The Magic WAND project, implemented in the context of the ACTS Programme of the European Commission, aims to introduce ATM technology in wireless CPN environments, allowing mobile terminals to support multimedia traffic. Towards this objective, certain procedures like Handover, Location Update and Registration need to be designed in an efficient way. This paper discusses the network architecture, its constituent functional entities as well as the algorithms needed in support of mobility. Throughout the design of the WAND architecture, special provision has been taken to minimise impact upon the fixed ATM infrastructure and to reuse existing technology. In this respect, existing versions of B-ISDN signalling protocols (Q.2931, ATMF UNI 3.1) are used, which are enhanced by supplementary mobility related signalling messages.
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