eNB – Evolved Node B
The eNB serves as the base station within the E-UTRAN, terminating the air interface on the network side. Consequently, the eNB is responsible for all radio resource management, as well as allocation of user traffic to the downlink/uplink, security and relaying of higher layer NAS (Non Access Stratum) signalling to the MME (Mobility Management Entity). The eNB is also capable of conducting an inter eNB handover procedure via the X2 interface.
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