A mechanism to control power consumption by a base station, such as a base station that implements an antenna array, such as a massive-MIMO antenna array. A computing system detects operation by the base station in a low-usage state and operation by a collated base station in a low-usage state. In response, the computing system then causes reconfiguration of a proper subset of antenna structures of the antenna array from an enabled state to a disabled state, while keeping a remainder of the antenna structures of the antenna array in the enabled state.