Friday, July 17, 2015

LTE - Phy layer

PHY LAYER:

The most interesting part of the LTE is the PHY layer functionality. If any one asks how the bit stearms are carried in PHY layer? I say it by Channels!

The Phy channels posses interesting individuality in its own aspect. what are the channels present? There are many. Few works for UL control & Data, Few for DL control & Data.

Lets discuss about the DL channels 1st...

There are as many as 6 DL channels present in PHY.

1. PBCH
2. PCFICH
3. PHICH
4. PDCCH
5. PDSCH
6. PMCH

What about UL channels in PHY? They are as follows:

1. PUCCH
2. PUSCH

We will see each & every channel in detail in the upcoming pages...

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