LTE. The 3rd generation partnership project
(3GPP) led to the development of LTE.
The downlink (from the base station to the device)
uses OFDM access (OFDMA) or multiple
carriers in the downlink. The uplink (from the
device to the base station) uses a single-carrier
FDMA. LTE supports multi-antenna technologies,
such as MIMO, and has been adopted by
Verizon as well as AT&T, T-Mobile, and Sprint.
The ongoing
work on LTE Advanced will result
in “true” 4G speeds and bit rates.