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LTE: Why the user plane data is not integrity protected before sending to UE over the air ?

+2 votes
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I know integrity protection is imposed for RRC messages that are exchanged between UE and eNodeB. What would be the reason for not having the integrity for user plane traffic ?

posted Sep 1, 2016 by Ganesh

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Hi ganesh,

Refer this link, harshita has explained very clearly

http://tech.queryhome.com/134077/why-we-dont-have-intergrity-protection-for-drbs

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+2 votes

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+4 votes

There are couple of procedures are defined which consist of NAS as well as RRC signalling messages exchange.
Some of the NAS message sends to an UE through RRC Connection Reconfiguration message as piggybacked and some as DL Info transfer.

I want to know, Is there any procedure exists in lte when an UE receives RRC Connection Reconfiguration along with NAS message and responds back to network with NAS message first and then Reconfiguration Complete to eNodeB.

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+1 vote

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