NewGateway creates a new in-memory Gateway structure.

NewSchedule creates a new Schedule.

NewStatusStore creates a new in-memory status store.

NewUtilization creates a new Utilization.

Deadline for sending a downlink back to the gateway TODO: Make configurable.

Gateway contains the state of a gateway.

Schedule is used to schedule downlink transmissions.

StatusStore is a database for setting and retrieving the latest gateway status.

Utilization manages the utilization of a gateway and its channels It is based on an exponentially weighted moving average over one minute.