The present invention relates to a method and arrangement for cell type information sharing between neighbor base stations (310, 330) in a telecommunications system (300). One embodiment comprises informing a second radio base station (330) serving a second cell (340) and having a neighbor relation with a first cell served by a first base station (310), of at least the cell type of the first cell. This is accomplished by adding (410) the cell type information to a set of information to be signaled to the second base station, and then signalling (420) the set of information to the second base station.
