The infrastructure of an LTE cellular network comprises the E-UTRA/E-UTRAN air interface and the Evolved Packet Core (EPC), which includes the gateways, mobility management and subscriber databases.

This two-part article series reviews new developments in the Fourth Generation Long Term Evolution (4G-LTE) cellular standard. The series explores LTE-Advanced (LTE-A) Release-12 (Rel-12) features and ...