  Due to an ever-expansive network deployment, numerous questions are being
raised regarding the energy consumption of the mobile network. Recently,
Non-Terrestrial Networks (NTNs) have proven to be a useful, and complementary
solution to Terrestrial Networks (TN) to provide ubiquitous coverage. In this
paper, we consider an integrated TN-NTN, and study how to maximize its resource
usage in a dynamic traffic scenario. We introduce BLASTER, a framework designed
to control User Equipment (UE) association, Base Station (BS) transmit power
and activation, and bandwidth allocation between the terrestrial and
non-terrestrial tiers. Our proposal is able to adapt to fluctuating daily
traffic, focusing on reducing power consumption throughout the network during
low traffic and distributing the load otherwise. Simulation results show an
average daily decrease of total power consumption by 45% compared to a network
model following 3GPP recommendation, as well as an average throughput increase
of roughly 250%. Our paper underlines the central and dynamic role that the NTN
plays in improving key areas of concern for network flexibility.
