  This paper describes the envisioned interactions between the information and
communication technology and aerospace industries to serve autonomous devices
for next generation aerial parcel delivery networks. The autonomous features of
fleet elements of the delivery network are enabled by the increased throughput,
improved coverage, and near-user computation capabilities of vertical
heterogeneous networks (VHetNets). A high altitude platform station (HAPS),
located around 20~km above the ground level in a quasi-stationary manner,
serves as the main enabler of the vision we present. In addition to the sensing
potential of the HAPS nodes, the use of communication, computing, and caching
capabilities demonstrate the attainability of the ambitious goal of serving a
fully autonomous aerial fleet capable of addressing instantaneous user demands
and enabling supply chain management interactions with delivery services in
low-latency settings.
