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when UE send GUTI, IMSI, S-TMSI?

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When UE sends GUTI/STMSI to MME and what all massages are involved?

posted Apr 5, 2017 by anonymous

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1 Answer

+1 vote

UE sends IMSI during Attach Request and NW allocates a different identity to UE , that is GUTI in attach accept.
Now UE can use GUTI if it attaches again with Attach Request and Tracking Area Update Request.
S-TMSI is generally used as UE identity in the RRC Connection Request or in Paging.

answer Apr 11, 2017 by Anand Yadav
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