Cell Breathing in WCDMA

Ronney  Diamond  (1)
6 years 7 months ago  View: 1149  Reply: 3

Cell Breathing in WCDMA:

The cell coverage shrinks as the loading increases, this is called cell breathing.

In the uplink, as more and more UE are served by a cell, each UE needs to transmit higher power to compensate for the uplink noise rise. As a consequence, the UE with weaker link (UE at greater distance) may not have enough power to reach the NodeB–therefore a coverage shrinkage.

In the downlink, the NodeBalso needs to transmit higher power as more UE are being served. As a consequence UE with weaker link (greater distance) may not be reachable by the NodeB.

Planning must be done with respect to busy hour Traffic

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If load increases coverage area decreases & if load decreases coverage area increases

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Minimum Coverage will be at full load & Maximum coverage will be at lowest load

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Area between Maximum & Minimum coverage is called cell breathing area



 

s_kumar  Platinum 
6 years 7 months ago
Very interesting feature...
saiyan255  Silver 
6 years 7 months ago
very useful for planner and others...
Armetta  Diamond 
6 years 7 months ago
This document is very well done