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LTE: what is CRE ? how to avoid it.

+2 votes

I am doing intra frequency (both cells operating on same center frequency ) handover ,but while doing handover between these two cells UE trigger CRE so RLF is happining. Please can any one suggest why and how to overcome this CRE.

posted Aug 22, 2014 by Bheemappa G

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CRE means Cell Range expansion mainly used with the picocell i.e. expansion of the pico-cell but I believe the concept should be applicable to the macro cell also. Which only answers first part...

How to avoid the CRE is know known to me????
Thanks for your reply.
  Let me explore more , from ue log i am getting sequences of following meassges at RRC:
        1) Received CRE trigger with cause xxxxx some number.
        2) Received phy_RL_failure .
I am not getting the relation between RLF and CRE. please can any one suggest me if have .

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