技术问题，开展6G超低时延超高可靠大规模无线传输技术研究，建立 6G 超低时延超高可靠大规模无线传输理论方法和技术体系。研究内容包括低时延高可靠超大规模MIMO通信理论、海量终端低时延高可靠多域资源协同与调配技术、海量终端低时延高可靠通信接入与多连接技术、超低时延超高可靠无线空口及多维特性深度适配技术、超低时延超高可靠大规模无线传输软件仿真与试验验证平台。本年度项目组根据任务书和实施方案的要求有序开展研究工作，项目研究进展顺利，达成预期年度目标。在超低时延超高可靠大规模无线传输基础理论、海量终端低时延高可靠多域资源协同与调配技术、海量终端低时延高可靠通信接入与多连接技术、超低时延超高可靠无线空口及多维特性深度适配技术、超低时延超高可靠大规模无线传输软件仿真与试验验证平台等五个方面均取得重要阶段性成果。Aiming at 6G ultra-reliable low-latency communications(URLLC),this project focuses on the key scientific and technical issues of massive multiple input multiple output(MIMO)URLLC theory,massive access URLLC technology and ultra-high efficiency URLLC transmission technology and establishes a theoretical method and technical system for 6G ultra-low latency,ultra-high reliability,and large-scale wireless transmission.The research content includes the theory of ultra-large scale MIMO communication with low latency and high reliability,multi-domain resource coordination and deployment technology of mass terminals with low latency and high reliability,access and multi-connection technology of mass terminals with low latency and high reliable communication,ultra-low-latency and high reliable wireless air interface and adaptation technology of multi-dimensional characteristics,simulation and test verification platform of ultra-low latency and high reliable large-scale wireless transmission software.This year,the project team carried out the research in an all-round way according to the requirements of the research plan.The project research progressed smoothly and the expected annual target was achieved.It has achieved important progress in five aspects:theoretical basis of ultra-low-latency and ultra-high reliable large-scale wireless transmission,low-latency and ultra-reliable multi-domain resource coordination and deployment technology of massive terminals,low-latency and ultra-reliable communication access and multi-connection technology of massive terminals,ultra-low-latency and ultra-reliable wireless air interface and adaptation technology of multi-dimensional characteristics,and ultra-low-latency and ultra-reliable large-scale wireless transmission software simulation and test verification platform.

本报告介绍课题组2021年12月以来年研究工作取得的阶段性成果，主要包括:1在极小块长超低时延超高可靠超大规模MIMO传输容量理论方面，对极小块长超大规模MIMO系统信道容量与用户容量进行理论分析,2在超大规模MIMO超低时延超高可靠传输的空时对换理论方面，研究了超大规模MIMO的空间自由度对于无线传输的可靠性、时延、频谱效率和能量效率等性能的提升，在无蜂窝大规模MIMO架构下分别对低时延高可靠传输性能与系统配置的折中机理、低时延高可靠传输能效与谱效的折中机理以及收发处理结构和容量逼近机制,3在超大规模MIMO端到端超低时延超高可靠传输方面，研究了基于网络演算的端到端时延分析技术，搭建了网络仿真验证平台并对TSN调度机制进行了性能测试与分析,4分析了子带双工系统适合的应用场景、系统配置方案，并围绕多种场景和系统配置展开性能评估及干扰控制方案的研究。This report introduces the phased results of the research work of the research group since December 2021,mainly including:1in the theory of transmission capacity of ultra-small block length ultra-low latency ultra-high reliability ultra-massive MIMO,the theoretical analysis of channel capacity and user capacity of very small block long ultra-large MIMO system,2in the space-time exchange theory of ultra-low latency ultra-high reliability transmission of ultra-large MIMO,the spatial freedom of ultra-large MIMO for the reliability,delay,and wireless transmission are explored.In terms of ultra-massive MIMO end-to-end ultra-low latency and ultra-high reliability transmission,the end-to-end delay analysis technology based on network calculus was studied,and the network simulation verification platform was built and the performance test and analysis of TSN scheduling mechanism were carried out.4The suitable application scenarios and system configuration schemes of the subband duplex system were analyzed,and the performance evaluation and interference control scheme were studied around various scenarios and system configurations.

超低时延超高可靠通信是6G垂直行业应用的关键技术，是6G最重要的需求之一。随着6G 网络规模不断扩大，跨域数据传输时延与可靠性难以保障；新兴垂直业务需要时频空波码等无线资源与计算缓存资源的协同服务。基于此，本课题将面向6G超低时延超高可靠跨域协同与多域资源调配关键技术，围绕业务驱动的跨域时延分析与多网协同机制、海量终端跨域全网智能协同与适配术、6G 超低时延超高可靠多域资源智能管控等问题展开研究。具体地，本课题将研究跨域时延与多网协同机制，建立流量与链路状态驱动的网络端到端时延分析模型，实现跨自治域高效路径编排；研究海量终端跨域协同与适配技术，构建面向海量终端的异构分布式学习架构，实现多域网络资源的智能实时优化；研究超低时延超高可靠边缘多域资源的智能管控，建立用户业务与多域资源动态映射关系，构建动态高可靠网络服务机制。Ultra-low latency and ultra-reliable communication is one of the key technologies for future 6G networks.As network scale keeps increasing,it is difficult to guarantee the latency and reliability of cross-domain data transmission.Emerging vertical services require synergistic services between radio resources and computing cache resources.This project focuses on the key technologies of 6G ultra-low latency and ultra-high reliability cross-domain collaboration and multi-domain resource allocation,focusing on service-driven cross-domain delay analysis and multi-network collaboration mechanism,cross-domain network-wide intelligent collaboration and adaptation of massive terminals,and intelligent management and control of 6G ultra-low latency and ultra-high reliability multi-domain resources.Specifically,this project will study the cross-domain delay and multi-network collaboration mechanism,establish an end-to-end network delay analysis model driven by traffic and link state,and realize efficient path orchestration across autonomous domains.Research on cross-domain collaboration and adaptation technology of massive terminals,build a heterogeneous distributed learning architecture for massive terminals,and realize intelligent real-time optimization of multi-domain network resources.Research on the intelligent management and control of ultra-low latency and ultra-high reliability edge multi-domain resources,establish a dynamic mapping relationship between user services and multi-domain resources,and build a dynamic and highly reliable network service mechanism.