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The present document contains the results of a Stage 2 study and evaluation of possible 3GPP security solutions in
support of Isolated E-UTRAN Operation for Public Safety (IOPS). The solutions are based on the Stage 1 requirements
in TS 22.346
, the architectural enhancements to support IOPS presented in the Stage 2 study report 3GPP
and resulting informative Annex K in TS 23.401
. For the current release of specification the
solution in 3GPP TS 23.401 is based on a Local EPC with no backhaul.
The present document identifies key issues, security threats, deduces security requirements and presents proposed
security solutions for IOPS.
Throughout this Technical Report the terms 'IOPS network' and 'Isolated E-UTRAN' are used synonymously.