Why is LTE important

Long Term Evolution (LTE) is important because it will bring up to a 50x performance improvement and much betterspectral efficiency to cellular networks. LTE is different from other technologies that call themselves 4G because it is completely integrated into the existing cellular infrastructure for 2G and 3G.

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LTE- UPLINK Physical layer Singnalling.

Up link L1/L2 control signalling is divided into two classes in the LTE system

1. Control signalling in absence of up-link data , which is done by PUCCH ( Physical up-link control channel) i.e when the UE is in IDLE Mode and has no dedicated resources allocated to it, only then the control signalling is carried on PUCCH.

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System Information Blocks and their contents

SIB 1: Cell access related parameters and scheduling

SIB 2: Common and shared channel configuration

SIB 3: Parameters required for intra-frequency cell reselections

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