top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

While reestablishment How AS security will be re activated?

+1 vote
602 views

How UE receives Kenb while re establishing the connection ?

posted Jan 11, 2019 by Karan Patel
Share this question
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

0 votes

The new security keys are generated as part of rrc re-establishment procedure at the eNodeB. There is a field "nextHopChainingCount" in the rrc re-establishment message sent to UE. UE re-generates security keys based on this parameter.
Please refer the LTE security spec (33.401) to get more details on key generations.

answer Jan 11, 2019 by Harshita

Your answer

Preview
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.
Similar Questions
0 votes
Why Security Should be Activated to Initiate RRC Connection Re-establishment?

Upon detecting Radio Link Failure UE will do RRC Connection re-establishment but to do RRC Connection re-establishment security should be activated in UE, otherwise UE will go Idle mode.So here(After detecting RLF) we are resetting all PHY,MAC,RLC,PDCP Configurations but why we are making security should be there to do RRC Connection re-establishment.

+1 vote
What will be the behaviour of EnodeB with MME after receiving RRC Connection Reestablishment Complete message???

Which message EnodeB will communicate to MME after Receiving the Reestablishment Complete message from UE. what else messages will transverse between EnodeB and MME, before sending Reconfiguration message to UE from EnodeB after Reestablishment complete message has been received at EnodeB.

+2 votes
Why Security Should be needed to Initiate RRC Connection Re-establishment?

Upon detecting Radio Link Failure UE will do RRC Connection re-establishment but to do RRC Connection re-establishment security should be activated in UE, otherwise UE will go Idle mode.So here(After detecting RLF) we are resetting all PHY,MAC,RLC,PDCP Configurations but why we are making security should be there to do RRC Connection re-establishment.

0 votes
How other SIB scheduling information will be shard in NR?

Is it same as LTE or different scheduling information is shared?

0 votes
How UE will be authenticated in RRC inactive state?

Assume UE in mobility and RRC inactive sate,once UE wants to make any data connection how UE will be authenticated to make data connection ,because they claim it wont involve any authentication procedure and unnecessary control message then how it will be authenticated?

...