name: MME-RN
full_form: MME serving the RN
context: on the USIM-RN. The attach request shall indicate âRN attaching as relayâ. A2. The MME-RN runs EPS AKA with the RN and the USIM-RN and establishes NAS security. The USIM-RN computes KASME and returns this key to the RN, as the AUTHENTICATE command was received by the USIM-RN over a secured channel. The RN shall use only keys in an RN attach procedure that were received from the USIM-RN over the Secure Channel. A3. The MME-RN checks from the RN-specific subscription data received from the HSS that the USIM-RN is dedicated to the use in relay node procedures. When the MME-RN receives an attach request without the indication âRN attaching as UEâ the MME-RN takes KASME as received from the HSS and uses it in further key derivations instead of KASME . The MME-RN communicates the fact that the attachment is for relay nodes to the DeNB in an extended S1 INITIAL CONTEXT SETUP message. (It is ffs whether an explicit indication in the RN attach request is required. It is also ffs whether other
description: The Mobility Management Entity serving the Relay Node (MME-RN) is a network function responsible for managing relay node attachments and authentications within the EPS (Evolved Packet System) architecture. It interacts with the Relay Node (RN), User Services Identity Module for Relay Node (USIM-RN), and Home Subscriber Server (HSS) to establish NAS security, compute keys, and validate subscription data.
explanation: MME-RN is classified as a Network Function based on its role in managing relay node attachments, authentications, and key derivations within the EPS architecture, as highlighted by the context from 3GPP TS 33.816.
section_title: 10.12.2	Security Procedures
biotag_Context: O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,B-Network,B-Protocol,O,O,B-Network Function,O,O,O,O,O,B-Protocol,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,B-Parameter,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,B-Miscellaneous,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O
biotag_Description: O,B-Network Function,I-Network Function,I-Network Function,O,O,B-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,B-Network Function,I-Network Function,O,B-Device,I-Device,I-Device,I-Device,O,B-Network Function,I-Network Function,O,O,B-Network Function,I-Network Function,I-Network Function,O,O,O,B-Protocol,O,O,O,O,O,O,O