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Why RRC Re-establishment procedure really needed?

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If we drop all the data when link got failure and Reset RLC , PDCP and MAC. And also flushout UE context, ongoing radio barriers (except SRB0).

why cant to start a fresh connection ? why really needed Re-establishment procedure?

posted Sep 12, 2016 by Suchakravarthi Sripathi

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1 Answer

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Hi,

If re establishment is not there then UE has to start a connection fresh, that means it has to follow all fresh attach procedure but it is not needed , because already UE context is present in MME and ENb, So re establishment will save all those attach procedure time. It will have only 3 msg communication, Re-establishment request, re-establishment msg, re-establishment complete.

answer Sep 12, 2016 by Jaganathan
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