EPS: LTE + SAE

In this lecture Henar talks about LTE (Long Term Evolution) ,the natural evolution of UMTS. The most important reason to look for LTE has been the need to have more capacity of users simultaneously. Moreover, it allows higher speeds, as we have said 200 Mbps for downlink. Another important aspect is that with LTE all is based on IP.

About SAE (System Architecture Evolution), she explains that provides lower latency, costs (CAPEX and OPEX) and complexity and higher compatibility with other technologies. This architecture is considered functional, scalable, relatively cheap, flexible with other technologies and secure.

LTE/SAE together provides spectrum flexibility, reduced TCO and high performance for Mobile Broadband networks and smooth migration to a flat and optimized 2-node architecture. It also provides cost efficiency, high performance and network migration being targeted and a scalable and robust architecture. In addition, it’s all IP based and it’s compatible with 2G / 3G and other technologies.