name: CBE
full_form: Cell Broadcast Entity
context: respects: Structure of Certificate Authorities (CAs) Distribution of public root keys Certificate format Public root key is used to authenticate CBE certificates. If it succeeds, UE can verify the warning message afterwards by using the public keys for PWS carried in CBE certificates. After terminal is configured with CBE certificates, it can verify warning messages sent from CBEs. Since UE may receive warning messages signed by different CBEs, which CBE certificate should be used is a problem. A parameter combined with the warning message is needed to indicate which CBE certificate to be used. This parameter is the CBE identifier, which suffices for this purpose, as the UE should have only one certificate for one CBE at a given point in time.
description: The Cell Broadcast Entity (CBE) is a network function responsible for broadcasting warning messages to user equipment (UE) in a cellular network. It plays a crucial role in the public warning system (PWS), authenticating and verifying warning messages sent to UEs.
explanation: Based on its role in broadcasting messages, authenticating warnings, and interacting with user equipment, the CBE fulfills the characteristics of a Network Function as defined in 3GPP standards.
section_title: 7.7.1	Introduction
biotag_Context: 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,B-Device,O,O,O,O,O,O,O,O,O,O,O,O,B-Service,O,O,B-Network Function,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,B-Device,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,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O,O,O,B-Device,O,O,O,O,O,O,O,B-Network Function,O,O,O,O,O,O
biotag_Description: O,B-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O