The proliferation of Multi-Radio Access Technology, Internet of Things devices, particularly Unmanned Aerial Vehicles operating across LoRaWAN, 5G/4G cellular, Meshtastic mesh, proprietary protocols such as DJI OcuSync, MAVLink telemetry links, Wi-Fi, and satellite, creates a fundamental and hitherto unexamined challenge for Zero Trust Architecture adoption. Each transition between radio access technologies constitutes a trust boundary crossing: the device exits one network trust domain and enters another, potentially invalidating authentication state, device attestation, and contextual trust signals. Current ZTA frameworks assume relatively stable network environments and do not address the trust implications of frequent, dynamic RAT switching in mobile IoT deployments.

翻译：多无线接入技术物联网设备（特别是跨LoRaWAN、5G/4G蜂窝网络、Meshtastic网状网络、DJI OcuSync等专有协议、MAVLink遥测链路、Wi-Fi及卫星通信运行的无人机）的激增，为零信任架构的采用带来了根本性且迄今尚未被充分研究的挑战。每次无线接入技术间的切换都构成信任边界跨越：设备退出一个网络信任域并进入另一个，可能导致认证状态、设备证明和上下文信任信号失效。现有零信任架构框架假设相对稳定的网络环境，未能解决移动物联网部署中频繁动态无线接入技术切换所引发的信任问题。