Description: A TUTORIAL ON LTE EVOLVED UTRAN (EUTRAN) AND
LTE SELF ORGANIZING NETWORKS. The main features of LTE are high peak data rate, flexibility of spectrum usage, low latency
times, higher capacity per cell, etc. The radio interface of LTE is based on Orthogonal
Frequency Division Multiple Access (OFDMA) in the downlink and Single Carrier-Frequency
Division Multiple Access (SC-FDMA) in the uplink. LTE undergoes a major design change in its
Core Network Architecture. The previously used separate cores for Voice and Data in 3G are
being replaced by a single packet based or an all-IP core in LTE. This evolution of the Core
Network is commonly referred to as System Architecture Evolution (SAE).
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