A method and apparatus in a base station serving a first cell in a cellular network, for
supporting radio resource management, RRM, in the cellular network. The base station
obtains measurements (M) of signals transmitted in the first cell and of signals transmitted in
at least one neighboring cell and determines a cell isolation factor of the first cell, based on
the obtained measurements, the cell isolation factor indicating insusceptibility to interference
from signals transmitted in the neighboring cell (s). The determined cell isolation factor is …