Unlicensed Assisted Ultra-Reliable and Low-Latency Transmission

Qiqi Xiao, Jiantao Yuan, Rui Yin, Wei Qi, Celimuge Wu, Xianfu Chen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


The ultra-reliable and low-latency communication (URLLC) has many potential applications in the Internet of Things (IoTs). This paper exploits both the licensed and unlicensed spectrums to support the URLLC transmissions, alleviating the lack of licensed spectrum resources, and adopts the duty-cycle muting (DCM) to ensure fair coexistence with the WiFi network. The user grouping scheme, mini-slot frame structure, and finite block length regime are used to guarantee low latency and high reliability. Meanwhile, to reduce the power consumption at the URLLC devices, we establish a minimum power optimization model and provide the globally optimal solutions. Simulation results are presented to verify the feasibility and effectiveness of the proposed scheme, which can not only reduce the power consumption at the devices, but also improve the system spectrum efficiency.

Original languageEnglish
Title of host publicationMobile Networks and Management - 11th EAI International Conference, MONAMI 2021, Proceedings
EditorsCarlos T. Calafate, Xianfu Chen, Yuan Wu
Number of pages14
ISBN (Electronic)978-3-030-94763-7
ISBN (Print)978-3-030-94762-0
Publication statusPublished - 2022
MoE publication typeA4 Article in a conference publication
Event11th EAI International Conference on Mobile Networks and Management, MONAMI 2021 - Virtual, Online
Duration: 27 Oct 202129 Oct 2021

Publication series

SeriesLecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering


Conference11th EAI International Conference on Mobile Networks and Management, MONAMI 2021
CityVirtual, Online


  • DCM
  • Finite block length regime
  • Power allocation
  • Spectrum allocation
  • Unlicensed band


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