The aim of this work is to quantify, assess, and identify hotspots in the environmental sustainability of newly constructed ICT networks designed to provide internet access (4 G LTE mobile technology) to regions still lacking this service. The analysis has been carried out on six demographic areas, from high-density urban and peri‑urban to remote rural, using ISO 14,040. A Dynamic Inventory Model (DIM) relating demographic/connectivity features with foreground material and energy inventories was validated using real data from Peru. The results showed carbon footprints between 81 and 103 kg CO₂ eq./subscription/year, equivalent to 1.35 – 1.73 kg CO₂ eq./Gb. Most of this (between 68 and 86%) correspond to end user devices, primarily in the form of embodied emissions. Operational emissions account for about one-third of the total and derive primarily from the electricity consumed by end user devices, and to a lower extent by access networks and data centers. Linear correlations were observed between operational - embodied carbon emissions and the number of subscribers. This trend was overturned in very small ICT networks designed to serve sparsely populated rural areas, due to higher energy consumption and carbon emissions per functional unit generated by access and IP network components. The robustness of these results was studied through sensitivity and uncertainty analyses.

这项工作的目的是量化、评估和确定新建 ICT 网络的环境可持续性热点，这些网络旨在为仍然缺乏这项服务的地区提供互联网接入（4G LTE 移动技术）。使用 ISO 14,040 对六个人口区域进行了分析，从高密度城市和城郊到偏远农村。使用来自秘鲁的真实数据验证了将人口统计/连通性特征与前景材料和能源库存相关联的动态库存模型 (DIM)。结果显示碳足迹介于 81 至 103 kg CO ₂ 当量/订阅/年，相当于 1.35 – 1.73 kg CO ₂eq./Gb。其中大部分（68% 至 86%）对应于最终用户设备，主要以隐含排放的形式出现。运营排放约占总量的三分之一，主要来自最终用户设备消耗的电力，其次是接入网络和数据中心。在运营-隐含碳排放量和订户数量之间观察到线性相关性。由于接入和 IP 网络组件产生的每个功能单元更高的能源消耗和碳排放量，这种趋势在旨在为人口稀少的农村地区提供服务的非常小的 ICT 网络中被推翻。通过敏感性和不确定性分析研究了这些结果的稳健性。