发表机构
Future Technology Research Center, China Telecom Research Institute; Beijing University of Posts and Telecommunications; Cloud Network Operating System R&D Center, China Telecom; University of Southampton（中国电信研究院未来技术研究中心; 北京邮电大学; 中国电信云网操作系统研发中心; 南安普顿大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
针对6G动力学群体同步中的信令冗余问题，提出热力学数字孪生框架，结合物理外推与事件触发校正，显著降低通信负载并改善延迟容忍度。
AI 中文摘要
大规模动力学群体与数字孪生网络的同步，在可预测运动被重复报告时，会产生大量信令开销。为减少此类冗余，我们提出了热力学数字孪生（TDT），一种物理引导的同步框架，将基于场的状态外推与事件触发的校正相结合。对于具有消失边界通量的封闭域，散度-熵关系被用作识别重建群体场中结构变化的物理动机。基于雷诺分解，分层热力学同步（HTS）协议将低维宏观漂移更新与全状态微观校正分离。一种局部可测量的光滑粒子流体动力学描述符，结合速度散度和加速度，提供了面向实现的早期预警触发，而输运误差分析提供了限制静默外推的短间隔规则。相同的外推机制进一步用作闭环数字孪生中的预测器类延迟补偿器。在所评估的数值设置中，相对于所考虑的基线，TDT减少了生成的边缘到云同步负载，并在跟踪误差和通信成本之间表现出有利的经验权衡。结果还表明，在所评估的控制回路中，延迟容忍度有所提高。
英文摘要
The synchronization of large-scale kinetic swarms with digital twin networks can generate substantial signaling overhead when predictable motion is repeatedly reported. To reduce such redundancy, we propose the thermodynamic digital twin (TDT), a physics-guided synchronization framework that combines field-based state extrapolation with event-triggered correction. For a closed domain with vanishing boundary flux, the divergence--entropy relation is used as a physical motivation for identifying structural changes in the reconstructed swarm field. Based on Reynolds decomposition, the hierarchical thermodynamic synchronization (HTS) protocol separates low-dimensional macroscopic drift updates from full-state microscopic corrections. A locally measurable smoothed-particle-hydrodynamics descriptor, combining velocity divergence and acceleration, provides an implementation-oriented early-warning trigger, while a transport-error analysis provides a short-interval rule for limiting silent extrapolation. The same extrapolation mechanism is further used as a predictor-like delay compensator in the closed-loop digital twin. Across the evaluated numerical settings, TDT reduces the generated edge-to-cloud synchronization payload relative to the considered baselines and exhibits a favorable empirical trade-off between tracking error and communication cost. The results also indicate improved delay tolerance in the evaluated control loop.
Comments6pages,5figures. Accepted to IEEE GLOBECOM 2026 Workshops (GC Workshops), 3rd Workshop on Digital Twins over NextG Wireless Networks
