Patent ID: 7366517

Claim:
Cellular radio network including an introduced cellular radio network and using a first frequency range, arranged in a geographical area served by an existing cellular radio network, the existing cellular radio network using a second frequency range at least overlapping the first frequency range, comprising: a plurality of cell clusters, each cell cluster including at least one cell, the center of each cell cluster being located in a first area defined by connecting at least two cells of the existing cellular radio network, the at least two cells being arranged to use the same transmission frequency; and wherein both the cell cluster of the introduced cellular radio network and the at least two cells of the existing cellular radio network are arranged to use the same transmission frequency, and wherein the cellular network further comprises control circuitry configured to receive a value indicating an interference from the introduced cellular radio network to the existing cellular radio network, reduce the size of at least one cell of at least one cell cluster of the introduced cellular radio network, and introduce new cells into the at least one cell cluster in case the measured interference from the introduced cellular radio network to the existing cellular radio network is larger than a predetermined threshold.