name: LMF
full_form: Location Management Function
context: The 5GC NF provisioning the broadcast keys to the UE could also be the LMF for reusing the existing procedure of Ciphering Keys Delivery for Broadcast Assistance Data defined in clause 6.14.2 of TS 23.273 [9]. The LMF is used when the broadcasting UE needs to acquire positioning assistant data from the core network. In this case, the UE sends a request to the AMF, which selects a LMF for invoking network assistant data transfer. Before the LMF starts to deliver the network assistant data, it needs to obtain the broadcast keys for protecting the network assistant data. Figure 6.26.2-2: Key Provisioning via the LMF for SLPP Broadcast Protection 1. Upon receiving the request for network assistant data delivery, the LMF of B-UE sends a key request to the Central Key Management Function to request keys for the UE to broadcast SLPP signaling. 2. The Central Key Management Function returns the broadcast keys for SLPP signaling to the LMF of B-UE. 3. The LMF of B-UE invokes the
description: The Location Management Function (LMF) is responsible for managing location-related services and procedures in the 5G core network. This includes key provisioning for broadcast protection and positioning assistant data transfer.
explanation: The text states that LMF is a function within the 5G core network responsible for specific tasks like key provisioning and data transfer, which are characteristic of network functions.
section_title: 6.26.2.3	Key provisioning via the LMF
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