Evolution scenario of broadband services based on granulated broadband network concept

An evolution scenario of broadband services is proposed with a new asynchronous transfer mode (ATM) platform concept named granulated broadband network (GBN). High-speed LAN interconnection service will be the first ATM broadband application, followed by ATM public switched services for medium-sized customers providing a flexible information outlet with several megabits-per-second capacity. These ATM private network and public switched services can be achieved economically by constructing a GBN platform on which all information carried by existing public switched telephone network (PSTN) services as well as broadband services is transformed into ATM cells at subscriber line terminals or at customer premises