LTE Cell Interference: In Lte, how does cell interference control ?

Question

As per my knowledge, LTE technology has frequency reuse factor 1, which means same frequency can be used two or more eNodeBs. As per my knowledge, cell interference can be controlled by using different PCI to each of the neighbor nodes.

I want to know, Are there any other things being used to avoid cell interference in lte technology or just PCI i.e physical cell identity is just enough to avoid cell interference.

Answer 1

Not only PCI ,In real time PCI + EARFCN should be unique in that local area where interference may occur.

EARFCN represents a number which tlks about the frequency of the operation.

So case possible like Two ENB having same PCI with different EARFCN and no interference.

ICIC and EICIC lso used which gives the concept of resour block scheduling, Absolute blank subframe to reduce interference.

Answer 2

You can use as well technics of CARRIER AGREGATION especially if you have 2 layers Macro/Micro