Electronic device and method for the electronic device for clustering of high priority level secondary systems

An electronic apparatus, comprising:

• processing circuitry, configured to:
• determine, based on mutual interferences between low priority level secondary systems and high priority level secondary systems, a first set of the high priority level secondary systems, wherein the mutual interferences between the high priority level secondary systems in the first set and at least one low priority level secondary system are higher than a predetermined level;
• and
• cluster, based on information related to the first set, the high priority level secondary systems in the first set, wherein
• the processing circuitry is further configured to take the high priority level secondary systems outside of the first set as a second set, and the mutual interferences between the high priority level secondary systems in the second set and each of the low priority level secondary systems are lower than the predetermined level, and
• the processing circuitry is configured to cluster, based on information related to the first set and the second set, the high priority level secondary systems;
• wherein the processing circuitry is configured to perform the clustering to minimize the number of clusters into which the high priority level secondary systems in the first set are clustered;
• and
• wherein the processing circuitry is configured to first cluster the high priority level secondary systems in the second set, and then cluster, based on a result of the clustering, the high priority level secondary systems in the first set.