Abstract: A method for operating a cellular mobile telephone network formed by a multiplicity of cells, with several cells at a time being grouped into a location area, by means of which mobile telephone terminals attached to the mobile telephone network can be located and addressed in this location area such that, for the purpose of establishing a call with a mobile telephone terminal, all cells in this location area page the mobile telephone terminal, wherein several groups (1, 2, 3 N) of location areas are created, with each cell being assigned to one or more of said groups (1, 2, 3, . . . N) and a cell being assignable to different of said groups (1, 2, 3, . . . N), and addressing of the cell being performed according to its affinity to a specific group (1, 2, 3, . . . N) of said groups.

Abstract: A mobile radio telephone system has at least one first radio cell, several radio cells to that are adjacent to the first radio cell and base stations, each of the latter covering one of the radio cells. A sub-group of the adjacent radio cells is determined depending on the position of a mobile station in the first radio cell. The mobile station subsequently measures a quality parameter of only those signals of the base stations associated with the sub-groups of the adjacent radio cells. One possible advantage is that the time required to carry out the measurements is relatively short as a result of the reduction of their number.