(
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.