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Compensating the Packet Delay Variation for 6G Integrated with IEEE Time-Sensitive Networking

Marilet De Andrade, Joachim Sachs, Lucas Haug, Simon Egger, Frank Dürr, Balázs Varga, Janos Farkas, György Miklós

TL;DR

This paper investigates 6G networks integrated with TSN and how to compensate for wireless stochastic behavior which involves a large intrinsic packet delay variation, and proposes to use virtual timeslots for providing the required time-awareness.

Abstract

6G is deemed as a key technology to support emerging applications with stringent requirements for highly dependable and timecritical communication. In this paper, we investigate 6G networks integrated with TSN and how to compensate for wireless stochastic behavior which involves a large intrinsic packet delay variation. We evaluate a 6G solution to reduce packet delay variation that is based on de-jittering. For this, we propose to use virtual timeslots for providing the required time-awareness. We discuss the benefits of the proposed solution while evaluating the impact of the timeslot size on the number of schedulable TSN streams.

Compensating the Packet Delay Variation for 6G Integrated with IEEE Time-Sensitive Networking

TL;DR

This paper investigates 6G networks integrated with TSN and how to compensate for wireless stochastic behavior which involves a large intrinsic packet delay variation, and proposes to use virtual timeslots for providing the required time-awareness.

Abstract

6G is deemed as a key technology to support emerging applications with stringent requirements for highly dependable and timecritical communication. In this paper, we investigate 6G networks integrated with TSN and how to compensate for wireless stochastic behavior which involves a large intrinsic packet delay variation. We evaluate a 6G solution to reduce packet delay variation that is based on de-jittering. For this, we propose to use virtual timeslots for providing the required time-awareness. We discuss the benefits of the proposed solution while evaluating the impact of the timeslot size on the number of schedulable TSN streams.
Paper Structure (22 sections, 11 figures, 1 table)

This paper contains 22 sections, 11 figures, 1 table.

Table of Contents

  1. Introduction
  2. Related Work
  3. TSN Scheduling
  4. Jitter Control Mechanisms
  5. Background and Problem Statement
  6. Introduction to 5G-TSN Integration
  7. Compensating Packet Delay Variation
  8. The Problem of Uncertain Queuing Orderings
  9. Packet Delay Correction
  10. PDC based on Timestamps
  11. PDC based on Virtual Time Slots
  12. Configuration Options for PDC
  13. Simulator Implementation of PDC
  14. Evaluation
  15. Methodology
  16. ...and 7 more sections

Figures (11)

  • Figure 1: The 5G system modeled as a logical TSN bridge, turning into a 5G-TSN bridge, as standardized by 3GPP TS 23.501 3gpp.23.501.
  • Figure 2: Bounded delay through PDC and URLLC.
  • Figure 3: Uncertain queuing orderings for streams $F_1$ and $F_2$. Without accounting for the significant 6G packet delay variations, $F_2$ can arrive earlier than expected by the IEEE 802.1Qbv schedule.
  • Figure 4: Packet delay correction mechanism
  • Figure 5: R-TAG format, as defined in IEEE 802.1CB 802.1CB
  • ...and 6 more figures