Artiza LTE eNB Test Solutions

What is LTE eNB?

One of the biggest differences between LTE network and legacy mobile communication system 3G is a base station. There used to be intelligent and centralizing node like RNC (Radio Network Controller) in 3G for example, and it needed to control all the radio resources and mobility over multiple NodeB (3G base stations) underneath in hieratical radio access network (Figure 21). All NodeB need to do is behave exactly according to command from RNC through Iub interface. In LTE, on the other hand, eNB (evolved NodeB) as base station have to manage radio resource and mobility in the cell and sector to optimize all the UE’s communication in flat radio network structure (Figure 22). Therefore, the performance of LTE eNB depends on radio resource management algorithm and its implementation.

Figure 21: 3G Radio Access Network (UTRAN) Architecture

Figure 21: 3G Radio Access Network (UTRAN) Architecture

Figure 22: E-UTRAN Architecture

Figure 22: E-UTRAN Architecture