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What is heterogeneous network in context of LTE?

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What is heterogeneous network in context of LTE?
posted Nov 8, 2013 by Neeraj Mishra

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2 Answers

+3 votes

In case homogeneous network all base stations have similar transmit power levels, antenna patterns, receiver noise,So all of the UEs get the same kind of dat flow and power levels so its very hard to decide when placing a base station.

But in case of heterogeneous network pico/femto/relay base stations present in a network and they provides at different power levels.For homogeneous network the signal coming from other station act as noise but in case of heterogeneous network they take in to consideration.

These low power level nodes like pico/femto cells can be deployed at coverage holes created due to macro cells deployment.

Heterogeneous network  from qualcomm pdf

Source
http://www.qualcomm.com/media/documents/files/lte-heterogeneous-networks.pdf

answer Nov 9, 2013 by Sachidananda Sahu
+2 votes

A network which is made from two different type of cells in same technology known as heterogeneous network. For example a pico cell is deployed within the coverage of already developed macro cell.
Due to such deployment scenario, both the cell can interfere to each other. This is called inter cell interface.

In Release 10 onwards, ICIC(Inter Cell Interference Co-ordination) .
For more details, Please refer this white-paper.
http://www.fujitsu.com/downloads/MAG/vol48-1/paper16.pdf

answer Nov 9, 2013 by Vimal Kumar Mishra
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