Control device of the change of cell level for a cellular mobile radio network has several levels of cells.

摘要

Control device of the change of cell level for a cellular mobile radio network to several levels of cells, the device comprising means (1, 2) making it possible, when a mobile station is served by a lower level cell, contained in a higher level cell, or when a mobile station is served by a higher level cell and when it is determined as a lower level cell is contained in the higher level cell is the best cell, to compare the value of a parameter representative of the speed of the mobile to a threshold in order to decide whether it is necessary to control a change of cell level, this device is essentially characterized in that it further comprises means (3) in order to determine the charge of the higher level cell, and means (4) in order to vary said threshold as a function of the load.