  Coming cellular systems are envisioned to open up to new services and
applications with high reliability and low latency requirements. In this paper
we focus on the rate allocation problem in downlink cellular networks with
Rayleigh fading and stringent reliability constraints. We propose a rate
control strategy to cope with those requirements making use only of topological
characteristics of the scenario, the reliability constraint and the number of
antennas that are available at the receiver side. Numerical results show the
feasibility of the ultra-reliable operation when the number of antennas
increases, and also that our results remain valid even when operating at short
blocklength as far as the amount of information to be transmitted is not too
small.
