Various legacy and emerging industrial control applications create the requirement of periodic and time-sensitive communication (TSC) for 5G/6G networks. State-of-the-art semi-persistent scheduling (SPS) techniques fall short of meeting the requirements of this type of critical traffic due to periodicity misalignment between assignments and arriving packets that lead to significant waiting delays. To tackle this challenge, we develop a novel recursive periodicity shifting (RPS)-SPS scheme that provides an optimal scheduling policy by recursively aligning the period of assignments until the timing mismatch is minimized. RPS can be realized in 5G wireless networks with minimal modifications to the scheduling framework. Performance evaluation shows the effectiveness of the proposed scheme in terms of minimizing misalignment delay with arbitrary traffic periodicity.

翻译：5G/6G网络需要定期和具有时间敏感性的通信(TSC),由于任务分配和运达的包裹之间周期性不协调,导致大量等候时间的拖延,因此最先进的半持久性调度技术无法满足这类关键交通的要求。为了应对这一挑战,我们制定了一个新的循环周期性转换(RPS)-SPS计划,通过在时间错配最小之前对分配时间进行反复调整,提供最佳的时间安排政策。RPS可以在5G无线网络中实现,对时间安排框架进行最低限度的修改。绩效评估显示拟议计划在尽量减少与任意交通周期不匹配的延误方面的有效性。