Publication
Development and Evaluation of a 5G NR TDD Mode Scheduler
Leonard Kleinberger
Mastersthesis, RPTU Kaiserslautern, 2025.
Abstract
Cellular communication has become a fundamental component of modern communication enabling seamless connectivity across diverse applications and services.
In industrial use cases such as manufacturing domains, 5G time division duplex networks can have a particularly high impact.
Nevertheless, practical 5G scheduler implementations rarely adjust the ratio of uplink to downlink traffic, but instead rely on initiation configuration of a fixed ratio.
This work proposes a new FLEX scheduler, that is able to dynamically adjust the ratio of uplink to downlink traffic, while attempting to satisfy quality of service requirements of both traffic directions.
The feasibility of such a scheduler is shown through practical simulations which evaluate the scheduler on industrial scenarios.
These simulations demonstrate, that the FLEX scheduler can deliver similar overall performance, while still fulfilling quality of service requirements.
Furthermore, the simulations show that the impact the FLEX scheduler on latency can be minimal, provided the traffic pattern is deterministic.