We propose a new method for life rescue operations after a hazard where the cellular network coverage is limited or nonexistent. The aim is to find survivors quickly by locating them even without their active participation. Our approach is based on deploying unmanned aerial vehicles as parts of the cellular network. We exploit the fact that, increasingly, almost everyone carries cellular mobile devices, also called user equipment (UE). Although limited in power, they can serve as human-based wireless sensors in the DIAs even in the absence of cellular network coverage. Our method provides critical situational awareness to first responders by generating visual crisis maps based on the location distributions of the surviving UE, showing where and how (whether indoor or outdoor) the potential survivors are clustered. These maps are constructed using the signaling messages that are typically sent by UE for exchanging information with the network.

中文翻译：

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无人机与用户设备合作的灾后蜂窝网络恢复

我们提出了一种在蜂窝网络覆盖有限或不存在的危险之后进行生命救援行动的新方法。目的是即使没有他们的积极参与，也可以通过定位他们来快速找到幸存者。我们的方法基于部署无人机作为蜂窝网络的一部分。我们利用这样一个事实，即越来越多的人都携带蜂窝移动设备，也称为用户设备 (UE)。尽管功率有限，但即使在没有蜂窝网络覆盖的情况下，它们也可以用作 DIA 中的基于人的无线传感器。我们的方法通过基于幸存 UE 的位置分布生成视觉危机地图，显示潜在幸存者聚集的位置和方式（无论是室内还是室外），为急救人员提供关键的态势感知。