In the 1980s and 1990s computers, which used to be available only at large companies, universities and research institutions, due to their falling prices showed up at the homes of more and more people. The need to access remote computers and the data stored on them from these home computers was born. This resulted a rapid development of computer networks. Initially these connections used the phones lines (the PSTN network) via MODEMs using TELNET or FTP protocols to access remote machines. Later worldwide networks, like COMPUSERVE or the INTERNET became available for everyday people and grew exponentially. The ever growing data traffic due to new content types, like pictures, videos and multimedia applications prompted service providers and equipment makers to invest in rapid development of new interfaces for the home networks. High speed xDSL, cable networks and FTTX became widely available.
Similar developments took place during the last two decades in the mobile communication as well. While the first generation mobile networks built and operated at staggering costs only made voice calls possible and were affordable only for a few customers, the second generation networks were much more widely used as the cost was drastically reduced due to technical developments. With these 2G networks data transmission became possible. The need for mobile access, the rapid development of internet content and the improvements in the wired networks had completely changed the world of mobile communication resulting the 3.5G (HSPA, HSPA+) and 4G (LTE) full IP networks and radically new service structures that are being deployed nowadays.
In this work I will show a HLD level green field plan of a new network for a fictional new service provider with more details about a limited area.