A method comprising obtaining, over a series of times, information related to at least one of spatial properties and frequency properties of a channel used in a directional communication between a communication network control element or function and a communication element, quantifying the information related to at least one of spatial properties and frequency properties into a metric, tracking whether the metric is smaller than a first threshold or greater than a second threshold during a predetermined period of time, and deciding to use a first transmission mode or a second transmission mode on the basis of a result of the tracking, characterized by further comprising: determining whether a handover processing is conducted for the communication element of the directional communication, and suspending the deciding to use the first transmission mode or the second transmission mode in case a handover processing is conducted, wherein the method further comprises: when tracking whether the metric is smaller than the first threshold or greater than the second threshold during the predetermined period of time, monitoring a rate of change in time of the metric, and, when deciding to use the first transmission mode or the second transmission mode on the basis of a result of the tracking, selecting either the first transmission mode or the second transmission mode on the basis of the monitoring of the rate of change in time of the metric. obtaining, over a series of times, information related to at least one of spatial properties and frequency properties of a channel used in a directional communication between a communication network control element or function and a communication element, quantifying the information related to at least one of spatial properties and frequency properties into a metric, tracking whether the metric is smaller than a first threshold or greater than a second threshold during a predetermined period of time, and deciding to use a first transmission mode or a second transmission mode on the basis of a result of the tracking, characterized by further comprising: determining whether a handover processing is conducted for the communication element of the directional communication, and suspending the deciding to use the first transmission mode or the second transmission mode in case a handover processing is conducted, wherein the method further comprises: when tracking whether the metric is smaller than the first threshold or greater than the second threshold during the predetermined period of time, monitoring a rate of change in time of the metric, and, when deciding to use the first transmission mode or the second transmission mode on the basis of a result of the tracking, selecting either the first transmission mode or the second transmission mode on the basis of the monitoring of the rate of change in time of the metric. determining whether a handover processing is conducted for the communication element of the directional communication, and suspending the deciding to use the first transmission mode or the second transmission mode in case a handover processing is conducted, wherein the method further comprises: when tracking whether the metric is smaller than the first threshold or greater than the second threshold during the predetermined period of time, monitoring a rate of change in time of the metric, and, when deciding to use the first transmission mode or the second transmission mode on the basis of a result of the tracking, selecting either the first transmission mode or the second transmission mode on the basis of the monitoring of the rate of change in time of the metric. when tracking whether the metric is smaller than the first threshold or greater than the second threshold during the predetermined period of time, monitoring a rate of change in time of the metric, and, when deciding to use the first transmission mode or the second transmission mode on the basis of a result of the tracking, selecting either the first transmission mode or the second transmission mode on the basis of the monitoring of the rate of change in time of the metric.