... interleaving. The goal of interleaving is to minimize the impact of the peculiarities of the Air-interface that account for rapid, short-term changes of the quality of the 100 GSM Networks: Protocols, ... andprocessing of a PART_REL message.7 The Air-Interface of GSM The Air-interface is the central interface of every mobile system and typically the only one to which a customer is exposed. The physical ... cost? The answer to that question eventually will decide the winner of the recently erupted battle among the various mobile standards.7.1 The Structure of the Air-Interface in GSM 7.1.1 The FDMA/TDMA...