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This paper enquires an approach of location aided handover for next generation system integration. For the future only the combination of heterogeneous networks can fulfill the expectations of customers in the sense of ubiquity and bandwidth. Therefore, sophisticated handover and interworking strategies are necessary, in our approach a new entity, called hybrid information system (HIS), gathers status information, like C/I values or free medium capacity, of all associated networks. Thus, a terminal willing to handover has no need to scan the other systems but can simply requests the information from the HIS. To be always connected to the best network regarding the user requirements and to maximize the overall performance it is important to find efficient handover algorithms. We introduce a simulative investigation of the efficiency of a HIS enabled system compared to a legacy solution with direct scanning of potential destination networks.