  In this paper, we consider the sixth generation (6G) sub-networks, where
hyper reliable low latency communications (HRLLC) requirements are expected to
be met. We focus on a scenario where multiple sub-networks are active in the
service area and assess the feasibility of using the 6 GHz unlicensed spectrum
to operate such deployment, evaluating the impact of listen before talk (LBT).
Then, we explore the benefits of using distributed multiple input multiple
output (MIMO), where the available antennas in every sub-network are
distributed over a number of access points (APs). Specifically, we compare
different configurations of distributed MIMO with respect to centralized MIMO,
where a single AP with all antennas is located at the center of every
sub-network.
