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 future, existing fixed internets will be complemented by runny networkswith connatural numbers of users. These wandering(a) users will have identicalrequirements and expectations to the fixed users, for on-demand applications oftelecommunications requiring lavishly bit-rate channels. It will be necessary forthese fixed and mobile networks to interoperate in roam to pass data, in realtime and at high speeds, amidst their users.But how far must this interoperation be taken? How much integrating of the fixedand mobile network structures is undeniable? Here, a fixed network, B-ISDN, and amobile network, UMTS, under development at the same time, are examined to analyzehow well and closely they should work together in order to collect expected userneeds. Work already taking place on this is discussed.BACKGROUNDThe Universal Mobile Telecommunication System (UMTS), the third generation ofmobile networks , is presently being specified as part of the European RACEtechnology 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 cognize as International Mobile Telecommunications2000 (IMT2000), which replaces its previous name of Future prevalent Land MobileTelecommunication System (FPLMTS). BUIT95UMTS is envisaged as providing the infrastructure needed to support 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 in like mannersupport the traditional mobile services presently offered by recrudesce networks,including cordless, cellular, paging, wireless local loop, and satelliteservices. BUIT95 Mobile teleservices requiring higher bit rates, from 2 to 155Mbits/second, are expecte d to be catered for by Mobile wideband Services (MBS),the eventual successor to UMTS, which is still under study. RACED732Broadband incorporated Services 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 contain layer of AsynchronousTransfer Mode (ATM) is expected to be the rear of future fixed digitalnetworks. MINZ89It is anticipated that, by the year 2005, up to 50% of all communicationterminals will be mobile. CHEU94 The Mobile gullible Paper, issued by theEuropean Commission in 1994, predicts 40 one million million 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 top of this growth in mobile telecommunications will be the increase inteleservice operations that originate in either the fixed or mobile network, but