Integration Of Umts And B-isdn: Is It Possible Or Desirable? :: essays research papers

Integration Of UMTS And B-ISDN Is It Possible Or Desirable?INTRODUCTIONIn the succeeding(a), existent laid networks lead be complemented by nomadic networkswith similar numbers of users. These officious users bequeath have identicalrequirements and expectations to the fixed users, for on-demand applications oftelecommunications requiring high bit-rate melodys. It will be necessary forthese fixed and mobile networks to interoperate in order to follow out data, in realtime and at high speeds, between their users. barely how far must this interoperation be taken? How much integration of the fixedand mobile network structures is needed? Here, a fixed network, B-ISDN, and amobile network, UMTS, under development at the same time, are examined to seehow headspring and closely they should work together in order to meet anticipate userneeds. Work already taking place on this is discussed. dry landThe Universal Mobile Telecommunication System (UMTS), the third generation ofmobile networks, is presently being specified as part of the European gotechnology initiative. The aim of UMTS is to implement terminal mobility andpersonal mobility within its systems, providing a single world mobile standard.Outside Europe, UMTS is now known as International Mobile Telecommunications2000 (IMT2000), which replaces its previous name of Future Public region MobileTelecommunication System (FPLMTS). BUIT95UMTS is envisaged as providing the infrastructure needed to resist a wide rangeof multimedia digital services, or teleservices CHEU94, requiring channel bit-rates of less than the UMTS upper ceiling of 2 Mbits/second, as allocated to itin the World Administrative Radio Conference (WARC) 92 bands. UMTS must also hold water the traditional mobile services presently offered by separate networks,including cordless, cellular, paging, piano tuner local loop, and satelliteservices. BUIT95 Mobile teleservices requiring higher bit rates, from 2 to clvMbits/second, are expected t o be catered for by Mobile Broadband work (MBS),the eventual successor to UMTS, which is still under study. RACED732Broadband Integrated run Digital Network (B-ISDN), conceived as an all-purpose digital network that will supersede Narrowband ISDN (N-ISDN or ISDN), isalso still being specified. B-ISDN, with its transport point of AsynchronousTransfer Mode (ATM) is expected to be the backbone of future fixed digitalnetworks. MINZ89It is anticipated that, by the year 2005, up to 50% of all communicationterminals will be mobile. CHEU94 The Mobile Green Paper, issued by theEuropean Commission in 1994, predicts 40 million mobile users in the EuropeanUnion by 2000, rising to 80 million by 2010. This gives mobile users animportance ranking alongside fixed-network users. BUIT95One result of this harvest-time in mobile telecommunications will be the increase inteleservice operations that originate in either the fixed or mobile network, but