【作者】 梁厚泽； 江越； 王玺钧； 陈翔；

【Author】 Houze Liang;Yue Jiang;Xijun Wang;Xiang Chen;School of Electronics and Information Technology (School of Microelectronics),Sun Yat-Sen University;

【机构】 中山大学电子与信息工程学院；

【摘要】 面向低轨卫星(LEO)与地面网络深度融合的天地一体化场景,传统地面核心网因依赖集中式地面节点,面临多跳回传时延高、频繁切换引发信令风暴、星间拓扑非直连导致业务时延激增等挑战。本文提出一种分布式星载核心网架构,通过星载节点本地化信令处理、全局状态同步及负载均衡技术,实现信令流量的时空维度优化,显著降低跨域多跳转发需求。实验表明,该架构降低了网内信令拥塞度,有效缓解地面站瓶颈效应,为6G非地面网络(NTN)的高效组网与低时延服务提供了创新性解决方案。更多还原

【Abstract】 In scenarios of deeply integrated Low Earth Orbit(LEO) satellite-terrestrial networks,traditional ground-centric core architectures face critical challenges,including multi-hop backhaul latency,signaling storms induced by frequent handovers,and service delays due to non-direct inter-satellite links.To address these issues,this paper proposes a distributed onboard core network architecture,which employs localized signaling processing on satellite nodes,global state synchronization,and load balancing to optimize traffic distribution across temporal and spatial dimensions,thereby significantly reducing cross-domain multi-hop forwarding demands.Experimental results demonstrate that the proposed architecture effectively alleviates in-network signaling congestion and mitigates ground station bottlenecks,offering an innovative solution for 6G Non-Terrestrial Networks(NTN) to achieve efficient networking and low-latency services.更多还原