SIZING A 4G-LTE ACCESS NETWORK USING THE ATOOL TOOL

User needs in mobile telephony saw many twists and turns in the early 70s. The objective was to have a reliable means of wireless telecommunication capable of transmitting voice from one point to another. Years later, with the development of digital electronics, needs changed and we thought of improving the quality of services; so we digitized this first technique to have a new technology which is GSM in 1989. This technology was a huge success, and all the developed countries adopted it, but the rise of the Internet and data transmission showed GSM's limits. This led to the need to create a technology that would not only enable users to make and receive calls remotely, but also to benefit from Internet access with increasingly high mobile speeds.