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what are the possible scenarios when UE triggers RRC connection re-establishment ?

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posted Sep 10, 2013 by Neeraj Mishra

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1 Answer

+2 votes

There are many causes to trigger RRC connection re-establishment by UE. Some of the causes I have listed down.
1. Due to integrity check failure at lower layers of UE stack.
2. Due to RRC connection reconfiguration failure.
3. Mobility from E-UTRA failure.
4. Intra LTE handover failure.
5. Radio link failure.

One more interesting thing is that while executing handover. If handover gets failed then RRC connection re-establishment request can come to either side(source eNodeB or target eNodeB).

Hope this brief answer will help out.

answer Sep 10, 2013 by Vimal Kumar Mishra

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