Section: Annex M (normative): Security for Integrated Access and Backhaul (IAB) M.1 General
Content: This Annex provides the security procedures applied to NR IAB architecture and functional entities for supporting wireless backhauling of NR base stations. The overall stage 2 description for IAB architecture and functional entities are described in 3GPP TS 23.501[ System architecture for the 5G System (5GS) ]  [2] and 3GPP TS 38.401[ NG-RAN; Architecture description ]  [78]. The security requirements and security procedures applied to IAB in EN-DC architecture are defined in both TS 33.401[ 3GPP System Architecture Evolution (SAE); Security architecture ]  [10] and in the present document. The security requirements and security procedures between the IAB-node and the MeNB (i.e., when the IAB-node connects via E-UTRA to a MeNB), are defined in TS 33.401[ 3GPP System Architecture Evolution (SAE); Security architecture ]  [10] and between the IAB-node and the SgNB (F1 interface) are defined in this clause.