eNodeB: Consists of the baseband processing unit eBBU and the RF processing unit eRRU, which implements the air interface access function of the terminal.
eCNS: The core network provides subscription data management, authentication management, mobility management, gateway management, and digital trunking services. Applies to large-capacity networks.
eSCN: A small switching gateway that provides subscription data management, authentication management, mobility management, gateway management, and digital trunking services. Applies to small- and medium-capacity networks.
EAPP: The multimedia dispatching center of the service software system provides the multimedia dispatching function related to the cluster. Use gateways to connect to external networks such as PSTN and Tetra.
eDC: The dispatching console of the service software system provides a graphical user interface (GUI) for cluster scheduling.
eMRS: The multimedia video server of the service software system provides functions such as recording, recording, and playback.
EOMC: The network management system (NMS) provides O&M and management for the core network, switching gateway, base station, service software system, and terminals.
eUDC: A platform that is used to construct security access application policies. It provides registration management, user information management, terminal device management, and IMEI verification, and provides the push service and login authentication service for terminals.
