The present invention relates to a method for operating a mobile entity (100, 400) in a mobile communications network (50) which comprises at least one slice (51, 53), comprising the steps of: —determining to which slice of the mobile communication the mobile entity (100, 400) intends to connect, —determining whether a relationship can be identified in the mobile entity (100) via which the slice to which the mobile entity intends to connect, is related to an access point of the determined slice, wherein when the relationship is found in the mobile entity: —transmitting a request message to a radio access network of the mobile communications network including the identified relationship.