A method and system are provided for enabling an MS operative in a multi-layer wireless network, to be handed over to a target BS associated with another one of the multi-layers. By the method provided, if it is required that the MS which has not yet been provided with information that relates to a potential target BS associated with a layer different from the one with which its currently serving BS, be handed over to such a target BS, then upon receiving an acknowledgement from the target BS indicating its capability to provide service to the MS, a message is transmitted to the MS that comprises information to enable the MS to perform a fast network re-entry in order to communicate with the target BS. Next, a handover procedure between the MS and the target BS is initiated, during which the MS performs a fast network re-entry.