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arXiv 2608.01668cs.NI

面向5G非地面网络切片的低地球轨道(LEO)感知深度强化学习元调度器

LEO-Aware DRL Meta-Scheduler for 5G Non-Terrestrial Network Slicing

Víctor Vilchez, Tiago P. C. de Andrade, Edward Hinojosa, Edmundo Madeira, and Carlos A. Astudillo

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中文总结 AI 辅助

针对5G非地面网络集成LEO带来的资源管理挑战,提出基于TD3智能体的DRL元调度器,在牺牲1%不显著容量的情况下,严格限制关键业务排队延迟,且不会导致宽带切片饥饿,为6G O-RAN NTN资源分配提供基础。

中文摘要 AI 辅助

将低地球轨道(LEO)非地面网络(NTN)集成到5G及未来6G架构中,带来了诸多挑战,包括严重的传播延迟、超高频段基站移动性以及信道非平稳性,使异构网络切片的无线资源管理变得复杂。本文提出一种用于双时间尺度资源分配的深度强化学习(DRL)元调度器。该方案采用解耦的开放无线接入网(O-RAN)架构,其中一个策略性的100毫秒元调度器利用过时的遥测数据为不同网络切片选择调度策略,而快速时间尺度的媒体接入控制(MAC)分组调度器处理每个传输时间间隔(TTI)的用户请求。由此产生的马尔可夫决策过程通过双延迟深度确定性策略梯度(TD3)智能体捕获非平稳轨道动态和异构服务水平协议(SLA)约束。在不同业务负载下的仿真结果显示,与其他方案不同,所提元调度器明确交换了在统计上不显著的1%容量份额(p>0.05),以严格限制关键任务(MC)业务的无线链路控制(RLC)层排队延迟的方差和总幅度。至关重要的是,它在不导致标准最大信道质量指示(max-CQI)启发式方法所具有的宽带切片饥饿特性的情况下实现了这种隔离,为6G O-RAN NTN资源分配奠定了坚实基础。

英文摘要

The integration of Low Earth Orbit (LEO) Non-Terrestrial Networks (NTNs) into 5G and upcoming 6G architectures introduces various challenges, including severe propagation delays, ultra-high base station mobility, and channel non-stationarity, complicating radio resource management of heterogeneous network slices. In this paper, we propose a deep reinforcement learning (DRL) meta-scheduler for twin-timescale resource allocation. Our solution adopts a decoupled Open Radio Access Network (RAN) architecture, in which a strategic 100 ms meta-scheduler selects scheduling policies for the different network slices using stale telemetry, while a fast-timescale MAC packet scheduler processes per-TTI user requests. The resulting Markov Decision Process captures non-stationary orbital dynamics and heterogeneous SLAs constraints via a TD3 agent. Simulation results under varying traffic load show that, unlike other solutions, the proposed meta-scheduler explicitly trades a statistically insignificant 1% capacity fraction (p > 0.05) to strictly bound the variance and overall magnitude of RLC-layer queuing delay for Mission-Critical (MC) traffic. Crucially, it enforces this isolation without inducing the broadband slice starvation characteristic of standard maximum-CQI heuristics, establishing a robust foundation for 6G O-RAN NTN resource allocation.

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