Method for realizing cell selection by a user equipment being in a radio environment comprising a plurality of radio cells (11, 12, 13) of a plurality of mobile communication networks (100, 200, 300), each one of these radio cells (11, 12, 13) being associated, respectively, to at least one mobile communication network of the plurality of mobile communication networks (100, 200, 300), wherein the user equipment is configured to measure or detect reception conditions regarding the plurality of radio cells (11, 12, 13), and to subsequently select and/or register to a mobile communication network out of the plurality of mobile communication networks (100, 200, 300), wherein the user equipment has or is associated with a home public land mobile network, HPLMN, wherein regarding cell selection by the user equipment a HPLMN-provided cell selection criterion is defined, wherein a radio cell of a considered radio access technology is considered to be a suitable radio cell only in case that the corresponding reception conditions, as measured by the user equipment, correspond to or exceed the HPLMN-provided cell selection criterion regarding the considered radio access technology, wherein the method comprises the following steps: -- in a first step, suitable radio cells of a considered radio access technology are determined by the user equipment based on the HPLMN-provided cell selection criterion regarding the considered radio access technology, wherein the HPLMN-provided cell selection criterion comprises or takes into account a home-operator-controlled value being set or being able to be adjusted by the HPLMN or its operator, wherein the HPLMN-provided cell selection criterion is more restrictive compared to a cell selection criterion lacking a home-operator-controlled component, wherein the home-operator-controlled value of the HPLMN-provided cell selection criterion corresponds to an offset value being additionally applied compared to the cell selection criterion, or an absolute value, -- in a second step, upon initiating network selection according to the automatic network selection mode, only such suitable radio cells are considered for network selection by the user equipment that have or correspond to reception conditions corresponding to or exceeding the HPLMN-provided cell selection criterion. -- in a first step, suitable radio cells of a considered radio access technology are determined by the user equipment based on the HPLMN-provided cell selection criterion regarding the considered radio access technology, wherein the HPLMN-provided cell selection criterion comprises or takes into account a home-operator-controlled value being set or being able to be adjusted by the HPLMN or its operator, wherein the HPLMN-provided cell selection criterion is more restrictive compared to a cell selection criterion lacking a home-operator-controlled component, wherein the home-operator-controlled value of the HPLMN-provided cell selection criterion corresponds to an offset value being additionally applied compared to the cell selection criterion, or an absolute value, -- in a second step, upon initiating network selection according to the automatic network selection mode, only such suitable radio cells are considered for network selection by the user equipment that have or correspond to reception conditions corresponding to or exceeding the HPLMN-provided cell selection criterion.