A CDE Definition
(Evolved-UMTS Terrestrial Radio Access Network) E-UTRAN is the air interface in an LTE cellular network. Officially, E-UTRAN governs the base station, while E-UTRA (without the "N") defines the mobile device side. E-UTRAN uses the OFDMA modulation method for the downlink and SC-FDMA for the uplink. See LTE, LTE architecture, OFDMA, SC-FDMA and RAN.
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