Over-the-Air Time Synchronization for URLLC: Requirements, Challenges and Possible Enablers release_ad7azamcvrdnvlbatc5o6ngcbe

by Aamir Mahmood, Muhammad Ikram Ashraf, Mikael Gidlund, Johan Torsner

Released as a article .

2018  

Abstract

Ultra-reliable and low-latency communications (URLLC) is an emerging feature in 5G and beyond wireless systems, which is introduced to support stringent latency and reliability requirements of mission-critical industrial applications. In many potential applications, multiple sensors/actuators collaborate and require isochronous operation with strict and bounded jitter, e.g., 1. To this end, network time synchronization becomes crucial for real-time and isochronous communication between a controller and the sensors/actuators. In this paper, we look at different applications in factory automation and smart grids to reveal the requirements of device-level time synchronization and the challenges in extending the high-granularity timing information to the devices. Also, we identify the potential over-the-air synchronization mechanisms in 5G radio interface, and discuss the needed enhancements to meet the jitter constraints of time-sensitive URLLC applications.
In text/plain format

Archived Files and Locations

application/pdf  1.1 MB
file_yp6q2cuivzevhbr7cdvvnqs2pq
arxiv.org (repository)
web.archive.org (webarchive)
Read Archived PDF
Preserved and Accessible
Type  article
Stage   submitted
Date   2018-06-29
Version   v1
Language   en ?
arXiv  1807.00078v1
Work Entity
access all versions, variants, and formats of this works (eg, pre-prints)
Catalog Record
Revision: 27b2631c-0afc-4ffa-ac74-be4f5b373641
API URL: JSON