4G Networks and Long Term Evolution

Arijit UkilTATA Consultancy

Services

Programmable LO ( DDS), to get same IF though RF is widely different

Demodulator ADC DDC P/SIF

Base-band Processing DSP, Implementing different base-band chain algorithms

Control

Binary Data to Higher layer

A study on EUTRA

CP: Cyclic Prefix, PS : Pulse Shaping

LNA DeModulator ADC DDC P/S

Remove Cyclic

Extension

N point (64) FFT

Down Conversion

S/PChannel Correction

(QAM) Mapping

DeInterleaver (Viterbi) Decoder

Descrambler Binary Data

Generic Radio

IFBase band

Transmitter counterpart

Receiver

+

An Altera SDR for Wireless