工业物联网中URLLC的关键问题分析

汪晗; 刁磊; 王梦玲; 荣欣; 李佳珉; 尤肖虎

doi:10.11959/j.issn.1000-0801.2022110

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工业物联网中URLLC的关键问题分析

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- 工业物联网中URLLC的关键问题分析
- A survey of key issues of URLLC in industrial internet of things
- 电信科学 2022年38卷第Z1期页码：77-92
- 作者机构：
  
  1. 东南大学移动通信国家重点实验室，江苏南京 210096
  2. 紫金山实验室，江苏南京 211111
- 作者简介：
  
  [ "汪晗（1998- ），女，东南大学信息科学与工程学院硕士生，主要研究方向为高可靠低时延的通信接入" ]
  [ "刁磊（1996- ），男，东南大学信息科学与工程学院硕士生，主要研究方向为高可靠低时延通信下的活跃用户检测" ]
  [ "王梦玲（1997- ），女，东南大学信息科学与工程学院硕士生，主要研究方向为高可靠低时延通信下的导频分配" ]
  [ "荣欣（2000- ），女，东南大学信息科学与工程学院硕士生，主要研究方向为高可靠低时延的通信接入" ]
  [ "李佳珉（1983- ），男，博士，东南大学信息科学与工程学院副教授，主要研究方向为密集分布式 MIMO 技术、毫米波大规模MIMO技术、卫星通信技术（空天地海一体化）、基于多目标优化及人工智能的未来移动通信理论" ]
  [ "尤肖虎（1962- ），男，博士，东南大学移动通信国家重点实验室主任，紫金山实验室副主任，主要研究方向为无线与移动通信系统、现代数字信号处理等" ]
- 基金信息：
  
  国家重点研发计划项目;The National Key Research and Development Program(2021YFB2900300);国家自然科学基金资助项目;The National Natural Science Foundation of China(61971127);国家自然科学基金资助项目;The National Natural Science Foundation of China(61871465);国家自然科学基金资助项目;The National Natural Science Foundation of China(61871122)
- DOI：10.11959/j.issn.1000-0801.2022110
  中图分类号： TN914
- 网络出版日期：2022-05，
  
  纸质出版日期：2022-05-31
- 稿件说明：
移动端阅览
汪晗, 刁磊, 王梦玲, 等. 工业物联网中URLLC的关键问题分析[J]. 电信科学, 2022,38(Z1):77-92.

Han WANG, Lei DIAO, Mengling WANG, et al. A survey of key issues of URLLC in industrial internet of things[J]. Telecommunications science, 2022, 38(Z1): 77-92.
汪晗, 刁磊, 王梦玲, 等. 工业物联网中URLLC的关键问题分析[J]. 电信科学, 2022,38(Z1):77-92. DOI： 10.11959/j.issn.1000-0801.2022110.

Han WANG, Lei DIAO, Mengling WANG, et al. A survey of key issues of URLLC in industrial internet of things[J]. Telecommunications science, 2022, 38(Z1): 77-92. DOI： 10.11959/j.issn.1000-0801.2022110.

摘要

在6G物联网时代，海量终端设备智慧互联，发掘环境信息提高生活质量，创造更加智能的世界。随着经济社会和工业的发展，工业物联网（industrial internet of things，IIoT）中工业节点的数量以惊人的速度增长，这些工业节点间实时传输交换信息，对通信的时延和可靠性提出了更高要求。在有限的时频资源和严格的通信质量要求下，为保证IIoT中海量终端的超可靠超低时延通信（ultra-reliable and low-latency communication，URLLC），需要从低时延、可靠性、能量效率、频谱效率和可拓展性等方面对存在的关键问题进行分析。在工业物联网场景下，结合URLLC的特点和需求，研究了工业物联网中通信的关键问题：活跃用户检测、随机接入、资源分配和通算融合中的挑战和机遇，对关键问题以及现有技术进行总结分析后，提出了未来的研究方向。

Abstract

In the age of 6G internet of things

massive terminal devices are connected intelligently to explore environmental information to improve life quality and create a more intelligent world.With the development of economic society and industry

the number of industrial nodes in the industrial internet of things (IIoT) grows at an significant speed.The real-time transmission and exchange of information between these industrial nodes puts forward higher requirements for communication delay and reliability.Under limited time-frequency resources and strict communication quality requirements

in order to ensure ultra-reliable and low-latency communication (URLLC) of massive terminals in IIoT

it is necessary to analyze the existing key problems from the aspects of low delay

reliability

energy efficiency

spectrum efficiency and scalability.In the scenario of IIoT

combined with the characteristics and requirements of URLLC

the key issues of communication in IIoT were studied

including challenges and opportunities in active user detection

random access

resource allocation and convergence of communication and computation.After summarizing and analyzing the key issues and existing technologies

the future research direction was proposed.

关键词

Keywords

references

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