文档介绍：On 3G LTE Terminal Implementation – Standard,
Algorithms, Complexities and Challenges
Jens Berkmann, Cecilia Carbonelli, Frank Dietrich, Christian Drewes, Wen Xu
Infineon Technologies AG
Am Campeon 1-12, 85579 Neubiberg, Germany
@
(Invited Paper)
Abstract—Currently, 3GPP standardizes an evolved e quite stable recently for a first implementation.
(E-UTRAN) within the Release 8 Long Term Evolution (LTE) The air interface of E-UTRAN is based on OFDMA (Or-
project. Targets include higher spectral efficiency, lower latency, thogonal Frequency Division Multiple Access) and MIMO
higher peak data rate pared to previous 3GPP air inter- (Multiple-Input Multiple Output) in downlink (DL) and on
faces. The air interface of E-UTRAN is based on OFDMA and
MIMO in downlink and on SCFDMA in uplink. Main challenges SCFDMA (Single Carrier Frequency Division Multiple Ac-
for a terminal implementation include efficient realization of the cess) in uplink (UL) direction. Main challenges for a terminal
inner receiver, especially for channel estimation and equalisation, implementation include efficient realization of the inner re-
and the outer receiver including a turbo decoder which needs to ceiver, especially for channel estimation and equalisation, and
handle data rates of up to 75 Mbps per spatial MIMO stream. We the outer receiver including a