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Can different operator share the same band with different PCI in same geographical location?

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Can different operator share the same band with different PCI in same geographical location?
posted Oct 31, 2017 by Ankit Mishra

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1 Answer

+1 vote

First of all two eNodeBs operating on same frequency would create interference to each other even though PCI get selected using Zadoff-Chu and M-Sequences where these sequences should have good correlation properties. In field deployment, each operator uses different frequencies. It is possible multiple operators are part of same band but they would operate in the different frequency range.
For example : In LTE band 40 (2300 MHz to 2400 MHz) TDD band, multiple operators such as Airtel and Aircel work.
The objective of proper PCI selection is to reduce the interference between two neighboring cells which are operating in same frequency.

answer Nov 1, 2017 by Ganesh
Thankyou, as per your last point in the answer,interference can be avoided by using different PCI then why cant they use different PCI for same frequency for two different ENB's in same location
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While collecting UE logs i come across this situation. single operator has two different band ENB in single place , Is this fro any specific reason?

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Since eNodeB can have information about channel quality with finer granularity through selected
subband CQI, wouldn’t it make sense to have MCSs defined on a per‐RB (or a group of RB) basis rather
than a single MCS per UE across all allocated RBs for a codeword?

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