5G Time Synchronization: Performance Analysis and Enhancements for Multipath Scenarios

Muhammad Usman Hadi, Thomas Jacobsen, Renato Abreu, Troels Kolding

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

Abstract

Absolute Time Synchronization (TS) over the air interface has been introduced with 3GPP 5G NR Release 16 which enables a wide set of applications requiring accurate time-of-day service. In this paper, we present a detailed evaluation of the achievable accuracy of Release 16 TS service considering user equipment (UE) impairments, multipath components, and deployment parameters. Additionally, we propose alternative reference signal and measuring settings required for different channel realizations and environments to meet requirements from a plethora of regulatory, commercial, and 5G industrial use cases. It is shown that wideband channel state information reference signal better supports TS for control to control use case at up to 60m of cell size in comparison to 10m if synchronization signal block is used for TS. The evaluation can be used as guidelines for reference signal configurations and how often the absolute timestamps should be delivered to the UE over the air interface for different deployment scenarios.

Original languageEnglish
Title of host publicationProceedings - 2021 IEEE Latin-American Conference on Communications (LATINCOM)
EditorsRamiro Velazquez
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-5
Number of pages5
ISBN (Electronic)9781665440356
DOIs
Publication statusPublished - 23 Dec 2021
Event2021 IEEE Latin-American Conference on Communications, LATINCOM 2021 - Santo Domingo, Dominican Republic
Duration: 17 Nov 202119 Nov 2021

Publication series

NameProceedings - 2021 IEEE Latin-American Conference on Communications, LATINCOM 2021

Conference

Conference2021 IEEE Latin-American Conference on Communications, LATINCOM 2021
Country/TerritoryDominican Republic
CitySanto Domingo
Period17/11/2119/11/21

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Keywords

  • 5G NR
  • Time Synchronization

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